Automatic verification of inductive hardening using eddy current and preventive multi-frequency testing

Increasing quality demands, product liability regulations, global competition and tightly specified hardening tolerances have forced manufacturers of induction hardened components to consider special measures in the field of material testing. Induction hardening increasingly includes conducting 100% testing to verify proper material structure and hardness. The installed testing system must be fast, reliable and simple to use. The test technology employed must be effective, simple to implement and economical. The objective is to increase quality (zero defects) through 100% testing and to reduce overall testing costs by automation and reduced destructive testing.