HOT-FORGING PRESS AND FORGING METHOD THEREFOR

摘要

PROBLEM TO BE SOLVED: To provide a hot-forging press and its forging method capable of forging a forged product at a stroke and a forming speed suitable thereto and forging various products only by a single press, and to provide a forging method therefor.;SOLUTION: In the hot-forging press P, in which a slide S connected to the eccentric part H of an eccentric shaft ES with a connecting rod CR is moved by rotating the eccentric shaft ES, when the forging is performed at shorter stroke than the maximum stroke of the slide S, the eccentric shaft ES is driven normally and reversely so that the eccentric part H of the eccentric shaft ES is ocsillated with a bottom dead point angle, where the slide S positions the bottom dead point, between. In the case of forging a forged product without needing the maximum stroke, a cycle time can be shortened as compared to the case of rotating the eccentric shaft to only the same direction, so that the producing efficiency can be enhanced and various forged products such as long material, thin material, small forged product can be forged by a single press.;COPYRIGHT: (C)2008,JPO&INPIT