Spring grinding is easy to produce cracks at the end of the tightness, and directly affect the verticality of the spring, load and free length size, so the general grinding process of spring should be carried out after stress relief tempering. Eliminate the residual stress of steel wire cold drawing to prevent the generation of end gap cracks.
The main factors that affect the quality of springs in grinding are as follows:
(1) The grinding wheel should be selected reasonably; (2) the control of the bevel angle of the end ring; (3) a certain number of special measuring tools should be equipped to ensure the grinding quality; (4) the grinding wheel should be repaired in time; (5) the correct size of the grinding sleeve should be selected, and the gap between the spring and the sleeve should be between 0.05 mm and 0.10 mm;
Prevents the generation of cracks during spring grinding. Grinding process should be carried out after eliminating stress and tempering.