A hardening depth evaluation technique using eddy current has been developed, which can be applied to a mass production line for destructive (cutting) inspections. Using this technique, changes in the hardness of the induction-hardened structure can be detected based on the changes in magnetic permeability. This technique reduces the thermal effect and improves measurement accuracy through a multi-frequency exciting method and a difference method algorithm.
Development of Hardening Depth Evaluation Technique using Eddy Current – Establishment and Introduction of In-line Hardening Depth Inspection System –
Sae Int. J. Mater. Manf
Sae International Journal of Materials and Manufacturing
SAE World Congress & Exhibition ; 2009
Sae International Journal of Materials and Manufacturing ; 2 , 1 ; 409-415
2009-04-20
7 pages
Aufsatz (Konferenz)
Englisch
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