| 摘要 |
PROBLEM TO BE SOLVED: To provide a hot pressing method in manufacturing parts requiring high strength such as a reinforcing member and chassis of an automobile. SOLUTION: In the hot pressing method for a high strength automobile member using an aluminum plated steel sheet, when the automobile member is manufactured by the hot pressing method using the steel sheet in which coating composed mainly of Al is applied to a steel containing, as steel components, 0.05% or more by weight of C after the member is heated under a specific heating condition, it is molded by press molding, and at least one part of the member is cooled at a cooling rate of 10°C/s or above. The steel sheet has high strength and an excellent property, and as a result, it can contribute to the weight reduction of the automobile. COPYRIGHT: (C)2003,JPO
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