Iindidi ze-drill bits ezingasetyenziselwaCNC ukomba kunye noomatshini bokusilaziquka ii-twist drills, ii-U drills, ii-drills ezinobundlobongela, kunye ne-core drills.
Ii-twist drills zisetyenziswa ikakhulu kumatshini wokubhola onentloko enye ukwenza iiphaneli ezilula.Ngoku abafane babonwe kubavelisi bebhodi yeesekethe ezinkulu, kwaye ubunzulu babo bokugaya bunokufikelela kumaxesha angama-10 ububanzi be-drill.
Xa i-substrate stack ingekho phezulu, ukusetyenziswa kwemikhono ye-drill kunokuphepha ukuphambuka kokugaya.IUmatshini wokomba weCNCisebenzisa i-cemented carbide fixed shank drill, ebonakaliswe ngokukwazi ukubuyisela ngokuzenzekelayo i-drill.Ukuchaneka kokubeka okuphezulu, akukho mfuneko yokusebenzisa imikhono ye-drill.I-angle enkulu ye-helix, isantya sokususa i-chip ngokukhawuleza, ifanelekile ukusika isantya esiphezulu.Ngaphakathi kobude obupheleleyo be-chip flute, i-diameter ye-drill yi-cone eguquliweyo, kunye ne-friction kunye nodonga lomngxuma ngexesha lokomba luncinci, kwaye umgangatho wokugaya uphezulu.I-drill shank diameters eziqhelekileyo ziyi-3.00mm kunye ne-3.175mm.
Intwana yokomba yokomba wephepha letyhubhu ngokuqhelekileyo isebenzisa i-carbide enesamente, kuba ilaphu leglasi ye-epoxy egqunywe ipleyiti yobhedu yobhedu inxiba isixhobo ngokukhawuleza.I-carbide ebizwa ngokuba yi-cemented carbide yenziwe nge-tungsten carbide powder njenge-matrix kunye ne-cobalt powder njenge-binder ngoxinzelelo kunye ne-sintering.Ngokuqhelekileyo iqulethe i-94% ye-tungsten carbide kunye ne-6% ye-cobalt.Ngenxa yobunzima bayo obuphezulu, i-resistant-resistant-resistant, inamandla athile, kwaye ifanelekile ukusika isantya esiphezulu.
Ubunzima obubi kwaye bubrittle kakhulu.Ukuze kuphuculwe ukusebenza kwe-carbide ene-cemented, abanye basebenzisa umaleko we-5-7 microns of extra-hard titanium carbide (TIC) okanye i-titanium nitride (TIN) kwi-carbide substrate nge-chemical vapor deposition ukuze ibe nobulukhuni obuphezulu.Abanye basebenzisa itekhnoloji yokufakelwa kwe-ion ukufakela i-titanium, initrogen, kunye nekhabhoni kwi-matrix kubunzulu obuthile, nto leyo engaphuculi nje kuphela ubulukhuni kunye nokomelela, kodwa nala malungu ahlonyelweyo angafudukela ngaphakathi xa intwana ye-drill ibuyela emhlabeni.Abanye basebenzisa iindlela zomzimba ukwenza umaleko wefilimu yedayimani phezulu kwei-drill bit, ephucula kakhulu ubunzima kunye nokugqoka ukuchasana kwe-drill bit.Ubunzima kunye namandla e-carbide ene-cemented ayihambelani kuphela nomlinganiselo we-tungsten carbide kunye ne-cobalt, kodwa kunye neengqungquthela zepowder.
Kwiincinci ze-ultra-fine ze-cemented carbide drill bits, ubungakanani obuqhelekileyo be-tungsten carbide phase grains bungaphantsi kwe-1 micron.Olu hlobo lwe-drill alunabunzima obuphezulu kuphela kodwa luphucule amandla oxinzelelo kunye nokuguquguquka.Ukugcina iindleko, iibhithi ezininzi zokubhola ngoku zisebenzisa i-welded shank structure.I-original bit drill yenziwe nge-alloy eqinile iyonke.Ngoku i-drill shank yangasemva yenziwe ngensimbi engenasici, enciphisa kakhulu iindleko.Nangona kunjalo, ngenxa yokusetyenziswa kwezixhobo ezahlukeneyo, ukugxila okuguquguqukayo akulunganga njengobunzima obupheleleyo.I-alloy drill bits, ngakumbi kwiidamitha ezincinci.
Ixesha lokuposa: Dec-13-2021