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凸缘拉伸性好的析出硬化型热轧高强度钢的开发［日］森田 正彦等１ 前言近年来汽车轻量化的要求导致了汽车厂家需用比以往更高强度的钢板。而高强度钢存在的问题是冲压加工性能恶化。热轧高强度钢板多数用来制造汽车车轮周围的部位。而在该用途中凸缘拉伸特性尤为重要...
Development of precipitation-hardened hot-rolled high-strength steel with good flange stretchability [1] Morita Masahiko et al 1 Introduction The demand for lighter weight vehicles in recent years has led automobile manufacturers to use steel plates of higher strength than ever before. The problem with high-strength steel is the deterioration of the stamping process. Most hot-rolled high-strength steel used to make the car around the wheel parts. In this application flange tensile characteristics is particularly important ...