Method of making a tool comprising carbide and steel by brazing

US12350752B2 · kind B2 · utility

Assignee

• AB Sandvik Coromant · SE

Inventors

• Tim ULITZKA · Dortmund, DE
• Wolfgang Tillmann · Imst, AT
• Leif Dahl · Åtvidaberg, SE

Key dates

• Filing date: Dec 15, 2021
• Grant date: Jul 8, 2025
• Expiry date: Feb 23, 2042

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C22C29/08
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

A tool includes a cemented carbide part and a maraging steel part, wherein the two parts are joined by brazing. The cemented carbide part has a hard phase embedded in a metallic binder phase matrix. The maraging steel part has a hardness of between 350 and 600 HV1 with a standard deviation between 0 and 20 HV1. A method of making such tool is also provided.