Nansi indlela yokukhetha kancane ngokusekelwe kumabhithi amathathu ayisisekelo: impahla, ukunamathela nezici zejiyomethri.
01, indlela yokukhetha impahla yokubhoboza
Izinto ezisetshenziswayo zingahlukaniswa cishe zibe izinhlobo ezintathu: insimbi enesivinini esikhulu, insimbi ye-cobalt enesivinini esikhulu ne-carbide eqinile.
Insimbi enesivinini esikhulu (HSS):
Insimbi enesivinini esiphezulu isetshenziswe njengethuluzi lokusika iminyaka engaphezu kwekhulu kusukela ngo-1910. Isetshenziswa kakhulu futhi iyithuluzi lokusika elishibhile elitholakala namuhla.Izingcezu zensimbi ezinesivinini esikhulu zingasetshenziswa kokubili kuma-drill ezandla nasezindaweni ezinzile njengemishini yokubhoboza.Esinye isizathu sokuqina kwensimbi enesivinini esikhulu kungase kube ukuthi amathuluzi ayo, angalolwa ngokuphindaphindiwe, ashibhile ngokwanele ukuba angasetshenziswa nje kuphela njengezinsimbi zokubhoboza kodwa nanjengamathuluzi okujika.
I-Cobalt high speed Steel (HSSE):
Insimbi enesivinini esiphezulu equkethe i-cobalt inobulukhuni obungcono nobulukhuni obubomvu kunensimbi yesivinini esikhulu.Ukwanda kobulukhuni nakho kwandisa ukumelana nokugqoka, kodwa ngesikhathi esifanayo, ukuqina okuthile kuyanikelwa.Njengensimbi enesivinini esikhulu, zingapholishwa ukuze zithuthukise ukusetshenziswa kwazo.
I-CARBIDE:
I-carbide enosimende iyinhlanganisela yesisekelo sensimbi.Phakathi kwazo, i-tungsten carbide isetshenziswa njenge-matrix, kanti ezinye izinto zezinye izinto zisetshenziswa njengezinto zokunamathisela ngochungechunge lwezinqubo eziyinkimbinkimbi ezifana nokucindezela kwe-isostatic okushisayo kokucwilisa.Ebulukhunini, ubulukhuni obubomvu, ukumelana nokugqoka kanye nezinye izici uma kuqhathaniswa nensimbi yesivinini esikhulu, kukhona ukuthuthuka okukhulu, kodwa izindleko zethuluzi le-carbide nazo zibiza kakhulu kunensimbi yesivinini esikhulu.I-carbide enosimende empilweni yamathuluzi kanye nesivinini sokucubungula kunezinto zamathuluzi ezidlule zinezinzuzo eziningi, ethuluzini lokugaya eliphindaphindiwe, isidingo samathuluzi okugaya ochwepheshe.
02, indlela yokukhetha i-bit coating
I-coating ingahlukaniswa ibe yizinhlobo ezi-5 ezilandelayo ngokuya ngebanga lokusetshenziswa.
I-Uncoated: Amathuluzi okusika angafakwanga ashibhile, ngokuvamile asetshenziselwa ukucubungula ingxubevange ye-aluminium, insimbi ye-carbon ephansi nezinye izinto ezithambile.
I-Black oxide coating: i-oxidation coating ingahlinzeka kangcono kune-lubricity yamathuluzi angagcotshiwe, inokumelana ne-oxidation engcono nokumelana nokushisa, futhi ingathuthukisa impilo yesevisi engaphezu kuka-50%.
I-Titanium nitride coating: I-Titanium nitride iyinto evame kakhulu yokugqoka, ayifanele ukucubungula ubulukhuni obuphezulu kanye nezinto zokushisa eziphezulu zokucubungula.
I-Titanium carbon nitride coating: I-Titanium carbon nitride ithuthukiswa isuka ku-titanium nitride, inokumelana nezinga lokushisa okuphezulu nokumelana nokugqoka, ngokuvamile okunsomi noma okuluhlaza okwesibhakabhaka.Isetshenziswa endaweni yokusebenzela ye-Haas ukwenza izinsimbi ezisansimbi.
I-Aluminium nitride titanium coating: ukumboza i-aluminium nitride titanium kunakho konke okungenhla ukumelana nokushisa okuphezulu, ngakho-ke kungasetshenziswa ezimeni zokusika eziphakeme.Njengokucubungula ama-superalloys.Ibuye ifanele ukucutshungulwa kwensimbi nensimbi engagqwali, kodwa ngenxa yokuthi iqukethe izakhi ze-aluminium, ukusabela kwamakhemikhali kuzokwenzeka ekusetshenzisweni kwe-aluminium, ngakho-ke kuyadingeka ukugwema ukucutshungulwa kwezinto eziqukethe i-aluminium.
Ngokuvamile, i-cobalt bearing drill ene-titanium carbonitride noma i-titanium nitride coating iyisixazululo esinomnotho kakhulu.
03. Izici zeJiyomethri ze-drill bit
Izici zeJomethri zingahlukaniswa zibe izingxenye ezintathu ezilandelayo:
Ubude
Isilinganiso sobude nobubanzi sibizwa ngokuthi ukuphindaphindeka kwe-diameter, kanti uma ububanzi buncane, kuba ngcono ukuqina.Ukukhetha kancane ngobude obulungile bonqenqema bokukhishwa kwe-chip kanye nobude obufushane kakhulu obuphezulu kungathuthukisa ukuqina komshini, ngaleyo ndlela kwandise impilo yamathuluzi.Ubude bonqenqema obunganele kungenzeka bulimaze i-drill bit.
I-Engeli yethiphu yokubhoboza
I-Engeli yephoyinti yokubhoboza engu-118° cishe iyona evame kakhulu ekwenzeni imishini futhi ivame ukusetshenziselwa izinsimbi ezithambile njengensimbi emnene ne-aluminium.Lo mklamo we-engeli ngokuvamile awuzimisi wena, okusho ukuthi imbobo emaphakathi kufanele nakanjani yenziwe ngomshini kuqala.I-Engeli yethiphu yokubhoboza engu-135° ivamise ukuzicabangela yona, okonga isikhathi esiningi ngokususa isidingo sokucubungula imbobo eyodwa emaphakathi.
I-Spiral Angle
I-Angle engu-30° spiral iyisinqumo esihle ezintweni eziningi.Kodwa-ke, ezindaweni lapho ama-cuttings asuswa kangcono futhi imiphetho yokusika inamandla, ingakhethwa kancane nge-Angle Evunguzayo.Ngezinto ezisebenza kanzima njengensimbi engagqwali, idizayini ene-engeli ezungezayo ingasetshenziswa ukudlulisa i-torque.
Isikhathi sokuthumela: Sep-01-2022