US Patent Issued to SHANGHAI NAGOYA PRECISION TOOLS on May 20 for "Green body and cutting tool having helical superhard-material rake face" (Chinese Inventor)

ALEXANDRIA, Va., June 16 -- United States Patent no. 12,303,987, issued on May 20, was assigned to SHANGHAI NAGOYA PRECISION TOOLS Co. LTD. (Shanghai).

"Green body and cutting tool having helical superhard-material rake face" was invented by Si-Rui Sun (Shanghai).

According to the abstract* released by the U.S. Patent & Trademark Office: "A green body is provided. The green body is made of a superhard material, is used for being fixed on a matrix so as to be machined into a cutting edge part of a cutter. The green body includes a first side surface and a second side surface. Both the first side surface and the second side surface twist at a set helical angle. After being fixed to the matrix, the green body is machined into an edge part fo...