Izinhlobo zama-drill bits ezingasetshenziselwaImishini yokugaya neyokugaya i-CNCzihlanganisa ama-twist drill, ama-U drill, ama-drill anodlame, nama-core drill.
Ama-twist drill asetshenziswa kakhulu emshinini wokubhola onekhanda elilodwa ukubhola amaphaneli alula angawodwa. Manje azivamile ukubonakala kubakhiqizi abakhulu bebhodi lesifunda, futhi ukujula kwabo kokumba kungafinyelela izikhathi ezingu-10 ububanzi be-drill.
Lapho isitaki se-substrate singekho phezulu, ukusetshenziswa kwemikhono yokubhoboza kungagwema ukuchezuka kokumba. IUmshini wokumba we-CNCisebenzisa i-carbide fixed shank drill enosimende, ebonakala ngokukwazi ukufaka esikhundleni sokuprakthiza ngokuzenzakalelayo. Ukunemba kokuma okuphezulu, asikho isidingo sokusebenzisa imikhono yokubhoboza. I-engeli enkulu ye-helix, isivinini sokususwa kwe-chip esheshayo, ilungele ukusika ngesivinini esikhulu. Ngaphakathi kobude obugcwele bomtshingo we-chip, ububanzi bokubhoboza buyikhoni ehlanekezelwe, futhi ukungqubuzana nodonga lwembobo ngesikhathi sokumba kuncane, futhi ikhwalithi yokumba iphezulu. Amadayimitha e-drill shank ajwayelekile angu-3.00mm no-3.175mm.
I-drill bit yokumba amashidi eshubhu ngokuvamile isebenzisa i-carbide enosimende, ngoba indwangu yengilazi ye-epoxy ehlanganiswe nepuleti le-copper ye-foil igqoka ithuluzi ngokushesha okukhulu. I-carbide ebizwa ngokuthi i-cemented carbide yenziwe nge-tungsten carbide powder njenge-matrix ne-cobalt powder njenge-binder ngokusebenzisa ingcindezi kanye ne-sintering. Ngokuvamile iqukethe i-94% ye-tungsten carbide ne-cobalt engu-6%. Ngenxa yokuqina kwayo okuphezulu, ayigugi kakhulu, inamandla athile, futhi ifanele ukusika ngesivinini esikhulu.
Ukuqina okungekuhle kanye ne-brittle kakhulu. Ukuze kuthuthukiswe ukusebenza kwe-carbide enosimende, abanye basebenzisa ungqimba lwama-microns angu-5-7 we-extra-hard titanium carbide (TIC) noma i-titanium nitride (TIN) ku-carbide substrate ngokufaka umhwamuko wamakhemikhali ukuze kuyenze ibe nobulukhuni obuPhezulu. Abanye basebenzisa ubuchwepheshe bokufakelwa kwe-ion ukuze bafake i-titanium, i-nitrogen, nekhabhoni ku-matrix ekujuleni okuthile, okungathuthukisi nje kuphela ubulukhuni namandla, kodwa futhi lezi zingxenye ezitshaliwe zingathuthela ngaphakathi lapho i-drill bit iphansi. Abanye basebenzisa izindlela ezingokomzimba ukwenza ungqimba lwefilimu yedayimane phezulu kwei-drill bit, okuthuthukisa kakhulu ubulukhuni nokugqoka ukumelana kwe-drill bit. Ukuqina namandla e-carbide enosimende akuhambisani kuphela nesilinganiso se-tungsten carbide ne-cobalt, kodwa futhi nezinhlayiya ze-powder.
Ngezinhlayiya ezinhle kakhulu zamabhithi okubhola e-carbide enosimende, usayizi omaphakathi wezinhlamvu zesigaba se-tungsten carbide ungaphansi kwe-micron engu-1. Lolu hlobo lokubhola alugcini nje ngokuba nobulukhuni obuphezulu kodwa futhi luthuthukisa amandla okucindezela nokuguquguquka. Ukuze wonge izindleko, ama-drill bits amaningi manje asebenzisa isakhiwo se-shank esishiselwe. I-drill bit yasekuqaleni yenziwe nge-alloy eqinile iyonke. Manje i-drill shank yangemuva yenziwe ngensimbi engagqwali, enciphisa kakhulu izindleko. Kodwa-ke, ngenxa yokusetshenziswa kwezinto ezihlukene, ukugxila okuguquguqukayo akukuhle njengokuqina okuphelele. I-alloy drill bits, ikakhulukazi kumadayamitha amancane.
Isikhathi sokuthumela: Dec-13-2021