Characterization of residual stresses in austenitic disc springs induced by martensite formation during incremental forming using micromagnetic methods

摘要: Abstract Disc springs are very common and important machine elements used in almost all fields of mechanical engineering. They applied when high spring forces required only a small mounting space is available, for example, clutches or rolling bearings. Residual stresses induced by shot peening improve the performance significantly, at same time increases production cost. This paper investigates an incremental forming process that allows geometry generation residual single setup. Accurate measurements needed to control product properties, especially new processes introduced. The possibility apply magnetic properties evaluated. A relation between characteristics Barkhausen noise envelope established. findings supported stress light optical microscopy, showing martensite islands c...