40Cr高速冷滚打成形过程模拟分析  

Simulation Analysis for High Speed Cold Roll-beating Forming Process of 40Cr Steel

作　　者：李玉玺[1] 李言[1] 杨明顺[1] 何望云[1] 崔凤奎[2] 

机构地区：[1]西安理工大学机械与精密仪器工程学院,西安710048 [2]河南科技大学机电工程学院,河南洛阳471003

出　　处：《机械科学与技术》2016年第4期594-600,共7页Mechanical Science and Technology for Aerospace Engineering

基　　金：国家自然科学基金项目(51475366,51475146);陕西省教育厅重点实验室科学研究计划项目(12JS072);西安理工大学博士创新基金项目(207-002j1302)资助

摘　　要：为揭示40Cr高速冷滚打成形机理,依据金属材料塑性变形机理,进行高速冷滚打条件下的40Cr击打试验,得到了40Cr在高速、大变形条件下应力应变曲线;基于冷滚打成形高速大变形的塑形变形特点,结合40Cr在高速、大变形下的应力应变曲线,应用Deform仿真软件进行了不同变形区域、不同温度、不同应变速率下高速冷滚打成形的分析,揭示了高速冷滚打成形的应力、应变、温度、金属流动变化规律,进一步解释了冷滚打成形的规律,为深入研究高速冷滚打成形奠定基础。To explore the deforming mechanism in high speed cold roll-beating of 40Cr, according to the plastic deforming mechanism, we carry out the striking experiments to obtain the strain-stress curves under high speed cold roll-beating conditions of 40Cr. Considering the plastic deformation characteristics of high speed and big deformation, based on the obtained strain-stress curve, we use the Deform simulation software to analyze the high speed cold roll-beating forming in different deforming zones under different temperatures and stain rates so as to reveal the variation laws of strain, stress, temperature and metal flowing characters, which will be helpful to explain the cold roll-beating forming laws and can lay the foundation for further study of cold roll-beating.

关 键 词：40Cr 击打实验 DEFORM 冷滚打 仿真分析 

分 类 号：TG334.19[金属学及工艺—金属压力加工]