| 摘要 |
PURPOSE:To repair the damaged part by welding when a die is damaged and save expenses by build-up welding a concave part formed in a die block with tool steel and sinking the built-up part. CONSTITUTION:When a die 1 made by filling tool steel 9 in the concave part 8 of a die block 8 and sinking a die 3 is broken or cracked in a part of the die 3 by forging, the periphery of the broken part and cracked part is removed by arc gouging etc. and the part is build-up welded. By this way, newly welded part is formed in a state homogeneous with original part. Accordingly, the die 1 can be repaired perfectly by engraving the die 3 under this state. |
