For firing current between the the moving arm of the gun and the fixed arm
Mainly In spot welding & resistance welding two type welding machines are used :- 1. Air Cooled & 2. water Cooled.
Arc. It's where electrical resistance is used to create the heat for the welding process.
Resistance welding plants are used in fence manufacturing.
Exothermic Welding is used for earth mat conductors
which oil use for arc welding machine
Mainly In spot welding & resistance welding two type welding machines are used :- 1. Air Cooled & 2. water Cooled.
Yes, resistance welding is used in production welding. It is used extensively in the automotive industry.
in arc welding only heat is used to weld metal. but in resistance welding pressure will also be used along with heat.
Arc. It's where electrical resistance is used to create the heat for the welding process.
Applications of Thyristor(SCR): it is used for temperature control of furnace, in resistance welding as line contactor and in heat control, in electronic ignition of automobiles, in poly phase rectifiers and inverters and in choppers etc...
Resistance welding plants are used in fence manufacturing.
Exothermic Welding is used for earth mat conductors
which oil use for arc welding machine
For welding 8 mm thickness metals, common methods include MIG (Metal Inert Gas) welding, TIG (Tungsten Inert Gas) welding, and stick welding (SMAW - Shielded Metal Arc Welding). The choice depends on the type of metal and specific requirements.
Steel is such a commonly used metal that almost any welding machine can accommodate it. Some are better than others though. Steel is usually welded with either sick welding, or wire welding (gas shielded or flux core)
Dc welding can be used for non consumable electrodes with consumable electrode heat is transferred from electrode to work by molten metal. Ac welding is desirable for aluminum and magnesium, because it helps break up oxides AC is more stable than Dc.
I would say that SMAW (stick) is still the most widely used process. The GMAW (mig) process has gained a wide acceptance in construction and fabrication and may even have surpassed stick welding in many situations. Unfortunately with mig welding the machine has to be close to the welding site. Dragging a welding lead into and around fabrications is still much easier than moving a mig machine.