Global Patent Index - EP 1043416 A2

EP 1043416 A2 2000-10-11 - Cemented carbide insert

Title (en)

Cemented carbide insert

Title (de)

Sinterkarbideinsatz

Title (fr)

Plaquette de carbure frittée

Publication

EP 1043416 A2 (EN)

Application

EP 00106692 A

Priority

SE 9901243 A

Abstract (en)

The present invention relates to a cutting tool insert for machining of steel comprising a cemented carbide body and a coating. The cemented carbide body comprises WC, 5-12 wt-% Co and 3-11 wt-% of cubic carbides of metals Ta, Ti and W. The amount of Nb is below 0.1 wt-% and the ratio Ta/Ti is 1,0-4,0. The Co-binder phase is highly alloyed with W with a CW-ratio of 0,75-0,95 and, finally, the cemented carbide body has a binder phase enriched and essentially gamma phase free surface zone of a thickness of 5-50 mu m. <IMAGE>

IPC 1-7 (main, further and additional classification)

C22C 29/08

IPC 8 full level (invention and additional information)

B23B 27/14 (2006.01); B22F 3/10 (2006.01); B22F 3/24 (2006.01); B23P 15/28 (2006.01); C22C 1/05 (2006.01); C22C 29/08 (2006.01); C23C 16/36 (2006.01); C23C 16/40 (2006.01); C23C 30/00 (2006.01)

CPC (invention and additional information)

C23C 30/005 (2013.01); C22C 29/08 (2013.01); B22F 2003/247 (2013.01); B22F 2005/001 (2013.01); B22F 2998/00 (2013.01); Y10T 428/24802 (2013.01); Y10T 428/24975 (2013.01); Y10T 428/252 (2013.01); Y10T 428/265 (2013.01)

Combination set (CPC)

B22F 2998/00 + B22F 2207/03

Designated contracting state (EPC)

AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

EPO simple patent family

EP 1043416 A2 20001011; EP 1043416 A3 20020814; EP 1043416 B1 20040915; AT 276379 T 20041015; DE 60013675 D1 20041021; DE 60013675 T2 20050210; JP 2000334608 A 20001205; SE 519828 C2 20030415; SE 9901243 D0 19990408; SE 9901243 L 20001009; US RE39893 E 20071023

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