EQUIPMENT AND TECHNOLOGY OF EBW IN FINISHING SMOOTHING AND REPAIR OF REVERSE BEADS OF WELDS OF TUBULAR PRODUCTS

摘要

Given are the hardware and technological solutions for the finishing smoothing and repair of linear reverse beads of weld of up to 1200 mm long inside the position extended tubular products of a rectangular shape using a system of electron beam refraction by 90°. As applied to titanium alloy VT20, the parameters of electron beam finishing smoothing were obtained providing the formation of a smooth transition from base metal to weld, smooth surface of molten metal and prevention of undercuts of up to 0.15 mm depth.