Non- destructive identification and parameters of cemented and subsequently induction hardened cam layers

Skrbek Břetislav - TU Liberec (Czech Republic)

Series sequence of two surface heat treatment processes. Default low carbon steel suitable for carburizing. The carburization of functional surfaces without volume hardening occurs evenly, regardless of the normal curvature of the surfaces. The subsequent induction hardening (SHD) must also cloud the functional surfaces furtherst away from the inductor.
Hardening (overheating) never leads to a fundamental solidification of the layer. Do you evaluate the layer according to the ISO regulation CHD or SHD? Experiment with evaluating the layers according to CHD+SHD curves. Non-destructive layer thickness measurement using the magnetic point method – regression analysis, limits of applicability. Knowledge.

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