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MIG brazing, EU

MIG brazing, EU

MIG brazing has been introduced as a production process and this entails revised repair methods for garages. Certain welded joints in the car have been replaced with a new type of joint with bronze rod filler metal, so-called MIG brazing. A MIG brazed joint can be recognised by its golden colour.

Warning

Repairs to MIG brazing using conventional welding methods and normal filler material are forbidden. Cracks can arise which can impair performance in a collision.


Panel damage where there is MIG brazing involves a new procedure for repairs. Before the Saab workshops have procured new equipment, damaged cars with MIG brazing must be taken to the closest Opel workshop with MIG brazing equipment. A list of approved MIG brazing equipment is in 1:4 Workshop equipment and in our database IRIS under Service Information - Technical News - Group 8 Body- MIG-Brazing - Opel dealer MIG Brazing equipment. The list in IRIS will be updated regularly and will be found under "What's New?". Where appropriate, where Opel authorised workshops do not have suitable equipment, contact one of the six approved suppliers for support. The list of "MIG- Brazing equipment suppliers" is in our database IRIS under Service Information - Technical News - Group 8 Body- MIG-Brazing.

In all cases 100% pure argon gas must be used and the welding rod must be 1 mm (16-93 180 983).

The appearance of a MIG brazing joint differs compared with a conventional weld joint. However, when welding with low energy the arc is occasionally broken, resulting in stronger spattering and more spray. A good MIG brazing joint must be evenly rounded.

Lap joint:


Butt joint:


MIG brazing emits a significant amount of zinc gas in the molten material and brass is formed, with few or no air holes as a result. As MIG brazing is a soldering process where the plates do not need to be melted together, there is also less risk of burning holes. In the cases where grinding is required the welds are considerably easier to grind.