Tig Welding Copper Pipe

Whereas mig welding requires a preheating of 10 100 c and up to 240 amps of power with argon as its shielding gas.

Tig welding copper pipe.

152 4 to 304 8 mm away from the weld. Https goo gl frdnss why would you weld copper pipes versus soldering copper pipes pizzawelder well p. If the copper is thicker you will need to adjust the gas and amp by applying helium and upping the. Do you know of any videos books cd s on how to tig cooper that is 1 1 2 thick.

Some grades of copper have oxygen dissolved in the metal. As a general rule of thumb copper under 2 mm should have argon gas and up to 160 a applied. The oxygen will corrode your weld bead under the heat of tig welding. Subscribe for new videos every monday and friday.

I am an experienced 6g pipe welder with certs in both stick and tig. Oxygen free copper doesn t have this problem and it takes tig welds beautifully. 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. If you are tig welding copper buy oxygen free copper.

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. On a large firewater system for an offshore platform orbital welding was able to reduce welding time to one half that of manual welding and cut reject rate from 15 to 5 7 the joint design tolerances must be tightly controlled. This was done using a tig welder with silicon bronze rod. Automatic welding cu ni with orbital pipe welding equipment offers higher production rates and fewer weld defects.

Buy the right copper. Use the proper gas ratio. Now technically this would be classified as tig brazing because the stainless steel has a higher melting point then the silicon bronze filler rod.