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Article | REF: M1135 V4

Surface treatments of tool steels

Author: Robert LÉVÊQUE

Publication date: September 10, 2021

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2. Surface induction hardening treatment

Surface induction hardening was the subject of the article [M 1 205] . In this section, we focus on aspects specific to the treatment of tool steels.

The induction heating process is essentially carried out using high-frequency (over 100 kHz) or medium-frequency (over 10 kHz) generators. It enables maximum power densities of the order of 1,000 W.cm -2 to be developed in the surface layer of the parts to be treated, compared with the 25 W.cm -2 of conventional radiant heating. The...

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