Ukukhetha i-twist drill bit efanelekileyo kwiprojekthi yakho kubandakanya ukuqonda izinto ezintathu ezibalulekileyo: izinto ezisetyenziswayo, ukugquma, kunye neempawu zejometri. Ngayinye kwezi zinto idlala indima ebalulekileyo ekusebenzeni nasekuqineni kwe-drill bit. Nantsi indlela yokwenza isigqibo esinolwazi.
Izinto eziphathekayo
1. Intsimbi Ekhawulezayo (i-HSS):
I-High-Speed Steel (HSS) ibisoloko ibalulekile kwizixhobo zokusika kangangeminyaka engaphezu kwekhulu, ixatyiswa ngokusetyenziswa kwayo ngokubanzi kunye nokufikeleleka kwayo. Ii-HSS drill bits zaziwa ngokuguquguquka kwazo, zisebenza kakuhle kwii-drill zesandla kunye namaqonga azinzileyo afana nee-drill press. Inzuzo ephambili ye-HSS kukukwazi kwayo ukulola kwakhona, okuphucula ubude be-drill bits kwaye kuyenza ibe lukhetho olungabizi kakhulu kwizixhobo ze-lathe. Ngaphezu koko, i-HSS ineemigangatho ezahlukeneyo, nganye ineenxalenye ezahlukeneyo zezinto ezisisiseko ukujongana neemfuno ezithile zokusika. Olu hlobo lweemigangatho zentsimbi longeza ekuziqhelaniseni ne-HSS, okwenza ibe yinxalenye eguquguqukayo nebalulekileyo kwimisebenzi eyahlukeneyo yoomatshini.
2. I-Cobalt HSS (i-HSSE okanye i-HSSCO):
Xa kuthelekiswa ne-HSS yendabuko, iCobalt HSS ibonisa ubulukhuni obuphezulu kunye nokunyamezela ubushushu. Olu phuculo kwiipropati lukhokelela ekuphuculeni kakhulu ukuxhathisa ukurhawuzelelwa, okwenza ii-HSSE drill bits zihlale ixesha elide kwaye zisebenze kakuhle. Ukufakwa kwe-cobalt kwi-HSSE akuncedi nje kuphela ekunyuseni ukuxhathisa ukurhawuzelelwa kodwa kuphucula nobomi bayo bonke. Njenge-HSS eqhelekileyo, ii-HSSE bits zigcina inzuzo yokuba ziphinde zilolwe, nto leyo eyandisa ubomi bazo obusebenzisekayo. Ubukho be-cobalt kwi-HSSE benza ezi bits zifaneleke ngakumbi kwimisebenzi yokugrumba enzima apho ukuqina kunye nokumelana nokurhawuzelelwa kubalulekile.
3. Ikhabhayithi:
I-Carbide yi-metal matrix composite, eyenziwe kakhulu nge-tungsten carbide eneentlobo ngeentlobo zokubopha. Idlula kakhulu i-HSS ngobunzima, ukunyamezela ubushushu, kunye nokumelana nokukrala. Nangona ibiza kakhulu, izixhobo ze-carbide zibalaseleyo ngobomi kunye nesantya somatshini. Zifuna izixhobo ezikhethekileyo zokulola kwakhona.
Ukwaleka
Iingubo zokubhola zahlukile kakhulu kwaye zikhethwa ngokusekelwe kwisicelo. Nantsi ingcaciso emfutshane ngezinye zeengubo eziqhelekileyo:
1. Ayigqunywanga (Ikhanya):
Ngowona mbala uqhelekileyo kwiibhithi zokubhola ze-HSS. Ilungele izinto ezithambileyo ezifana nee-alloys ze-aluminium kunye nentsimbi enekhabhoni ephantsi, izixhobo ezingagqunywanga zezona zingabizi kakhulu.
2. Ukwaleka kwe-Oxide emnyama:
Ibonelela ngokuthambisa okungcono kunye nokumelana nobushushu kunezixhobo ezingagqunywanga, nto leyo ephucula ubomi bayo ngaphezu kwe-50%.
3. Ukwaleka kweTitanium Nitride (TiN):
Iibhithi zokubhola ezigqunywe ngeTitanium zisebenza kakuhle kwiimeko ezininzi zokusetyenziswa ngenxa yeempawu zazo zokusebenza ezizodwa. Okokuqala, Yonyusa ubulukhuni kunye nokumelana nokukrala ngokusebenzisa i-coating, ivumela ibhithi ukuba ihlale ibukhali ngelixa igqobhoza kwizinto eziqinileyo, kwaye inika ubomi benkonzo obude. Ezi bithi zinciphisa ukungqubana kunye nokwakheka kobushushu, zonyusa ukusebenza kakuhle kokusika ngelixa zikhusela ibhithi ekutshiseni kakhulu. Iibhithi ezigqunywe ngeTitanium zifanelekile ukusetyenziswa kwizinto ezininzi, ezifana nentsimbi engagqwaliyo, i-aluminium kunye nomthi, nto leyo eyenza ukuba zilungele ukusetyenziswa kobunjineli kunye nokusetyenziswa kwekhaya. Ukongeza, ezi bithi zingena ngokukhawuleza kwaye zicocekile kwizixhobo, zibonelela ngomphezulu wokusika ococekileyo. Ngelixa ii-drill ezigqunywe ngeTitanium zinokubiza ngaphezulu kunee-drill eziqhelekileyo, ukusebenza kwazo okuphezulu kunye nobomi obude kuzenza zibe yimbuyekezo entle kutyalo-mali kwizicelo ezifuna ukumelana nokukrala okuphezulu kunye nokusika ngokuchanekileyo.
4. Ukwaleka kweAluminiyam Titanium Nitride (AlTiN):
Okokuqala, ii-AlTiN coatings ziyakwazi ukumelana nobushushu kakhulu, nto leyo ebenza bakwazi ukugqwesa ekusikeni nasekusebenzeni ii-alloys ezinobushushu obuphezulu ngesantya esiphezulu. Okwesibini, olu coating luphucula kakhulu ukumelana nokukrweleka kwaye lwandisa ubomi bezixhobo, ingakumbi xa kusetyenziswa izinto eziqinileyo ezifana nentsimbi engatyiwayo, ii-titanium alloys kunye nee-alloys ezisekelwe kwi-nickel. Ukongeza, i-AlTiN coating inciphisa ukungqubana phakathi kwe-drill bit kunye ne-workpiece, iphucula ukusebenza kakuhle kwe-machining kwaye inceda ekufezekiseni umphezulu wokusika ogudileyo. Ikwanayo nokumelana okuhle kwe-oxidation kunye nozinzo lweekhemikhali, nto leyo evumela ukuba igcine ukusebenza kwiindawo zokusebenza ezinzima. Kuzo zonke, ii-drill ezine-AlTiN coating zilungele ukusetyenziswa kwe-machining ngesantya esiphezulu, ngokuchanekileyo, kwaye zilungele ngokukodwa ukuphatha izinto eziqinileyo ezibangela umngeni kwii-drill zesiqhelo.
Iimpawu zeJiyometri
1. Ubude:
Umlinganiselo wobude nobubanzi uchaphazela ukuqina. Ukukhetha i-drill bit enobude obaneleyo be-flute ukuze kukhutshwe iitship kunye ne-overhang encinci kunokuphucula ukuqina kunye nobomi besixhobo. Ubude be-flute obungonelanga bunokonakalisa i-bit. Kukho imigangatho eyahlukeneyo yobude onokukhetha kuyo kwimarike. Eminye ubude obuqhelekileyo yi-Jobber, stubby, DIN 340, DIN 338, njl.
2. I-engile yeNcam yokuDrila:
I-engile ye-118° iqhelekile kwiintsimbi ezithambileyo ezifana nentsimbi enekhabhoni ephantsi kunye ne-aluminium. Ngokwesiqhelo ayinalo ikhono lokuzibeka phakathi, ifuna umngxuma wokuhlola. I-engile ye-135°, enesici sayo sokuzibeka phakathi, isusa imfuneko yomngxuma owahlukileyo wokuzibeka phakathi, nto leyo egcina ixesha elininzi.
Ukuqukumbela, ukukhetha i-drill bit ejijekileyo efanelekileyo kubandakanya ukulinganisela iimfuno zezinto ezigrunjwayo, ixesha elifunekayo kunye nokusebenza kwe-bit, kunye neemfuno ezithile zeprojekthi yakho. Ukuqonda ezi zinto kuya kuqinisekisa ukuba ukhetha i-drill bit esebenza kakuhle nefanelekileyo kwiimfuno zakho.
Ixesha leposi: Jan-10-2024