ANFIS Model for Robotic Welding Process on a Bus Body Structure

Bus body structure has been widely made in Thailand using MIG welding process while quality is uncertain and inconsistent because of heat accumulation and skill of labor. Presently, robotic welding is utilized to improve efficiency and productivity as well as quality. The robot is interfaced with welding machine by their controllers. Therefore, welding process with proper parameters is controlled by robot routing as well as the heat accumulative can be control by the robotic welding process control. In general, the weld line is inspected by destruction or non-destruction. However, such approach is expensive and time consuming. This paper proposes an effective methodology to predict the weld line stiffness based on the parameters used on the MIG welding robotic process using ANFIS modeling. Collection reference data and expert rules are the major concerned and converted into fuzzy rules.