US Patent Issued to MAZDA MOTOR on Sept. 9 for "Expulsion detection method in electric resistance welding and apparatus therefor" (Japanese Inventors)

ALEXANDRIA, Va., Sept. 10 -- United States Patent no. 12,409,507, issued on Sept. 9, was assigned to MAZDA MOTOR Corp. (Hiroshima, Japan).

"Expulsion detection method in electric resistance welding and apparatus therefor" was invented by Yasuyuki Tanaka (Hiroshima, Japan), Akira Nawahara (Hiroshima, Japan), Daisuke Nakazaki (Hiroshima, Japan) and Yohei Shoji (Hiroshima, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "In electric resistance welding for energizing a workpiece formed by superimposing plural metal plates, an energization resistance reduction amount between a pair of electrodes pressurizing the workpiece is detected at a specified time interval during each welding process under a specified w...