Experimental Study on Forging Process of Micro Stepped Gear

Abstract

This paper proposes an integrated computer-aided design and computer-aided manufacturing procedure to produce the forging die for experiment, and the forging formability of micro stepped gear was explored. In the forging process, this paper proposes a novel hybrid forging method with a single die set which would execute two forging stages including the first stage of Upsetting and the second stage of Clamping type Gear forging. In the case study, the materials were fully filled into tooth cavity of small gear of module 0.12mm. On the other hand, the estimated unfilled rate of bigger gear is less 8 to 12%, showing this method is exactly feasible.