Double-Sided Arc Welding Increases Weld Joint Penetration

摘要

Joining of components plays a critical role in determining manufacturing costs and productivity and the quality of finished products. As the primary method for joining metals, welding is practiced in a wide range of industries. Therefore, reducing costs and improving the productivity of welding operations can considerably impact a manufacturer's competitiveness. Welding time and joint preparation are among the most important factors in defermining the cost and productivity of welding. If the desired penetration of the weld pool can be achieved in a single pass, welding speed will be the major factor that determines welding time. When the thickness of the part increases, grooves may have to be machined so that the desired penetration may still be obtained in a single pass. In that case, welding time remains unchanged at the expense of groove preparation. If the thickness of the part further increases, multiple passes may become mandatory and both the welding time and the cost of the joint preparation will significantly increase. However, if the penetration capability is increased so that joint preparation time and multiple passes can be eliminated, the resultant impact on cost and productivity will be quite significant.