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@jdietrich, while this is generally true there are a bunch of special welds like silver to steel, aluminum to other metals, etc that have specially formulated m
by grogenaut 11y ago
@jdietrich, while this is generally true there are a bunch of special welds like silver to steel, aluminum to other metals, etc that have specially formulated multi element fillers so there's chemistry going on there, it's not just steel to steel with a slightly different steel filler. Bronze, copper, it can get interesting.
- nkurz 11y agoI can't tell whether you are making a subtle technical point, or if you are don't understand the terminology the rest of us are using. Commonly defined, welding involves melting both the base metals, and the joint ends up as strong as the weaker of the two. Soldering and brazing, on the other hand, melt only the filler, and the joint strength is limited by the strength of the filler or its adhesion to one of the metals. When you say "multi element filler", it seems likely you are saying "welding" when we think you should be saying "brazing". True welding of dissimilar metals is sometimes possible, but is not very common, and usually requires some exotic processes most of us are less familiar with: laser, ultrasonic, diffusion, explosion. There's description of some of these here: http://www.totalmateria.com/page.aspx?ID=CheckArticle&site=ktn&NM=152 http://www.totalmateria.com/page.aspx?ID=CheckArticle&site=k...