Metal tool
AssigneeNihon Shinku Gijutsu Kabushiki Kaisha
InventorRiichi Fukutome
Life of this patent
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Abstract
A tool such as a drill, etc. made of a hard metal, e.g., a cemented carbide, having applied thereto a coating film of a noble metal such as gold, silver, platinum, etc. by means of an ion-plating treatment.
Claims7
A metal tool adapted for drilling holes in resin plates for wire printing, said tool comprising a cemented metal carbide base, and a iron-plated coating film on said base, said coating film being a noble metal selected from the group consisting of gold, silver and platinum, said coating film constituting a means for producing smooth drilled holes in the resin plates with prolonged usage.
A method comprising drilling holes in resin plates for wire printing with a tool formed by ion-plating a coating film on a metal carbide base, said coating film being a noble metal selected from the group consisting of gold, silver, and platinum, said film enabling the production of smooth drilled holes in the resin plates with prolonged usage.
Dependencies are inferred from the claim text.