It is often necessary to raise the temperature level of the sheet in an area of 6 0 to 12 0 in.
Welding copper pipe with tig.
If the copper is thicker you will need to adjust the gas and amp by applying helium and upping the.
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.
The oxygen will corrode your weld bead under the heat of tig welding.
As a general rule of thumb copper under 2 mm should have argon gas and up to 160 a applied.
152 4 to 304 8 mm away from the weld.
If you are tig welding copper buy oxygen free copper.
Whereas mig welding requires a preheating of 10 100 c and up to 240 amps of power with argon as its shielding gas.
Some grades of copper have oxygen dissolved in the metal.
For example in welding copper with thickness of 5mm 0 196 inch tig welding requires a preheating of 50 c as well as shielding gas of argon helium and mix up to 300 amps of power.
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.
In the past we have.
Oxygen free copper doesn t have this problem and it takes tig welds beautifully.
Https goo gl frdnss in this episode of tig time wyatt shows you how to weld copper.
Use the proper gas ratio.
Tig welding copper pipes 22 x 1 mm.
Do you know of any videos books cd s on how to tig cooper that is 1 1 2 thick.
виг заваряване на медни тръби 22 х 1мм.