Huda shine matakin farko na mai zafibututu mara nauyinakasawa, kuma aikinsa shine ƙwanƙwasa bututun billet ɗin da aka yi sanye da sutura.Saboda sa wani capillary surface lahani ko eccentric (ra'ayi kauri) yana da wuya a kawar ko rage nakasawa tsari, sabili da haka, ingancin perforated capillary yana da matukar muhimmanci tasiri a kan ingancin zafi-birgima sumul karfe bututu.Hanyar matsa lamba bututu hushi, tura Rotary huda da huda.Kauri-walled sumul karfe, yafi amfani a man geology hakowa bututu, petrochemical amfani da fatattaka shambura, tukunyar jirgi shambura, bututu da kuma mota bearings, tarakta, jirgin sama da sauran daidaici tube tsarin, ta masana'antu tsari: zafi birgima sumul karfe tube zagaye.→dumama→uku perforated yi mirgina, mirgina ko extrusion→ware→girman (ko rage) sanyaya→mikewa→tambarin gwajin hydrostatic (ko gwaji).→ajiya.

Hot-birgima sumul karfe ingot simintin gyaran kafa iya halakar da nama, hatsi tace karfe da kuma kawar da lahani microstructure, sabõda haka, karfe m nama inji Properties aka inganta.Wannan haɓakawa ya fi nunawa a cikin shugabanci tare da mirgina shugabanci zuwa wani matsayi a cikin karfe ba isotropic;zuba kafa kumfa, fasa da sako-sako da, za a iya welded a wani babban zafin jiki da kuma matsa lamba.

Bayan zafi-birgima sumul karfe tube zagaye gasa zuwa ta hanyar matsa lamba puncher huda.Gabaɗaya mafi na kowa naushi ne tepered abin nadi punching inji, naushi inji irin high samar yadda ya dace, samfurin ingancin, perforated fadada iya aiki, za a iya sawa iri-iri na karfe.Bayan huɗawa, bututun zagaye ya kasance mai jujjuyawa uku, jujjuyawa ko extrusion.Don matse bututun bayan girman.Girman injin niƙa zuwa rawar mazugi mai sauri mai jujjuyawar mazugi ta hanyar tsinken ƙarfen amfrayo da aka kafa ƙarfe.An ƙaddara bututun diamita ta wurin tsayin diamita na waje mai girman girman niƙa.Bayan daidaita bututu a cikin hasumiya mai sanyaya ta hanyar fesa bututun sanyaya bayan sanyaya, ya zama dole a daidaita.Bayan daidaita bel ɗin jigilar ƙarfe zuwa injin gano ƙarfe (ko gwajin matsa lamba) don gwaji na ciki.Idan bututu na ciki ya tsage, kumfa da sauran batutuwa, za a gano.Bayan zaɓin karfe amma kuma ta hanyar ingantaccen tsarin kula da inganci.Bayan ingancin karfe, fesa fenti akan lamba, girman, lambar tsari da sauransu.By wani crane a cikin sito.