Magnetic measurements on induction-hardened layers of camshafts in practice

Kouřil Miloslav - Q.I.P. s.r.o. (Czech Republic)

This contribution builds on the results of the lecture „The thickness of hardened layers of camshafts“. Summary of findings. Mathematical models for measuring the thickness of induction hardened layers of camshafts on bearings, intake and exhaust cams, and cylindrical cam faces using the magnetic point method. Brief procedure (intructions) of the inspection. An example of surface hardening quality control of a producktion batch of camshafts by checking the first and last hardened shaft. Developing control over the extreme layer thicknesses at the edges (the ends og the „backs of the thumbs“). Criteria for the reproducibility of the results. Knowledge.

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