Drawing-based automotive manufacturing
Automotive & Racing Parts CNC Machining
Weldo manufactures drawing-defined automotive, EV and racing components for prototypes, low-volume builds and repeat orders.
- Prototype to repeat orders
- Drawing-defined tolerances
- Inspection records by agreement
自動車およびモータースポーツ用部品
Custom Parts for Vehicle Programs
Six common component groups for automotive, EV and racing projects.
Powertrain & Engine
Pistons, pulleys, manifolds, turbo housings, covers and adapters.
トランスミッション・ドライブトレイン
Gearbox housings, shafts, couplings, flanges, spacers and mounts.
Chassis, Suspension & Brakes
Knuckles, hubs, caliper parts, brackets and suspension interfaces.
EV & Thermal Management
Motor housings, inverter cases, cold plates, heat sinks and sensor mounts.
Vehicle Structures & Equipment
Mounts, reinforcement parts, panels, fixtures and equipment housings.
Custom Racing Parts
One-off and low-volume powertrain, suspension, cockpit and cooling parts.
Original project images
Custom Automotive Parts
Machined metal and engineering-plastic components for development, replacement and repeat production.
Process selection
自動車部品の製造工程
The route is selected from geometry, material, quantity, tooling, inspection and delivery requirements.
CNC加工
Housings, shafts, brackets, interfaces and complex precision components.
シートメタル
Panels, brackets, covers, enclosures and heat-management structures.
射出成形
Defined plastic clips, ducts, covers, housings and functional components.
3Dプリンティング
Form, fit and assembly checks before production tooling or machining.
Materials and finishes
Material Options for Automotive Parts
Choose the grade and condition from load, temperature, wear, weight, corrosion, electrical function and cost requirements.
アルミニウム合金
Lightweight options for housings, brackets, adapters, cooling parts and racing structures.
Alloy Steels
For shafts, transmission interfaces and loaded components requiring strength and wear resistance.
ステンレス鋼
Corrosion-resistant options for fittings, sensor mounts and fluid-system parts.
チタン合金
For selected components requiring high strength-to-weight ratio and corrosion resistance.
Copper, Brass & Bronze
For electrical, thermal, connector, bushing and wear-interface requirements.
エンジニアリングプラスチック
For insulation, guides, bushings, covers and low-load functional components.
Tolerance and quality control
Control Critical Features to the Drawing
We inspect agreed dimensions and geometric tolerances against the approved drawing.
- 図面・修正管理
- First-article, in-process and final inspection
- Critical dimensions and GD&T checks
- Material, finish and repeat-order records
Quotation preparation
Send the Information Needed for an Accurate Review
Clear project inputs help confirm manufacturability, inspection scope, price and delivery before production.
Include with Your RFQ
- 2D drawing and 3D model
- Revision, material and quantity
- Critical tolerances and datums
- Finish or heat-treatment requirements
- Inspection documents and delivery target
プロジェクト支援
- Drawing and DFM review
- Material and process-route confirmation
- Inspection requirement review
- Finishing coordination
- Packaging and delivery planning
Buyer questions
Automotive CNC Machining FAQ
Practical answers for automotive engineers, purchasing teams and racing-project buyers.
Can Weldo machine one-off and low-volume racing parts?
Yes. One-off prototypes, test parts and low-volume racing components can be reviewed from controlled drawings, material requirements and inspection criteria.
What information is needed to quote a custom automotive or racing part?
Provide the latest 2D drawing and 3D model, revision, material, quantity, critical tolerances, finish, inspection requirements and target delivery date. These inputs also determine price and lead time.
How do you control consistency from prototype to repeat orders?
Approved drawings, revisions, machining programs and inspection requirements are controlled for each order. Additional production records are supplied when agreed.
Which materials are commonly used for custom racing parts?
Common options include 6061 and 7075 aluminum, alloy steel, stainless steel, titanium and engineering plastics. Selection depends on load, temperature, wear, weight and corrosion requirements.
Can Weldo provide PPAP or automotive quality documents?
Weldo is ISO 9001:2015 certified. PPAP, FAI, control plans, material certificates, CoC, dimensional reports and traceability must be defined and accepted during quotation.
Are custom racing parts automatically road legal or competition approved?
No. Manufacturing a part to drawing does not provide road approval or motorsport homologation. The customer must confirm the rules for the vehicle, series and intended use.
Start Your Automotive Parts Project
Upload your drawings, material, quantity and delivery requirements for a project-specific manufacturing review and quotation.