I 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, weldin

I 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...