Mig Welding Copper

Silicon bronze is a kind of hybrid mig welding brazing technique.

Mig welding copper.

It is often necessary to raise the temperature level of the sheet in an area 6 0 to 12 0 in. As a general rule of thumb copper under 2 mm should have argon gas and up to 160 a applied. Use the proper gas ratio. Lagging the item being welded with thermal blankets is essential as is the provision of adequate screening from the very powerful tig or mig arc.

You can use a mig welder and gun to essentially braze the materials together. In welding copper sheets the heat is conducted away from the welding zone so rapidly that it is difficult to bring the temperature up to the fusion point. Using mig equipment and silicon bronze welding wire makes joining copper an easier more repeatable quality process. It looks kind of yellow.

100 de ox copper wire is available but pricey. Mig brazing is a welding process that has been around for years and is gaining popularity with professionals and hobbyists alike due to the benefits it can offer especially with silicon bronze filler metal. The silicon bronze wire heating requirements aren t enough to melt the copper base. Mig welding was developed in the 1940 s and 60 years later the general principle is still very much the same.

I ordered a two pound spool just to try it. He said most guys mig welding copper use silicon bronze wire but the color doesn t match. 152 4 to 304 8 mm away from the weld. When welding thick copper with preheats of over 250 c and welding currents of more than 350 amps then the health and safety of the welder and personnel working in the vicinity must be considered.

Mig brazing may not be a familiar process to many but it is no stranger in the welding world. I might buy some silicon bronze wire to try that. Mig welding uses an arc of electricity to create a short circuit between a continuously fed anode the wire fed welding gun and a cathode the metal being welded.