Mecanização da confecção de canais superficiais em peças metálicas por soldagem MIG/MAG

Abstract

It is normal that some industry machinery suffers excessive heating and cooling when operating, which may cause the equipment to fail. There are many approaches used to control the equipment parts temperature. The manufacturing of heating/cooling surface channels can be one of the ways to resolve such a problem. Some manual and semiautomatic welding processes recently were used to this purpose. Preliminary tests performed in LAPROSOLDA show the feasibility of such approach. However, there is a need of high skilled welders to perform this task, thus justifying the use of automatized welding systems, offering reliability, repetitiveness and operational ease. Thus, the objective of this work is a mechanization of the surface channels manufacturing on metal bodies by MIG/MAG welding, replacing the welder by a coordinate table, aiming to control the channel formation robustness. The MIG/MAG welding process was used in the short-circuit mode. After the study of the bibliographical review and familiarization with the equipment of the experimental bench, the use of the coordinate table to make the surface channels was evaluated. The results show that it is feasible to mechanize the manufacturing of heating/cooling surface channels on metal bodies.