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论文类型：期刊论文

发表时间：2022-06-30

发表刊物：吉林大学学报 工学版

所属单位：运载工程与力学学部

期号：2

页面范围：500-504

ISSN号：1671-5497

摘要：The influences of tool temperature and stress state of stamped part on its hardness distribution are investigated in tailed die quenching process of vehicle-use ultra high strength steel BR22MnB5.The results show that the hardness of the stamped part decreases with the increase in tool temperature. When the tool is heated up to 400, a part with hardness of 300 HV in the hot region and 460 HV in the cold region is produced. Furthermore, during the stamping, the inner fillet of the stamped part is compressed while the outer fillet of the blank experiences tensile stress. So the hardness of the outer fillet is higher than that of the inner fillet in the stamped part. ? 2016, Editorial Board of Jilin University. All right reserved.

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