Applied Physics and Mathematics Annotation << Back OPTIMIZATION OF THE PARAMETERS OF LASER CUTTING AND TANDEM MECHANOCHEMICAL PROCESSING OF INVARA ALLOY SHEET METAL N.E. KONONENKO A technique for processing Invar alloy parts for use in precision instrumentation and engineering by laser cutting and sequential chemical and mechanochemical polishing is proposed. After optimizing the laser cutting parameters, an even cut of the Invar plate was obtained. A composition with an anticorrosive effect has been selected for chemical etching, and the time and temperature of its exposure to the sample have been optimized. During the final mechanical and chemical polishing, the surface specularity and cut roughness of 3.25± 1.25 microns were achieved. Keywords: Mechanical and chemical polishing, Invar, laser cutting, nano abrasive, anti-corrosion treatment. DOI: 10.25791/pfi m.05.2024.1308 Pp. 20-24.