The machining accuracy of mechanical parts directly affects equipment performance. Common processes include:
Cutting: Turning, milling, grinding, etc., suitable for high-precision shaft and disc parts, with surface roughness reaching below Ra0.8μm.
Casting and forging: Used for complex-shaped parts (such as engine blocks) or high-strength parts (such as gear shafts), with casting accuracy typically at CT7-CT10 grade.
Stamping and forming: Suitable for sheet metal parts (such as automotive sheet metal parts), with thickness errors controllable within ±0.1mm.
Special machining: Electrical discharge machining, laser cutting, etc., used for difficult-to-machine materials or intricate structures (such as mold cavities).
International standards (such as ISO and DIN) and domestic standards (such as GB and JB) jointly regulate the production of components. GB/T 307.1-2013 specifies the testing method for bearing centripetal force, while the ISO 9001 quality management system requires enterprises to implement full-process traceability from raw material warehousing to finished product delivery. Typical testing methods include coordinate measuring machine (accuracy ±0.001mm), non-destructive testing (such as ultrasonic crack detection), and material composition analysis (such as spectrometer detection of alloy ratio).