Chengdacai produces lightweight aluminum extrusions and CNC-machined components for commercial vehicles, electric vehicles, rail equipment and transportation systems. Integrated profiles can reduce part count while improving stiffness and assembly efficiency.
Typical Applications
- EV battery trays, side rails and protective structures
- Vehicle body, roof, step, trim and interior structural profiles
- Rail-car flooring, luggage systems and equipment enclosures
- Cooling plates, brackets and precision machined mounts
Alloy, Temper and Finish Options
| Alloys | 6061-T6 and 6082-T6 for structural and machined components; 6063 for trim and complex sections; 5052 or 5083 for formed or welded sheet-based assemblies. |
|---|---|
| Finishes & Processing | Anodizing, powder coating, e-coat-compatible preparation, CNC machining, friction-stir or conventional welding coordination and corrosion protection. |
Engineering and Procurement Notes
Define load paths, crash or fatigue requirements, weld zones, joining method, corrosion exposure, traceability and inspection plan. Prototype validation should precede production tooling approval.
From Drawing Review to Production
- Share drawings, specifications, annual volume and application conditions.
- We review extrusion feasibility, alloy, tolerances, tooling and secondary operations.
- Samples are inspected and approved before production release.
- Production parts are finished, checked and export-packed to the agreed plan.
Product Reference: Extruded Aluminum Motor Housing
For transportation and electrically driven equipment projects, this product reference shows how an extruded motor-housing profile can be reviewed around mounting interfaces, machining access, wall thickness and surface-finish requirements.
| Reference component | Extruded Aluminum Motor Housing |
|---|---|
| Key review points | Mounting interfaces, bearing or fastener locations, wall thickness, machining access, thermal considerations and surface-finish requirements. |
| Information for quotation | 2D or 3D drawing, assembly interfaces, quantity, critical dimensions, machining requirements and finish specification. |
Frequently Asked Questions
Which alloys suit transportation structures?
6061-T6 and 6082-T6 are common for structural and machined components, while 6063 can suit trim and complex profiles. Alloy selection should follow the load case, joining method and corrosion environment.
Can you machine long extrusions?
Yes. We review the section, length, datums, fixture strategy and tolerances before confirming the machining plan.
Do you support prototype and production quantities?
We can review drawing maturity, tooling needs, inspection requirements and quantity planning for both prototype and production programs.
Related Resources
Custom Extrusion Capabilities6061 / 6063 / 6082 Alloy Guide7075 Alloy Guide5052 / 5083 Alloy GuideRFQ Checklist
Get an Engineering Review and Quotation
Send your drawing, alloy, finish, tolerances and estimated quantity. Chengdacai can review extrusion, CNC machining and finishing requirements before quotation.
Related Engineering Resources
Continue your engineering review with the most relevant material, application and product resources.
- Material Guide6061 vs 6063 vs 6082 Aluminum Alloy Guide
- Material Guide7075 Aluminum Alloy: Properties, Machining and Applications
- Material Guide5052 vs 5083 Aluminum Alloy Guide
- Technical GuideAluminum Extrusion Design Guide: Wall Thickness, Tolerances and Corners
- Technical GuideDesign Guidelines for CNC Machining Aluminum Extrusions
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- Related ProductExtruded Aluminum Motor Housing
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