Welding Copper Mig. A 4kg roll of copper silicon bronze wire will probably set you back upwards of 160 on top of that you will need a decent machine to run it I had SAF synergic set with a proper program in it so its likely that trying to use a basic welder will not end well. Successful welds can also be made using copper-tin alloys such as Cu-7Sn and Cu-12Sn.
Using MIG equipment and silicon bronze welding wire makes joining copper an easier more repeatable quality process. Ad Find China Manufacturers Of Mig Welding. Two joints were produced first was fillet weld in welding position PB and second was I joint in welding position PA.
It is often necessary to raise the temperature level of the sheet in an area 60 to 120 in.
Welding was done using 4T settings no pedal and argon only was used. The weldability of each copper alloy group by this. Pure argon may be used for TIG welding up to a thickness of some 2mm and for MIG welding up to approximately 5mm - above these thicknesses an argon-helium mixture will give better results with greater heat input and less risk of lack of fusion defects. If you are set on welding with the MIG process you may want to try to make your welds.