Who Requires or Recommends MIG Brazing?
In Europe, MIG brazing has been required or recommended on a widespread basis for several years. In the U.S., it is not as common, at least for now. Here are some examples of vehicle makers in the U.S. that allow or require MIG brazing.
Honda requires MIG brazing when joining 1,500 MPa reinforcements to other strengths of steel where spot welding is not possible due to no panel backside access. This requirement began with the 2013 Honda Accord and is now found on newer Honda/Acura models. Honda specifies two 8 mm holes adjacent to each other when joining 340-980 MPa steel to 1,500 MPa steel. When joining a 270 MPa part to a 1,500 MPa stiffener, a single hole is used.
General Motors Company uses MIG brazed slots to attach upper front rails to the A-pillar on some models. MIG brazing is required for repairs. GMA (MIG) welding may not be used.
Jaguar Land Rover requires MIG brazed slots with 8 mm x 20 mm slots and open butt joints on steel outer body side panels that attach to high-strength steel (HSS) and ultra-high-strength steel (UHSS) parts.
Toyota requires MIG brazing for some non-structural applications such as the trunk area on the Camry since 2007.
Volkswagen specifies MIG brazing as an option to GMA (MIG) welding for both sectioning joints and plug welds along the flange.
Please note that MIG brazing should not be used where it is not specified in the body repair manual, as that would be re-engineering the vehicle.
Related I-CAR Courses