Nheyo yekuchenesa yekuchenesa kwe ultrasonic inonyanya kukonzerwa nekuiswa kwe ultrasonic vibration mumvura yekuchenesa, iyo inokonzera "cavitation" mumvura yekuchenesa. Simba remagetsi rine simba rinogadzirwa ne "cavitation" rinobvisa tsvina yemagetsi uye zvakasiyana-siyana zvakasvibiswa zvakabatanidzwa kune workpiece. Ultrasonic kuchenesa kwete chete ine cavitation mhedzisiro, asi zvakare inoperekedzwa neyakaomesesa yemuviri nemakemikari mhedzisiro.
Iyo inodaidzwa kuti "cavitation" inoreva nzvimbo shoma uye yakaomesesa apo inotsinhanisa ruzha rwekumanikidza kwemafungu e ultrasonic inopararira mumvura. Mune dense state, iyo mvura inoiswa pasi pekumanikidzwa kwakanaka (kunenge mashoma emuchadenga kudzvanywa), ichiri munzvimbo shoma, mvura iri pasi pekunetsekana kana kudzvanywa kwakashata. Kazhinji, mvura ine gasi rakati. Munzvimbo shoma, bubble rinokura uye rinotora zvakawanda Iyo gasi yakaora mumvura; painodzokororwa, mabhubhu anoramba achiderera. Mukati mekuita uku, kufamba kwezvimedu zvemvura kunopesana nechikamu chinodzikira zvishoma nezvishoma bubble radius. Naizvozvo, kana radius yasvika zero, kumhanya kwekufamba kwevazhinji kunofanirwa kuswedera kune infinity. Kana kukurumidza kufamba uku kwakangoerekana kwamira kana bubble ravharwa, simba rekinetic rakaiswa mudiki vhoriyamu rinoburitswa, pamwe rinova simba rekupisa, pamwe rinova simba rekumanikidza. Panguva ino, spherical shock wave inopararira kunze kubva pakati pebubble rakavharwa. Panguva ino, dzvinyiriro izviuru zvemhepo. Kana iyo ultrasonic frequency iri 20KHz, iyi cavitation ichaitika ka20,000 pasekondi. Nokudaro, hazvisi zvakaoma kunzwisisa kuti mafungu e ultrasonic ane simba rekuchenesa rakasimba.
