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  1. Oxford Dictionary

    work-harden

    • v.
      toughen (a metal) as a result of cold-working

    • verb: work-harden, 3rd person present: work-hardens, gerund or present participle: work-hardening, past tense: work-hardened, past participle: work-hardened

    • noun: work-hardening

    • 釋義

    動詞

    • 1. toughen (a metal) as a result of cold-working the hammering has work-hardened the metal inside and out the rest of the strength is generated by work-hardening