US Patent Issued to JFE STEEL on June 16 for "Element, method of friction element welding, and method of manufacturing friction-element-welded joint" (Japanese Inventors)

ALEXANDRIA, Va., June 16 -- United States Patent no. 12,654,252, issued on June 16, was assigned to JFE STEEL Corp. (Tokyo).

"Element, method of friction element welding, and method of manufacturing friction-element-welded joint" was invented by Naoaki Munemura (Tokyo), Yasuaki Okita (Tokyo), Hiroshi Matsuda (Tokyo) and Yoshiaki Murakami (Tokyo).

According to the abstract* released by the U.S. Patent & Trademark Office: "In performing friction element welding of a sheet set constituted by two or more metal sheets, an element is press penetrated into the sheet set. The element may include a round columnar mandrel; a disc-shaped collar provided at an upper end face of the mandrel; and a conical pin extending from a lower end face of the man...