US 11,964,337 B2
NiTi alloy surface cutting process and roughness adjustment method
Bing Wang, Shandong (CN); Zhanqiang Liu, Shandong (CN); Hong Wang, Shandong (CN); Jinfu Zhao, Shandong (CN); Qinghua Song, Shandong (CN); and Yukui Cai, Shandong (CN)
Assigned to SHANDONG UNIVERSITY, Shandong (CN)
Filed by SHANDONG UNIVERSITY, Shandong (CN)
Filed on Apr. 14, 2023, as Appl. No. 18/300,408.
Claims priority of application No. 202210389096.X (CN), filed on Apr. 14, 2022.
Prior Publication US 2023/0330762 A1, Oct. 19, 2023
Int. Cl. B23D 79/00 (2006.01); C22C 19/00 (2006.01); C22F 1/10 (2006.01); C25F 3/14 (2006.01)
CPC B23D 79/00 (2013.01) [C22C 19/007 (2013.01); C22F 1/10 (2013.01); C25F 3/14 (2013.01)] 10 Claims
OG exemplary drawing
 
1. A NiTi alloy surface cutting process, comprising: treating a NiTi alloy at a martensitic transformation temperature to obtain a martensitic single-phase NiTi alloy; removing Ni from the martensitic single-phase NiTi alloy in an electrochemical manner with the martensitic single-phase NiTi alloy as a working electrode so as to obtain a porous surface layer; cleaning, with a distilled water, and placing the martensitic single-phase NiTi alloy having the porous surface layer at the room temperature to restore the martensitic single-phase NiTi alloy to a two-phase state, and then cutting surface material with the porous surface layer.