Processing technology of arc-shaped spring
A processing technology, arc-shaped technology, applied in the field of arc-shaped spring processing technology, can solve the problems of low yield, high instantaneous torque, and abnormal use, etc., and achieve high molding rate, long fatigue life, and easy control of parameters.
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[0042]A processing technology for arc springs, which uses OTEVA 75SC material as the raw material for processing, checks the raw materials and eliminates unqualified products, and rolls the spring. The spring coiling is carried out on a computer numerical control spring coiling machine with more than four axes. The steel wire blank is wound into a cylindrical coil spring by tightening the two ends of the spring according to the prefabricated height, outer diameter and number of turns. After coiling the spring, keep the annealing temperature at 410°C in the tempering furnace for stress relief annealing, the holding time is 60 minutes, and the residual stress on the surface of the spring is less than 150Mpa. After annealing, grind the two ends of the spring, the grinding angle is 270~330 degrees, and the remaining thickness of the end is greater than 0.15d (d is the diameter of the steel wire). The effective coils of the spring are separated one by one, so that the pitch on one ...
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