| Effect of frictions on cross section quality of thin-walled tube NC bending |
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| 作者姓名： | 杨合 谷瑞杰 詹梅 李恒 |
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| 作者单位： | College of Materials Science and Engineering Nort hwest Polytechnic University Xi'an 710072 China，College of Materials Science and Engineering Nort hwest Polytechnic University Xi'an 710072 China，College of Materials Science and Engineering Nort hwest Polytechnic University Xi'an 710072 China，College of Materials Science and Engineering Nort hwest Polytechnic University Xi’an 710072 China |
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| 基金项目： | 国家杰出青年科学基金;国家自然科学基金;中国航空科学基金 |
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| 摘 要： | 1 Introduction Thin-walled tube bending parts have been increasingly used in many industry fields such as aviation, aerospace and automobile for their easy satisfaction in light weight, high strength and low consuming. The numerical controlled(NC) rotar…
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| 关 键 词： | 薄壁管 摩擦 横截面质量 弯曲挠度 |
| 收稿时间： | 2005-09-21 |
| 修稿时间： | 2006-03-16 |
Effect of frictions on cross section quality of thin-walled tube NC bending |
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| YANG He,GU Rui-jie,ZHAN Mei,LI Heng.Effect of frictions on cross section quality of thin-walled tube NC bending[J].Transactions of Nonferrous Metals Society of China,2006,16(4):878-886. |
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| Authors: | YANG He GU Rui-jie ZHAN Mei LI Heng |
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| Affiliation: | 1. College of Mechanical Science and Engineering, Northeast Petroleum University, Daqing 163318, PR China;2. School of Aerospace Engineering, AML, Tsinghua University, Beijing 100084, China;3. School of MOE Key Laboratory of Petroleum Engineering, China University of Petroleum, Beijing 102249, China;1. School of Aerospace Engineering, AML, Tsinghua University, Beijing 100084, China;2. MOE Key Laboratory of Petroleum Engineering, China University of Petroleum, Beijing 102249, China;1. Faculty of Civil Engineering & Mechanics, Jiangsu University, Zhenjiang 212013, China;2. Faculty of Engineering, University of Toyama, Toyama 9308555, Japan |
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| Abstract: | The effect of frictions between dies and tube on the cross section quality of thin-walled tube numerical controlled(NC) bending was studied by numerical simulation method, combined with theoretical analysis and experiment. The results show that the frictions between mandrel, wiper, pressure die, bending die and tube have a significant and complicate effect on the section quality of thin-walled tube NC bending. To improve the section quality, frictions between mandrel, wiper and tube should be decreased, but the frictions between the pressure die, bending die and tube increase. The effect on the section distortion is more significant from mandrel, wiper, pressure die to bending die and the effect on the wall thinning more significant from mandrel, pressure die, wiper, to bending die. The effects of frictions between all dies and tube on wall thinning are smaller than their effects on section distortion. Mandrel and wiper should be lubricated well and drawing oil is used to lubricate them in actual production. The frictions between pressure die, bending die and tube should be increased and the dry friction is used between pressure die, bending die and tube in actual production. |
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| Keywords: | thin-walled tube tube NC bending friction cross section quality |
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