Ungayikhetha kanjani i-drill?

Namuhla, ngizokwabelana ngokuthi ngingayikhetha kanjani i-drill bit ngokusebenzisa izimo ezintathu eziyisisekelo zebill kancane, okungukuthi: izinto ezibonakalayo, ukuhlanganisa kanye nezimpawu zejometri.

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Ungazikhetha kanjani impahla yokushayela

Izinto ezisetshenziswayo zingahlukaniswa ngezinhlobo ezintathu: insimbi enesivinini esikhulu, i-cobalt equkethe insimbi ephezulu ne-carbide eqinile.

I-Speed ​​Speed ​​Speed ​​(HSS):

Insimbi ephezulu kakhulu njengamanje iyithuluzi elisetshenziswa kakhulu futhi elishibhile kakhulu lamathuluzi. I-drill bit yensimbi enesivinini esiphakeme ingasetshenziswa hhayi kuphela kuma-drill kagesi, kodwa futhi nasezindaweni ezinokuqina okungcono njengemishini yokumba. Esinye isizathu sokuphila isikhathi eside kwensimbi ephezulu kungenzeka ukuthi ithuluzi elenziwe ngensimbi ephezulu kakhulu lingaba yindawo ephindwe kabili. Ngenxa yentengo yayo ephansi, ayisetshenziselwa ukugaya kuphela ku-drill bits, kepha futhi isetshenziswe kabanzi kumathuluzi wokuguqula.

I-Cobalt High Speed ​​Steel (HSSCO):

I-cobalt equkethe i-speed ephezulu ine-hardness engcono nolulukhuni olubomvu kunensimbi ephezulu, futhi ukwanda kobulukhuni nakho kuthuthukisa ukumelana kwayo, kodwa ngasikhathi sinye imihlatshelo yobunzima bayo. Okufanayo ngensimbi ephezulu: zingasetshenziswa ukuthuthukisa inani lezikhathi ngokugaya.

 

Carbide (Carbide):

I-Carbide efakwe ngoCement iyisitatimende se-composite esekwe ngensimbi. Phakathi kwazo, i-tungsten Carbide isetshenziswa njenge-matrix, futhi ezinye izinto zezinto zokwakha zisetshenziswa njenge-binder ezokwenziwa ngochungechunge lwezinqubo eziyinkimbinkimbi ezishisayo ngokucindezela okushisayo. Uma kuqhathaniswa nensimbi esheshayo ngokuya ngobulukhuni, ubulukhuni obubomvu, ukugqoka okubomvu, njll., Kukhona ukuthuthuka okukhulu, kepha izindleko zamathuluzi we-carbide ashibhile abiza kakhulu kunensimbi ephezulu kakhulu. I-Carbide inezinzuzo eziningi ukwedlula izinto zamathuluzi ezedlule ngokuya nge-Tool Life and Processing Speed. Ekugayeni okuphindaphindiwe kwamathuluzi, kuyadingeka amathuluzi okugaya ochwepheshe.

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Ungayikhetha kanjani i-drill coating

Ama-Coatings angahlukaniswa ngokulinganayo ezinhlotsheni ezinhlanu ezilandelayo ngokuya ngobubanzi bokusebenzisa.

Ungamiswa:

Imimese engavikelekile ingabi kakhulu futhi imvamisa isetshenziselwa ukwenza imishini yezinto ezithambile njenge-aluminium alloys nensimbi emnene.

I-Black Oxide Coating:

Izambatho ezihlanganisiwe zinganikeza amathuluzi angcono kunamathuluzi angacacisiwe, futhi kungcono futhi ngokuya nge-oxidation kanye nokumelana nokushisa, futhi kungakhulisa impilo yenkonzo ngaphezulu kwama-50%.

Titanium nitride coatide:

I-Titanium NITRIDE iyizinto ezivame kakhulu zokuhlanganisa izinhlanganisela futhi ayilungele ukucubungula izinto ezinobulukhuni obuphezulu kanye nokushisa okuphezulu okuphezulu.

Titanium carbonitrid coating:

I-Titanium Carbonitride yathuthukiswa kusuka kuTitanium Nitride futhi inokushisa okuphezulu okuphezulu nokuvimbela ukumelana, imvamisa kuphuzi. Kusetshenziselwa ukwenza umshini we-iron wensimbi ku-haas workshop.

Aluminium nitride titanium coatium:

I-Aluminium titanium nitride imelana kakhulu namazinga okushisa aphezulu kunawo wonke amagqoko angenhla, ngakho-ke ingasetshenziswa ezindaweni eziphakeme zokusika. Isibonelo, ukucubungula ama-superlloys. Ilungele futhi ukucutshungulwa kwensimbi nensimbi engenacala, kepha ngenxa yezinto eziqukethe i-aluminium, ukusabela kwamakhemikhali kuzovela lapho kucubungula i-aluminium, ngakho-ke gwema ukucubungula izinto eziqukethe izinto ze-aluminium.

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Drill bit geometry

Izici zejometri zingahlukaniswa izingxenye ezi-3 ezilandelayo:

Ubude

Isilinganiso sobude kububanzi sibizwa ngokuthi ububanzi obuphindwe kabili, futhi elincane ubukhulu, okungcono ukuqina. Ukukhetha i-drill nobude obunqenqemeni nje bokususwa kwe-chip kanye nobude obuncane be-overhang kungathuthukisa ubulukhuni ngesikhathi semishini, ngaleyo ndlela kwandise impilo yenkonzo yethuluzi. Ubude be-blader anganele kungenzeka bulimaze ukumba.

Shayela i-angle ye-Drill

I-angle ye-drill tip of 118 ° mhlawumbe ivame kakhulu kumakhenishini futhi ivame ukusetshenziselwa izinsimbi ezithambile njengensimbi emnene ne-aluminium. Idizayini yale angle kangako akuyona nje ukuzibamba, okusho ukuthi akunakugwenywa ukuwuma emlonyeni umgodi wokugxila kuqala. I-engela engu-135 ° Drip I-Angle ivame ukuba nomsebenzi wokuzibamba. Njengoba asikho isidingo sokusebenzisa umgodi ophakathi nendawo, lokhu kuzokwenza kungadingeki ukuthi kudrime umgodi ophakathi nendawo ngokwahlukana, ngaleyo ndlela ugcine isikhathi esiningi.

Helix anglele

I-helix angle ye-30 ° iyisinqumo esihle sezinto eziningi. Kepha ezindaweni ezidinga ukuphuma okungcono kwe-chip kanye nomphetho onamandla wokusika, ukumba nge-angle elincane helix kungakhethwa. Ngezinto ezinzima ukuya ezinhlanzisweni ezifana nensimbi engenasici, umklamo one-angle ekhudlwana ye-helix angakhethwa ukuze adlulise i-torque.