Automotive
Balancing Performance, Cost, and Production Scale
Core Constraints for Component Development
Strict Tolerance Control
Stable and Durable Performance
Batch Consistency
Material Traceability
Full-Process Compliance
Fast Delivery Cycle
Engineering-Driven · Full-Cycle Support for Automotive Projects
End-to-end services are closely aligned with automotive development processes, providing specialized support in three major sections from design verification to mass production readiness:
What Can We Do in This Industry
Engine Brackets
Steering Knuckles
Control Arm Brackets
Sensor Housings
Drivetrain Components
Air Outlet Assemblies
*These cases represent just a portion of our work in the automotive manufacturing sector.
To learn more, please browse our case library or contact us
Manufacturing Processes for Automotive Parts
Common Processes
- Precision CNC Machining: Prototypes, Precision Functional Parts, Batch Structural Parts
- Injection Mold Development: Large-Scale Interior and Exterior Molds, Mass Production Life ≥ 500,000 Shots
- Die Casting Mold Manufacturing: New Energy Lightweight Aluminum Alloy Die Castings
- Stamping Mold Customization: High-Strength Steel Chassis Structural Parts
- EDM/WEDM: Mold Cavities, Precision Inserts, Accuracy ±0.002mm
- Surface Treatment: Anodizing, Hard Anodizing, Black Oxide Coating, Galvanizing, High-Gloss Polishing
Process selection is performance-oriented, rejecting over-design and cost waste
Automotive Materials
| Common Grades | Material Category | Typical Automotive Applications |
| Aluminum Alloys | 6061, 7075, 5052, 6063 | New energy battery brackets, motor housings, interior decorative parts, lightweight structural components, heat sinks |
| Carbon Steel | 45#, 1045, 40Cr, 20CrMnTi | Chassis brackets, transmission shafts, gear parts, fasteners, engine accessories |
| Stainless Steel | 304, 316, 430 | Automotive exhaust parts, fuel system components, interior and exterior decorative parts, corrosion-resistant structural parts |
| Mold Steel | P20, 718H, H13, S136, NAK80 | Injection molds for automotive interior/exterior parts, die casting molds for aluminum alloy components, precision mold cores and inserts |
| Engineering Plastics | ABS, PC, PA66, POM, PC/ABS | Automotive dashboard parts, door panels, gear knobs, connector housings, interior trim components |
| High-Performance Plastics | PEEK, PPS, PTFE, LCP | High-temperature engine parts, electronic control system components, high-pressure fuel pipe accessories, precision connectors |
| Copper Alloys | C1100, C3600, CuSn6 | Automotive electrical contacts, heat dissipation components, brake system accessories, precision conductive parts |
Surface Treatment Processes
Anodizing
Applied to aluminum alloy components, enhancing corrosion resistance and wear resistance, available in custom colors for automotive interior and exterior parts.
Hard Anodizing
Increases the surface hardness of aluminum parts, suitable for high-wear components such as chassis brackets and motor accessories in automotive systems.
Black Oxide Coating
Used for carbon steel and alloy steel parts, providing rust and corrosion resistance, widely applied to automotive fasteners, shafts, and chassis components.
Hot-Dip Galvanizing
Forms a protective zinc layer on steel parts, with excellent corrosion resistance, suitable for automotive exterior structural parts and undercarriage components.
Electroplating (Zinc/Nickel/Chrome)
Improves surface finish and corrosion resistance; chrome plating is used for decorative parts, zinc-nickel plating for high-corrosion areas.
High-Gloss Polishing
Applied to mold cavities and automotive appearance parts, achieving a mirror-like finish to ensure the surface quality of injection-molded and machined parts.
Automotive FAQs
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What tolerance levels can be achieved for automotive CNC parts?
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A: ±0.05mm for standard parts, ±0.01mm for precision parts, and ±0.002mm for key surfaces. Tolerances are customized according to structure, material, and function, without blindly pursuing high precision.
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What automotive industry certification documents can be provided?
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We hold the IATF16949 automotive quality management system certification, proficiently apply the APQP/PPAP/FMEA/MSA/SPC five core tools, and can provide a complete set of quality document packages.
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Mold delivery time and service life?
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25–35 days for small and medium-sized molds, 45–60 days for large automotive molds; the service life of standard molds is 300,000–500,000 shots, and enhanced molds can reach more than 1,000,000 shots.
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