| 摘要 |
PROBLEM TO BE SOLVED: To provide a method for manufacturing a component having hybrid characteristics which has not been achieved without welding while having excellent shape preservability. SOLUTION: In the high-strength component manufacturing method having excellent shape accuracy, the heating temperature of a steel plate is partially changed when pressing the steel plate, and the steel plate is pressed in a condition in which a portion of the steel plate is formed at Ar<SB>1</SB>transformation point or above, the remaining portion is formed at room temperature to below Ar<SB>1</SB>transformation point, and austenite is partially contained. Pressing is preferably completed when the mean temperature of the steel plate is≤500°C, and the steel plate covered with aluminum-based or zinc-based plating is preferably pressed. COPYRIGHT: (C)2005,JPO&NCIPI
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