US Patent Issued to HYUNDAI MOTOR, KIA on March 3 for "Spot welding method for multi-layers and spot welding apparatus using the same" (South Korean Inventor)

ALEXANDRIA, Va., March 3 -- United States Patent no. 12,564,897, issued on March 3, was assigned to HYUNDAI MOTOR COMPANY (Seoul, South Korea) and KIA Corp. (Seoul, South Korea).

"Spot welding method for multi-layers and spot welding apparatus using the same" was invented by Kyu-Hwan Oh (Sokcho-si, South Korea).

According to the abstract* released by the U.S. Patent & Trademark Office: "A welding method and a welding apparatus using the same control heat emission amounts of interfaces of a welding subject to be similar by adjusting cross-sectional areas of two welding tips arranged on both outer facing surfaces of a panel type welding subject, superimposed in multi-layers, to simultaneously form a nugget diameter."

The patent was filed o...