【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。更多还原

【Abstract】 The uniaxial tensile test and earring test on DC01,DC05,DC06 and B180H2deep drawing sheet are conducted.By the uniaxial tensile test,the yield strength,tensile strength,hardening exponent and plastic strain ratio were obtained.By the earring test,the earing rate and ear height under varying degrees of deformation were obtained.Then the relationship between drawing coefficient,hardening exponent,number of drawing and earing rate is analyzed,and the trimming allowance in the axisymmetric deep drawing of the related materials is further calculated.更多还原