3-axis cnc machining service
Manufacture your parts using our 3-axis CNC machining machines, achieving precision down to 0.005 inches. Fastest turnaround in 1 day. We offer precision metal and plastic milling services.
- Tolerance down to 0.002 inch
- Simple shape machining
- Delivery 1-5 days
- Prototype to production
- Metal,plastic,composite welcomed
3 axis cnc milling with Weldo
Weldo’s three-axis machining services deliver enhanced production speeds and accommodate diverse materials for manufacturing. We possess the capability to provide superior three-axis machined part production services.
Our specialized three-axis machining team, backed by years of experience and advanced precision equipment, can rapidly produce complex parts with stringent delivery and quality requirements.
what is 3 axis cnc milling ?
Three-axis machining utilizes computer numerical control (CNC) technology to guide cutting tools along three linear axes (X, Y, Z) for removing excess material from workpieces. This process enables operations such as milling, drilling, and tapping, making it ideal for parts with uniform thickness or minimal depth variations.
Custom 3-Axis CNC machining Materials
Our 3-axis machining centers can process over 100 materials including metals and plastics. We can select the appropriate material based on your requirements, operating environment, budget, and post-processing needs for your parts. Review our list of commonly used 3-axis CNC milling materials below and contact us to discuss your specific needs.
Metal material :
Aluminum
Aluminum is the most commonly used precision-machined component. It has a low density, a hard texture, and a soft material. Thanks to its corrosion resistance, it is widely used in aerospace, bionic bones, and automotive parts manufacturing.
Color : Silver.
Types : Aluminum 6061、7075、2024、5052、6063 and MIC-6.
Surface finish : Polishing, Brushing, Sandblasting, Chrome Plating, Anodizing, Electroplating, Powder Coating, Laser Etching.
Delivery time : 1-5 days.
Stainless steel
Stainless steel offers strong corrosion resistance and a smooth, easy-to-clean surface. It is primarily used in kitchen equipment components, medical devices, building materials and construction, as well as automotive parts.
Color : Silver.
Types : Stainless steel 304/316/201/202/430/444/410/420/440c/2205/2507/17-4ph/17-7ph.
Surface finish : Polishing, Brushing, Sandblasting, Electroplating, Spraying, PVD (Physical Vapor Deposition), Passivation, Pickling, Coloring.
Delivery time : 2-5 days.
Copper
Possesses electrical conductivity, tensile ductility, and antimicrobial properties, primarily used for processing into crafts, decorative items, and medical equipment.
Color :Orange,yellow.
Types : copper H59/H62/Hpb59-1/C36000/HAI77-2/HSN62-1/HPb/HMn/HAl/HSn/HNi.
Surface finish : Passivation, Electroplating, Chemical Plating, Shot Peening, Sandblasting, Chemical Film Treatment, Polishing, Bright Cleaning.
Delivery time : 1-5 days.
Bronze
Types : Tin bronze, aluminum bronze, beryllium bronze, silicon bronze, manganese bronze.
Surface finish : Sandblasting, polishing, knurling, grinding, passivation, chemical film coating, impregnation coloring, brush/spray coloring, electroplating, anodizing, powder coating, brushing.
Delivery time : 1-5 days.
Steel
Steel is an iron–carbon alloy with elements like chromium and nickel, offering strength, toughness, wear, and corrosion resistance. It is widely used for bolts, shafts, gears, cutting tools, and engine components like valves and turbine blades.
Color : Silver .
Types : Steel S20C,S45C,S50C,SK85,SK95,40Cr,4140,4130,H13,D2,W1,A2,D2,M2,SKD11,ASP-23,S136.
Surface finish :Sandblasting, Mirror Finish, PVD Coating, Brushed Finish, Spray Coating, Electroplating.
Delivery time : 1-5 days
Magnesium
Magnesium offers low density, good thermal conductivity, and easy machining, improving CNC efficiency. Its high strength-to-weight ratio and strong damping make it ideal for aerospace, automotive, and electronics applications.
Color : Silver.
Types : Magnesium alloy，AZ91D/AM60B/AM50A/AS41B/ZK60/MB8/AZ31/WE43/ZE41/LA141/LZ91.
Surface finish : Chemical conversion coating, anodizing, nickel plating, electroplating, composite coating, spray painting, powder coating, electrophoretic coating.
Delivery time : 1-5 days.
Plastic material :
ABS
Color : Beige,black.
Types : General-purpose, flame-retardant, heat-resistant, high-impact-resistant, transparent (MBS), filled modified, alloyed, functionalized ABS.
Surface finish :Spray coating, electroplating, screen printing, laser engraving, hot stamping, vacuum coating, water transfer printing, sandblasting, anti-fingerprint coating.
Delivery time : 1-5 days.
PVC
Rigid PVC: Density approximately 1.35 g/cm³, high mechanical strength, tensile strength up to 34.5–49 MPa, elongation 20–40%, strong resistance to acids, alkalis, and oils, aging resistant, suitable for chemical and corrosive environments.
Color : White,Beige,black.
Types : Rigid PVC and Flexible PVC.
Surface finish : Painting and plating, polishing, sanding
Delivery time : 1-5 days.
POM
Color : white,black,blue,yellow,etc.
Types : POM-H, POM-C.
Surface finish : Polishing, sandblasting, chemical polishing, laser polishing, anodizing/painting.
Delivery time : 1-5 days.
PMMA
High transparency (92%) plastic with good optics and low weight, used for lenses, light guides, and display covers.
Color : clear,white,black,colored.
Types : General-purpose / Impact-resistant / Heat-resistant / Pearlescent.
Surface finish : Polishing, enhanced coating, sandblasting for texture, printing for coloring, anti-scratch and anti-fingerprint treatments.
Delivery time : 1-5 days.
PC
High-toughness thermoplastic with rigidity, insulation, and machinability, ideal for durable electronic and precision parts.
Color : white or black.
Types : General Machinable/Flame Retardant/Reinforced/Blended PC.
Surface finish : Polishing, Hardening, Spraying, Laser Engraving, Electroplating, Hot Stamping.
Delivery time : 1-5 days.
PA
PA (nylon) offers high tensile strength, low friction, and good heat resistance, making it ideal for gears, bearings, and high-load structural parts in automotive, electronics, and industrial machinery.
Color : Colored.
Types : PA6, PA66, PA6T, PA9T.
Surface finish :Mechanical grinding, acid/alkali etching, hydrolysis technology, coating.
Delivery time : 1-5 days.
PE
Color : black,white,colored.
Types : LDPE, HDPE, UHMWPE, PEX, PEX-A, PEX-B.
Surface finish :Polishing, sandblasting, coating, etching.
Delivery time : 1-5 days.
PEEK
PEEK is a high-performance, semi-crystalline plastic with high strength, high temperature resistance, low friction, and excellent chemical stability. It is widely used in aerospace parts, high-temperature components, and medical devices.
Color : Beige,black.
Types : CF-PEEK, GF-PEEK, PEEK with carbon black/ceramic/PTFE/graphite fillers.
Surface finish :Sandblasting, polishing, metal coating, polymer coating.
Delivery time : 1-5 days.
PP
PP is a semi-crystalline thermoplastic with good flow and flexibility. It requires temperature control during machining and is widely used for containers, connectors, and structural parts.
Color : black,white,colored.
Types : PP-H, PP-B, PP-R, HIPP.
Surface finish :Polishing, Sandblasting, Coating.
Delivery time : 1-5 days.
HDPE
HDPE is a linear thermoplastic with high impact resistance and good dimensional stability. Non-toxic and odorless, it is used for valves, pump parts, gears, bearings, and surfboard cores.
Color : black,white.
Types : HI-HDPE, UV-HDPE, UHMWPE, Carbon Black-Filled HDPE.
Surface finish :Polishing, Sandblasting, Coating.
Delivery time : 1-5 days.
HIPS
Color : black.
Types : Impact-resistant HIPS, Brominated flame-retardant HIPS, Glass-fiber reinforced HIPS.
Surface finish :Polishing ，Sandblasting ，Coating.
Delivery time : 1-5 days.
3-Axis cnc machining capability
Our ISO 9001 certification demonstrates that our 3-axis milled parts meet stringent tolerance requirements. We adhere to ISO-2768f tolerance standards for CNC-milled metals and ISO-2768m for plastic parts, enabling you to obtain CNC-machined components with high-precision machining standards.
| PROPERTY | DESCRIPTION |
|---|---|
| Maximum part size | The maximum direct machining diameter is 800mm with a maximum machining length of 1500mm. For longer components requiring precision turning, we can adjust the equipment accordingly. |
| Minimum part size | The diameter is as small as 5 mm, depending on the specific part size requirements and material. |
| General tolerance | Our CNC turning standard tolerance is 0.01mm. If material and structure permit, tighter tolerances as low as ±0.005mm can be achieved. |
| Lead time | Prototype machining typically ships within 1-3 days. Small-batch CNC turning takes 3-5 days, with the fastest turnaround possible within 24-48 hours depending on part complexity and material. |
3 axis cnc machining design guideline
| ITEM | RECOMMENDED SIZE |
|---|---|
| Radii | Minimum inner radius ≥ 2 mm; maximum machining radius up to 500 mm depending on part size and material. |
| Threads and Tapped Holes | External and internal threads from M2 to M50; recommended thread length ≥ 1.5× diameter for stability. |
| Minimum Wall Thickness | Minimum wall thickness: 1.5 mm for metals, 2 mm for plastics to ensure structural integrity. |
| Text | Recommended engraving depth 0.5–2 mm; character height 1–10 mm depending on legibility. |
| Holes | Minimum hole diameter 1 mm; recommended depth ≤ 5× diameter, maximum up to 10× diameter. |
3 axis cnc milling parts display
Our 3-axis CNC machining services effortlessly handle simple two-dimensional flat surface machining, encompassing plastics, metals, large components, and small-batch production. Tolerances can be controlled to as low as 0.005 inch.
Advantage of 3-axis cnc milling service
Mature Technology: 3-axis CNC uses stable G-code systems with simple structure, low failure rates, and lower maintenance costs than multi-axis machines.
Cost Advantage: Simple machining paths reduce tool wear and costs, while automation enables fast production and shorter development cycles.
High Accuracy: Achieves ±0.005 mm tolerance with high repeatability and stable cutting, delivering good surface finish (Ra 0.8 μm).
Risk Control: Simple motion reduces collision risks, and mature data handling ensures safer program transmission and storage.
High Efficiency: Suitable for batch production with short cycle times, and supports milling, drilling, and tapping in one setup.
3 axis cnc machining application
Automotive Manufacturing: Produces gears, bearings, engine parts, and structural components like brackets and connectors with high precision.
Aerospace: Manufactures sensor mounts, panels, and thin-walled parts requiring strength and corrosion resistance in extreme conditions.
Medical Devices: Used for surgical components, implant molds, and endoscope parts with strict biocompatibility and surface requirements.
Electronics: Machines heat sinks, connectors, and precision parts, supporting miniaturization and lightweight design.
Agricultural Machinery: Produces durable parts like blade mounts and gears with high wear and impact resistance.
FAQ of 3 axis cnc machining service
What types of parts are suitable for 3-axis CNC machining?
3-axis CNC machining is best suited for parts with flat surfaces, angled surfaces, stepped surfaces, grooves, or simple curved surfaces, such as:
- Mechanical parts (shafts, gears, boxes)
- Mold cavities (requiring multiple clamping for deep cavities)
- Electronic enclosures (e.g., mobile phone frames, laptop shells)
- Prototyping (rapid design verification)
Not suitable for: Complex curved surfaces (e.g., aerospace blades) or multi-sided one-time forming (requiring 5-axis machining).
What factors affect the accuracy of 3-axis CNC machining? How to optimize?
Factors affecting accuracy:
- Machine rigidity: Insufficient spindle and guide rigidity can cause vibration, affecting surface finish.
- Tool wear: Dull tools increase cutting force, leading to dimensional deviations.
- Fixture stability: Unstable workpiece clamping may cause displacement.
- Programming errors: Unreasonable tool path planning (e.g., overcutting, undercutting).
Optimization methods:
- Regularly check machine accuracy and calibrate the spindle and guides.
- Use high-rigidity tools and control cutting parameters (feed rate, spindle speed).
- Enhance clamping stability with vacuum chucks or hydraulic fixtures.
- Verify tool paths using simulation software (e.g., Mastercam).
How to select cutting parameters for 3-axis CNC machining?
Cutting parameters should be adjusted based on material, tool, and machining type. Key parameters include:
- Spindle speed (S):
- Soft materials (e.g., aluminum): High speed (5000-10000 RPM)
- Hard materials (e.g., steel): Low speed (1000-3000 RPM)
- Feed rate (F):
- Roughing: High feed (500-2000 mm/min) for rapid material removal
- Finishing: Low feed (100-500 mm/min) for surface quality
- Cutting depth (Ap):
- Hard materials: Single pass depth ≤0.5mm
- Soft materials: Single pass depth up to 2-5mm
Tools: Use cutting parameter calculators (e.g., G-Wizard) or refer to tool manufacturer recommendations.
What are common tool problems in 3-axis CNC machining and their solutions?
Problem 1: Tool breakage
- Cause: Excessive cutting force, insufficient tool rigidity, or poor chip evacuation.
- Solution: Reduce feed rate, optimize tool paths (e.g., spiral plunging), and increase coolant flow.
Problem 2: Rapid tool wear
- Cause: High material hardness or unreasonable cutting parameters.
- Solution: Use coated tools (e.g., TiAlN) and adjust spindle speed/feed rate.
Problem 3: Poor surface finish
- Cause: Tool vibration, spindle runout, or chip interference.
- Solution: Use finishing tools, reduce cutting depth, and increase coolant flushing.
How to achieve efficient mass production with 3-axis CNC machining?
Key strategies:
- Automated clamping: Use quick-change systems (e.g., zero-point fixtures) to reduce setup time.
- Multi-part machining: Fix multiple workpieces on the table for continuous processing.
- Tool path optimization: Use high-speed machining (HSM) strategies to minimize air cutting.
- Online inspection: Integrate probes (e.g., Renishaw) for first-article inspection to avoid batch scrap.
- Data management: Centralize program management via CAM software (e.g., Fusion 360) to reduce programming errors.
Case: An automotive parts factory reduced single-piece machining time from 45 to 18 minutes (150% efficiency gain) using multi-part machining and automated clamping.
