Qhov tsis txaus ntawm cov rivet dig muag txhais li cas?

Tsis txaus bulging: vim tias lub zog tawg ntawm lub dig muag rivet qis dhau, lub rivet tsis tau riveted tag nrho, thiab qhov tawg ntawm lub dig muag rivet raug txiav tawm, ua rau tsis txaus bulging ntawm lub dig muag rivet. tshwm sim nyob rau hauv ib qho kev ua tsis tiav.

https://www.yukerivet.com/news/how-to-solve-if-there-is-a-penetrating-cavity-left-in-the-riveting-body-after-riveting/