| 摘要 |
PURPOSE:To permit easy working of a titled stock without subjecting the same to electric discharge machining by replacing only the part of a solidified material where post-working is required with an easily machinable material at the time of manufacturing the stock by a hot hydrostatic pressurization method. CONSTITUTION:A powder material 2 is packed into a capsule 1 and is subjected to the hot hydrostatic pressurization treatment (HIP treatment) to manufacture the difficultly workable molding stock 3. The easily machinable material 4 having a required form is preliminarily disposed in the position in the capsule 1 where the stock is to be worked in a post stage. The material is then subjected to the HIP treatment after the powder packing. The material 4 which is a dummy material is held embedded as it is in the product after the HIP treatment in some cases and is removed according to need in other cases. The stock subjected to the HIP treatment in the above-mentioned manner is subjected to machining of a screw hole, etc., in the material 4 part or in the case of forming the removed hole, the material 4 of a wire or the like is removed by machining.
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