Methods for hardening cylindrical helical compression spring

摘要

The method of hardening the coil compression springs comprising a winding operation, quenching, tempering, shot peening and zanevolivaniya, characterized in that in the final stages after surgery zanevolivaniya produce peening the inner surface of springs burnishing apparatus reinforcement comprising at least three deforming rollers arranged relative to each other at an angle of 120º, wherein the force required for the operation of work hardening the inner surface of the spring, is provided by a reversal of each Defoe rmiruyuschih rolls by a certain angle.