环件辗扩中变形区滑动中性角的计算  

Calculation of sliding neutral angle in deformation zone of ring rolling

作　　者：左治江[1] 杨俊杰[1] 余五新[1] 

机构地区：[1]江汉大学机电与建筑工程学院,湖北武汉430056

出　　处：《锻压技术》2009年第1期68-72,共5页Forging & Stamping Technology

基　　金：武汉市青年科技晨光计划(200850731365);湖北省教育厅科学技术研究计划优秀中青年人才项目(Q20083402)资助

摘　　要：采用主应力法建立了求解环件辗扩变形区中滑动中性角的力学模型。详细地分析了变形区中的前滑区和后滑区受力情况,根据受力平衡方程及辗扩时的边界条件,建立了求解变形区滑动中性角的联立方程组。用Matlab编写了滑动中性角的求解程序,对具体实例进行了计算,得到了辗扩终了时的滑动中性角。A mechanical model was built to obtain sliding neutral angle in deformation zone of ring rolling by slab method. The load condition of forward slid zone and backward slid zone in the deformation zone was analyzed in detail. According to the load equilibrium equation and the boundary condition of ring rolling, the union equations were built to solve the sliding neutral angle in the deformation zone. A Matlab program was compiled for an actual example to obtain the sliding neutral angles at the end of ring rolling.

关 键 词：环件辗扩 中性角 前滑区 后滑区 

分 类 号：TG335.19[金属学及工艺—金属压力加工]