Formability analysis on titanium grade2 sheets in multi point incremental forming process

Abstract

Single point incremental forming (SPIF) is found to be a good alternative to the conventional sheet metal forming techniques and is suitable for the production of small batch and custom made parts. The major disadvantage of the SPIF process is the time required to complete the job. In this work, a multipoint incremental forming (MPIF) tool which gives better contact on the workpiece and completes the job in less time compared to SPIF is used. The present work investigates the formability and failure mechanism of titanium grade 2 sheets in MPIF process. The major operating parameters selected for the study are step depth, feed rate and speed. Formability of titanium grade 2 sheets increases with decrease in speed and step depth while keeping the feed rate constant. Based on the results it was found that the MPIF process can be effectively utilized for forming sheet metal parts.