Mig brazing is becoming more common in the collision industry due to the advanced high strength steel materials that are being used in vehicles today. Putting too much heat to ultra high strength steel will destroy the strength of the metal. In a situation such as this video it could cause the car to not react the same if they were to get T-boned hard in the side. The side airbag timing etc. is designed to react with the correct strength of the rocker panel reinforcement. If you alter the streng