EP 4385643 A1 20240619 - CUTTING TOOL
Title (en)
CUTTING TOOL
Title (de)
SCHNEIDWERKZEUG
Title (fr)
OUTIL DE COUPE
Publication
Application
Priority
US 202263432181 P 20221213
Abstract (en)
The invention relates to a cutting tool comprising a cutting element; wherein the cutting element is made of a composite material comprising diamond entities embedded in a cemented carbide matrix where the diamond entities are homogeneously distributed throughout the cemented carbide matrix and wherein the composite material comprises 5 - 65 volume % diamond entities and wherein at least 20% of the diamond entities contains pores and/or cracks that are filled with constituent(s) of the cemented carbide matrix. The cutting tool shows improved properties such as toughness and hardness. The invention also relates to a method of making such a composite.
IPC 8 full level
B22F 3/15 (2006.01); B22F 3/23 (2006.01); C22C 26/00 (2006.01); C22C 29/08 (2006.01); B22F 5/00 (2006.01)
CPC (source: EP)
B22F 3/156 (2013.01); B22F 3/23 (2013.01); B22F 9/026 (2013.01); C22C 26/00 (2013.01); C22C 29/08 (2013.01); B22F 2005/001 (2013.01)
Citation (applicant)
- US 7647992 B2 20100119 - FANG ZHIGANG [US], et al
- WO 2009128034 A1 20091022 - ELEMENT SIX PRODUCTION PTY LTD [ZA], et al
- EP 2797851 B1 20190206 - DIAMOND INNOVATIONS INC [US]
Citation (search report)
- [XI] US 2011020163 A1 20110127 - NILEN ROGER WILLIAM NIGEL [ZA]
- [XI] EP 1028171 A1 20000816 - SUMITOMO ELECTRIC INDUSTRIES [JP]
- [XI] EP 1231288 A1 20020814 - SUMITOMO ELECTRIC INDUSTRIES [JP]
- [XI] US 2011226532 A1 20110922 - JONKER CORNELIS ROELOF [ZA], et al
- [XI] US 2013213721 A1 20130822 - NILEN ROGER WILLIAM [ZA], et al
- [XI] YEHIA H M ET AL: "Effect of diamond additions on the microstructure, physical and mechanical properties of WC- TiC- Co/Ni Nano-composite", INTERNATIONAL JOURNAL OF REFRACTORY METALS AND HARD MATERIALS, ELSEVIER, AMSTERDAM, NL, vol. 71, 22 November 2017 (2017-11-22), pages 198 - 205, XP085328405, ISSN: 0263-4368, DOI: 10.1016/J.IJRMHM.2017.11.018
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC ME MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA
Designated validation state (EPC)
KH MA MD TN
DOCDB simple family (publication)
DOCDB simple family (application)
EP 23154269 A 20230131