US Patent Issued to AECC SHANGHAI COMMERCIAL AIRCRAFT ENGINE MANUFACTURING, AECC COMMERCIAL AIRCRAFT ENGINE on March 11 for "Method for prefabricating air hole defect by means of controlled SLM process" (Chinese Inventors)

ALEXANDRIA, Va., March 12 -- United States Patent no. 12,246,381, issued on March 11, was assigned to AECC SHANGHAI COMMERCIAL AIRCRAFT ENGINE MANUFACTURING Co. LTD. (Shanghai) and AECC COMMERCIAL AIRCRAFT ENGINE Co. LTD (Shanghai).

"Method for prefabricating air hole defect by means of controlled SLM process" was invented by Liming Lei (Shanghai), Yali Li (Shanghai), Yanli He (Shanghai), Xiaohui Chen (Shanghai) and Jun Fu (Shanghai).

According to the abstract* released by the U.S. Patent & Trademark Office: "A method for prefabricating pore defects by controlling a SLM process, including performing laser scanning on a specified metal melt layer (LY) according to a first scan path (P1) and a second scan path. The first scan path (P1) and ...