Little Porosities Trapping During Laser Spot Welding of Tantalum

机译：钽激光点焊过程中的微孔截留

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It has been shown that high power welding hardly affects the quality of the seam welds and brings out many defects such as porosities in the material. The aim of the study is to investigate and model the porosities forming and trapping at the end of a laser pulse, in the case of tantalum Nd: YAG laser spot welding. So we focused on the solidification stage of single spot welds and we developped a simple model that helps to understand how little porosities can be trapped in the welded zone. The results are in good agreement with the experimental data observed on tantalum and stainless steel.

机译：已经表明，高功率焊接几乎不会影响缝焊的质量，并带来许多缺陷，例如材料中的孔隙。该研究的目的是对钽Nd：YAG激光点焊的情况下的激光脉冲结束时形成和捕获的孔隙进行调查和建模。因此，我们专注于单点焊的凝固阶段，并开发了一个简单的模型，该模型有助于了解在焊接区域中可以捕获多少孔隙。结果与在钽和不锈钢上观察到的实验数据高度吻合。

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《Conference on Laser Materials Processing Vol.85f: Welding and Modeling, Nov 16-19, 1998, Orlando, FL USA》|1998年|p.168-178|共11页
会议地点 Orlando FL(YS)
作者
K.GIRARD; J.M.JOUVARD; Ph. NAUDY;
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作者单位

LTm, IUT Le Creusot, 12 rue de la Fonderie, 71200 Le Creusot, France;

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原文格式 PDF
正文语种 eng
中图分类无线电电子学、电信技术;
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Little Porosities Trapping During Laser Spot Welding of Tantalum

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