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Only in limited cases can welding errors in MIG welding Basically, three methods of MIG welding are used: • Puddle weld. • Continuous bead welding • Intermittent bead welding Fields of application • Any joins that are MIG welded in production must also be replaced by MIG welds. • Puddle welding may be used in certain cases, if there is insufficient access. • If the overall panel thickness is greater than 3 mm, without correspondingly powerful spot • When dealing with any MIG brazed joints which are present, follow the vehicle-specific repair NOTE: The increased application of heat during Welding repairs can only be carried out properly if • Please note the instructions of the respective welding equipment manufacturer. • The hose assembly must be untwisted. • The core must be free from particles of wire debris. • The gas and current nozzles must be free of slag and scale residue. • Pay attention to the quality of the welding wire and the gas flow rate. • Ensure that the joint surface is perfect. • Prepare a bare metal joint surface. • Maintain the correct gaps (root formation). • Produce a test weld. Plug Weld G468073en 501-25- 58 Body Repairs - General Information 501-25- 58 DESCRIPTION AND OPERATION 201 |