TUNGSTEN CONTAMINATION DURING GAS TUNGSTEN ARC WELDING.

被引：0
|
作者：
Voigt, R.C.
Loper Jr., C.R.
机构：
来源：
Welding Journal (Miami, Fla) | 1980年 / 59卷 / 04期
关键词：
WELDS; -; Metallurgy;
D O I：
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学科分类号：
摘要：
This technique is sensitive to tungsten level as low as 0. 05 parts per million small variations in pure aluminum welds caused changes in electrical resistivity of the welds. Welding current type had the greatest effect on contamination. Low current levels caused less contamination. Shielding gas type and arc length also had a measurable effect.
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