Development of a multipass welding program for arc welding robots and its application to heavy electrical components

摘要

In welding fabrication of heavy electrical sections which are composed of thick plates and are not mass-produced, ti is not so easy to utilize industrial arc welding robots because of taking a long time for teaching weld lines and welding parameters. It is necessary to simplify teaching operations so that a industrial arc welding robots may be applied to wedling of heary electrical sections.The welding program for multi-pass wedling, which is able to set up the welding parameters for various welding positions (flat, vertical and horizontal) and groove shape of Joints (fillet, single bevel, V, J etc.), has been developed.This multi-pass welding program was built in arc welding robots system and applied to welding fabrication of heavy electrical sections.With this system, the optimum parameters and wire tip positions are set automatically only by inputting welding position, groove shape and its size after teaching the weld line of first pass.As a resultl the efficiency was greatly improved.