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| Velocity Field and Variation of Wall Thickness During Tube Dieless Upsetting | |
| 作者姓名： | 王忠堂 栾瑰馥 张士宏 |
| 作者单位： | [1]Dept.ofMaterialsScience＆Engineering,ShenyangInstituteofTechnology,Shenyang110168,China [2]Dept.ofMetalForming,NortheasternUniversity,Shenyang110006,China [3]InstituteofMetalResearch,ChineseAcademyofSciences,Shenyang110016,China |
| 基金项目： | Sponsored by Ministry of Education of China and Natural Science Foundation of Liaoning Province |
| 摘 要： | Theoretical analyses show that the variation of wall thickness is in direct proportion to outer-diameter, inter-diameter, and,（1 Rs平方根）Rs(Rs is sectional increase ratio of tube), the theoretical calculated results of wall thickness during tube dieless upsetting are very approximate to the experimental one. As the width of deformation field increases, both the variation of wall thickness and the derivative of wall thickness variation to width of deformation field (tf/to） reduce. |
| 关 键 词： | 无模锻压 墙体厚度 速率场 管道 柔性金属制造技术 |
Velocity Field and Variation of Wall Thickness During Tube Dieless Upsetting |
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| WANG Zhong-tang,LUAN Gui-fu,ZHANG Shi-hong.Velocity Field and Variation of Wall Thickness During Tube Dieless Upsetting[J].Journal of Harbin Institute of Technology,2004,11(2):218-222. | |
| Authors: | WANG Zhong-tang LUAN Gui-fu ZHANG Shi-hong |
| Affiliation: | 1. Dept. of Materials Science & Engineering, Shenyang Institute of Technology. Shenyang 110168, China 2. Dept. of Metal Forming, Northeastern University, Shenyang 110006, China 3. Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, China |
| Abstract: | Theoretical analyses show that the variation of wall thickness is in direct proportion to outer-diameter, inter-diameter, and (1+R_s)~(1/2) (Rs is sectional increase ratio of tube), the theoretical calculated results of wall thickness during tube dieless upsetting are very approximate to the experimental one. As the width of deformation field increases, both the variation of wall thickness and the derivative of wall thickness variation to width of deformation field (to/tf) reduce. |
| Keywords: | dieless upsetting tube wall thickness velocity field |
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