The answer is yes. You must first make sure of the following: There is no gas left in the system(probably not since most likely you are fixing a leak) That if for example you are welding a line by the evaporator the valves at the condenser have the manifold gauges connected and open to atmosphere. This way the pressure created by the heat will exhaust out the manifold gauges. If not done so the pressure will back up and out of the hole that you are trying to fix and will not allow the weld to cool and seal. Clean the area to be welded thouroughly Use silver rod to weld AC pipes and not soldering wire. The weld will be much stronger and last longer
TIG uses tungsten in a gun and electricity to melt the material, the user must manually add filler rod. Needs shielding gas Mig uses a gun, but the filler rod flows out of the gun. Electricity flows from tip of wire into material. needs shielding gas except with flux-cored wire. SMAW uses pre fluxed electrodes. electricity flows trough electrode holder, into material when material is scraped by electrode. No shielding gas. Oxy-fuel. Flame welding. Oxygen and a fuel (acetylene, propane, mapp, etc.) are mixed in a torch, ignited, and used to melt material. filler wire is manually added. There are more indepth explanations, and advanced machines, but that is the basics.
Depends on what you are welding, but generaly welds can meet, or even weld on top of a weld.
Theodore Weld
The address of the Weld Public Library is: 25 Church Street, Weld, 04285 0120
The address of the Weld Historical Society is: Po Box 31, Weld, ME 04285-0031
A butt weld is a weld made between two straight cut profiles , a socket , or plug weld is made between a surface and a hole.
WELD - AM - was created in 1956.
The past tense of weld is welded.
Bill Weld's birth name is William Floyd Weld.
Tuesday Weld's birth name is Weld, Susan Ker.
circumfrencial weld is sometimes referred to as Girth weld. its just another term.