engleski

MIG arc brazing processes for hot-dip galvanized medium thickness sheets and their quality verification

Steel construction relies on welded structures to provide strength and stability, but when exposed to outdoor conditions, these structures can suffer from corrosion and unsightly defects. To combat these issues, assemblies are typically welded in the black state and hot-dip galvanized afterward to meet harsh corrosion requirements. However, arc brazing is an often overlooked alternative to welding that offers unique advantages, such as joining individual parts in the galvanized state without reducing strength. In this article, the applicability of MIG brazing for hot-dip galvanized structures with a thickness of 3 mm is explored through the validation procedure of three different types of arc: short arc, pulse arc, and hybrid short-circuit based pulse arc. It demonstrates the methodology according to the brazing procedure specification (BPS) for each arc type, providing valuable insights into the potential of arc brazing for steel construction.

MIG brazing, CuSi3Mn, hot-dip galvanized sheet metal, medium-thickness sheet metal, Brazing procedure specification - BPS

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