Indlela yokukhetha i-drill?

Namhlanje, ndiza kwabelana ngendlela yokukhetha i-drill bit ngokusebenzisa iimeko ezintathu ezisisiseko zei-drill bit, ezizi: izinto eziphathekayo, iingubo kunye neempawu zejometri.

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Indlela yokukhetha izinto eziphathekayo ze-drill

Izinto eziphathekayo zinokwahlulwa ngokufanelekileyo zibe ziindidi ezintathu: isinyithi esinesantya esiphezulu, i-cobalt equlethe i-high-speed steel kunye ne-carbide eqinile.

Isantya esiphezulu sentsimbi (HSS):

Intsimbi enesantya esiphezulu okwangoku sesona sixhobo sisetyenziswa kakhulu kwaye sesona sixhobo sokusika. I-drill bit of high-speed steel ingasetyenziselwa kuphela kwi-drill drill ngesandla, kodwa nakwiindawo ezinozinzo olungcono olufana noomatshini bokugaya. Esinye isizathu sobude bentsimbi yesantya esiphezulu sinokuthi isixhobo esenziwe ngesantya esiphezulu sinokuthi sihlanjwe ngokuphindaphindiweyo. Ngenxa yexabiso layo eliphantsi, ayisetyenziselwanga kuphela ukugaya kwi-drill bits, kodwa isetyenziswe ngokubanzi ekuguquleni izixhobo.

I-Cobalt High Speed ​​​​Steel (HSSCO):

I-Cobalt-equkethe i-high-speed steel inobunzima obungcono kunye nobunzima obomvu kune-high-speed steel, kunye nokunyuka kobunzima kubuye kuphucule ukuxhathisa kwayo, kodwa ngexesha elifanayo libingelela inxalenye yobunzima bayo. Ngokufana nentsimbi yesantya esiphezulu: zingasetyenziselwa ukuphucula inani lamaxesha ngokugaya.

 

ICarbide (CARBIDE):

I-carbide ene-cemented yi-metal-based composite material. Phakathi kwazo, i-tungsten carbide isetyenziswa njenge-matrix, kwaye ezinye izinto zezinye izinto zisetyenziswa njenge-binder ukuba ifakwe uthotho lweenkqubo ezintsonkothileyo ezinje ngokucinezela kwe-isostatic eshushu. Xa kuthelekiswa nesinyithi esinesantya esiphezulu ngokubhekiselele kobunzima, ubunzima obomvu, ukuxhathisa ukugqoka, njl., kukho ukuphuculwa okukhulu, kodwa iindleko zezixhobo ze-carbide ezifakwe ngesamente nazo zibiza kakhulu kunentsimbi ephezulu. I-Carbide ineenzuzo ezininzi kunezixhobo zangaphambili zesixhobo ngokubhekiselele kubomi besixhobo kunye nesantya sokucubungula. Ekusileni ngokuphindaphindiweyo izixhobo, izixhobo zokugaya iingcali zifunekayo.

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Indlela yokukhetha i-drill coating

Iingubo zokwaleka zingahlelwa ngokwezi ntlobo zintlanu zilandelayo ngokobubanzi bokusetyenziswa.

Ingagqunywanga:

Iimela ezingagqunywanga zezona zinexabiso eliphantsi kwaye zihlala zisetyenziselwa umatshini wezinto ezithambileyo ezifana neealloyi zealuminiyam kunye nentsimbi ethambileyo.

Ukwalekwa kweoksidi emnyama:

Iingubo ezixutywe nge-oxidized ziyakwazi ukubonelela nge-lubricity engcono kunezixhobo ezingagqunywanga, kwaye zingcono ngokubhekiselele kwi-oxidation kunye nokumelana nobushushu, kwaye kunokunyusa ubomi benkonzo ngaphezu kwe-50%.

Ukugquma kwe-Titanium nitride:

I-Titanium nitride yeyona nto ixhaphakileyo yokugquma kwaye ayifanelekanga ukusetyenzwa kwezixhobo ezinobunzima obuphezulu kunye nobushushu obuphezulu bokusebenza.

Ukugquma kwe-Titanium carbonitride:

I-Titanium carbonitride iphuhliswa kwi-titanium nitride kwaye inobushushu obuphezulu kunye nokumelana nokunxiba, ngokuqhelekileyo imfusa okanye eluhlaza okwesibhakabhaka. Isetyenziselwa ukwenza izixhobo zokusebenza zentsimbi kwindawo yokusebenzela ye-Haas.

IAluminiyam yeNitride yeTitanium yoMgqumo:

I-Aluminium titanium nitride ixhathisa kakhulu kumaqondo okushisa aphezulu kunazo zonke iingubo ezingentla, ngoko ingasetyenziselwa kwiindawo eziphezulu zokusika. Ngokomzekelo, ukucubungula i-superalloys. Ikwafanelekile ukucutshungulwa kwentsimbi kunye nensimbi engenasici, kodwa ngenxa yezinto eziqukethe i-aluminium, ukuphendulwa kweekhemikhali kuya kwenzeka xa kusetyenzwa i-aluminium, ngoko ke ugweme ukusetyenzwa kwezixhobo ezine-aluminium.

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Drill bit geometry

Iimpawu zeJometri zinokwahlulwa zibe ziinxalenye ezi-3 zilandelayo:

Ubude

Umlinganiselo wobude ukuya kwi-diameter ubizwa ngokuba yi-diameter ephindwe kabini, kwaye encinci i-diameter ephindwe kabini, ngcono ukuqina. Ukukhetha i-drill kunye nobude bomphetho ukwenzela nje ukususwa kwe-chip kunye nobude obufutshane obugqithisiweyo kunokuphucula ukuqina ngexesha lomatshini, ngaloo ndlela ukwandisa ubomi benkonzo yesixhobo. Ubude be-blade obungonelanga bunokonakalisa i-drill.

I-angle yencam yobhola

I-angle yencam ye-drill ye-118° yeyona nto ixhaphakileyo kumatshini kwaye isoloko isetyenziselwa iintsimbi ezithambileyo njengentsimbi ethambileyo kunye ne-aluminiyam. Uyilo lwale engile ludla ngokungazicingeli, nto leyo ethetha ukuba akunakuphepheka ukwenza umatshini umngxuma ophakathi kuqala. I-engile yencam ye-135 ° idla ngokuba nomsebenzi wokuzimela. Ekubeni akukho mfuneko yokutshiza umngxuma wokubeka iziko, oku kuya kwenza ukuba kungadingeki ukuba ubhobhoze umngxuma ophakathi ngokwahlukileyo, ngaloo ndlela ulondoloze ixesha elininzi.

I-engile ye-Helix

I-angle ye-helix ye-30 ° yinto efanelekileyo yokukhetha izinto ezininzi. Kodwa kwiindawo ezifuna ukukhutshwa okungcono kwe-chip kunye nomphetho oqinileyo wokusika, i-drill ene-angle encinci ye-helix inokukhethwa. Kwizinto ezinzima kumatshini ezifana nentsimbi engenasici, uyilo olune-angle enkulu ye-helix inokukhethwa ukuhambisa i-torque.