Beneficial use of hyperbaric process conditions for welding of aluminium and copper alloys

被引:4
|
作者
Treutler, K. [1 ,2 ]
Brechelt, S. [1 ]
Wiche, H. [1 ,2 ]
Wesling, V [2 ]
机构
[1] Tech Univ Clausthal, Ctr Mat Technol, Agr Str 2, D-38678 Clausthal Zellerfeld, Germany
[2] Tech Univ Clausthal, Inst Welding & Machining, Agr Str 2, D-38678 Clausthal Zellerfeld, Germany
关键词
Aluminium; Copper; Joining; Hyperbaric process; Microstructure; Penetration; GMA-welding;
D O I
10.1007/s40194-021-01088-1
中图分类号
TF [冶金工业];
学科分类号
0806 ;
摘要
The joining of components with as few weld layers as possible is an important aspect of weld seam design due to the resulting reduced manufacturing effort and reduced influence of thermal cycles on the base material as well as reduced distortion. For materials with good thermal conductivity, this is not easily possible. The energy density of the arc has been found to be the core parameter for determining the penetration. In the present work, it is shown how the use of a hyperbaric process environment (2 to 16 bar) allows an increase of the energy density of the arc and thus an increase of the penetration depth for selected aluminium and copper alloys. Furthermore, the effects of this novel approach on weld metal metallurgy are presented. It is shown that the penetration depth can be doubled by increasing the ambient pressure. Furthermore, a statistical model for the prediction of the penetration depth depending on the welding parameters will be presented.
引用
收藏
页码:1623 / 1631
页数:9
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