CARBIDE WEAR PROTECTIVE COATING SOLD

Brand	Owner (click to sort)	Address	Description
DURACLAD	CAMCO, INCORPORATED	7030 ARDMORE STREET HOUSTON TX 77054	CARBIDE WEAR PROTECTIVE COATING SOLD AS A COMPONENT OF POWER-OPERATED DRILL BITS FOR THE OIL AND GAS INDUSTRY;DURABLE CLAD;
DURACLAD	NATIONAL OILWELL VARCO, L.P.	7909 Parkwood Circle Drive Houston TX 77036	Carbide wear protective coating sold as a component of power-operated drill bits for the oil and gas industry;DURABLE CLAD;
	Where the owner name is not linked, that owner no longer owns the brand

Technical Examples

A cutting tool insert includes a cemented carbide substrate and a coating. The cemented carbide substrate comprises WC, 4-7 wt % cobalt, 6-9 wt % cubic carbide forming metals from the groups IVB and VB, preferably titanium, tantalum and niobium, with a binder phase enriched surface zone with a thickness of >20 ?m, preferably between 21 and 50 ?m. The coating comprises a first layer adjacent the cemented carbide substrate of Ti(C,N) having a thickness of from about 3 to about 15 ?m, an alumina layer adjacent said first layer having a thickness of from about 3 to about 15 ?m, said alumina layer being composed of ?-Al2O3, a further layer adjacent the alumina layer of a Ti(C,N) or Ti(C,O,N) having a thickness of from about 1 to 10 ?m. The total thickness of the coating being less than 30 ?m, preferably less than 20 ?m. Inserts according to the invention exhibit favourable wear resistance and edge strength when turning steel.