ALEXANDRIA, Va., Sept. 8 -- United States Patent no. 12,728,456, issued on Sept. 8, was assigned to SECO TOOLS AB (Fagersta, Sweden).
"Cutting tool" was invented by Jesper Stjernberg (Fagersta, Sweden).
According to the abstract* released by the U.S. Patent & Trademark Office: "A cutting tool insert has an optimal hardness and high toughness for demanding cutting operations in hardened steel and cast iron. The cutting tool includes a substrate of cemented carbide where the cemented carbide has hard constituents of tungsten carbide (WC) and a (Co) binder phase, chromium (Cr) and at least one additional element from the group: Vanadium (V), Niobium (Nb), Molybdenum (Mo) and Iron (Fe). The cemented carbide further has a Co-content of 3.50-4....