How To Weld Cast Bronze. Also this would be tig brazing and not welding. Make yourself weld steel or aluminum in the beginning or you will play hell later.
This produces a strong joint which is very visible unless dressed and painted. Like I said you get the metal hot and flow in the filler rod. Make yourself weld steel or aluminum in the beginning or you will play hell later.
Bronze is generally reasonably straightforward to weld the main issue being its high thermal conductivity which make the current control you get with TIG very useful.
A typical MIGTIG filler metal would be the 3 silicon alloy specified in EN ISO 24373 SCu 6560 CuSi3Mn1. This produces a strong joint which is very visible unless dressed and painted. Cast iron is used for water pipes machine tool castings transmission housing engine blocks pistons stove castings etc. Heat until the metal sweats then allow the hot spot to melt the filler.