US Patent Issued to NADEX on Feb. 17 for "Resistance spot welding method of aluminum material, control device of resistance spot welding of aluminum material, and resistance spot welding machine" (Japanese Inventors)

ALEXANDRIA, Va., Feb. 17 -- United States Patent no. 12,551,966, issued on Feb. 17, was assigned to NADEX Co. LTD. (Nagoya, Japan).

"Resistance spot welding method of aluminum material, control device of resistance spot welding of aluminum material, and resistance spot welding machine" was invented by Tsuyoshi Matsumoto (Kanagawa, Japan), Seiji Katayama (Aichi, Japan), Ayaka Mizuno (Aichi, Japan) and Kenji Sahashi (Aichi, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A plurality of aluminum materials overlapped with each other are sandwiched between electrodes for spot welding. After main energization to form a nugget between the aluminum materials sandwiched between the electrodes, pulsation energiza...