{"id":11485,"date":"2026-06-25T06:34:34","date_gmt":"2026-06-25T06:34:34","guid":{"rendered":"https:\/\/weldomachining.com\/?p=11485"},"modified":"2026-06-25T06:39:11","modified_gmt":"2026-06-25T06:39:11","slug":"steel-strength","status":"publish","type":"post","link":"https:\/\/weldomachining.com\/ko\/steel-strength\/","title":{"rendered":"\uac15\uc7ac \uac15\ub3c4 \uac00\uc774\ub4dc: \uc885\ub958, \ud2b9\uc131 \ubc0f \uc6a9\ub3c4"},"content":{"rendered":"

\uac00\uacf5 \ubc0f \uc2e0\uc81c\ud488 \uc124\uacc4\uc5d0\uc11c \uac15\uc7ac \uc120\uc815\uc740 \ubd80\ud488\uc758 \uac15\ub3c4, \uac00\uacf5 \ub09c\uc774\ub3c4, \uc218\uba85 \ubc0f \uc81c\uc870 \ube44\uc6a9\uc5d0 \uc9c1\uc811\uc801\uc778 \uc601\ud5a5\uc744 \ubbf8\uce69\ub2c8\ub2e4. \uc5d4\uc9c0\ub2c8\uc5b4, \uad6c\ub9e4 \ub2f4\ub2f9\uc790 \ubc0f \uc81c\ud488 \uc124\uacc4\uc790\uac00 \uac15\uc7ac\uc758 \uc131\ub2a5\uc744 \ub354 \uc798 \uc774\ud574\ud560 \uc218 \uc788\ub3c4\ub85d \ub3d5\uae30 \uc704\ud574, \uc774 \uae30\uc0ac\uc5d0\uc11c\ub294 \uc778\uc7a5 \uac15\ub3c4, \ud56d\ubcf5 \uac15\ub3c4, \ub0b4\uad6c \uac15\ub3c4\uc640 \uac19\uc740 \uc8fc\uc694 \uac15\ub3c4 \uc9c0\ud45c\ub97c \uc124\uba85\ud558\uace0, \uc77c\ubc18\uc801\uc778 \uac15\uc7ac \uc885\ub958\uc640 \ub300\ud45c\uc801\uc778 \ubd80\ud488 \uc801\uc6a9 \uc0ac\ub840\ub97c \ubd84\uc11d\ud569\ub2c8\ub2e4. \ub610\ud55c \uc774 \uae30\uc0ac\ub294 \uc7ac\ub8cc \uc120\uc815 \ubc0f \uac00\uacf5 \uacf5\uc815 \uacc4\ud68d \uc218\ub9bd\uc744 \uc704\ud55c \uc2e4\uc6a9\uc801\uc778 \ucc38\uace0 \uc790\ub8cc\ub97c \uc81c\uacf5\ud569\ub2c8\ub2e4.<\/p>\n\n\n\n

\"\uac15\ucca0\uc758<\/figure>\n\n\n\n

\uac15\ub3c4 \ub4f1\uae09<\/strong><\/h2>\n\n\n\n

\uac15\ucca0\uc758 \ud56d\ubcf5 \uac15\ub3c4<\/strong><\/strong><\/h3>\n\n\n\n

\uac15\ucca0\uc758 \ud56d\ubcf5 \uac15\ub3c4\ub780 \uac15\ucca0\uc774 \ub69c\ub837\ud55c \uc18c\uc131 \ubcc0\ud615\uc744 \uc77c\uc73c\ud0a4\uae30 \uc2dc\uc791\ud558\ub294, \uc989 \uc601\uad6c \ubcc0\ud615\uc774 \uc2dc\uc791\ub418\ub294 \uc751\ub825\uc744 \ub9d0\ud569\ub2c8\ub2e4. \uc774\ub294 \uac15\ucca0\uc774 \ubcc0\ud615\uc5d0 \uc800\ud56d\ud558\ub294 \ub2a5\ub825\uc744 \ub098\ud0c0\ub0b4\uba70, \uc77c\ubc18\uc801\uc73c\ub85c \ub2e4\uc74c\uacfc \uac19\uc774 \uacc4\uc0b0\ub429\ub2c8\ub2e4. \u03c3y = Fy \/ A0<\/strong>, \uc5ec\uae30\uc11c Fy<\/strong> \uc218\uc728 \ud558\uc911\uc774\uba70, A0<\/strong> \ub294 \uc6d0\ub798\uc758 \ub2e8\uba74\uc801\uc785\ub2c8\ub2e4. \uc77c\ubc18\uc801\uc73c\ub85c \uc0ac\uc6a9\ub418\ub294 \ub2e8\uc704\ub294 MPa<\/strong> or N\/mm\u00b2<\/strong>.<\/p>\n\n\n\n

\uc77c\ubc18\uc801\uc73c\ub85c, \uc0ac\uc6a9 \uc911 \uc601\uad6c\uc801\uc778 \uad7d\ud798, \uc778\uc7a5 \ub610\ub294 \uc555\ucd95 \ubcc0\ud615\uc744 \ubc29\uc9c0\ud558\uae30 \uc704\ud574 \uc124\uacc4 \uc751\ub825\uc740 \ud56d\ubcf5 \uac15\ub3c4 \uc774\ud558\ub85c \uc720\uc9c0\ub418\uc5b4\uc57c \ud569\ub2c8\ub2e4. \uba85\ud655\ud55c \ud56d\ubcf5\uc810\uc774 \uc5c6\ub294 \uc2a4\ud14c\uc778\ub9ac\uc2a4\uac15\uc774\ub098 \uace0\uac15\ub3c4\uac15\uc758 \uacbd\uc6b0, 0.2% \uc778\uc7a5 \uac15\ub3c4, Rp0.2<\/strong>, ,\ub294 \uc77c\ubc18\uc801\uc73c\ub85c \ud56d\ubcf5 \uac15\ub3c4\ub97c \ub098\ud0c0\ub0b4\ub294 \ub370 \uc0ac\uc6a9\ub429\ub2c8\ub2e4.<\/p>\n\n\n\n

\"\uac15\uc7ac<\/figure>\n\n\n\n

\uc601\ud5a5\uc744 \ubbf8\uce58\ub294 \uc694\uc778:<\/strong><\/strong><\/p>\n\n\n\n

\ud0c4\uc18c, \ub9dd\uac04, \uaddc\uc18c\uc640 \uac19\uc740 \uc6d0\uc18c\ub294 \uacb0\uc815 \uaca9\uc790\uc5d0 \uc6a9\ud574\ub418\uc5b4 \uaca9\uc790 \uc65c\uace1\uc744 \uc77c\uc73c\ud0a4\uba70, \uc774\ub97c \ud1b5\ud574 \uc6a9\uccb4 \uac15\ud654 \uc791\uc6a9\uc744 \uc77c\uc73c\ucf1c \uac15\ucca0\uc758 \ud56d\ubcf5 \uac15\ub3c4\ub97c \ud5a5\uc0c1\uc2dc\ud0ac \uc218 \uc788\ub2e4;<\/p>\n\n\n\n

\ub2c8\uc624\ube00, \ubc14\ub098\ub4d0, \ud2f0\ud0c0\ub284\uacfc \uac19\uc740 \ubbf8\uc138\ud569\uae08 \uc6d0\uc18c\ub294 \ubbf8\uc138\ud55c \ud0c4\ud654\ubb3c \ub610\ub294 \uc9c8\ud654\ubb3c \uc785\uc790\ub97c \ud615\uc131\ud558\uace0, \uc804\uc704\ub97c \uace0\uc815\uc2dc\ud0a4\uba70, \uacb0\uc815\ub9bd \uc131\uc7a5\uc744 \uc5b5\uc81c\ud568\uc73c\ub85c\uc368 \uac15\ub3c4\ub97c \ub354\uc6b1 \ub192\uc77c \uc218 \uc788\ub2e4.<\/p>\n\n\n\n

\ubc18\uba74, \uc778\uc774\ub098 \ud669\uacfc \uac19\uc740 \ubd88\uc21c\ubb3c \uc6d0\uc18c\ub294 \uacb0\uc815\uacc4\uba74\uc5d0 \ubd84\ub9ac\ub418\uac70\ub098 \ub0b4\ud3ec\ubb3c\uc744 \ud615\uc131\ud558\ub294 \uacbd\ud5a5\uc774 \uc788\uc5b4, \uacb0\uc815\uacc4\uba74 \uacb0\ud569\uc744 \uc57d\ud654\uc2dc\ud0a4\uace0 \ucde8\uc131\uc744 \uc99d\uac00\uc2dc\ud0a4\uba70, \uc2e4\uc81c \uc0ac\uc6a9 \uc2dc \uac15\ucca0\uc758 \uc548\uc815\ub41c \ud558\uc911 \uc9c0\uc9c0 \ub2a5\ub825\uc744 \uc800\ud558\uc2dc\ud0b5\ub2c8\ub2e4.<\/p>\n\n\n\n

\uac15\ucca0\uc758 \uc778\uc7a5 \uac15\ub3c4<\/strong><\/strong><\/h3>\n\n\n\n

\uc778\uc7a5 \uac15\ub3c4\ub780 \ud45c\uc900 \uc778\uc7a5 \uc2dc\ud5d8\uc5d0\uc11c \uac15\uc7ac\uac00 \ud30c\ub2e8\ub418\uae30 \uc804\uae4c\uc9c0 \uacac\ub51c \uc218 \uc788\ub294 \ucd5c\ub300 \uacf5\ud559\uc801 \uc751\ub825\uc744 \ub9d0\ud558\uba70, \uc77c\ubc18\uc801\uc73c\ub85c \ub2e4\uc74c\uacfc \uac19\uc774 \uacc4\uc0b0\ub429\ub2c8\ub2e4. \u03c3b = Fmax \/ A0<\/strong>, \uc5ec\uae30\uc11c Fmax<\/strong> \ub294 \ucd5c\ub300 \uc778\uc7a5 \ud558\uc911\uc774\uba70, A0<\/strong> \ub294 \uc6d0\ub798\uc758 \ub2e8\uba74\uc801\uc785\ub2c8\ub2e4. \uc77c\ubc18\uc801\uc73c\ub85c \uc0ac\uc6a9\ub418\ub294 \ub2e8\uc704\ub294 MPa<\/strong> or N\/mm\u00b2<\/strong>. \ub54c\ub85c\ub294 \uac15\ucca0\uc758 \uadf9\ud55c \uc778\uc7a5 \uac15\ub3c4\ub77c\uace0\ub3c4 \ubd88\ub9bd\ub2c8\ub2e4. \uc774\ub294 \uc7ac\ub8cc\uac00 \uade0\uc77c\ud55c \uc18c\uc131 \ubcc0\ud615\uc5d0\uc11c \uad6d\ubd80\uc801 \ubcc0\ud615, \uc989 \ubaa9 \ud604\uc0c1\uc73c\ub85c \uc804\ud658\ub418\ub294 \uc784\uacc4\uc810\uc744 \ub098\ud0c0\ub0b4\uba70, \uc815\uc801 \uc778\uc7a5 \ud558\uc911 \ud558\uc5d0\uc11c \uc7ac\ub8cc\uac00 \uacac\ub51c \uc218 \uc788\ub294 \ucd5c\ub300 \ud558\uc911 \ud55c\uacc4\ub97c \uc758\ubbf8\ud569\ub2c8\ub2e4.<\/p>\n\n\n\n

\"\"<\/figure>\n\n\n\n

\uac15\ucca0\uc758 \uc778\uc7a5 \uac15\ub3c4\uc5d0 \uc601\ud5a5\uc744 \ubbf8\uce58\ub294 \uc694\uc778:<\/strong><\/strong><\/p>\n\n\n\n

\ud0c4\uc18c \ud568\ub7c9\uc744 \uc801\uc808\ud788 \ub192\uc774\uba74 \uc778\uc7a5 \uac15\ub3c4\ub97c \ud5a5\uc0c1\uc2dc\ud0ac \uc218 \uc788\uc9c0\ub9cc, \ud0c4\uc18c \ud568\ub7c9\uc774 \uc9c0\ub098\uce58\uac8c \ub192\uc73c\uba74 \uc5f0\uc131\uacfc \uc778\uc131\uc774 \uc800\ud558\ub418\uace0, \uc2ec\uc9c0\uc5b4 \uac15\ucca0\uc774 \ucde8\uc131\ud654\ub418\uc5b4 \uc778\uc7a5 \uc131\ub2a5\uc774 \ub5a8\uc5b4\uc9c8 \uc218\ub3c4 \uc788\ub2e4.<\/p>\n\n\n\n

\ub9dd\uac04, \uaddc\uc18c, \ud06c\ub86c, \ubab0\ub9ac\ube0c\ub374, \ubc14\ub098\ub4d0\uacfc \uac19\uc740 \ud569\uae08 \uc6d0\uc18c\ub294 \uc6a9\uccb4 \uac15\ud654, \ud0c4\ud654\ubb3c \uac15\ud654 \ubc0f \uacb0\uc815\ub9bd \ubbf8\uc138\ud654\ub97c \ud1b5\ud574 \uac15\ucca0 \ub9e4\ud2b8\ub9ad\uc2a4\uc758 \uac15\ub3c4\ub97c \ub192\uc77c \uc218 \uc788\uc73c\uba70;<\/p>\n\n\n\n

\ub2c8\ucf08\uc740 \uc6b0\uc218\ud55c \uc5f0\uc131\uc744 \uc720\uc9c0\ud558\uba74\uc11c \uac15\ub3c4\ub97c \ud5a5\uc0c1\uc2dc\ud0ac \uc218 \uc788\uc73c\uba70, \uc9c8\uc18c\ub294 \ub4c0\ud50c\ub809\uc2a4 \uc2a4\ud14c\uc778\ub9ac\uc2a4\uac15\uc5d0\uc11c \uc0c1\ub2f9\ud55c \uc0bd\uc785\ud615 \uace0\uccb4\uc6a9\ud574 \uac15\ud654 \ud6a8\uacfc\ub97c \uc81c\uacf5\ud569\ub2c8\ub2e4.<\/p>\n\n\n\n

\ubc18\uba74, \ud669, \uc778, \uc0b0\uc18c\uc640 \uac19\uc740 \uc720\ud574 \ubd88\uc21c\ubb3c\uc740 \uc27d\uac8c \ud760\uc744 \ud615\uc131\ud558\uac70\ub098 \uacb0\uc815\uacc4 \ubd84\ub9ac \ud604\uc0c1\uc744 \uc77c\uc73c\ucf1c, \uc7ac\ub8cc\uc758 \uc5f0\uc18d\uc131\uacfc \uc778\uc131\uc744 \uc57d\ud654\uc2dc\ud0a4\uace0 \uac15\ucca0\uc758 \uc2e4\uc81c \uc778\uc7a5 \uac15\ub3c4\ub97c \uc800\ud558\uc2dc\ud0b5\ub2c8\ub2e4.<\/p>\n\n\n\n

\uac15\uc7ac\uc758 \uc804\ub2e8 \uac15\ub3c4<\/strong><\/strong><\/h3>\n\n\n\n

\uac15\uc7ac\uc758 \uc804\ub2e8 \uac15\ub3c4\ub780 \uc804\ub2e8\ub825\uc774 \uc791\uc6a9\ud560 \ub54c \uc778\uc811\ud55c \ub2e8\uba74 \uc0ac\uc774\uc5d0\uc11c \ubc1c\uc0dd\ud558\ub294 \uc0c1\ub300\uc801 \ubbf8\ub044\ub7ec\uc9d0, \uc804\ub2e8 \ubcc0\ud615 \ub610\ub294 \uc804\ub2e8 \ud30c\uad34\uc5d0 \uac15\uc7ac\uac00 \uc800\ud56d\ud558\ub294 \ucd5c\ub300 \uc751\ub825 \uac12\uc744 \ub9d0\ud558\uba70, \uc77c\ubc18\uc801\uc73c\ub85c \ub2e4\uc74c\uacfc \uac19\uc774 \uacc4\uc0b0\ub429\ub2c8\ub2e4. \u03c4 = F \/ A<\/strong>, \uc5ec\uae30\uc11c F<\/strong> \ub294 \uc804\ub2e8\ub825\uc774\uba70, A<\/strong> \ub294 \uc804\ub2e8 \uba74\uc801\uc785\ub2c8\ub2e4. \uc77c\ubc18\uc801\uc73c\ub85c \uc0ac\uc6a9\ud558\ub294 \ub2e8\uc704\ub294 MPa<\/strong> or N\/mm\u00b2<\/strong>. \uc774\ub294 \ubcfc\ud2b8, \ub9ac\ubcb3, \ud540, \uc6a9\uc811\ubd80, \uc5f0\uacb0\ud310 \ub4f1 \uc804\ub2e8 \ud558\uc911\uc744 \ubc1b\ub294 \ubd80\uc7ac\uc758 \ub0b4\ud558\ub825\uc744 \ud3c9\uac00\ud558\ub294 \ub370 \uc911\uc694\ud55c \uc9c0\ud45c\uc785\ub2c8\ub2e4.<\/p>\n\n\n\n

\"\"<\/figure>\n\n\n\n

\uac15\uc7ac\uc758 \uc804\ub2e8 \uac15\ub3c4\uc5d0 \uc601\ud5a5\uc744 \ubbf8\uce58\ub294 \uc694\uc778:<\/strong><\/strong><\/p>\n\n\n\n

\ud0c4\uc18c \ud568\ub7c9\uc744 \ub192\uc774\uba74 \uc804\ub2e8 \ud30c\uad34\uc5d0 \ub300\ud55c \uc800\ud56d \ub2a5\ub825\uc744 \uac04\uc811\uc801\uc73c\ub85c \ud5a5\uc0c1\uc2dc\ud0ac \uc218 \uc788\uc73c\uba70;<\/p>\n\n\n\n

\ub9dd\uac04, \ud06c\ub86c, \ubab0\ub9ac\ube0c\ub374\uacfc \uac19\uc740 \ud569\uae08 \uc6d0\uc18c\ub294 \uc6a9\uccb4 \uac15\ud654, \uacb0\uc815\ub9bd \ubbf8\uc138\ud654 \ubc0f \ubbf8\uc138\uad6c\uc870 \uc548\uc815\uc131 \ud5a5\uc0c1\uc744 \ud1b5\ud574 \uc804\ub2e8 \uc800\ud56d\uc131\uc744 \ub192\uc77c \uc218 \uc788\ub2e4.<\/p>\n\n\n\n

\uadf8\ub7ec\ub098 \uc778\uc774\ub098 \ud669\uacfc \uac19\uc740 \uc720\ud574 \ubd88\uc21c\ubb3c\uc740 \ucde8\uc131 \ub0b4\ud3ec\ubb3c\uc744 \uc27d\uac8c \ud615\uc131\ud558\uac70\ub098 \uacb0\uc815\uacc4\uba74 \uacb0\ud569\uc744 \uc57d\ud654\uc2dc\ucf1c, \uac15\uc7ac\uac00 \uc804\ub2e8 \ud558\uc911\uc744 \ubc1b\uc744 \ub54c \uade0\uc5f4\uc774\ub098 \ucde8\uc131 \ud30c\uc190\uc774 \ubc1c\uc0dd\ud558\uae30 \uc27d\uac8c \ub9cc\ub4e4\uace0, \uc804\ub2e8 \uac15\ub3c4\uc640 \uc778\uc131\uc744 \uc800\ud558\uc2dc\ud0b5\ub2c8\ub2e4.<\/p>\n\n\n\n

\uac15\ucca0\uc758 \ub0b4\uad6c \uac15\ub3c4<\/strong><\/strong><\/h3>\n\n\n\n

\u201c\ub0b4\uad6c\uc131 \uac15\ub3c4\u201d\ub294 \ud45c\uc900\uc801\uc778 \ub3c5\ub9bd\uc801 \uae30\uacc4\uc801 \ud2b9\uc131\uc774 \uc544\ub2d9\ub2c8\ub2e4. \uc774\ub294 \ud06c\ub9ac\ud504 \ud30c\ub2e8 \uac15\ub3c4\uc640 \ud53c\ub85c \uac15\ub3c4\uc5d0 \uc758\ud574 \uacb0\uc815\ub418\uba70, \uc774 \ub450 \uac00\uc9c0\uac00 \uacb0\ud569\ub418\uc5b4 \uc7a5\uae30 \uc0ac\uc6a9 \uc870\uac74 \ud558\uc5d0\uc11c \uac15\uc7ac\uc758 \uc548\uc804\ud55c \uc0ac\uc6a9 \uc218\uba85\uc744 \uc815\uc758\ud569\ub2c8\ub2e4. \uc774\ub294 \ub2e8\uc77c\ud55c \uace0\uc815\ub41c \uac12\uc774 \uc544\ub2c8\uae30 \ub54c\ubb38\uc5d0, \uc77c\ubc18\uc801\uc73c\ub85c \ud06c\ub9ac\ud504 \ud30c\ub2e8 \uc751\ub825\uc774\ub098 \ud53c\ub85c \uac15\ub3c4\ub97c \ud1b5\ud574 \ud3c9\uac00\ub418\uba70, \ubcf4\ud1b5 \ub2e4\uc74c\uacfc \uac19\uc774 \ud45c\ud604\ub429\ub2c8\ub2e4. \u03c3 = F \/ A0<\/strong> \ub610\ub294 \uc751\ub825 \uc9c4\ud3ed \u03c3a = (\u03c3max \u2013 \u03c3min) \/ 2<\/strong>, \ub2e8\uc704\ub294 MPa<\/strong> or N\/mm\u00b2<\/strong>.<\/p>\n\n\n\n

\ud06c\ub9ac\ud504 \ud30c\ub2e8 \uac15\ub3c4:<\/strong><\/strong><\/h4>\n\n\n\n

\uc774\ub294 \uc8fc\uc5b4\uc9c4 \uace0\uc628 \uc870\uac74\uacfc \uc77c\uc815\ud55c \uc778\uc7a5 \uc751\ub825 \ud558\uc5d0\uc11c, \uc77c\ubc18\uc801\uc73c\ub85c 100,000\uc2dc\uac04(\uc57d 11.4\ub144)\uc774\ub77c\ub294 \uc9c0\uc815\ub41c \uae30\uac04 \ub3d9\uc548 \uac15\uc7ac\uac00 \ud30c\ub2e8\ub418\uc9c0 \uc54a\uace0 \uacac\ub51c \uc218 \uc788\ub294 \ucd5c\ub300 \uc751\ub825 \uac12\uc744 \uc758\ubbf8\ud569\ub2c8\ub2e4. \uc774\ub294 \uc8fc\ub85c \uc7ac\ub8cc\uc758 \ud06c\ub9ac\ud504 \ud30c\ub2e8\uc5d0 \ub300\ud55c \uc800\ud56d\uc131\uc744 \ub098\ud0c0\ub0c5\ub2c8\ub2e4.<\/p>\n\n\n\n

\uac15\ucca0\uc758 \ud06c\ub9ac\ud504 \ud30c\ub2e8 \uac15\ub3c4\uc5d0 \uc601\ud5a5\uc744 \ubbf8\uce58\ub294 \uc694\uc778:<\/strong><\/strong><\/p>\n\n\n\n

\ud06c\ub86c, \ubab0\ub9ac\ube0c\ub374, \ubc14\ub098\ub4d0, \ub2c8\uc624\ube00, \ud145\uc2a4\ud150\uacfc \uac19\uc740 \uc6d0\uc18c\ub4e4\uc740 \uc6a9\uccb4 \uac15\ud654, \uc11d\ucd9c \uac15\ud654, \uadf8\ub9ac\uace0 \uc548\uc815\ub41c \ud0c4\ud654\ubb3c\uc774\ub098 \uc9c8\ud654\ubb3c\uc758 \ud615\uc131\uc744 \ud1b5\ud574 \uace0\uc628\uc5d0\uc11c \uac15\ucca0\uc758 \ubbf8\uc138\uad6c\uc870 \uc548\uc815\uc131\uacfc \ud06c\ub9ac\ud504 \uc800\ud56d\uc131\uc744 \ud5a5\uc0c1\uc2dc\ud0ac \uc218 \uc788\uc2b5\ub2c8\ub2e4. \ubc18\uba74, \uc778\uc774\ub098 \ud669\uacfc \uac19\uc740 \ubd88\uc21c\ubb3c \ud568\uc720\ubb3c\uc740 \uace0\uc628\uc5d0\uc11c \uc27d\uac8c \uade0\uc5f4\uc758 \uc6d0\uc778\uc774 \ub418\uc5b4 \ud06c\ub9ac\ud504 \ud30c\ub2e8 \uac15\ub3c4\ub97c \uc800\ud558\uc2dc\ud0ac \uc218 \uc788\ub2e4.<\/p>\n\n\n\n

\uac15\ucca0\uc758 \ud53c\ub85c \uac15\ub3c4<\/strong><\/strong><\/h4>\n\n\n\n

\uc774\ub294 \uac15\uc7ac\uac00 \ud30c\ub2e8\ub418\uc9c0 \uc54a\uace0 \ubb34\ud55c\ud55c \ud69f\uc218(\uc77c\ubc18\uc801\uc73c\ub85c 10^7\ud68c)\uc758 \uc8fc\uae30\uc801 \uad50\ub300 \uc751\ub825\uc744 \uacac\ub51c \uc218 \uc788\ub294 \ucd5c\ub300 \uc751\ub825 \uac12\uc744 \uc758\ubbf8\ud569\ub2c8\ub2e4. \uba85\ud655\ud55c \ud53c\ub85c \ud55c\uacc4\uac00 \uc5c6\ub294 \uc7ac\ub8cc\uc758 \uacbd\uc6b0, \uc774\ub294 10^7\ud68c\uc640 \uac19\uc740 \uc9c0\uc815\ub41c \ud69f\uc218\uc758 \uc8fc\uae30 \ub3d9\uc548 \ud30c\ub2e8\uc774 \ubc1c\uc0dd\ud558\uc9c0 \uc54a\ub294 \uc751\ub825\uc744 \uc758\ubbf8\ud569\ub2c8\ub2e4.<\/p>\n\n\n\n

\uc601\ud5a5\uc744 \ubbf8\uce58\ub294 \uc694\uc778:<\/p>\n\n\n\n

\ud0c4\uc18c\uc640 Mn, Cr, Mo, V\uc640 \uac19\uc740 \ud569\uae08 \uc6d0\uc18c\ub294 \uc6a9\uccb4 \uac15\ud654 \ubc0f \ubbf8\uc138 \uacb0\uc815\ub9bd \uac15\ud654\uc640 \uac19\uc740 \uae30\uc804\uc744 \ud1b5\ud574 \ud53c\ub85c \uac15\ub3c4\ub97c \ud5a5\uc0c1\uc2dc\ud0ac \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uadf8\ub7ec\ub098 \uc0b0\ud654\ubb3c\uc774\ub098 \ud669\ud654\ubb3c\uacfc \uac19\uc740 \ube44\uae08\uc18d \ud568\uc720\ubb3c\uc740 \ub0b4\ubd80 \uc751\ub825 \uc9d1\uc911\uc6d0\uc744 \ud615\uc131\ud558\uc5ec \ud53c\ub85c \uade0\uc5f4 \ubc1c\uc0dd\uc744 \ucd09\uc9c4\ud560 \uc218 \uc788\uc73c\ubbc0\ub85c, \ud53c\ub85c \uc131\ub2a5\uc744 \ud5a5\uc0c1\uc2dc\ud0a4\uae30 \uc704\ud574\uc11c\ub294 \uace0\uc21c\ub3c4 \uac15\uc7ac\ub97c \uc0ac\uc6a9\ud558\ub294 \uac83\uc774 \ub354 \uc720\ub9ac\ud569\ub2c8\ub2e4.<\/p>\n\n\n\n

\"\"<\/figure>\n\n\n\n

\uac15\ucca0\uc758 \ud30c\ub2e8 \uac15\ub3c4<\/strong><\/strong><\/h3>\n\n\n\n

\ud30c\ub2e8 \uac15\ub3c4\ub780 \uc778\uc7a5 \uc2dc\ud5d8 \uc911 \ud30c\ub2e8\uc774 \ubc1c\uc0dd\ud558\ub294 \uc21c\uac04\uc5d0 \ud574\ub2f9\ud558\ub294 \uc751\ub825 \uac12\uc744 \ub9d0\ud558\uba70, \uc7ac\ub8cc\uac00 \ucd5c\uc885\uc801\uc73c\ub85c \ud30c\ub2e8\ub418\uae30 \uc804\uae4c\uc9c0 \uacac\ub51c \uc218 \uc788\ub294 \ucd5c\ub300 \ud558\uc911 \uc6a9\ub7c9\uc744 \ub098\ud0c0\ub0c5\ub2c8\ub2e4. \uc774\ub294 \uc2dc\ud3b8\uc774 \uc2e4\uc81c\ub85c \ud30c\ub2e8\ub418\ub294 \uc751\ub825\uc785\ub2c8\ub2e4. \uc800\ud0c4\uc18c\uac15\uacfc \uac19\uc740 \uc5f0\uc131 \uac15\uc7ac\uc758 \uacbd\uc6b0, \ud30c\ub2e8 \uc804\uc5d0 \ubaa9 \ud604\uc0c1\uc774 \ubc1c\uc0dd\ud558\ubbc0\ub85c \uacf5\ud559\uc801 \ud30c\ub2e8 \uac15\ub3c4\ub294 \uc77c\ubc18\uc801\uc73c\ub85c \uc778\uc7a5 \uac15\ub3c4\ubcf4\ub2e4 \ub0ae\uc2b5\ub2c8\ub2e4. \ubc18\uba74, \ub354 \ucde8\uc131\uc778 \uac15\uc7ac\uc758 \uacbd\uc6b0 \ud30c\ub2e8 \uac15\ub3c4\ub294 \uc778\uc7a5 \uac15\ub3c4\uc640 \ube44\uad50\uc801 \uadfc\uc811\ud55c \uacbd\uc6b0\uac00 \ub9ce\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n

\uc601\ud5a5\uc744 \ubbf8\uce58\ub294 \uc694\uc778:<\/strong><\/strong><\/p>\n\n\n\n

\ud0c4\uc18c \ud568\ub7c9\uc774 \uc99d\uac00\ud558\uba74 \uc77c\ubc18\uc801\uc73c\ub85c \uac15\ub3c4\ub294 \ud5a5\uc0c1\ub418\uc9c0\ub9cc, \uc5f0\uc131\uacfc \uc778\uc131\uc740 \uc800\ud558\ub429\ub2c8\ub2e4. \ub9dd\uac04\uc774\ub098 \ub2c8\ucf08\uacfc \uac19\uc740 \ud569\uae08 \uc6d0\uc18c\ub294 \uc778\uc131\uc744 \ud5a5\uc0c1\uc2dc\ud0a4\ub294 \ub370 \ub3c4\uc6c0\uc774 \ub418\ub294 \ubc18\uba74, \uc778, \ud669, \uadf8\ub9ac\uace0 \uc0b0\ud654\ubb3c\uc774\ub098 \ud669\ud654\ubb3c\uacfc \uac19\uc740 \ube44\uae08\uc18d \ud568\uc720\ubb3c\uc740 \uc27d\uac8c \uacb0\uc815\uacc4 \ubd84\ub9ac\ub97c \uc720\ubc1c\ud558\uac70\ub098 \uade0\uc5f4 \ubc1c\uc0dd\uc6d0\uc744 \ud615\uc131\ud558\uc5ec \ud30c\ub2e8 \uc800\ud56d\uc131\uc744 \ud604\uc800\ud788 \uc57d\ud654\uc2dc\ud0ac \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n

\uac15\uc7ac\uc758 \uc555\ucd95 \uac15\ub3c4<\/strong><\/strong><\/h3>\n\n\n\n
\"\"<\/figure>\n\n\n\n

\uc555\ucd95 \uac15\ub3c4\ub780 \uac15\uc7ac\uac00 \ud30c\ub2e8, \uc88c\uad74 \ub610\ub294 \uacfc\ub3c4\ud55c \uc18c\uc131 \ubcc0\ud615\uc774 \ubc1c\uc0dd\ud558\uae30 \uc804\uae4c\uc9c0 \uc555\ucd95 \ud558\uc911\uc744 \ubc1b\uc544 \uacac\ub51c \uc218 \uc788\ub294 \ucd5c\ub300 \uc751\ub825\uc744 \ub9d0\ud569\ub2c8\ub2e4. \uc774\ub294 \uc77c\ubc18\uc801\uc73c\ub85c \ub2e4\uc74c\uacfc \uac19\uc774 \uacc4\uc0b0\ub429\ub2c8\ub2e4. \u03c3c = Fmax \/ A0<\/strong>, \uc5ec\uae30\uc11c Fmax<\/strong> \ub294 \ucd5c\ub300 \uc555\ucd95 \ud558\uc911\uc774\uba70, A0<\/strong> \ub294 \uc6d0\ub798\uc758 \ub2e8\uba74\uc801\uc774\uba70, \ub2e8\uc704\ub294 MPa<\/strong> or N\/mm\u00b2<\/strong>. \uac15\ucca0\uacfc \uac19\uc740 \uc5f0\uc131 \uc7ac\ub8cc\uc758 \uacbd\uc6b0, \uc77c\ubc18\uc801\uc73c\ub85c \uac11\uc791\uc2a4\ub7ec\uc6b4 \ud30c\ub2e8\ubcf4\ub2e4\ub294 \uc18c\uc131 \ubcc0\ud615\uc774\ub098 \ubd80\ud480\uc5b4 \uc624\ub984\uc744 \uc77c\uc73c\ud0a4\uba70, \uadf8 \uc555\ucd95 \uac15\ub3c4\ub294 \ub300\uac1c \uc778\uc7a5 \uac15\ub3c4\uc640 \ube44\uc2b7\ud558\uac70\ub098 \uc57d\uac04 \ub354 \ub192\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n

\uc601\ud5a5\uc744 \ubbf8\uce58\ub294 \uc694\uc778:<\/strong><\/strong><\/p>\n\n\n\n

\ud0c4\uc18c \ud568\ub7c9\uc744 \ub192\uc774\uba74 \uac15\ucca0\uc758 \uc555\ucd95 \uac15\ub3c4\ub294 \ud5a5\uc0c1\ub420 \uc218 \uc788\uc9c0\ub9cc, \uc5f0\uc131\uacfc \uc778\uc131\uc740 \uc800\ud558\ub429\ub2c8\ub2e4. \ub9dd\uac04, \uaddc\uc18c, \ud06c\ub86c, \ubab0\ub9ac\ube0c\ub374\uacfc \uac19\uc740 \ud569\uae08 \uc6d0\uc18c\ub294 \uc6a9\uccb4 \uac15\ud654\ub098 \ud0c4\ud654\ubb3c \ud615\uc131\uc744 \ud1b5\ud574 \uae30\uc9c8\uc744 \uac15\ud654\ud560 \uc218 \uc788\ub294 \ubc18\uba74, \uc778\uc774\ub098 \ud669\uacfc \uac19\uc740 \ubd88\uc21c\ubb3c \ubc0f \ub0b4\ud3ec\ubb3c\uc740 \uc7ac\ub8cc\uc758 \uc5f0\uc18d\uc131\uc744 \ud574\uce58\uace0 \uc555\ucd95 \uac15\ub3c4\ub97c \uc57d\ud654\uc2dc\ud0ac \uc218 \uc788\ub2e4.<\/p>\n\n\n\n

\uc694\uc57d \ube44\uad50\ud45c<\/p>\n\n\n\n

\ub9e4\uac1c\ubcc0\uc218 \uc774\ub984<\/strong><\/strong><\/td>\ud575\uc2ec \uc815\uc758<\/strong><\/strong><\/td>\uc8fc\uc694 \uacf5\ud559\uc801 \uc758\uc758<\/strong><\/strong><\/td><\/tr>
\ud56d\ubcf5 \uac15\ub3c4<\/td>\uc18c\uc131 \ubcc0\ud615\uc774 \uc2dc\uc791\ub418\ub294 \uc784\uacc4 \uc751\ub825<\/td>\uc601\uad6c\uc801\uc778 \uad6c\uc870\uc801 \ubcc0\ud615\uc744 \ubc29\uc9c0\ud558\uae30 \uc704\ud55c \uc124\uacc4 \uae30\uc900<\/td><\/tr>
\uc778\uc7a5 \uac15\ub3c4<\/td>\uc778\uc7a5 \ud30c\ub2e8 \uc804\uc758 \ucd5c\ub300 \uc751\ub825<\/td>\uc7ac\ub8cc\uc758 \ucd5c\ub300 \ud558\uc911 \uc9c0\uc9c0 \ub2a5\ub825 \ubc0f \uc548\uc804 \uc5ec\ub825<\/td><\/tr>
\uc804\ub2e8 \uac15\ub3c4<\/td>\uc804\ub2e8 \ubbf8\ub044\ub7ec\uc9d0 \ud30c\uad34\ub97c \uacac\ub514\ub294 \ucd5c\ub300 \uc804\ub2e8 \uc751\ub825<\/td>\ucee4\ub125\ud130 \ubc0f \uc804\ub2e8 \uc800\ud56d \ubd80\ud488\uc758 \uc124\uacc4 \uae30\uc900<\/td><\/tr>
\uc9c0\uad6c\ub825 \ubc0f \uadfc\ub825<\/td>\uc8fc\uae30\uc801 \ud558\uc911 \ud558\uc5d0\uc11c \ud30c\uc190\uc744 \uacac\ub51c \uc218 \uc788\ub294 \ub2a5\ub825 (\uc77c\ubc18\uc801\uc73c\ub85c \ud53c\ub85c \uac15\ub3c4\ub97c \uc758\ubbf8\ud568)<\/td>\uc9c4\ub3d9 \ubc0f \uad50\ubc88 \ud558\uc911\uc744 \ubc1b\ub294 \ubd80\ud488\uc758 \uc218\uba85 \uc124\uacc4<\/td><\/tr>
\ud30c\ub2e8 \uac15\ub3c4<\/td>\uade0\uc5f4 \uc804\ud30c\uc5d0 \uc800\ud56d\ud558\ub294 \ub2a5\ub825 (\uc77c\ubc18\uc801\uc73c\ub85c \ud30c\uad34 \uc778\uc131\uc744 \uc758\ubbf8\ud568)<\/td>\uacb0\ud568\uc774 \uc788\ub294 \uad6c\uc870\ubb3c\uc758 \ucde8\uc131 \ud30c\ub2e8\uc5d0 \ub300\ud55c \uc548\uc804\uc131 \ud3c9\uac00<\/td><\/tr>
\uc555\ucd95 \uac15\ub3c4<\/td>\uc555\ucd95 \ud558\uc911 \ud558\uc5d0\uc11c \ud30c\ub2e8 \uc804\uc758 \ucd5c\ub300 \uc555\ucd95 \uc751\ub825<\/td>\uae30\ub465 \ubc0f \uae30\ucd08\uc640 \uac19\uc740 \uc555\ucd95 \ubd80\uc7ac\uc758 \uc124\uacc4 \uae30\uc900<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

\uac00\uacf5\uc5d0 \uc8fc\ub85c \uc0ac\uc6a9\ub418\ub294 \uac15\uc7ac \uc885\ub958<\/strong><\/strong><\/h2>\n\n\n\n

\uad6c\uc870\uc6a9 \uac15\uc7ac<\/strong><\/strong><\/h3>\n\n\n\n

\uad6c\uc870\uc6a9 \uac15\uc7ac\ub294 \ucca0\uacfc \ud0c4\uc18c\ub97c \uc8fc\uc131\ubd84\uc73c\ub85c \ud558\uba70, \uaddc\uc815\ub41c \uac15\ub3c4, \uc5f0\uc131 \ubc0f \uc131\ud615\uc131\uc744 \uac16\ucd98 \uacf5\ud559\uc6a9 \uac15\uc7ac\uc785\ub2c8\ub2e4. \uc8fc\ub85c \ud558\uc911\uc744 \uc9c0\ud0f1\ud558\ub294 \uac74\ucd95 \ubd80\uc7ac, \uae30\uacc4 \ubd80\ud488 \ubc0f \uacf5\ud559 \uad6c\uc870 \ubd80\ud488\uc5d0 \uc0ac\uc6a9\ub429\ub2c8\ub2e4. \uc774 \uac15\uc7ac\uc758 \ud575\uc2ec \uc694\uad6c \uc0ac\ud56d\uc740 \uc6b0\uc218\ud55c \ud558\uc911 \uc9c0\uc9c0 \ub2a5\ub825\uc744 \uac16\ucd94\ub294 \ub3d9\uc2dc\uc5d0 \uc778\uc131, \uc6a9\uc811\uc131 \ubc0f \uac00\uacf5\uc131\ub3c4 \uace0\ub824\ud574\uc57c \ud55c\ub2e4\ub294 \uc810\uc785\ub2c8\ub2e4. \uc77c\ubc18\uc801\uc73c\ub85c \ud0c4\uc18c \uad6c\uc870\uc6a9 \uac15\uc7ac\uc640 \ud569\uae08 \uad6c\uc870\uc6a9 \uac15\uc7ac\ub85c \uad6c\ubd84\ub429\ub2c8\ub2e4.<\/p>\n\n\n\n

A36 \uac15\uc7ac<\/strong><\/strong><\/p>\n\n\n\n

\uc758 \ud56d\ubcf5 \uac15\ub3c4\ub294 A36 \uac15\uc7ac <\/a>\uc740 \u2265250 MPa\uc785\ub2c8\ub2e4. A36 \uac15\ud310\uc758 \ub450\uaed8\uac00 203 mm\ub97c \ucd08\uacfc\ud560 \uacbd\uc6b0, \uc694\uad6c\ub418\ub294 \ud56d\ubcf5 \uac15\ub3c4\ub294 \u2265220 MPa\uc785\ub2c8\ub2e4. \uc774\ub294 \uc77c\ubc18 \uac15\ub3c4 \uad6c\uc870\uc6a9 \uac15\uc7ac\uc5d0 \uc18d\ud569\ub2c8\ub2e4. \uace0\uac15\ub3c4, \uace0\uc555, \uace0\uc628, \uace0\ud558\uc911 \ub610\ub294 \uc800\uc628\uc758 \uc911\uc694\ud55c \ud558\uc911 \uc9c0\uc9c0 \ubd80\uc704\uc758 \uacbd\uc6b0, A572 \ubc0f A588\uacfc \uac19\uc740 \uac15\uc7ac\ub97c \uace0\ub824\ud574\uc57c \ud569\ub2c8\ub2e4.<\/p>\n\n\n\n

A36 \uac15\uc7ac\uc758 \uc778\uc7a5 \uac15\ub3c4\ub294 400~550 MPa\ub85c, \uc77c\ubc18 \uac74\ucd95 \uad6c\uc870\ubb3c, \ube0c\ub798\ud0b7, \ubca0\uc774\uc2a4 \ud50c\ub808\uc774\ud2b8, \uc5f0\uacb0\ubd80\uc7ac \ubc0f \uc77c\ubc18 \uae30\uacc4 \uad6c\uc870 \ubd80\ud488\uc758 \ud558\uc911 \uc9c0\uc9c0 \uc694\uad6c \uc0ac\ud56d\uc744 \ucda9\uc871\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n

A36 \uac15\uc7ac\uc758 \uc804\ub2e8 \uac15\ub3c4\uc5d0 \ub300\ud574 \uc9c1\uc811\uc801\uc73c\ub85c \uaddc\uc815\ub41c \ud45c\uc900\uac12\uc740 \uc5c6\uc2b5\ub2c8\ub2e4. \uacf5\ud559 \uc2e4\ubb34\uc5d0\uc11c\ub294 \uc77c\ubc18\uc801\uc73c\ub85c \uc778\uc7a5 \uac15\ub3c4\uc758 0.6\ubc30, \uc989 \uc57d 240~330 MPa\ub85c \ucd94\uc815\ud569\ub2c8\ub2e4.<\/p>\n\n\n\n

A992 \uac15\uc7ac<\/strong><\/strong><\/p>\n\n\n\n

A992 \uac15\uc7ac\uc758 \ud56d\ubcf5 \uac15\ub3c4\ub294 345 MPa \uc774\uc0c1\uc73c\ub85c, \uc911~\uace0\uac15\ub3c4 \uad6c\uc870\uc6a9 \uac15\uc7ac\uc5d0 \ud574\ub2f9\ud569\ub2c8\ub2e4. A36\uc5d0 \ube44\ud574 A992\ub294 \ub354 \ub192\uc740 \ud558\uc911 \uc9c0\uc9c0 \ub2a5\ub825\uc744 \uac16\ucd94\uace0 \uc788\uc73c\uba70 \uac15\ub3c4\uc640 \uc778\uc131\uc758 \uade0\ud615\uc774 \ub354 \uc6b0\uc218\ud558\ubbc0\ub85c, \uac74\ucd95\uc6a9 \ubcf4, \uac15\ucca0 \uae30\ub465, \uad50\ub7c9 \uad6c\uc870\ubb3c, \uc911\ub7c9\ubb3c\uc6a9 \ud504\ub808\uc784 \ub4f1 \ud558\uc911\uc744 \uc9c0\ud0f1\ud558\ub294 \ubd80\uc7ac\uc5d0 \ub110\ub9ac \uc0ac\uc6a9\ub429\ub2c8\ub2e4.<\/p>\n\n\n\n

A992 \uac15\uc7ac\uc758 \uc778\uc7a5 \uac15\ub3c4\ub294 \uc77c\ubc18\uc801\uc73c\ub85c 450~620 MPa\uc785\ub2c8\ub2e4. \uc774 \uac15\uc7ac\ub294 \uc778\uc7a5, \uc555\ucd95 \ubc0f \uad7d\ud798 \ud558\uc911 \ud558\uc5d0\uc11c \uc6b0\uc218\ud55c \ubcc0\ud615 \uc800\ud56d\uc131\uc744 \ubcf4\uc785\ub2c8\ub2e4. A992 \uac15\uc7ac\ub294 \uac15\ub3c4, \uc6a9\uc811\uc131 \ubc0f \uad6c\uc870\uc801 \uc548\uc815\uc131\uc774 \uc694\uad6c\ub418\ub294 \uac74\ucd95 \ubc0f \uc5d4\uc9c0\ub2c8\uc5b4\ub9c1 \ucca0\uace8 \uad6c\uc870\ubb3c\uc5d0 \ub110\ub9ac \uc0ac\uc6a9\ub429\ub2c8\ub2e4.<\/p>\n\n\n\n

\"a992<\/figure>\n\n\n\n

\ud0c4\uc18c\uac15<\/strong><\/strong><\/h3>\n\n\n\n

\ud0c4\uc18c\uac15\uc740 \ub2e4\ub978 \ud569\uae08 \uc6d0\uc18c\ub97c \uc758\ub3c4\uc801\uc73c\ub85c \ucca8\uac00\ud558\uc9c0 \uc54a\uace0 \uc8fc\ub85c \ucca0\uacfc \ud0c4\uc18c\ub85c \uad6c\uc131\ub41c \ucca0-\ud0c4\uc18c \ud569\uae08\uc785\ub2c8\ub2e4. \ud0c4\uc18c \ud568\ub7c9\uc740 \uc77c\ubc18\uc801\uc73c\ub85c 0.02%\uc5d0\uc11c 2.11% \uc0ac\uc774\uc785\ub2c8\ub2e4. \ud0c4\uc18c \ud568\ub7c9\uacfc \uc5f4\ucc98\ub9ac \uacf5\uc815\uc744 \ud1b5\ud574 \uc7ac\ub8cc \ud2b9\uc131\uc744 \uc870\uc808\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \ud0c4\uc18c\uac15\uc740 \uc800\ud0c4\uc18c\uac15, \uc911\ud0c4\uc18c\uac15, \uace0\ud0c4\uc18c\uac15\uc758 \uc138 \uac00\uc9c0 \ubc94\uc8fc\ub85c \ub098\ub269\ub2c8\ub2e4.<\/p>\n\n\n\n

1018\uac15<\/strong><\/strong><\/p>\n\n\n\n

1018 \uc5f0\uac15\uc758 \ud56d\ubcf5 \uac15\ub3c4\ub294 210 MPa \uc774\uc0c1(\uc57d 30 ksi)\uc774\uba70, \uc2e4\uc81c \ubc94\uc704\ub294 \uc57d 210~275 MPa\uc785\ub2c8\ub2e4. \ub0c9\uac04 \uc778\ubc1c \uc0c1\ud0dc(C1018)\uc5d0\uc11c\ub294 \ud56d\ubcf5 \uac15\ub3c4\uac00 370 MPa(\uc57d 53 ksi) \uc774\uc0c1\uc73c\ub85c \uc99d\uac00\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \ub2f4\uae08\uc9c8 \ubc0f \ud15c\ud37c\ub9c1\uacfc \uac19\uc740 \uc5f4\ucc98\ub9ac\ub97c \uac70\uce58\uba74 \uac15\ub3c4\ub97c \ub354\uc6b1 \ud5a5\uc0c1\uc2dc\ud0ac \uc218 \uc788\uc9c0\ub9cc, \uc774 \uacbd\uc6b0 \uc77c\ubc18\uc801\uc73c\ub85c \uc5f0\uc131\uacfc \uc131\ud615\uc131\uc774 \ub2e4\uc18c \uc800\ud558\ub429\ub2c8\ub2e4. 1018\uac15\uc740 \ub192\uc740 \uac15\ub3c4\ubcf4\ub2e4\ub294 \uc6b0\uc218\ud55c \uc6a9\uc811\uc131, \ub0c9\uac04 \uc131\ud615\uc131 \ubc0f \uac00\uacf5\uc131\uc744 \uc81c\uacf5\ud558\uba70, \ucd95, \ud540, \ubcfc\ud2b8 \ubc0f \uae30\uc5b4 \ube14\ub7ad\ud06c\uc640 \uac19\uc740 \uc77c\ubc18 \uae30\uacc4 \ubd80\ud488\uc5d0 \uc801\ud569\ud569\ub2c8\ub2e4.<\/p>\n\n\n\n

1018 \uc5f0\uac15\uc758 \uc778\uc7a5 \uac15\ub3c4\ub294 \uc57d 370~440 MPa\uc785\ub2c8\ub2e4. \ub0c9\uac04 \uc778\ubc1c \uc0c1\ud0dc\uc5d0\uc11c\ub294 \uac00\uacf5 \uacbd\ud654 \ud604\uc0c1\uc73c\ub85c \uc778\ud574 \uc778\uc7a5 \uac15\ub3c4\uac00 440~540 MPa \uc774\uc0c1\uc73c\ub85c \uc99d\uac00\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n

1045\uac15<\/strong><\/strong><\/p>\n\n\n\n

1045\uac15\uc7ac\uc758 \uc778\uc7a5 \uac15\ub3c4\ub294 \uc57d 570~700 MPa\uc774\uba70, 1045\uac15\uc7ac\uc758 \ud56d\ubcf5 \uac15\ub3c4\ub294 \uc57d 310~530 MPa\uc785\ub2c8\ub2e4.<\/p>\n\n\n\n

, \uc5f4\uac04 \uc555\uc5f0, \ub178\uba40\ub77c\uc774\uc9d5, \ub0c9\uac04 \uc778\ubc1c, \ub610\ub294 \ub2f4\uae08\uc9c8 \ubc0f \ud15c\ud37c\ub9c1\uacfc \uac19\uc740 \uacf5\uc815 \uc870\uac74\uc5d0 \ub530\ub77c \ub2ec\ub77c\uc9d1\ub2c8\ub2e4. 1045\ub294 \uac15\ub3c4, \uacbd\ub3c4 \ubc0f \ub0b4\ub9c8\ubaa8\uc131\uc774 \ube44\uad50\uc801 \ub192\uc740 \uc911\ud0c4\uc18c\uac15\uc785\ub2c8\ub2e4. \uc774 \uac15\uc885\uc740 \uc77c\ubc18\uc801\uc73c\ub85c \ucd95, \uae30\uc5b4, \ucee4\ub125\ud305\ub85c\ub4dc, \ud06c\ub7ad\ud06c\ucd95, \ud540, \ubcfc\ud2b8, \uc2ac\ub9ac\ube0c, \uacf5\uad6c \uace0\uc815\uad6c \ub4f1 \ud558\uc911\uc744 \uc9c0\ud0f1\ud558\uac70\ub098 \ub0b4\ub9c8\ubaa8\uc131\uc774 \uc694\uad6c\ub418\ub294 \uae30\uacc4 \ubd80\ud488\uc5d0 \ub110\ub9ac \uc0ac\uc6a9\ub429\ub2c8\ub2e4. \ub2f4\uae08\uc9c8, \ud15c\ud37c\ub9c1 \ub610\ub294 \ub2f4\uae08\uc9c8-\ud15c\ud37c\ub9c1 \ucc98\ub9ac\ub97c \uac70\uce58\uba74 \uac15\ub3c4, \uc778\uc131 \ubc0f \ub0b4\ub9c8\ubaa8\uc131\uc758 \uc804\ubc18\uc801\uc778 \uade0\ud615\uc774 \ub354\uc6b1 \ud5a5\uc0c1\ub418\uc5b4 \uc911\ud558\uc911 \uad6c\uc870 \ubd80\ud488 \ubc0f \ubcc0\uc18d\uae30 \ubd80\ud488\uc5d0 \uc801\ud569\ud569\ub2c8\ub2e4.<\/p>\n\n\n\n

\"\"<\/figure>\n\n\n\n

\ud569\uae08\uac15<\/strong><\/strong><\/h3>\n\n\n\n

\ud569\uae08\uac15\uc740 \uac15\ub3c4, \uacbd\ub3c4, \uc778\uc131, \ub0b4\ub9c8\ubaa8\uc131, \uacbd\ud654\uc131, \ub0b4\uc2dd\uc131 \ub610\ub294 \uace0\uc628 \uc131\ub2a5\uc744 \ud5a5\uc0c1\uc2dc\ud0a4\uae30 \uc704\ud574 \ud0c4\uc18c\uac15\uc5d0 \ud06c\ub86c, \ub2c8\ucf08, \ubab0\ub9ac\ube0c\ub374, \ubc14\ub098\ub4d0, \ud2f0\ud0c0\ub284, \ub2c8\uc624\ube00, \ud145\uc2a4\ud150, \ubd95\uc18c\uc640 \uac19\uc740 \uc6d0\uc18c\ub97c \uc758\ub3c4\uc801\uc73c\ub85c \ucca8\uac00\ud558\uc5ec \uc81c\uc870\ub429\ub2c8\ub2e4. \uc77c\ubc18\uc801\uc73c\ub85c \uae30\uc5b4, \ucd95, \ucee4\ub125\ud305\ub85c\ub4dc, \uad50\ub7c9, \uc808\uc0ad \uacf5\uad6c, \uae08\ud615, \uc2a4\ud14c\uc778\ub9ac\uc2a4\uac15, \ub0b4\uc5f4\uac15, \ub0b4\ub9c8\ubaa8\uac15\uacfc \uac19\uc740 \uace0\uc131\ub2a5 \ubd80\ud488\uc774\ub098 \uad6c\uc870\uc6a9 \ubd80\uc7ac\uc5d0 \ub110\ub9ac \uc0ac\uc6a9\ub429\ub2c8\ub2e4.<\/p>\n\n\n\n

4140\uac15<\/strong><\/strong><\/p>\n\n\n\n

4140\uac15 <\/a>\uc774 \uac15\uc7ac\ub294 \uc5b4\ub2d0\ub9c1 \ub610\ub294 \uc815\uaddc\ud654 \uc0c1\ud0dc\uc5d0\uc11c \uc57d 415 MPa\uc758 \ud56d\ubcf5 \uac15\ub3c4\ub97c \uac00\uc9c0\uba70, \ub2f4\uae08\uc9c8 \ubc0f \ud15c\ud37c\ub9c1 \ud6c4 930\u20131100 MPa \uc774\uc0c1\uc73c\ub85c \ud5a5\uc0c1\ub420 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc774\ub294 \uc911\ud0c4\uc18c \ud06c\ub86c-\ubab0\ub9ac\ube0c\ub374 \ud569\uae08\uac15 \uacc4\uc5f4\uc5d0 \uc18d\ud558\ub294 \uace0\uac15\ub3c4 \ub2f4\uae08\uc9c8 \ubc0f \ud15c\ud37c\ub9c1 \uac15\uc785\ub2c8\ub2e4. \ub6f0\uc5b4\ub09c \uacbd\ud654\uc131, \ub192\uc740 \uac15\ub3c4, \uadf8\ub9ac\uace0 \uc6b0\uc218\ud55c \uc778\uc131 \uade0\ud615\uc744 \uac16\ucd98 4140\uac15\uc740 \uae30\uc5b4, \ucd95, \ucee4\ub125\ud305\ub85c\ub4dc, \ubcfc\ud2b8, \uad6c\ub3d9\ucd95, \ud06c\ub7ad\ud06c\ucd95, \ub4dc\ub9b4 \ud30c\uc774\ud504 \uc870\uc778\ud2b8, \uace0\uac15\ub3c4 \uac15\ucca0 \ubc84\ud074 \ubd80\ud488 \ubc0f \uae30\ud0c0 \uace0\ud558\uc911 \uae30\uacc4 \ubd80\ud488\uc5d0 \ub110\ub9ac \uc0ac\uc6a9\ub429\ub2c8\ub2e4.<\/p>\n\n\n\n

\uc5b4\ub2d0\ub9c1 \ub610\ub294 \uc815\uaddc\ud654 \ucc98\ub9ac\ub41c 4140 \uac15\uc7ac\uc758 \uc778\uc7a5 \uac15\ub3c4\ub294 \uc77c\ubc18\uc801\uc73c\ub85c \uc57d 655~750 MPa\uc785\ub2c8\ub2e4. \ub2f4\uae08\uc9c8 \ubc0f \ud15c\ud37c\ub9c1 \ud6c4 \uc778\uc7a5 \uac15\ub3c4\ub294 1080~1200 MPa \uc774\uc0c1\uc73c\ub85c \uc99d\uac00\ud560 \uc218 \uc788\uc73c\uba70, \uc774\ub294 \ub192\uc740 \ud558\uc911 \uc9c0\uc9c0 \ub2a5\ub825, \ucda9\uaca9 \ud558\uc911 \ubc0f \ud53c\ub85c \uc751\ub825\uc774 \uc218\ubc18\ub418\ub294 \uc791\ub3d9 \uc870\uac74\uc758 \uc694\uad6c \uc0ac\ud56d\uc744 \ucda9\uc871\ud569\ub2c8\ub2e4.<\/p>\n\n\n\n

\"4140\uac15\uc7ac\"<\/figure>\n\n\n\n

4130\uac15<\/strong><\/strong><\/p>\n\n\n\n

\uc5b4\ub2d0\ub9c1 \ub610\ub294 \uc815\uaddc\ud654 \uc0c1\ud0dc\uc758 4130\uac15\uc740 \uc77c\ubc18\uc801\uc73c\ub85c \uc57d 415 MPa\uc758 \ud56d\ubcf5 \uac15\ub3c4\ub97c \uac00\uc9d1\ub2c8\ub2e4. \ub2f4\uae08\uc9c8 \ubc0f \ud15c\ud37c\ub9c1 \ud6c4 \ud56d\ubcf5 \uac15\ub3c4\ub294 785~930 MPa \uc774\uc0c1\uc73c\ub85c \uc99d\uac00\ud560 \uc218 \uc788\uc5b4, \uc911\ud0c4\uc18c \ud06c\ub86c-\ubab0\ub9ac\ube0c\ub374 \ud569\uae08 \uad6c\uc870\uc6a9 \uac15\uc7ac \uc911\uc5d0\uc11c\ub3c4 \uace0\uac15\ub3c4 \ub4f1\uae09\uc5d0 \uc18d\ud569\ub2c8\ub2e4. \uc0c1\ub300\uc801\uc73c\ub85c \ub192\uc740 \ud56d\ubcf5 \uac15\ub3c4\uc640 \uc6b0\uc218\ud55c \uc778\uc131, \uacbd\ud654\uc131\uc744 \uac16\ucd98 4130\uac15\uc740 \uae30\uc5b4, \ucd95, \ucee4\ub125\ud305\ub85c\ub4dc, \ubcfc\ud2b8, \ud504\ub808\uc784, \ud56d\uacf5\uae30\uc6a9 \ud29c\ube0c \ubc0f \ud53c\ub85c \ud558\uc911\uc744 \ubc1b\ub294 \uae30\uacc4 \ubd80\ud488, \ud2b9\ud788 \uac15\ub3c4, \uc778\uc131 \ubc0f \uacbd\ub7c9 \uc124\uacc4\uc758 \uade0\ud615\uc774 \uc694\uad6c\ub418\ub294 \uad6c\uc870\uc6a9 \ubd80\ud488\uc758 \uc81c\uc870\uc5d0 \uc801\ud569\ud569\ub2c8\ub2e4.<\/p>\n\n\n\n

\uc5b4\ub2d0\ub9c1 \ub610\ub294 \uc815\uaddc\ud654 \ucc98\ub9ac\ub41c 4130 \uac15\uc7ac\uc758 \uc778\uc7a5 \uac15\ub3c4\ub294 \uc77c\ubc18\uc801\uc73c\ub85c \uc57d 590 MPa \ubbf8\ub9cc\uc785\ub2c8\ub2e4. \ub2f4\uae08\uc9c8 \ubc0f \ud15c\ud37c\ub9c1 \ucc98\ub9ac \ud6c4\uc5d0\ub294 \uc778\uc7a5 \uac15\ub3c4\uac00 930~1000 MPa \uc774\uc0c1\uc73c\ub85c \uc99d\uac00\ud560 \uc218 \uc788\uc5b4, \uc778\uc7a5 \uac15\ub3c4, \ub0b4\ud53c\ub85c\uc131 \ubc0f \uad6c\uc870\uc801 \uc2e0\ub8b0\uc131\uc5d0 \ub300\ud55c \uc694\uad6c \uc0ac\ud56d\uc774 \ub192\uc740 \uae30\uacc4 \ubc0f \ud56d\uacf5\uc6b0\uc8fc \uad6c\uc870 \ubd80\ud488\uc5d0 \uc801\ud569\ud569\ub2c8\ub2e4.<\/p>\n\n\n\n

\"\"<\/figure>\n\n\n\n

\uc2a4\ud14c\uc778\ub9ac\uc2a4\uac15<\/strong><\/strong><\/h3>\n\n\n\n

304 \uc2a4\ud14c\uc778\ub9ac\uc2a4\uac15<\/p>\n\n\n\n

\uc6a9\uc561 \ucc98\ub9ac \ub610\ub294 \uc5b4\ub2d0\ub9c1 \ud6c4, 304 \uc2a4\ud14c\uc778\ub9ac\uc2a4\uac15\uc758 \ud56d\ubcf5 \uac15\ub3c4\ub294 205 MPa \uc774\uc0c1\uc774\uba70, \uc778\uc7a5 \uac15\ub3c4\ub294 \uc57d 515~750 MPa\uc785\ub2c8\ub2e4. \ub0c9\uac04 \uc555\uc5f0\uc774\ub098 \ub0c9\uac04 \uc778\ubc1c\uacfc \uac19\uc740 \ub0c9\uac04 \uac00\uacf5\uc744 \uac70\uce58\uba74 \ud56d\ubcf5 \uac15\ub3c4\ub294 515 MPa \uc774\uc0c1\uc73c\ub85c \uc99d\uac00\ud560 \uc218 \uc788\uc73c\uba70, \uc778\uc7a5 \uac15\ub3c4\ub294 800 MPa \uc774\uc0c1\uc5d0 \ub3c4\ub2ec\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. 304\ub294 \uc911\uac04 \uac15\ub3c4, \uc6b0\uc218\ud55c \ub0b4\uc2dd\uc131, \ub192\uc740 \uc5f0\uc131 \ubc0f \ub6f0\uc5b4\ub09c \uc6a9\uc811\uc131\uc744 \uac16\ucd98 \uc624\uc2a4\ud14c\ub098\uc774\ud2b8\uacc4 \uc2a4\ud14c\uc778\ub9ac\uc2a4\uac15\uc785\ub2c8\ub2e4. \uc774 \uc18c\uc7ac\ub294 \ud654\ud559 \ud30c\uc774\ud504\ub77c\uc778, \uc2dd\ud488 \uc7a5\ube44, \uc758\ub8cc \uae30\uae30, \ubcfc\ud2b8 \ubc0f \ub108\ud2b8\uc640 \uac19\uc740 \uccb4\uacb0 \ubd80\ud488, \ud310\uae08 \ubd80\ud488, \uc7a5\uc2dd\uc6a9 \uad6c\uc870 \ubd80\ud488 \ubc0f \uc77c\ubc18 \ub0b4\uc2dd\uc131 \ubd80\ud488\uc5d0 \uc801\ud569\ud569\ub2c8\ub2e4.<\/p>\n\n\n\n

316 \uc2a4\ud14c\uc778\ub9ac\uc2a4\uac15<\/strong><\/strong><\/p>\n\n\n\n

\uc6a9\uc561 \ucc98\ub9ac \ub610\ub294 \uc5b4\ub2d0\ub9c1 \ucc98\ub9ac\ub41c \uc0c1\ud0dc\uc758 316 \uc2a4\ud14c\uc778\ub9ac\uc2a4\uac15\uc758 \ud56d\ubcf5 \uac15\ub3c4\ub294 \uc77c\ubc18\uc801\uc73c\ub85c 205 MPa \uc774\uc0c1\uc73c\ub85c, \uc911~\uc800\uac15\ub3c4 \uc624\uc2a4\ud14c\ub098\uc774\ud2b8\uacc4 \uc2a4\ud14c\uc778\ub9ac\uc2a4\uac15\uc5d0 \uc18d\ud569\ub2c8\ub2e4. \uc774 \uc18c\uc7ac\ub294 \ub0b4\uc2dd\uc131\uc774 \ub6f0\uc5b4\ub098\uace0 \uc6a9\uc811\uc774 \uc6a9\uc774\ud558\uba70 \uc5f0\uc131\uc774 \ub192\uc544 \ud654\ud559 \ud30c\uc774\ud504\ub77c\uc778, \ubc38\ube0c, \ud38c\ud504 \ubcf8\uccb4, \ud50c\ub79c\uc9c0, \ud328\uc2a4\ub108, \uc2dd\ud488 \uc7a5\ube44, \uc758\ub8cc \uae30\uae30 \ubc0f \uc120\ubc15 \ubd80\ud488\uc5d0 \uc801\ud569\ud569\ub2c8\ub2e4. \ub0c9\uac04 \uac00\uacf5 \ud6c4 \ud56d\ubcf5 \uac15\ub3c4\ub294 \u2265515 MPa\uc5d0 \ub2ec\ud560 \uc218 \uc788\uc5b4, \ubcc0\ud615 \uc800\ud56d \uc694\uad6c \uc0ac\ud56d\uc774 \ub354 \ub192\uc740 \ub0b4\uc2dd\uc131 \ubd80\ud488\uc5d0 \uc801\ud569\ud569\ub2c8\ub2e4.<\/p>\n\n\n\n

\uc77c\ubc18\uc801\uc778 \uac15\ucca0 \uac00\uacf5 \uacf5\uc815<\/strong><\/strong><\/h2>\n\n\n\n

1. \uc120\ubc18 \uac00\uacf5<\/a>
<\/strong>\uc120\ubc18 \uac00\uacf5\uc740 \uacf5\uc791\ubb3c\uc774 \ud68c\uc804\ud558\ub294 \ub3d9\uc548 \uc120\ubc18 \uacf5\uad6c\uac00 \uacf5\uc791\ubb3c \ucabd\uc73c\ub85c \uc774\uc1a1\ub418\ub294 \uc808\uc0ad \uacf5\ubc95\uc785\ub2c8\ub2e4. \uc774 \uacf5\ubc95\uc740 \ucd95, \uc6d0\ud310, \uc2ac\ub9ac\ube0c\uc640 \uac19\uc740 \ud68c\uc804\ud615 \uac15\ucca0 \ubd80\ud488\uc758 \uac00\uacf5\uc5d0 \uc801\ud569\ud569\ub2c8\ub2e4. \ub192\uc740 \ud6a8\uc728\uacfc \ub0ae\uc740 \ube44\uc6a9\uc744 \uc790\ub791\ud558\uba70, \ub3d9\ucd95\ub3c4, \uc218\uc9c1\ub3c4 \ubc0f \uc6d0\ud1b5\uba74 \uc815\ubc00\ub3c4\ub97c \ubcf4\uc7a5\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n

2. \ubc00\ub9c1<\/a>
<\/strong>\ubc00\ub9c1 \uac00\uacf5\uc740 \ud68c\uc804\ud558\ub294 \ubc00\ub9c1 \ucee4\ud130\ub97c \uc0ac\uc6a9\ud558\uc5ec \uc7ac\ub8cc\ub97c \uc81c\uac70\ud558\ub294 \uacf5\ubc95\uc73c\ub85c, \ud3c9\uba74, \ud648, \ub2e8\ucc28, \uc724\uacfd \ubc0f \ubcf5\uc7a1\ud55c \ud615\uc0c1\uc758 \uac00\uacf5\uc5d0 \uc801\ud569\ud569\ub2c8\ub2e4. \uc8fc\ub85c \ube0c\ub798\ud0b7, \ubca0\uc774\uc2a4, \uad6c\uc870\uc6a9 \ubd80\ud488 \ubc0f \ubd88\uaddc\uce59\ud55c \ud615\uc0c1\uc758 \uac15\ucca0 \ubd80\ud488 \uac00\uacf5\uc5d0 \ub110\ub9ac \uc0ac\uc6a9\ub429\ub2c8\ub2e4.<\/p>\n\n\n\n

\"\uc2a4\ud14c\uc778\ub9ac\uc2a4
\uc2a4\ud14c\uc778\ub9ac\uc2a4 \uc5d4\uc9c4 \ube14\ub85d\uc744 \uc704\ud55c 5\ucd95 CNC \ubc00\ub9c1<\/figcaption><\/figure>\n\n\n\n

3. \uc2dc\ucd94<\/strong>
<\/strong>\ub4dc\ub9b4\ub9c1\uc740 \uc8fc\ub85c \uac15\ucca0\uc5d0 \uad6c\uba4d\uc744 \uac00\uacf5\ud558\ub294 \ub370 \uc0ac\uc6a9\ub418\uba70, \uc77c\ubc18\uc801\uc73c\ub85c \ucd95 \ubc29\ud5a5\uc73c\ub85c \uc774\uc1a1\ub418\ub294 \ud2b8\uc704\uc2a4\ud2b8 \ub4dc\ub9b4\uc744 \uc0ac\uc6a9\ud569\ub2c8\ub2e4. \uce69 \ubc30\ucd9c, \uc5f4 \ubc29\ucd9c \ubc0f \uacf5\uad6c \uac15\uc131\uc774 \uc81c\ud55c\uc801\uc774\uae30 \ub54c\ubb38\uc5d0, \uae4a\uc740 \uad6c\uba4d\uc774\ub098 \ud070 \uad6c\uba4d\uc758 \uacbd\uc6b0 \uc885\uc885 \ub2e8\uacc4\ubcc4 \ub4dc\ub9b4\ub9c1, \ub9ac\ubc0d \ub610\ub294 \ud6c4\uc18d \uc815\uc0ad \uacf5\uc815\uc774 \ud544\uc694\ud569\ub2c8\ub2e4.<\/p>\n\n\n\n

4. \uc9c0\ub8e8\ud568<\/strong>
<\/strong>\ubcf4\ub9c1 \uac00\uacf5\uc740 \uae30\uc874 \uad6c\uba4d\uc744 \ud655\ub300\ud558\uace0 \uc815\ubc00\ud558\uac8c \ub2e4\ub4ec\uc5b4 \uad6c\uba4d\uc758 \uce58\uc218 \uc815\ubc00\ub3c4\uc640 \ud45c\uba74 \ud488\uc9c8\uc744 \ud5a5\uc0c1\uc2dc\ud0b5\ub2c8\ub2e4. \uc774 \uacf5\uc815\uc740 \ud558\uc6b0\uc9d5, \uae30\uacc4 \ubca0\uc774\uc2a4, \ube0c\ub798\ud0b7 \ub4f1\uc758 \ubd80\ud488\uc5d0 \uc788\ub294 \ub300\ud615 \uad6c\uba4d, \uc815\ubc00 \uad6c\uba4d \ubc0f \ub0b4\ubd80 \uad6c\uba4d \ubd80\uc704\ub97c \uac00\uacf5\ud558\ub294 \ub370 \uc801\ud569\ud569\ub2c8\ub2e4.<\/p>\n\n\n\n

5. \uc5f0\uc0ad<\/strong>
<\/strong>\uc5f0\uc0ad\uc740 \uc5f0\uc0ad \ud720\uc5d0 \ubd80\ucc29\ub41c \uc5f0\ub9c8 \uc785\uc790\ub97c \uc774\uc6a9\ud558\uc5ec \uac15\ucca0 \ubd80\ud488\uc758 \ud45c\uba74\uc744 \ub9c8\uac10\ud568\uc73c\ub85c\uc368, \ub192\uc740 \uce58\uc218 \uc815\ubc00\ub3c4\uc640 \ub0ae\uc740 \ud45c\uba74 \uac70\uce60\uae30\ub97c \ub2ec\uc131\ud558\ub294 \uacf5\uc815\uc785\ub2c8\ub2e4. \uc774 \uacf5\uc815\uc740 \uc77c\ubc18\uc801\uc73c\ub85c \uacbd\ud654\uac15, \ub0b4\uc5f4\uac15, \ubca0\uc5b4\ub9c1, \uacc4\uce21\uae30 \ubc0f \uc815\ubc00 \ubd80\ud488\uc758 \uac00\uacf5\uc5d0 \ub110\ub9ac \uc0ac\uc6a9\ub429\ub2c8\ub2e4.<\/p>\n\n\n\n

6. \ub300\ud328\uc9c8<\/strong>
<\/strong>\ub300\ud328\uae30\ub294 \uacf5\uad6c\uc640 \uacf5\uc791\ubb3c\uc758 \uc9c1\uc120 \uc655\ubcf5 \uc6b4\ub3d9\uc744 \ud1b5\ud574 \ud3c9\uba74\uc774\ub098 \ud648\uc744 \uac00\uacf5\ud569\ub2c8\ub2e4. \uc774 \uc7a5\ube44\ub294 \uad6c\uc870\uac00 \uac04\ub2e8\ud558\uace0 \ub2e4\uc6a9\ub3c4\ub85c \uc0ac\uc6a9\ud560 \uc218 \uc788\uc9c0\ub9cc, \ud6a8\uc728\uc774 \uc0c1\ub300\uc801\uc73c\ub85c \ub0ae\uc544 \ub2e8\ud488, \uc18c\ub7c9 \uc0dd\uc0b0 \ub610\ub294 \ub300\ud615 \uac15\uc7ac\uc758 \ud3c9\uba74 \uac00\uacf5\uc5d0 \uc801\ud569\ud569\ub2c8\ub2e4.<\/p>\n\n\n\n

7. \ube0c\ub85c\uce6d<\/strong>
<\/strong>\ube0c\ub85c\uce6d \uacf5\uc815\uc740 \ub2e4\uce58 \ube0c\ub85c\uce58\ub97c \uc0ac\uc6a9\ud558\uc5ec \ud55c \ubc88\uc758 \uc2a4\ud2b8\ub85c\ud06c\ub85c \uc7ac\ub8cc\ub97c \uc5f0\uc18d\uc801\uc73c\ub85c \uc81c\uac70\ud568\uc73c\ub85c\uc368, \uc6b0\uc218\ud55c \uce58\uc218 \uc815\ubc00\ub3c4\uc640 \ud45c\uba74 \ud488\uc9c8\uc744 \uc2e0\uc18d\ud558\uac8c \ub2ec\uc131\ud569\ub2c8\ub2e4. \uc774 \uacf5\uc815\uc740 \ub0b4\uacf5, \ud0a4\ud648, \ud3c9\uba74 \ubc0f \uc131\ud615 \ud45c\uba74\uc758 \ub300\ub7c9 \uac00\uacf5\uc5d0 \uc801\ud569\ud558\uc9c0\ub9cc, \uacf5\uad6c \ube44\uc6a9\uc774 \uc0c1\ub300\uc801\uc73c\ub85c \ub192\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n

8. \ud1b1\uc9c8<\/strong>
<\/strong>\ud1b1\uc9c8\uc740 \uac15\ucca0\uc758 \ube14\ub7ad\ud0b9, \uc808\ub2e8 \ub610\ub294 \uc2ac\ub86f \uac00\uacf5\uc5d0 \uc0ac\uc6a9\ub418\uba70, \uae30\uacc4 \uac00\uacf5 \uc804\uc758 \uc77c\ubc18\uc801\uc778 \uc804\ucc98\ub9ac \uacf5\uc815\uc785\ub2c8\ub2e4. \uae30\uacc4 \uac00\uacf5 \uc2dc\uc5d0\ub294 \uc7ac\ub8cc\uc758 \uacbd\ub3c4, \ub2e8\uba74 \ub450\uaed8 \ubc0f \uc808\uc0ad \ud6a8\uc728\uc5d0 \ub530\ub77c \uc801\uc808\ud55c \ud1b1\ub0a0\uc758 \uc774\ube68 \ud615\uc0c1\uacfc \ub9e4\uac1c\ubcc0\uc218\ub97c \uc120\ud0dd\ud574\uc57c \ud569\ub2c8\ub2e4.<\/p>\n\n\n\n

9. EDM \ubc0f \uc640\uc774\uc5b4 \uc808\ub2e8<\/strong>
<\/strong>\uc774 \uacf5\uc815\uc740 \ud384\uc2a4 \ubc29\uc804\uc744 \uc774\uc6a9\ud558\uc5ec \uae08\uc18d\uc744 \uc808\ub2e8\ud558\uac70\ub098 \uc81c\uac70\ud558\uba70, \uacbd\ub3c4\uac00 \ub192\uac70\ub098 \uac00\uacf5\uc774 \uc5b4\ub824\uc6b4 \uac15\uc7ac\uc5d0 \uc801\ud569\ud55c \ube44\uc811\ucd09\uc2dd \uac00\uacf5 \ubc29\ubc95\uc785\ub2c8\ub2e4. \ubcf5\uc7a1\ud55c \ud615\uc0c1, \uc815\ubc00 \uae08\ud615 \ubc0f \ud2b9\uc218 \ud615\uc0c1\uc758 \ubd80\ud488\uc744 \uac00\uacf5\ud560 \uc218 \uc788\uc9c0\ub9cc, \ud45c\uba74\uc758 \uc5f4\uc601\ud5a5\ubd80 \ubc0f \ubbf8\uc138 \uade0\uc5f4 \ubc1c\uc0dd \uc704\ud5d8\uc5d0 \uc8fc\uc758\ud574\uc57c \ud569\ub2c8\ub2e4.<\/p>\n\n\n\n

\"\uc640\uc774\uc5b4<\/figure>\n\n\n\n

\ucd08\uace0\uac15\ub3c4 \uac15\ucca0\uc774\ub780 \ubb34\uc5c7\uc778\uac00?<\/strong><\/h2>\n\n\n\n

\ucd08\uace0\uac15\ub3c4 \uac15\ucca0\uc740 \uc77c\ubc18\uc801\uc73c\ub85c \ud56d\ubcf5 \uac15\ub3c4\uac00 1380 MPa \uc774\uc0c1\uc774\uac70\ub098 \uc778\uc7a5 \uac15\ub3c4\uac00 1470 MPa \uc774\uc0c1\uc778 \ud569\uae08\uac15\uc744 \ub9d0\ud569\ub2c8\ub2e4.<\/p>\n\n\n\n

\ucd08\uace0\uac15\ub3c4 \uac15\uc7ac\ub294 \uc870\uc131 \uccb4\uacc4\uc640 \uac15\ud654 \uba54\ucee4\ub2c8\uc998\uc5d0 \ub530\ub77c \ub2e4\uc591\ud55c \uc720\ud615\uc73c\ub85c \ubd84\ub958\ub420 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc77c\ubc18\uc801\uc778 \uc800\ud569\uae08 \ucd08\uace0\uac15\ub3c4 \uac15\uc7ac\ub85c\ub294 AISI 4340, 300M, \uc5d0\uae00\ub9b0\uac15 \ub4f1\uc774 \uc788\uc2b5\ub2c8\ub2e4. \uc774 \uc911 AISI 4340\uc740 \ud56d\uacf5\uae30 \ub79c\ub529 \uae30\uc5b4\ub098 \uc5d4\uc9c4 \uc0e4\ud504\ud2b8\uc640 \uac19\uc740 \uace0\ud558\uc911 \ubd80\ud488\uc5d0 \ub110\ub9ac \uc0ac\uc6a9\ub418\ub294 \ub300\ud45c\uc801\uc778 \uc800\ud569\uae08 \ucd08\uace0\uac15\ub3c4 \uac15\uc7ac\uc785\ub2c8\ub2e4.<\/p>\n\n\n\n

\ub2e4\uc74c\uacfc \uac19\uc740 2\ucc28 \uacbd\ud654\ud615 \ucd08\uace0\uac15\ub3c4 \uac15\uc7ac HY-180<\/a>, AF1410 \ubc0f AerMet 100\uc740 \ub192\uc740 \uac15\ub3c4\uc640 \uc778\uc131, \ub6f0\uc5b4\ub09c \ud53c\ub85c \uc800\ud56d\uc131\uc744 \uac16\ucd94\uace0 \uc788\uc73c\uba70, \uc8fc\ub85c \uc804\ud22c\uae30 \ub79c\ub529 \uae30\uc5b4, \ud56d\uacf5\uae30 \uc5d4\uc9c4 \ubd80\ud488 \ubc0f \ud56d\uacf5\ubaa8\ud568\uc6a9 \ucc29\ub959\uc6a9 \uac08\uace0\ub9ac\uc5d0 \uc0ac\uc6a9\ub429\ub2c8\ub2e4.<\/p>\n\n\n\n

18Ni, T250, T300\uacfc \uac19\uc740 \ub9c8\ub808\uc774\uc9d5 \ucd08\uace0\uac15\ub3c4\uac15\uc740 \uc2dc\ud6a8 \uc11d\ucd9c \uac15\ud654\ub97c \ud1b5\ud574 \ub192\uc740 \uac15\ub3c4\ub97c \uc5bb\uc73c\uba70, \uc8fc\ub85c \ub85c\ucf13 \uc5d4\uc9c4 \ucf00\uc774\uc2f1 \ubc0f \ud56d\uacf5\uc6b0\uc8fc \uad6c\uc870 \ubd80\ud488\uc5d0 \uc0ac\uc6a9\ub429\ub2c8\ub2e4.<\/p>\n\n\n\n

\uc790\ub3d9\ucc28 \ubd84\uc57c\uc5d0\uc11c \uc77c\ubc18\uc801\uc73c\ub85c \uc0ac\uc6a9\ub418\ub294 \ucd08\uace0\uac15\ub3c4 \uac15\uc7ac\ub85c\ub294 22MnB5 \ubd95\uc18c\uac15\uc774 \uc788\uc2b5\ub2c8\ub2e4. \uc5f4\uac04 \uc131\ud615 \ud6c4 \uc778\uc7a5 \uac15\ub3c4\ub294 1500~2000 MPa\uc5d0 \ub2ec\ud558\uba70, \uc8fc\ub85c A\/B \ud544\ub7ec \ubc0f \ucda9\ub3cc \ubc29\uc9c0 \ube54\uacfc \uac19\uc740 \uc790\ub3d9\ucc28 \uc548\uc804 \uad6c\uc870 \ubd80\ud488\uc5d0 \uc0ac\uc6a9\ub429\ub2c8\ub2e4.<\/p>\n\n\n\n

\uac15\ucca0\uc758 \uac15\ub3c4\ub294 \uac00\uacf5 \ube44\uc6a9\uc5d0 \uc5b4\ub5a4 \uc601\ud5a5\uc744 \ubbf8\uce58\ub098\uc694?<\/h2>\n\n\n\n

\uac15\ucca0\uc758 \uac15\ub3c4\uac00 \ub192\uc744\uc218\ub85d \uac00\uacf5 \uc2dc \ud544\uc694\ud55c \uc808\uc0ad\ub825\uc774 \ucee4\uc9d1\ub2c8\ub2e4. \uc774\ub85c \uc778\ud574 \uacf5\uad6c\uc758 \uc131\ub2a5, \uacf5\uc791 \uae30\uacc4\uc758 \uac15\uc131, \uac00\uacf5 \uc815\ubc00\ub3c4\uc5d0 \ub300\ud55c \uc694\uad6c \uc0ac\ud56d\uc774 \ub192\uc544\uc9c0\uba70, \uc774\ub294 \uc885\uc885 \uacf5\uad6c\uc758 \ub9c8\ubaa8 \uac00\uc18d\ud654, \ud6a8\uc728 \uc800\ud558, \uc81c\uc870 \ube44\uc6a9 \uc99d\uac00\ub85c \uc774\uc5b4\uc9d1\ub2c8\ub2e4. \ub530\ub77c\uc11c \uac15\uc7ac\ub97c \uc120\uc815\ud560 \ub54c\ub294 \uac15\ub3c4\uc640 \uc0ac\uc6a9 \uc131\ub2a5\ubfd0\ub9cc \uc544\ub2c8\ub77c \uac00\uacf5\uc131 \ubc0f \uc804\ubc18\uc801\uc778 \uc0dd\uc0b0 \ube44\uc6a9\ub3c4 \uace0\ub824\ud574\uc57c \ud569\ub2c8\ub2e4.<\/p>\n\n\n\n

\uc77c\ubc18\uc801\uc73c\ub85c \uc2a4\ud14c\uc778\ub9ac\uc2a4\uac15, \ud569\uae08\uac15, \uace0\ud0c4\uc18c\uac15\uc758 \uac00\uacf5 \ube44\uc6a9\uc740 \ub192\uc740 \ud3b8\uc774\uba70, \uc911\ud0c4\uc18c\uac15\uc740 \uc911\uac04 \uc218\uc900\uc774\uace0, \uc800\ud0c4\uc18c\uac15, \uc8fc\ucca0, \uc544\uc5f0\ub3c4\uae08\uac15\uc740 \ub300\uac1c \uac00\uacf5 \ube44\uc6a9\uc774 \uc0c1\ub300\uc801\uc73c\ub85c \ub0ae\uc740 \ud3b8\uc785\ub2c8\ub2e4. \uadf8\ub7ec\ub098 \uc2e4\uc81c \ube44\uc6a9\uc740 \uc5ec\uc804\ud788 \uc7ac\ub8cc \uc0ac\uc591, \ubd80\ud488 \uad6c\uc870, \uac00\uacf5 \uacf5\uc815 \ubc0f \uc7a5\ube44 \uc131\ub2a5\uc5d0 \ub530\ub77c \ub2ec\ub77c\uc9d1\ub2c8\ub2e4.<\/p>\n\n\n\n

\uc694\uc57d:<\/strong><\/strong><\/h2>\n\n\n\n

\uc704 \ub0b4\uc6a9\uc5d0\uc11c\ub294 \uac15\ucca0\uc758 \uac15\ub3c4\uc640 \uad00\ub828\ub41c \ud575\uc2ec \uc9c0\uc2dd\uc744 \ub2e4\ub8e8\uc5c8\uc73c\uba70, \uc8fc\ub85c \ub2e4\uc591\ud55c \uc885\ub958\uc758 \uac15\ucca0\uacfc \uc5d4\uc9c0\ub2c8\uc5b4\ub9c1 \ubc0f \uc81c\uc870 \ubd84\uc57c\uc5d0\uc11c \uc77c\ubc18\uc801\uc73c\ub85c \uace0\ub824\ub418\ub294 \uac15\ub3c4 \ub4f1\uae09\uc744 \uc18c\uac1c\ud588\uc2b5\ub2c8\ub2e4. \ub354 \uc790\uc138\ud788 \uc54c\uace0 \uc2f6\uc73c\uc2dc\uac70\ub098, \uc791\uc5c5 \uc911\uc5d0 \ubb38\uc81c\uac00 \ubc1c\uc0dd\ud560 \uacbd\uc6b0 \uac15\ucca0 \uac00\uacf5,<\/a> \ub2e4\uc74c \uc5f0\ub77d\ucc98\ub85c \uc5d4\uc9c0\ub2c8\uc5b4\ub4e4\uc5d0\uac8c \ubb38\uc758\ud558\uc2e4 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc6f0\ub3c4 \uba38\uc2dc\ub2dd<\/a> DFM \uc124\uacc4 \uc9c0\uc6d0 \ubc0f \uac00\uacf5 \ube44\uc6a9 \uc0b0\uc815<\/a>.<\/p>\n\n\n\n

\"\uc6f0\ub3c4<\/figure>","protected":false},"excerpt":{"rendered":"

In machining and new product design, steel selection directly affects part strength, machining difficulty, service life, and manufacturing cost. To help engineers, buyers, and product designers better understand steel performance, this article explains key strength indicators such as tensile strength, yield strength, and endurance strength, while also analyzing common steel types and typical component applications. […]<\/p>\n","protected":false},"author":2,"featured_media":11486,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[5],"tags":[],"class_list":["post-11485","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog"],"_links":{"self":[{"href":"https:\/\/weldomachining.com\/ko\/wp-json\/wp\/v2\/posts\/11485","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/weldomachining.com\/ko\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/weldomachining.com\/ko\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/weldomachining.com\/ko\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/weldomachining.com\/ko\/wp-json\/wp\/v2\/comments?post=11485"}],"version-history":[{"count":3,"href":"https:\/\/weldomachining.com\/ko\/wp-json\/wp\/v2\/posts\/11485\/revisions"}],"predecessor-version":[{"id":11498,"href":"https:\/\/weldomachining.com\/ko\/wp-json\/wp\/v2\/posts\/11485\/revisions\/11498"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/weldomachining.com\/ko\/wp-json\/wp\/v2\/media\/11486"}],"wp:attachment":[{"href":"https:\/\/weldomachining.com\/ko\/wp-json\/wp\/v2\/media?parent=11485"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/weldomachining.com\/ko\/wp-json\/wp\/v2\/categories?post=11485"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/weldomachining.com\/ko\/wp-json\/wp\/v2\/tags?post=11485"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}