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• No corrosion of the brazed seam. • Low erosion of the zinc coating in the joining area. • Low level of heating and thus little warping. • Easy finishing of the brazed seam. • Good for bridging gaps. NOTE: MIG welds must not be carried out on or smallest amount of brazing solder can result in a MIG brazing requires a new generation of welding Joining techniques Butt joints Description Des cript ion Join areas 1 Profile 2 Full seam 3 The butt joint is a joining technique frequently used Areas that are suitable for the use of the butt joint: • short seam lengths. • highly profiled structures. The edges of the panels to be joined are placed NOTE: The butt joint requires a high degree of Preparation of the joint areas includes: • Sanding the connection areas bare on both sides. • Removal of the zinc layer in the welding area. • Carrying out welding tests on an equivalent sample panel before the actual welding, if • Tack welding in the join area: From the edges to the centre, then check the shape. • Joining new and old parts with a full seam weld. Joggled joint G468073en 501-25- 62 Body Repairs - General Information 501-25- 62 DESCRIPTION AND OPERATION 201 |