Automotive Parts Manufacturing Solutions

Massive-grade solution for engine, chassis, braking and transmission system parts. Covering process planning, equipment selection (Broaching, Grinding, Laser, Robot Grinding, Turning/Milling), quality and automation integration, helping PPAP pass and cost optimization.

Common Customer Challenges

The coordination accuracy of coaxiality/position degree and complex hole system is difficult to stabilize at CPK≥1.33
Heat treatment and hardening layer cause deformation and residual stress, and the secondary processing yield decreases
The mass fluctuations of tooth surface, keyway and splines, and the tooth shape/tooth direction error is extremely poor
Deburring and cleanliness are not closed loop, affecting leakage and fatigue life
Frequent replacement, high WIP in the product, OEE and manual efficiency are limited
Insufficient end-to-end traceability, it is difficult to quickly lock batches and abnormal root causes

Automotive Parts Manufacturing Process

Raw Materials And Incoming Materials Inspection

Confirm the material grade, size, surface defects and heat treatment status of the raw materials, and conduct sampling of the first piece of chemical composition and hardness
Universal testing machine, metallographic microscope, three-coordinate measuring machine, ultrasonic flaw detector, heat treatment furnace

Benchmarking And Roughing

The reference surface and positioning holes are established through turning, milling, drilling, boring, and thin-walled parts adopt low clamping force fixtures.
CNC lathe, drilling machine, milling machine, machining center,
Grinding Machine,milling composite machine tool

Shape And Feature Formation

Performs spline/keyway broaching, soft cutting of tooth blanks, hole system finishing and on-machine probe compensation.
Broaching machines, milling machines, drilling machines, on-machine measuring heads, compensation systems.

Heat Treatment

Carburizing/quenching/tempering or induction hardening and stress relieving after tempering.
Carburizing furnace, quenching furnace, tempering furnace, induction hardener, stress relief furnace.

Finishing And Shape Refining

Grind the outer circle/inner hole/plane/tooth surface, and thread grinding and tooth shape modification if necessary.
Cylindrical grinding machines, internal grinding machines, surface grinding machines, gear grinding machines, thread grinding machines.

Surface Strengthening And Ultra-Fine

Performs localized laser hardening/tumbling/polishing, seal face grinding and mating.
Laser hardening machine, tumbling machine, polishing machine, grinding machine, matching research equipment.

Deburring And Cleaning

Use robot deburring, ultrasonic cleaning, high-pressure spraying and other processes to remove burrs and meet cleanliness requirements.
Robot deburring machine, ultrasonic cleaning machine, high-pressure sprayer, vacuum dryer, cleanliness detector

Functional Inspection and Testing

Comprehensive inspection and testing of geometric accuracy, surface quality, and functional performance using precision inspection equipment.
Laser interferometer, surface roughness meter, hardness meter, torque tester, sound level meter, temperature sensor.

Final Inspection and Packaging

Perform final inspection, laser marking, anti-rust packaging, and establish a barcode traceability system.
Three-coordinate measuring machine, laser marking machine, barcode printer, vacuum packaging machine, barcode scanner.

Data Traceability And Quality Control

Through the data acquisition system and SPC system, the full process quality control and data traceability are realized.
Data acquisition system, SPC system, MES system, quality management system.

Our Solution

Engine Machining Solutions

Workpieces: Cylinder/cylinder head, crankshaft, camshaft, oil pump housing, turbocharger housing, piston pin, valve support
Program Points: Five-axis composite processing of cylinder block/cylinder head, consistency control of main/subject oil passages and threaded holes; surface finishing and sealing surface flatness guarantee.
Key Process: Efficient boring and milling, drilling/tapping, surface grinding and surface finishing; leak and cleanliness detection online.

Braking & Chassis Machining Solutions

Workpieces: Brake calipers/pump body, bracket, steering joint, control arm, ball pin seat, wheel hub unit
Program Points: Key hole positions and sealing surfaces of calipers, brackets, and pump bodies; deburring and cleanliness closed loop.
Key Process: Rotating/milling/drilling composite, grinding/grinding, robotic grinding and deburring, pressure/leakage testing.

Steering Machining Solutions

Workpieces: Steering rack, gear shaft, EPAS lead screw/nut, housing
Program Points: The shape and surface quality of connecting rods, ball pins, and shafts; fatigue and corrosion protection requirements.
Key Process: External cylindrical grinding, broaching (spline/keyway), induction/laser hardening, surface polishing.

Transmission & Gears Machining Solutions

Workpieces: Spline shaft, synchronizer gear ring, differential housing, transmission housing
Program Points: The soft and hard cutting combination of shaft teeth and splines, the casing hole system is coaxial; tooth surface shape and noise control.
Key Process: Brushing, grinding/shaving teeth, fine grinding of outer circle/inner holes, surface reinforcement and cleaning.