Tool

US10583491B2 · kind B2 · utility

Assignee

• Hilti Aktiengesellschaft · LI

Inventors

• Siavash Momeni · Buchs, CH
• Steven Moseley · Bludenz, AT
• Arno Glaser · Schaanwald, LI
• Robert Hellein · Langenlois, AT
• Christian Gierl-Mayer · Wien, AT
• Wolf-Dieter Schubert · Wien, AT
• Herbert Danninger · Wien, AT
• Andrea Müller-Grunz · Differdange, LU
• Ralph Useldinger · Luxembourg, LU

Key dates

• Filing date: Dec 14, 2017
• Grant date: Mar 10, 2020
• Expiry date: Dec 14, 2037

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B28D1/121
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

A tool for machining materials has a main part and one or more blades. The main part is made of a low-alloy steel. The socket is welded to the main part, and the blade edges are made of a hard metal. The hard metal contains at least 82 vol. % of tungsten carbide and a metallic binder made of a cobalt-nickel-based alloy. The hardness of the hard metal is greater than 1350 HV10. The socket has a sintered composite, and 40 vol. % to 60 vol. % of the composite is composed of a metal carbide and a metallic binder. At least 95 vol. % of the metallic binder is made of nickel, and the hardness of the composite is less than 800 HV10.