Thread formation mechanism by planetary conical rolling

摘要

Planetary conical rolling, PCR, is a large deformation tube forming process that produces high accuracy products. PCR process an therefore be used to produce features on the surface of tubes without an overall distortion. In this research, forming of a thread feature on the surface of thin tubes is experimentally examined. The results show thread formign process is composed of three step by step stages that form a high precision tube surface features.