Integrated CNC Machining for Automotive Excellence
Yecheng is a professional CNC automotive parts factory, from precision CNC machining to surface treatment. For customers in the automotive, electronics, and industrial industries, the accuracy of the parts is just as important as the appearance.
As a result, we have bridged the gap between multi-axis CNC milling/turning and in-house anodizing production lines, offering a fully integrated service from raw material to final products.
Automotive CNC Precision Parts
Taking into account performance, cost, and manufacturability, aluminum, steel alloys, and plastic are the most common materials for CNC automotive parts. See the relative parts below.




Why Choose Yecheng
Yecheng, with over 15 years’ experience, is proficient in the core standards of the automotive industry (such as IATF 16949 quality system), ensuring compliance throughout the entire process from process design to delivery.

With expertise in complex parts, we provide diverse material processing capabilities.

Our tool life management practices guarantee consistent, long-term repeatability for each automotive part.

We provide DFM feedback, 1-on-1 engineering support, and full-process management.

Our network of over 60 CNC machining centers enables fast, reliable DDP shipping for all your orders.
Advanced Automotive Part CNC Machining
3/4/5 Axis CNC Milling: We can achieve high-precision one-time processing of complex curved surfaces, reducing the number of clamping operations and improving efficiency and accuracy.
CNC Turning: We can process shaft, disc, and sleeve parts. The dimensions are stable, and the surface roughness is excellent.
From complex geometry automotive parts to thin-walled automotive parts, we possess the precision machining capabilities covering all processes, providing stable and reliable part manufacturing solutions for automotive and industrial customers.


Engineering Support & DFM Optimization
Before the actual production of CNC automotive parts, the biggest cost is often not the machining, but the “communication gap” between design(you) and manufacturing(I).
In order to avoid any misunderstandings, we provide you with a free DFM report and design optimization suggestions. On the one hand, we can improve manufacturability and after optimizing. On the other hand, we can both reduce machining cost.
Request your free DFM report today and reduce production cost by 10%.
Automatic Sandblasting Machine & In-house Anodize


For aluminum CNC automotive parts, the most common surface finish is sandblasting with anodizing. Sandblasting can easily remove the machining marks after automotive parts CNC machining and polishing. We can customize the colors you want by anodizing.
No limited MOQ for specific colors; start your project now!
Surface Finishing
If you don’t know how to choose the correct surface treatment for your cnc machined automotive parts, tell us your materials first.

Accept normal anodize (Type II) and hard anodize(Type III).

Provide various texture effects such as matte, highlight, wrinkle and sand texture.

Usually do zinc plating and chrome plating if no other specified.

Materials for Automotive CNC Machining
See the data sheet if you want to know more about CNC aluminum automotive parts, CNC titanium car parts, CNC stainless steel automotive components, and precision CNC brass bushings for vehicles.
- Data Sheet
| Material | Key Properties | Typical Automotive Applications | Machinability | Surface Finish Options | Notes / Advantages |
| Aluminum (6061, 7075) | Lightweight, corrosion resistant, high strength-to-weight | Engine housing, brackets, suspension parts | Excellent | Anodizing, Powder Coating, Polishing | Ideal for reducing vehicle weight |
| Stainless Steel (304, 316, 17-4PH) | Corrosion resistant, strong, durable | Structural parts, fasteners, exhaust components | Moderate | Polishing, Passivation, Electroplating | Long-lasting, withstands high stress |
| Titanium (Ti-6Al-4V) | Extremely high strength-to-weight, corrosion resistant | Performance parts, aerospace-influenced components | Difficult | Anodizing, Polishing | High performance, lightweight, expensive |
| Brass / Bronze | Good wear resistance, corrosion resistant | Bushings, fittings, valve components | Easy | Polishing | Smooth operation, low friction |
| Carbon Steel / Alloy Steel | High strength, toughness | Shafts, gears, engine components | Moderate | Black Oxide, Hardening | Cost-effective, strong for high-stress parts |
| Inconel / Superalloys | High temperature & corrosion resistance | Turbocharger parts, exhaust valves | Difficult | Polishing, Passivation | High-performance, extreme conditions |
| PEEK / Engineering Plastics | Lightweight, chemical-resistant | Insulators, bushings, seals | Easy | Machining / Polishing | Used for insulation and low-friction parts |
Customer Testimonials
We have over 20+ machining centers importing from Japan. We can ensure tolerances within 0.05mm, for some critical holes, we can reach 0.01mm.
Yes, we have rich experience in titanium CNC machining.
We do raw material inspection, in-process inspection, and final inspection with CMM. If you need any report, we can provide paper testing files.







