ALEXANDRIA, Va., Jan. 13 -- United States Patent no. 12,521,814, issued on Jan. 13.
"Solid state additive method" was invented by Dawei Guo (Macau), Wenxiao Li (Suzhou, China), Zhixiong Zhu (Suzhou, China), Xiaoxia Xu (Suzhou, China), Hu Wang (Suzhou, China), Guoshun Yang (Suzhou, China), Chitat Kwok (Macau) and Lapmou Tam (Macau).
According to the abstract* released by the U.S. Patent & Trademark Office: "A solid state additive method includes: disposing a round consumable rod in a hollow stirring tool; based on a coating layer height, setting a gap between a bottom surface of the hollow stirring tool and a base surface; driving the hollow stirring tool to rotate at a first rotation speed; driving the consumable rod to rotate at a second...