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US Patent: 7,429,151
Coated Inserts for Wet Milling
Patentee:
Ingemar Hessman (exact or similar names) - Sandviken, Gävleborg County, Sweden

USPTO Classifications:
407/119, 427/249.19, 427/255.391, 427/368, 427/419.2, 427/419.7, 428/156, 428/176, 428/216, 428/325, 428/698, 428/701, 428/702, 51/307, 51/309, 76/44

Tool Categories:
metalworking tools : machinist tools : carbide inserts and holders

Assignees:
Sandvik Intellectual Property, AB - Sandviken, Gävleborg County, Sweden

Manufacturer:
Not known to have been produced

Witnesses:
Unknown

Patent Dates:
Applied: Oct. 31, 2005
Granted: Sep. 30, 2008

Patent Pictures:
USPTO (New site tip)
Google Patents
Report data errors or omissions to steward Joel Havens
Description:
Abstract:

Coated milling inserts particularly useful for milling of highly alloyed grey cast iron with or without cast skin under wet conditions at preferably rather high cutting speeds and milling of nodular cast iron and compacted graphite iron with or without cast skin under wet conditions at moderate cutting speeds are disclosed. The inserts are characterized by a WC--Co cemented carbide with a low content of cubic carbides and a highly W-alloyed binder phase and a coating including an inner layer of TiC.sub.xN.sub.y with columnar grains followed by a layer of .kappa.-Al.sub.2O.sub.3 and a top layer of TiN.

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