What are the precautions for automotive sheet metal processing stamping parts?

2023-10-24 08:28:35

The many outstanding advantages of stamping processing make it widely used in various industries such as machinery manufacturing, electronics, and electrical appliances. Most of them are processed by stamping methods, ranging from automobile covering parts to small clocks, instruments and instrument components. At present, stamping products obtained by cold stamping process occupy a very important position in modern automobiles, tractors, motors, electrical appliances, instruments, meters and various electronic products and in people's daily lives.

Stamping products have good quality, such as smooth surface, high precision, stable dimensions, and good interchangeability; light weight, good rigidity, and high strength; the stamping process can also process workpieces that are difficult to process by other processing methods, such as thin-shell parts. Workpieces with flanges, undulations, ribs, etc.

Below, the stainless steel sheet metal parts manufacturer briefly discusses what are the precautions for the stamping process of automotive sheet metal parts?

1. The yield strength and tensile strength are high. The work hardening of austenitic stainless steel is large and prone to springback and damage to the crossbar. Therefore, the humidity, stiffness and wear resistance of the processing equipment must be excellent. Aluminum bronze ( PVD, CVD surface treatment).

2. The heat conduction is small and the thermal expansion is large (Austenitic system), so water-soluble lubricating oil with excellent cooling performance is selected.

3. Because some products often directly utilize the surface gloss of stainless steel plates, surface damage must be avoided during external pressing. In order to prevent surface defects and provide lubrication, the surface of steel plates is usually coated with vinyl or lubricated steel plates are used.

4. For stainless steel, the work hardening properties near room temperature are greatly affected by temperature, and the formability is greatly affected by temperature and speed. Usually under high temperature and high speed conditions, the n value decreases and the formed parts deteriorate. Therefore, excellent stamping performance can be obtained by using the warm processing method that affects the size of temperature.