Checking the manufacture of cold formed parts

During forming, work hardening occurs in the product as an additional benefit, but if the semi-finished product has been welded, then cracks can arise in the regions of the welded seams during the forming process, causing scrap.

During forming, work hardening occurs in the product as an additional benefit, but if the semi-finished product has been welded, then cracks can arise in the regions of the welded seams during the forming process, causing scrap.
Inductive methods for finding this type of crack are not well suited, since they can only detect small cracks and complete sensor arrays must be set up to ensure adequate coverage of possible crack positions.