METHOD FOR PRODUCING BOLT, BOLT, SHAPE MATERIAL FOR BOLT, DEVICE FOR MOLDING SHAPE MATERIAL FOR BOLT AND METHOD FOR MOLDING SHAPE MATERIAL FOR BOLT

摘要

PROBLEM TO BE SOLVED: To make it possible to form a bolt made of a heat resistant aluminum alloy while the generation of cracks in a stock is suppressed in a production process. SOLUTION: The method for producing a bolt 1 comprises: an extrusion stage where, using a heat resistant aluminum alloy, a shape stock 7 is formed by hot extrusion molding; and a machining stage where a stock 8 formed from the shape material 7 is subjected to machining, so as to form the bolt 1 made of the heat resistant aluminum alloy. COPYRIGHT: (C)2008,JPO&INPIT