Speaker
Description
The paper presents and discusses an enhanced
version of modeling laser or small-scale induction hardening.
The process is characterized by a rapid cooling rate, reaching
several hundred or over one thousand degrees Celsius per second.
Most heat from the heated spot is transferred through conduction
rather than convection, penetrating deep into the material’s
interior. Consequently, determining the surface hardness based
on the continuous cooling transform (CCT) diagram is challenging. Typically, the cooling curves in the CCT diagram are only
available for rates of around tens of degrees Celsius per second.
To address this issue, the paper introduces a model that utilizes
optimization procedures supplemented by calibration through
specific measurements to estimate the resulting hardness. The
methodology is demonstrated through an illustrative example,
and the obtained results are compared.
