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Nowadays quality and efficiency in the process is no longer a question of competition among automakers. Another factor that has been highlighted in the automotive industry and has become a strategic is the sustainability. Processes considered “green” can generate value for the company with less environmental impact, and they are seen favorably by both market and customers. The process to be examined is widely used by automakers to manufacture their bodies in white, the resistant spot welding process. Considering that, this process generates a considerable impact in the environment mainly for the generation of gases, some manufacturers in recent years has replaced it by the clinching process, which also performs the union of sheet metal, but for metal forming. The process of spot welding generates dust, fumes and pollutants gases, which will be transported to the external environment somehow.