Gukanda urupapuro rw’icyuma: Ibice by’ibanze, amakopo akuruwe na washeri

Gukanda bihindura ikizingo ibice ku muvuduko w’imashini ikanda. Ikizingo kirambuwe, kikagororwa maze kikinjizwa mu mashini ikanda ifite imbumbiro ikata kandi ikabumba: blanking ikata umuzenguruko, piercing itobora imyobo, forming irahina, drawing ikurura agace kaburinganiye kakaba ikopo. Washeri ni agace kamwe katoborwe hagati. Agakopo k’ibinyobwa ni agace gakaswe mu rupapuro rwa aluminiyumu rukomeye rukoreshejwe ubukonje (akenshi imvange 3104-H19 cyangwa 3004-H19), gakururwa kakaba ikopo ry’umurambararo wa inch eshatu hafi, hanyuma kagasunikwa mu mpeta zinanura kandi zigatuma urukuta ruba ruto. Umupfundikizo wacyo ukandwa ukwawo mu kizingo cy’imvange 5182-H48; imashini ihindura ikora agapfundo ka rivet, igaca umurongo w’aho gufungurira kandi igashyiraho agafatisho.