等截面侧向挤压的力学分析  

MECHANICAL ANALYSIS OF EQUAL CROSS SECTION LATERAL EXTRUSION

作　　者：郝南海[1] 王全聪[1] 

机构地区：[1]太原重型机械学院,030024

出　　处：《塑性工程学报》2001年第3期14-16,共3页Journal of Plasticity Engineering

基　　金：山西省青年科学基金资助项目 (9810 2 7)

摘　　要：等截面侧向挤压是实现材料纯剪切变形的有效方法。通过网格实验研究了等截面侧向挤压过程中材料的变形情况 ,结果表明塑性变形区仅位于模具通道拐点连线附近。通过几何分析推导出等截面侧向挤压等效应变计算公式 ,通过上限分析推导出等截面侧向挤压变形力计算公式 ,理论计算结果与实测值进行了对比。Equal cross section lateral extrusion(ECSLE) is a effective method realizing pure shear deformation.The deformation pattern of ECSLE was investigated with grid experiment.The experiment result shows that the plastic deformation zone is a linear area between the two corners of die channel.The equivalent strain formula of ECSLE was derived iby geometry analysis and the deformation load formula was derived by upper bound method.The analysis results were compared with the experiment results.

关 键 词：等截面侧向挤压 等效应变 变形力 剪切变形 

分 类 号：TG371[金属学及工艺—金属压力加工]