Cutting tool hardening method

C - Chemistry – Metallurgy – 23 – C

Patent

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117/74, 117/81

C23C 14/24 (2006.01) C23C 8/10 (2006.01) C23C 8/14 (2006.01) C23C 14/02 (2006.01) C23C 26/00 (2006.01) C23C 28/00 (2006.01) C23C 30/00 (2006.01)

Patent

CA 1201333

CUTTING TOOL HARDENING METHOD Abstract of the Disclosure A cutting tool hardening method, according to which a tool to be hardened is heated in air to a temperature of 130 to 560°C in order to produce an oxide film 200 to 10,000 .ANG. thick on its surface which is then coated with a wear-resistant material by vacuum deposition.

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