US Patent Issued to AB Sandvik Coromant on July 8 for "Method of making a tool comprising carbide and steel by brazing" (German, Swedish Inventors)

ALEXANDRIA, Va., July 9 -- United States Patent no. 12,350,752, issued on July 8, was assigned to AB Sandvik Coromant (Sandviken, Sweden).

"Method of making a tool comprising carbide and steel by brazing" was invented by Tim Ulitzka (Dortmund, Germany), Wolfgang Tillmann (Dortmund, Germany) and Leif Dahl (Stockholm).

According to the abstract* released by the U.S. Patent & Trademark Office: "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 pro...