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| 铝合金薄壁圆锥体结构的焊接变形 | |
| 引用本文： | 张建强,张海泉,岳红杰,鹿安理,李德成.铝合金薄壁圆锥体结构的焊接变形[J].焊接学报,2005,26(1):21-24. |
| 作者姓名： | 张建强 张海泉 岳红杰 鹿安理 李德成 |
| 作者单位： | 1. 清华大学,机械工程系,北京,100084;武汉大学,材料工程系,430072 2. 清华大学,机械工程系,北京,100084 3. 首都航天机械公司,北京,100076 |
| 基金项目： | 国家计委产业化前期关键技术研究项目 (计高技【1998】2077号)，清华大学 985重点项目 |
| 摘 要： | 利用实物模型试驻，自动脉冲TIG焊接工艺分别研究了铝台金薄壁圆锥体结构的焊接变形及其变化规律研究结果表明，焊接后结构的变形主要表现为沿母线的纵向挠曲变形和圆周方向椭圆度变化，采用纯氨气保护，两层两道焊接时，结构的最大挠度和椭圆度变化均小于采用氩气加氦气混台保护、一道焊接时的最大挠度值和椭圆度变化。同时采用解析方法对挠曲变形进行了计算，分析了造成两种焊接工艺挠度不同的原因，从而为下一步圆锥体薄壁结构的焊接数值模拟提供验证数据，进而为最终减小和控制结构的焊接变形提供了理论和试验依据。 |
| 关 键 词： | 铝合金 薄壁圆锥体 焊接变形 脉冲TIG焊 收缩体积 |
| 文章编号： | 0253-360X(2005)01-21-04 |
| 收稿时间： | 2004/2/2 0:00:00 |
Welding distortion of thin wall cone structure of aluminum alloy |
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| ZHANG Jian-qiang,. ZHANG Hai-quan,YUE Hong-jie,LU An-li and LI De-cheng.Welding distortion of thin wall cone structure of aluminum alloy[J].Transactions of The China Welding Institution,2005,26(1):21-24. | |
| Authors: | ZHANG Jian-qiang ZHANG Hai-quan YUE Hong-jie LU An-li and LI De-cheng |
| Affiliation: | ZHANG Jian-qiang 1,2 .ZHANG Hai-quan 1,YUE Hong-jie 1,LU An-li 1,LI De-cheng 3 |
| Abstract: | The welding distortion and changing law of aluminumalloy thin wall cone were investigated by means of model test,automaticpulse tungsten inert gas welding.The results showed that the welding dis-tortion was mainly deflection deformation and change of circumference.The maximum deflection of cone structure welded with argon shield wassmaller than that welded with argon and helium mixture.The deflectionwas analyzed with resolving method,the influence of the welding processon deflection was proposed,and the verification data had been providedfor numerical simulation of thin wall cone structure,moreover,the exper-imental basis had been provided for reduction and controlling of weldingdistortion. |
| Keywords: | aluminum alloy thin wall cone welding distortion pulse tungsten inert gas welding |
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