Method of making a coated cemented carbide insert

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United States of America Patent

PATENT NO 8187430
APP PUB NO 20110209590A1
SERIAL NO

13105300

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Abstract

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Forming coated cemented carbide inserts, particularly useful in fine turning of super alloys. The inserts are characterized by a composition of a cemented carbide of WC, about 4.0 wt-% Co to about 7.0 wt-% Co, about 0.25 wt-% Cr to 0.50 wt-% Cr, and a coercivity (Hc) of about 28 kA/m to about 38 kA/m. The coating comprises a single (Ti1-xSix)N-layer, where x is between about 0.1 and about 0.25, with a crystal structure of NaCl type and a total thickness between about 0.5 μm and about 2.0 μm with a strong (200)-texture.

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Patent Owner(s)

  • SECO TOOLS AB

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Ahlen, Niklas Soderbarke, SE 5 11
Sjolen, Jacob Fagersta, SE 18 191
Sundstrom, Erik Fagersta, SE 30 305

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