锡青铜筒形件变薄拉深速度对成形质量的影响  

Forming Quality of Tin Bronze Cylindrical Parts by the Multi-Step Ironing Tensile Speed

作　　者：李辉 李晋 宋要斌 Li Hui, Li Jin, Song Yaobin(Department of Mining Engineering, Luliang Colleg)

机构地区：[1]吕梁学院矿业工程系

出　　处：《特种铸造及有色合金》2018年第10期1158-1160,共3页Special Casting & Nonferrous Alloys

基　　金：吕梁学院科研基金资助项目(ZRON201605)

摘　　要：采用Simufact仿真软件,以仿真完成后成形件的等效塑性应变与等效应力作为评价标准,研究了变薄拉深速度对锡青铜筒形件力学性能的影响。以成形件的抗拉强度、伸长率与变形力为性能指标,对仿真结果进行间接验证。结果表明,随着变薄拉深速度的增大,锡青铜筒形件的等效塑性应变与等效应力皆呈现先减少后增大的趋势,当拉深速度为15mm/s时,整个加工过程的变形力最小,成形件的等效塑性应变与等效应力最小,抗拉强度最低,伸长率最大。The effects of ironing speed on the mechanical properties of tin bronze tubular parts were investigated by Simufact finite element simulation software with equivalent plastic strain and the equivalent stress of the workpiece after simulation as evaluation criteria.The tensile strength,elongation and deformation force of the forming parts were taken as the performance indexes to verify the simulated results.The results show that with the increase of ironing speed,the equivalent plastic strain and equivalent stress of tin bronze cylindrical parts are decreased firstly and then decreased.With the ironing speed of 15 mm/s,deformation force,the equivalent plastic strain and equivalent stress as well as tensile strength of forming a minimum parts reach the minimum values,while elongation is the highest value.

关 键 词：变薄拉深 等效塑性应变 力学性能 

分 类 号：TG146.11[一般工业技术—材料科学与工程] TP311[金属学及工艺—金属材料]