Tumbling

Tumble finishing, tseem hu ua tumbling los yog rumbling, uas yog ib tug txheej txheem rau smoothing thiab polishing ib tug ntxhib nto ntawm tus me me qhov chaw, ib tug zoo xws li cov txheej txheem hu ua chim, los yog chim xov.

Hlau tumbling yog siv rau burnish, deburr, huv si, vojvoog, de-flash, descale, tshem tawm xeb, polish, brighten, nto harden, npaj qhov chaw rau ntxiv xov, thiab rhuav tshem tuag cast runners.