Automotive Parts

Automotive parts manufacturing focuses on high-volume production, high efficiency, and high consistency. It widely employs blank forming processes such as die casting, precision forging, and stamping, combined with high-speed milling, turning centers, and multi-axis machining to achieve precision finishing of flat surfaces, hole patterns, and complex curved surfaces; For critical components such as engine blocks and transmission housings, strict requirements for positional accuracy and surface roughness must be met. Rotating parts like crankshafts and camshafts rely on grinding and dynamic balancing. Structural components such as steering knuckles and control arms are often machined on horizontal machining centers, where multiple surfaces are finished in a single setup. This is combined with automated loading/unloading, in-process inspection, and cleaning lines to achieve rhythmic production.

Additional information

Machining Category

CNC Machining

Materials

Any Material

Machining Dimensions

Any Size

Machining Accuracy

±0.005mm

Product Description:

Focusing on transmission systems, powertrains, chassis structural components, and components for new energy vehicle “three-electric” systems, we provide global automakers and Tier 1 suppliers with highly consistent, cost-effective parts manufacturing services, backed by micron-level machining precision and end-to-end IATF 16949 quality control.

Component machining capabilities covering core automotive systems

Applications Typical Parts Key Requirements
Powertrain/Engine Crankshafts, connecting rods, camshafts, valve guides, cylinder blocks/heads High fatigue strength, thermal stability, precision bore fits
Transmission System Gears/sprockets (transmission, differential), drive shafts, splined shafts Tooth profile accuracy meets GB/T 10095 Grade 6–7
Chassis/Drivetrain Steering knuckles, control arms, brake caliper housings, wheel hub assemblies High-strength materials, corrosion resistance, dimensional stability
New Energy Vehicle “Three-Electric” Systems Motor housings, electronic control unit enclosures, hydrogen fuel cell bipolar plates, busbar assemblies Lightweight (aluminum alloy), high thermal conductivity, sealing requirements
Body structural components Hot-formed/cold-stamped structural components, door frames, crash beams High-strength steel forming, dimensional accuracy control

Experience in Processing a Full Range of Automotive-Grade Materials

Major Material Categories Typical Grades Application Scenarios
Structural Steel/Alloy Steel 45#, 40Cr, 42CrMo, 20CrMnTi, 38CrMoAl Shafts, gears, connecting rods, high-strength fasteners
Stainless Steel 304, 316L, 410, 420, 440C Exhaust systems, sensor housings, corrosion-resistant components
Aluminum Alloys 6061-T6, 7075-T6, A380, ADC12 (die-cast) Motor housings, lightweight structural components, cooling systems
Copper alloys Tin bronze, aluminum bronze Wear-resistant bushings, guide components
Powder metallurgy/special materials Iron-based/copper-based powder metallurgy parts Greased bearings, synchronizer hubs

Core Process Matrix

Process Type Key Capabilities Typical Precision/Specifications
CNC Turning/Milling Machining of shaft, disc, and housing components Dimensional tolerance ±0.01 mm, positional accuracy ≤0.05 mm
Gear Machining Gear hobbing, gear shaping, gear shaving, gear grinding Accuracy up to GB Grade 6–7
Precision Grinding External Cylindrical, Internal Cylindrical, and Surface Grinding Surface Roughness Ra ≤ 0.4 μm, Roundness ≤ 0.005 mm
Stamping/Forming Precision blanking, cold extrusion, hot forming Dimensional stability Cpk ≥ 1.33
Die Casting/Forging Aluminum alloy/zinc alloy die casting, steel die forging Meets structural strength and lightweight requirements
Heat Treatment Carburizing/Nitriding/Quenching and Tempering/High-Frequency Quenching/Vacuum Quenching Hardness uniformity: ±2 HRC
Surface treatment Phosphating/blackening/Dacromet/galvanizing/anodizing Salt spray test: ≥240 hours (as required)

Contact Us

We provide thermal management solutions for industries such as AI computing, data centers, and renewable energy. If you have any questions, would like a quote, or are interested in technical collaboration, please contact us.