Theoretical and experimental study of stationary and progressive induction hardening
Tóm tắt
Theoretical models for stationary and progressive induction hardening are proposed and briefly described. The models, which are valid for cylindrical geometries, have been used for calculation of the power input into the workpiece, temperature fields, phase transformations during heating and cooling, hardness patterns, stress distributions, and the relationships among these different quantities. The input data needed and the influence on the results of variations in input data are discussed on the basis of calculations carried out. In addition, hardening experiments for two standard Swedish steels, SS 2244 (∼AISI 4142) and SS 2258 (∼AISI 52100), Xray measurements of residual stresses and retained austenite, and hardness measurements are described. The computer calculations and the experimental measurements were found to agree well.
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