C. M. Oliveira, E. J. Lima II, A. Q. Bracarense, G. G. Dutra, Universidade Federal de Minas Gerais, Belo Horizonte - MG, Brazil
The fabrication process of an industrial product has to follow several outlines and restrictions, which in general aggregates value to the product. Industrial robot simulation allows simulating some critical restrictions, such as tool trajectories and production times. Considering welding as the major application of robots in the industry, it is also one of the most simulated processes. In many cases, however, it is also desired to predict the weld bead geometry obtained in the robotic welding process, to decrease the time spent with welding tests. All the available softwares do not have this kind of tool nor are prepared to develop this type of prediction. This work shows the implementation of routines in a robot simulation tool to determine and draw the geometry of a weld bead during the simulation, considering mathematical models. The mathematical models are obtained from experimental data, allowing the software to simulate the real geometry of the obtained weld bead based on welding parameters. The welding parameters as welding current and voltage are provided by the user. Welding speed is obtained by the program from the trajectory generated by the simulation software. This work also shows the application of the program in the robotic welding of a real automotive part.
Summary: This work shows the implementation of routines in a robot simulation tool to determine and draw the geometry of a weld bead during the simulation, considering mathematical models. The mathematical models are obtained from experimental data, allowing the software to simulate the real geometry of the obtained weld bead.
