定義

• Dead Soft.  Annealed until the metal piece is as soft as possible, specifically less than 10 Rockwell hardness. Engraving is done in diestock that is dead soft, dies are machined or hubbed in dead soft state, also a die may be returned to this state to be retouched or re-engraved; it is then tempered to return it to proper hardness for striking. See heat treating.

  excerpted with permission from

  An Encyclopedia of Coin and Medal Technology

  For Artists, Makers, Collectors and Curators

  COMPILED AND WRITTEN BY D. WAYNE JOHNSON

  Roger W. Burdette, Editor

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