初始成形温度对超高强钢板热成形件精度的影响  

Effect of Initial Forming Temperature on Precision of Hot Forming Parts of Ultra High Strength Steel Plate

作　　者：李兵[1,2] 张春[1,3] 王敏[1] 肖海峰[1] 李少兵[2] 

机构地区：[1]湖北汽车工业学院材料科学与工程学院,湖北十堰442002 [2]东风汽车公司工艺研究所,湖北十堰442002 [3]西安交通大学机械工程学院,陕西西安710049

出　　处：《热加工工艺》2017年第11期107-109,共3页Hot Working Technology

基　　金：国家自然科学基金资助项目(51205116);湖北省教育厅科学计划项目(Q20151803);湖北省现代汽车零部件技术重点实验室开放基金项目(2013-07);高等学校优秀中青年科技创新团队计划项目(T201518)

摘　　要：为了研究初始成形温度对超高强板热成形件精度的影响规律,通过实验分析了初始成形温度和热成形件回弹、厚度、氧化皮厚度及力学性能的关系。结果表明,在实验条件下,随着初始成形温度增加,零件的力学性能先增加,在初始成形温度高于812℃后,零件的力学性能变化不大;随着初始成形温度的增加,零件的回弹量和最小厚度先减小,在初始成形温度高于812℃后,零件回弹和最小厚度变化不大;初始成形温度对氧化皮厚度影响不大。In order to study the effect of initial forming temperature on the precision of ultra high strength plate hot forming parts, the relationships among the initial forming temperature, the springback, the thickness, the thickness of the oxide skin of hot forming parts and the mechanical properties were analyzed by experiments. The results show that under the experimental conditions, with the increase of the initial forming temperature, the mechanical properties of the parts increase fLrStly, and the mechanical properties of the parts change little after the initial forming temperature is higher than 812 ~C. With the increase of the initial forming temperature, the springbaek and the minimum thickness of the parts decrease firstly, and the springback and the minimum thickness of the parts change little after the initial forming temperature is higher than 812 ℃. The initial forming temperature has little effect on the oxide scale thickness.

关 键 词：成形温度 超高强钢 成形精度 回弹 力学性能 

分 类 号：TG386.41[金属学及工艺—金属压力加工] TG306