薄板激光焊时失稳变形及其控制

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薄板激光焊时失稳变形及其控制

温鹏, 张旭东, 陈武柱, HenryPeng

文章导航 > 焊接学报 > 2006 > (9): 99-102

温鹏, 张旭东, 陈武柱, HenryPeng. 薄板激光焊时失稳变形及其控制[J]. 焊接学报, 2006, (9): 99-102.

引用本文:

温鹏, 张旭东, 陈武柱, HenryPeng. 薄板激光焊时失稳变形及其控制[J]. 焊接学报, 2006, (9): 99-102.

WEN Peng, ZHANG Xu-dong, CHEN Wu-zhu, Henry Peng. Buckling distortion of laser welded thin plates and its control by dynamic cooling[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2006, (9): 99-102.

Citation:

WEN Peng, ZHANG Xu-dong, CHEN Wu-zhu, Henry Peng. Buckling distortion of laser welded thin plates and its control by dynamic cooling[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2006, (9): 99-102.

薄板激光焊时失稳变形及其控制

1.
清华大学机械工程系, 北京 100084
2.
美国通用公司上海研发中心, 上海 201203

Buckling distortion of laser welded thin plates and its control by dynamic cooling

1.
Departement of Mechanical Engineering, Tsinghua University, Beijing 100084, China
2.
GE(China)R & D Center Co., Ltd., Shanghai 201203, China

摘要: 对薄板激光焊时出现的失稳变形进行了试验研究,利用CCD记录和观察0.8 mm和1.5 mm两种厚度的不锈钢板焊接过程中典型的动态变形行为,这种变形行为既包括变形量的大小又包括变形的方向;根据两种厚度薄板表现出的不同变形行为,分析了各自发生失稳的机理。采用冷却水为介质的背面动态冷却方法对失稳变形进行控制,通过对冷热源距离d和冷却水流量q两个主要冷却参数的优化,在有无拘束两种条件下分别得到了0.8 mm和1.5 mm薄板良好的变形控制效果。同时讨论了合理拘束对失稳变形的影响。
- 激光焊 /
- 薄板 /
- 失稳变形 /
- 动态冷却
Abstract: Thin plates are easy to buckle when heated, which limits the application of laser welding of thin plates.Typical distortion behaviors of thin stainless steel plates with two different thicknesses, 0.8 mm and 1.5 mm, were recorded by a digital camera. The recorded behaviors consisted of both amplitude and direction of the disfortion.The two different sheets showed different distortion behaviors, and the buckling mechanism was analyzed respectively. Moreover, according to the two different buckling mechanisms, a backside dynamic cooling technology was introduced to control the buckling distortion. After experimentally optimizing cooling parameters, the cooling distance the and water flow rate, the welding distortion was controlled very well.Influnce of proper restriction on bulking was discussed.
- laser welding /
- thin plates /
- buckling distortion /
- dynamic cooling

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薄板激光焊时失稳变形及其控制

1. 清华大学机械工程系, 北京 100084

2. 美国通用公司上海研发中心, 上海 201203

收稿日期: 2005-08-17

关键词:

摘要: 对薄板激光焊时出现的失稳变形进行了试验研究,利用CCD记录和观察0.8 mm和1.5 mm两种厚度的不锈钢板焊接过程中典型的动态变形行为,这种变形行为既包括变形量的大小又包括变形的方向;根据两种厚度薄板表现出的不同变形行为,分析了各自发生失稳的机理。采用冷却水为介质的背面动态冷却方法对失稳变形进行控制,通过对冷热源距离d和冷却水流量q两个主要冷却参数的优化,在有无拘束两种条件下分别得到了0.8 mm和1.5 mm薄板良好的变形控制效果。同时讨论了合理拘束对失稳变形的影响。

English Abstract

温鹏, 张旭东, 陈武柱, HenryPeng. 薄板激光焊时失稳变形及其控制[J]. 焊接学报, 2006, (9): 99-102.

引用本文:

温鹏, 张旭东, 陈武柱, HenryPeng. 薄板激光焊时失稳变形及其控制[J]. 焊接学报, 2006, (9): 99-102.

WEN Peng, ZHANG Xu-dong, CHEN Wu-zhu, Henry Peng. Buckling distortion of laser welded thin plates and its control by dynamic cooling[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2006, (9): 99-102.

Citation:

WEN Peng, ZHANG Xu-dong, CHEN Wu-zhu, Henry Peng. Buckling distortion of laser welded thin plates and its control by dynamic cooling[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2006, (9): 99-102.

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