Ukukhetha i-twist drill bit efanele yephrojekthi yakho kuhilela ukuqonda izici ezintathu ezibalulekile: izinto zokwakha, ukumboza, kanye nezici zejometri. Ngayinye yalezi zinto idlala indima ebalulekile ekusebenzeni nasekuqineni kwe-drill bit. Nasi isifinyezo esiseduze sendlela yokwenza isinqumo esinolwazi.
Izinto
1. Insimbi Esheshayo (i-HSS):
Insimbi Esheshayo (i-HSS) ibilokhu ibalulekile ekusikeni amathuluzi iminyaka engaphezu kwekhulu, ibaluleke kakhulu ngokusetshenziswa kwayo okubanzi kanye nokungabizi kakhulu. Ama-drill bits e-HSS aziwa ngokuguquguquka kwawo, enza kahle kokubili ama-drill ngesandla kanye namapulatifomu azinzile njengemishini yokubhoboza. Inzuzo ebalulekile ye-HSS ikhono layo lokulola kabusha, okuthuthukisa ubude be-drill bits futhi okwenza kube ukukhetha okungabizi kakhulu kwamathuluzi e-lathe. Ngaphezu kwalokho, i-HSS inamamaki ahlukene, ngalinye linezinhlanganisela ezahlukene zezinto eziyisisekelo ukuze lihlangabezane nezidingo ezithile zokusika. Lokhu kuhlukahluka kwamamaki ensimbi kunezela ekuzivumelaniseni kwe-HSS, okwenza kube yingxenye eguquguqukayo futhi ebalulekile emisebenzini eyahlukahlukene yokugaya.
2. I-Cobalt HSS (i-HSSE noma i-HSSCO):
Uma kuqhathaniswa ne-HSS yendabuko, i-Cobalt HSS ikhombisa ubulukhuni obuphezulu kanye nokukhuthazela kokushisa. Lokhu kuthuthukiswa kwezakhiwo kuholela ekumelaneni nokuguguleka okuthuthukisiwe kakhulu, okwenza izingcezu zokubhoboza ze-HSSE ziqine futhi zisebenze kahle. Ukufakwa kwe-cobalt ku-HSSE akugcini nje ngokufaka isandla ekumelaneni kwayo nokuguguleka okwandisiwe kodwa futhi kuthuthukisa isikhathi sayo sokuphila. Njenge-HSS ejwayelekile, izingcezu ze-HSSE zigcina inzuzo yokuphinde zilolwe, okwandisa isikhathi sazo sokuphila esisebenzisekayo. Ukuba khona kwe-cobalt ku-HSSE kwenza lezi zingcezu zifaneleke kakhulu emisebenzini yokubhoboza enzima kakhulu lapho ukuqina nokumelana nokuguguleka kubalulekile khona.
3. I-Carbide:
I-Carbide iyinhlanganisela ye-matrix yensimbi, eyenziwe ngokuyinhloko nge-tungsten carbide enezihlanganisi ezahlukahlukene. Idlula kakhulu i-HSS ngokuqina, ukukhuthazela kokushisa, kanye nokumelana nokuguguleka. Nakuba ibiza kakhulu, amathuluzi e-carbide ahamba phambili empilweni kanye nesivinini somshini. Adinga imishini ekhethekile yokulola kabusha.
Ukugqoka
Izembozo ze-drill bit ziyahlukahluka kakhulu futhi zikhethwa ngokusekelwe kuhlelo lokusebenza. Nasi isifinyezo esifushane sezembozo ezivamile:
1. Okungagqokwanga (Okukhanyayo):
Umbala ovame kakhulu wama-HSS drill bits. Ulungele izinto ezithambile njenge-aluminium alloys kanye nensimbi ephansi yekhabhoni, amathuluzi angagqokwanga yiwona angabizi kakhulu.
2. Isimbozo se-Black Oxide:
Inikeza ukuthambisa okungcono kanye nokumelana nokushisa kunamathuluzi angagqokwanga, ithuthukisa isikhathi sokuphila ngamaphesenti angaphezu kuka-50%.
3. Isembozo se-Titanium Nitride (TiN):
Ama-drill bits ambozwe nge-titanium asebenza kahle ezimweni eziningi zokusetshenziswa ngenxa yezici zawo zokusebenza ezihlukile. Okokuqala, athuthukisa ubulukhuni kanye nokumelana nokuguguleka nge-coating, okuvumela i-bit ukuthi ihlale ibukhali ngenkathi ibhoboza izinto eziqinile, futhi inikeze impilo yesevisi ende. Lawa ma-bits anciphisa ukungqubuzana nokwakheka kokushisa, andise ukusebenza kahle kokusika ngenkathi evikela i-bit ekushiseni ngokweqile. Ama-bits ambozwe nge-titanium afanele ukusetshenziswa ezintweni eziningi, njengensimbi engagqwali, i-aluminium kanye nokhuni, okwenza abe afanele ukusetshenziswa kobunjiniyela kanye nezinhlelo zasekhaya. Ngaphezu kwalokho, lawa ma-bits angena ngokushesha futhi ahlanzekile ezintweni, anikeze indawo yokusika ecocekile. Ngenkathi ama-drill ambozwe nge-titanium angabiza ngaphezu kwama-drill avamile, ukusebenza kwawo kahle kanye nokuphila isikhathi eside kuwenza abe yimbuyiselo enhle ekutshalweni kwezimali kwezinhlelo zokusebenza ezidinga ukumelana okukhulu kokuguguleka kanye nokusika okunembile.
4. Isembozo se-Aluminium Titanium Nitride (AlTiN):
Okokuqala, izembozo ze-AlTiN zimelana kakhulu nokushisa, okuzivumela ukuthi ziphumelele ekusikeni nasekusebenzeni ngesivinini esikhulu kwe-alloys ezishisa kakhulu. Okwesibili, lokhu kwembozo kuthuthukisa kakhulu ukumelana nokuguguleka futhi kwandisa impilo yamathuluzi, ikakhulukazi lapho kusetshenziswa izinto eziqinile njengensimbi engagqwali, i-titanium alloys kanye ne-alloys esekelwe ku-nickel. Ngaphezu kwalokho, isembozo se-AlTiN sinciphisa ukungqubuzana phakathi kwe-drill bit kanye ne-workpiece, sithuthukisa ukusebenza kahle kwe-machining futhi sisize ekufinyeleleni indawo yokusika ebushelelezi. Iphinde ibe nokumelana okuhle kwe-oxidation kanye nokuqina kwamakhemikhali, okwenza ikwazi ukugcina ukusebenza ezindaweni zokusebenza ezinzima. Sekukonke, ama-drill ambozwe yi-AlTiN afaneleka kakhulu ekusetshenzisweni kwe-machining ngesivinini esiphezulu, futhi afaneleka kakhulu ekuphatheni izinto eziqinile eziba yinselele kuma-drill avamile.
Izici zeJomethrikhi
1. Ubude:
Isilinganiso sobude nobubanzi sithinta ukuqina. Ukukhetha i-drill bit enobude obanele bombhobho wokukhipha ama-chip kanye ne-overhang encane kungathuthukisa ukuqina nokuphila kwamathuluzi. Ubude bombhobho obunganele bungalimaza i-bit. Kunezindinganiso ezahlukene zobude ongakhetha kuzo emakethe. Ubude obuvamile yi-Jobber, stubby, DIN 340, DIN 338, njll.
2. I-engela ye-Drill Point:
I-engeli engu-118° ivame kakhulu ezinsimbini ezithambile njengensimbi enekhabhoni ephansi kanye ne-aluminium. Ngokuvamile ayinalo ikhono lokuzigxilisa, idinga umgodi wokuhlola. I-engeli engu-135°, enesici sayo sokuzigxilisa, isusa isidingo somgodi ohlukile wokugxilisa, okusindisa isikhathi esiningi.
Ekuphetheni, ukukhetha i-drill bit efanele ejikajikayo kuhilela ukulinganisela izidingo zezinto ezibholwa, isikhathi esifunekayo sokusebenza kwe-bit, kanye nezidingo ezithile zephrojekthi yakho. Ukuqonda lezi zici kuzoqinisekisa ukuthi ukhetha i-drill bit esebenza kahle kakhulu futhi esebenza kahle ngokwezidingo zakho.
Isikhathi sokuthunyelwe: Jan-10-2024