冷轧深冲板制耳率的试验  

Experimental study on earing rate of cold rolled deep drawing sheet

作　　者：胡成武[1] 王镇柱[1] 李文元[1] 崔双好 刘新 

机构地区：[1]湖南工业大学机械工程学院,株洲412000

出　　处：《塑性工程学报》2015年第1期76-81,共6页Journal of Plasticity Engineering

基　　金：湖南省自然科学基金资助项目(12JJ9036);湖南省"十二五"重点学科资助项目

摘　　要：对DC01、DC05、DC06和B180H2的冷轧深冲板进行单向拉伸试验和制耳试验。单向拉伸试验获得了这些材料的屈服强度、抗拉强度、硬化指数、塑性应变比等力学性能参数;制耳试验得到了不同变形程度下冲杯的制耳高度和制耳率,分析了拉深系数、硬化指数、拉深次数与制耳率的关系;并进一步验算了相关材料在轴对称拉深过程中的修边余量。The uniaxiat tensile test and earring test on DC01, DC05, DC06 and B180H2 deep drawing sheet are conducted. Bythe uniaxial tensile test, the yield strength, tensile strength, hardening exponent and plastic strain ratio were obtained. By theearring test, the earing rate and ear height under varying degrees of deformation were obtained. Then the relationship betweendrawing coefficient, hardening exponent, number of drawing and earing rate is analyzed, and the trimming allowance in the axi-symmetric deep drawing of the related materials is further calculated.

关 键 词：单向拉伸试验 制耳试验 制耳率 修边余量 

分 类 号：TG386.41[金属学及工艺—金属压力加工]