Is it possible to weld cracks in a unibody vehicle?
Successfully welding unibody components requires a knowledge of metallurgy and welding. High strength low allow (HSLA) and Martensitic steels are widely used in modern vehicle construction. Improper welding can easily destroy these metals. Welding must be performed so that heat affect zones do not overlap. Reinforcing the welded areas can also cause stress risers. These can cause future cracking in other areas, due to changes in the flexibility of the repaired member. For all of these reasons, repairing cracks in a unibody should be left to a frame repair and welding specialist.
