Different welding methods have different welding processes. Welding process welders pieces of material, grades,

chemical composition, weldment structure type, welding performance requirements to determine. First to determine the

welding method, such as manual arc welding, submerged arc Welding Electrodes , gas tungsten arc welding, MIG

welding, etc., many Types Of  Welding Material can only be selected depending on the circumstances. To develop the

welding parameters to determine the welding method of the same type of welding parameters, such as manual arc

welding include: electrode model (or grade), diameter, current, voltage, welding power source type, polarity connection,

welding layers, said the number of test methods, and so on.