Every commercial welder will tell you that the typical welding system comprises of several elements which include supply of welding power, weld controller, welding torch, as well as tungsten electrode. Commercial welders know that during the gas tungsten arc welding process besides the welding equipment they should also use certain welding parameters. The weld program has specific welding parameters that are developed so that a certain weld quality can be reached.

When a certain parameter in that weld is changed, this leads to a change in the final quality of the weld. In general, the commercial welders write down the welding variables and store them in the memory of the welding equipment.

Sometimes in certain welding applications of great precision and purity, the welders are using specifications with recommended welding parameters that include diameter, base material, weld joint, and also type and purity of the shield gas, as well as arc length, surface condition, tungsten

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