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1. (WO2018121997) TOOL

Pub. No.:    WO/2018/121997    International Application No.:    PCT/EP2017/082822
Publication Date: Fri Jul 06 01:59:59 CEST 2018 International Filing Date: Fri Dec 15 00:59:59 CET 2017
IPC: B23B 51/02
B22F 7/06
C22C 29/08
C22C 29/06
C22C 32/00
B28D 1/12
B23D 61/04
B23D 61/02
Applicants: HILTI AKTIENGESELLSCHAFT
Inventors: MOMENI, Siavash
MOSELEY, Steven
GLASER, Arno
HELLEIN, Robert
GIERL-MAYER, Christian
SCHUBERT, Wolf-Dieter
DANNINGER, Herbert
MÜLLER-GRUNZ, Andrea
USELDINGER, Ralph
Title: TOOL
Abstract:
The invention relates to a tool for machining materials, having a main part (4, 34) and one or more blades (6, 38). The main part (4, 34) is made of a low-alloy steel. The socket (17, 39) is welded to the main part (4, 34), and the blade edges (8, 41) consist of a hard metal. The hard metal contains at least 82 vol.% of tungsten carbide and a metal binder made of a cobalt-nickel-based alloy. The hardness of the hard metal is greater than 1350 HV10. The socket (17, 39) consists of a sintered composite, and 40 vol.% to 60 vol.% of the composite is composed of a metal carbide and a metal binder. At least 95 vol.% of the metal binder consists of nickel, and the hardness of the composite is less than 800 HV10.