patent/US-4359335-A

http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4359335-A

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filingDate	1980-06-05^^<http://www.w3.org/2001/XMLSchema#date>
grantDate	1982-11-16^^<http://www.w3.org/2001/XMLSchema#date>
inventor	http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_390a9ff6ccc6ebbf5567c158ce80582f
publicationDate	1982-11-16^^<http://www.w3.org/2001/XMLSchema#date>
publicationNumber	US-4359335-A
titleOfInvention	Method of fabrication of rock bit inserts of tungsten carbide (WC) and cobalt (Co) with cutting surface wear pad of relative hardness and body portion of relative toughness sintered as an integral composite
abstract	A method of fabricating a rock bit insert which has improved wear characteristics is disclosed. Selected surfaces of the insert are implanted with a harder grade of tungsten carbide and sintered thereto. The special insert then would find application in the gage row of, for example, a roller cone rock bit.
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Incoming Links

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