Last Updated
：2025/11/21
case harden
（ present singular third-person ）
（ participle present ）
（ participle past ）
（ past ）
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(metallurgy) To impart greater hardness to the surface of a piece of metal.
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case harden
We will case harden the shaft to improve its wear resistance.
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We will case harden the shaft to improve its wear resistance.
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