【作者】 王忠堂； 栾瑰馥； 白光润；

【Author】 Wang Zhongtang,Zhang Shihong,Xuyi,Luan Guifu,Bai Guangrun (Dept. of Materials Engineering,Shenyang Institute of Technology,Shenyang,P.R.China 110015Institute of Metal Research,Chinese Academy of Sciences,Shenyang,P.R. China 110015Dept. of Metal Forming,Northeastern University,Shenyang. P.R. China 110006)

【机构】 沈阳工业学院材料科学与工程系； 东北大学；

【摘要】 对不锈钢管件无模拉伸变形时壁厚变化进行了实验研究,分析了不锈钢管件无模拉伸时壁厚变化的影响因素及影响规律。实验结果发现,不锈钢管件无模拉伸时,壁厚变化t_f/t_o与D_if/D_i,D_of/D_o,（1-R_s）^1/2的值成正比,对于薄壁不锈钢管件（当t_o D_o<0.1）无模拉伸时,k₁=k₂=k₃=1。更多还原

【Abstract】 Variation of wall thickness during tube dieless drawing has been studied by experiment.It has been put forward that the variation of wall thickness is in directly proportion to outer-diameter,inter-diameter,and(1-Rs)1/2 (Rs-sectional reduction ratio of tube).With the width of deformation increasing,but the value of variation of wall thickness and the derivative of wall thickness variation (tf/t0) to width of deformation both reduces.更多还原