| 摘要 |
PROBLEM TO BE SOLVED: To provide a hot forging mold and a hot forging method capable of easily performing joggle by using a radial forging machine even for material difficult to work used in a turbine blade.SOLUTION: A hot forging mold as the hot forging mold for performing hot forging of rod-like forging raw material according to radial forging has a pair of half-divided pressing surfaces for putting the forging raw material therebetween. Therein, each half-divided pressing surface assumes a continuous convex shape so as to surround the forging raw material and includes a coarsely working surface and a finish working surface of a convex shape having a curvature radius larger than that of the coarsely working surface.SELECTED DRAWING: Figure 1 |
