Estudo do uso de métodos e ferramentas da qualidade para o controle de cordões de solda em peças no setor automotivo

Abstract

Welding is one of the most important steps in the automotive parts manufacturing process. During welding, defects may occur and, if undetected, can put the product performance in risk. This paper presents a case where the manufacturer uses quality tools for data collection, action targeting, control and determination of the root cause of nonconformity in weld beads produced by MAG welding process on the rear axle of a car. After using methods such as PDCA, 5 whys, Ishikawa, and tools such brainstorm and Pareto Diagram, a problem’s root cause was identified as being the pin of fixation. The root cause was proven with a continuity of analysis, where it shows a non-conformities decrease in the welding beads analyzed.