三层复合板的r值研究  

Study on Lankford(r) of Three-Layer Composite

作　　者：宁爱林[1] 朱旭霞[2] 彭大暑[2] 

机构地区：[1]邵阳高等专科学校,湖南邵阳422004 [2]中南大学,湖南长沙410083

出　　处：《金属成形工艺》2001年第5期25-27,共3页Metal Forming Technology

摘　　要：通过拉伸实验测试了不锈钢 /铝合金 /不锈钢三层复合板的厚向异性系数r,并分析了扩散退火对r值的影响及r值对板材成形性能的影响。分析表明 :扩散退火会降低r值和提高n值。用平均r值和rmin 来判断拉延危险断面的抗拉强度其误差在 6 %左右。In this paper, the Lankford(r)of stainless steel/aluminum alloy/stainless steel three layer composite had been studied by the tensile test. The influence of the Lankford(r) by the diffusion annealing and the influence of the formability by Lankford(r) were analyzed.

关 键 词：复合板 成形性能 厚向异性系数 扩散退火 抗拉强度 冲压 

分 类 号：TG386.44[金属学及工艺—金属压力加工]