【Summary Description】The manufacturing process of springs includes rolling, hook making or surface ring finishing, heat treatment, and process performance testing.
The manufacturing process of springs includes rolling, hook making or surface ring finishing, heat treatment, and process performance testing.
During mass production, it is rolled on a universal automatic spring coiling machine; For single piece and small batch production, it is made on a regular lathe or by hand. When the diameter of the spring steel wire is less than or equal to 8mm, the cold rolling method is commonly used. Heat treatment is required before rolling, and low-temperature tempering is required after rolling. When the diameter is greater than 8mm, the hot coil method is used (the hot coil temperature is between 800 ℃ and 1000 ℃). After hot coiling, adjust the quality at medium temperature. After the spring is formed, surface quality inspection should be carried out. And other defects; Springs that bear variable loads must also undergo surface treatment, such as shot peening, to improve the fatigue life of the spring.