Ba a cire tushen makafin gaba ɗaya ba, menene dalilin karyewar?

1. Ja-ta-ta-ta: Ana cire mandrel na rivet daga jikin rivet gaba ɗaya, kuma karyewar mandrel ɗin ba ta karye ba, tana barin rami mai ratsawa a jikin rivet ɗin bayan an yi rivet ɗin.

2. Burr: Bayan ya yi rivet, burr ɗin karyewar mandrel ɗin zai ratsa wajen ramin rivet ɗin; ko kuma ramin jikin rivet ɗin ya fito da ƙarshen ya fito, yana samar da burr ɗin da ke goge hannun.

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