A Performance Study of Clinched Joints with Local Thermal Treatment

Abstract

In order to investigate the influence of local thermal treatment to microstructure and static mechanical behavior on clinched joints of cold rolling steel (SPCC) . The clinched joint performed local thermal treatment based on the test platform, and successively adopting metallographic, micro-hardness and static mechanics behavior test. The result show that the microstructure of SPCC clinching joints found a large amount of lath martensite after quenching treatment, and in comparison to which without local thermal treatment, its static strength is enhanced by 45.39% and its hardness increased by 77.78% .