FREE FORGING METHOD AND STEPPED ANVIL FOR FREE FORGING

摘要

PROBLEM TO BE SOLVED: To provide a free forging method and a stepped anvil for free forging capable of reducing porosity in a stock material.;SOLUTION: The stepped anvil 10 comprises an anvil front part 1, an anvil center part 2 and an anvil rear part 3. The anvil front part 1 includes a pressing face P1 having the height H1. The anvil center part 2 includes a pressing face P2 having the height H2 smaller than the height H1. The anvil rear part 3 includes a pressing face P3 having the height H3 not larger than the height H2. Thus, the pressing faces P1-P3 are formed in a step.;COPYRIGHT: (C)2007,JPO&INPIT