热冲压主要工艺参数及对成形的影响  

Effects of Main Process Parameters on Hot Stamping Forming

作　　者：金伟[1] 王强[1,2] 杨幸东 

机构地区：[1]井冈山大学机电学院,江西吉安343009 [2]吉安市仿生包装工程技术研究中心,江西吉安343009 [3]吉安瑞鹏飞精密科技有限公司,江西吉安343100

出　　处：《热加工工艺》2014年第1期9-11,共3页Hot Working Technology

基　　金：江西省教育厅2012年度科技项目(GJJ12467);2012年江西省科技厅科技支撑计划项目(20123BBG70194)

摘　　要：热冲压是超高强度钢板压力成形的新技术。探讨了热冲压金属板材经过加热、保温均匀奥氏体化后,在冲压成形时淬火冷却,材料组织发生相变而强化的工艺过程。重点分析了加热温度、保温时间、冷却速度、保压时间、冲压速度对热成形工艺过程和零件质量的影响,介绍了几个主要工艺参数的选择方法。这对热冲压成形技术的应用有一定的指导意义。Hot stamping is a new technology of the ultra high strength steel pressure forming. During the hot stamping metal sheet after heating, insulation homogeneous austenitizing, quenching and cooling while stamping, the technology process of the material microstructure enhanced by the phase change was discussed. The effects of heating temperature, heat preservation time, cooling rate, pressure keeping time and stamping speed on hot forming process and parts quality were mainly analyzed. The selection methods of several major process parameters were introduced. This has certain guiding significances for application of hot stamping technology.

关 键 词：热冲压 高强度钢 奥氏体化 淬火 

分 类 号：TG306[金属学及工艺—金属压力加工]