Mig Welding Copper

I might buy some silicon bronze wire to try that.

Mig welding copper.

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. Depending on if you are using tig tungsten inert gas or mig metal inert gas and the thickness of your copper you will need to adjust the ratio of your gas and temperature. It looks kind of yellow. If the copper is thicker you will need to adjust the gas and amp by applying helium and upping the.

It is often necessary to raise the temperature level of the sheet in an area 6 0 to 12 0 in. You can use a mig welder and gun to essentially braze the materials together. 100 de ox copper wire is available but pricey. As a general rule of thumb copper under 2 mm should have argon gas and up to 160 a applied.

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

I ordered a two pound spool just to try it. 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. Using mig equipment and silicon bronze welding wire makes joining copper an easier more repeatable quality process. Safe for our use the mds sheet shows it is 96 copper 2 silicon 1 manganese 1 nickel.

Mig welding was developed in the 1940 s and 60 years later the general principle is still very much the same. The silicon bronze wire heating requirements aren t enough to melt the copper base. 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.