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Case Hardening or Surface Hardening. Subsequent hardening process for the core is 880-920 ℃, which can be done immediately after carburizing. endstream
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It is less complex than hardening and tempering.
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CASE-HARDENING GEOMETER explains the process and its applications BECAUSE of its low carbon content, ranging between about 0.1 and 0.2 per cent., a mild-steel, unlike a carbon steel, will not harden merely by heating to bright red and quenching in water. trailer
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Carbon is added to the outer surface of the steel, to a depth of approximately 0.03mm.
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The main aim of this process is to make the only external surface of steel hard and inner core soft.
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It is the process of carburisation i.e., saturating the surface layer of steel with carbon, or some other process by which case is hardened and the core remains soft. 0000015974 00000 n
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In case hardening, you change the surface of the metal chemically by introducing a high carbide or nitride content. 0000025301 00000 n
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When heat-treated, the high-carbon surface responds to hardening, and the core toughens. Induction heating is used in a variety of heat treatmentprocesses,suchasannealing,normaliz-ing, surface (case) hardening, through hardening, 0000037122 00000 n
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