D42锭脚空心正挤压成形缺陷的仿真预测  

Simulation Forecast on the Forming Defect of D42 Spindle-foot Forward Hollow Extruding

作　　者：李勇[1] 赵健[2] 张玉新[1] 齐新华[1] 

机构地区：[1]华北水利水电学院机械学院,河南郑州450011 [2]郑州航空工业管理学院机电工程学院

出　　处：《矿山机械》2008年第22期94-96,共3页Mining & Processing Equipment

摘　　要：主要针对芯轴直径的 D42锭脚空心正挤过程进行仿真,通过分析不同芯轴直径对锭脚挤压应力应变场的影响,再现了挤压件的弯曲拱起和裂纹缺陷的形成过程,并分析了缺陷产生的原因及改进措施,实现了仿真技术在锭脚挤压这一新技术成形工艺及模具设计中的指导作用。The forming process of D42 spindle-foot forward hollow extruding with different diameters of core shaft is simulated. By analyzing the influence of different diameters of core shaft on stress and strain fields, the forming process of haunch-up and crack defect on extrusion parts is reproduced, and the causes of defects and corresponding improvement measures are analyzed. It is realized the guidance of simulation technique in the new extrusion process and mold design of spindle-foot.

关 键 词：空心正挤 芯轴直径 缺陷预测 仿真分析 

分 类 号：TG301[金属学及工艺—金属压力加工]