Ukukhetha i-twist drill bit efanele yephrojekthi yakho kuhlanganisa ukuqonda izici ezintathu ezibalulekile: impahla, ukunamathela, nezici zejometri.Ngayinye yalezi zici idlala indima ebalulekile ekusebenzeni nasekuqineni kwe-drill bit.Nakhu ukuhlolisisa indlela yokwenza isinqumo unolwazi.
Okubalulekile
1. High-Speed Steel (HSS):
I-High-Speed Steel (HSS) ibilokhu ibalulekile ekusikeni amathuluzi isikhathi esingaphezu kwekhulu, ihlonishwa ngokusetshenziswa kwayo okubanzi nokufinyeleleka kwayo.Ama-drill bits e-HSS aziwa ngokuguquguquka kwawo, asebenza kahle ngakho kokubili ukubhola ngesandla kanye nezinkundla ezinzile njengemishini yokubhoboza.Inzuzo eyinhloko ye-HSS ikhono layo lokulola kabusha, ithuthukisa ukuphila isikhathi eside kwezingcezu zokubhoboza futhi ikwenze kube ukukhetha okungabizi kakhulu kwamathuluzi e-lathe.Ngaphezu kwalokho, i-HSS inamabanga ahlukene, ngalinye linezingoma ezihlukene zokubhekana nezidingo ezithile zokusika.Lokhu kuhlukahluka kwamabanga ensimbi kwengeza ekuzivumelaniseni nezimo kwe-HSS, okuyenza ibe yingxenye eguquguqukayo nebalulekile emisebenzini yemishini eyahlukahlukene.
2. I-Cobalt HSS (HSSE noma i-HSSCO):
Uma kuqhathaniswa ne-HSS yendabuko, i-Cobalt HSS ibonisa ubulukhuni obuphakeme nokubekezelela ukushisa.Lokhu kuthuthukiswa kwezakhiwo kuholela ekuthuthukisweni kokumelana nokuhuzuka, okwenza izingcezu zokubhoboza ze-HSSE ziqine futhi zisebenze kahle.Ukufakwa kwe-cobalt ku-HSSE akugcini nje ngokufaka isandla ekwandeni kwayo ukumelana nokuhuzuka kodwa futhi kuthuthukisa impilo yayo yonke.Ngokufana ne-HSS evamile, amabhithi e-HSSE agcina inzuzo yokulolaka kabusha, okunweba nakakhulu ukuphila kwawo okusebenzisekayo.Ukuba khona kwe-cobalt ku-HSSE kwenza lezi zingcezu zifaneleke ikakhulukazi imisebenzi yokumba enzima kakhulu lapho ukuqina nokumelana nokugwazeka kubalulekile.
3. I-Carbide:
I-Carbide iyinhlanganisela ye-matrix yensimbi, eyenziwe ngokuyinhloko nge-tungsten carbide enezibophezelo ezihlukahlukene.Idlula kakhulu i-HSS ngobulukhuni, ukubekezelela ukushisa, kanye nokumelana nemihuzuko.Nakuba ebiza kakhulu, amathuluzi e-carbide ahamba phambili esikhathini sokuphila kanye nesivinini somshini.Zidinga okokusebenza okukhethekile ukuze ziphinde zilole.
Ukugqoka
I-Drill bit coatings iyahlukahluka kakhulu futhi ikhethwa ngokusekelwe kuhlelo lokusebenza.Nakhu ukubuka okufushane kwama-coatings ajwayelekile:
1. Okungagqotshiwe (Kukhanya):
Umbala ojwayeleke kakhulu we-HSS drill bits.Ilungele izinto ezithambile ezifana nama-alloys e-aluminium nensimbi ye-carbon ephansi, amathuluzi angamboziwe yiwo athengekayo kakhulu.
2. I-Black oxide Coating:
Ihlinzeka ngokugcotshwa okungcono nokumelana nokushisa kunamathuluzi angamboziwe, ithuthukisa ubude bempilo ngaphezu kuka-50%.
3. I-Titanium Nitride (TiN) Coating:
Izingcezu zokubhola ezinamekwe nge-Titanium zisebenza kahle ezimeni eziningi zohlelo lokusebenza ngenxa yezici zazo ezihlukile zokusebenza.Okokuqala, Ithuthukisa ukuqina nokumelana nemihuzuko ngokusebenzisa i-coating, ivumela i-bit ukuthi ihlale ibukhali ngenkathi ibhoboza izinto eziqinile, futhi inikeza impilo yesevisi ende.Lezi zingcezu zinciphisa ukungqubuzana nokwakheka kokushisa, zikhuphule ukusebenza kahle kokusika ngenkathi zivikela ibhithi ekushiseni ngokweqile.Izingcezu ezifakwe nge-Titanium zilungele ukusetshenziswa ezintweni eziningi, njengensimbi engagqwali, i-aluminium nokhuni, okuzenza zilungele ubunjiniyela kanye nezicelo zasendlini.Ngaphezu kwalokho, lezi zingcezu zingena ezintweni ngokushesha futhi zihlanzeke, zinikeze indawo yokusika ehlanzekile.Nakuba imishini yokubhoboza i-titanium ingase ibize ngaphezu kokuprakthiza okujwayelekile, ukusebenza kahle kwakho okuphezulu nempilo ende kubenza babe nembuyiselo enhle ekutshalweni kwezimali ezinhlelweni ezidinga ukumelana nokuhuzuka okuphezulu kanye nokusikwa okunembile.
4. I-Aluminium Titanium Nitride (AlTiN) Coating:
Okokuqala, izimbotshana ze-AlTiN zimelana nokushisa ngokwedlulele, zizenza ziphumelele ekusikeni ngesivinini esikhulu kanye nomshini wama-alloys asezingeni eliphezulu.Okwesibili, lokhu kunamathela kuthuthukisa kakhulu ukumelana nemihuzuko futhi kwandise ukuphila kwamathuluzi, ikakhulukazi uma kwenziwa izinto eziqinile njengensimbi engagqwali, ama-titanium alloys nama-alloys asekelwe ku-nickel.Ngaphezu kwalokho, ukunamathela kwe-AlTiN kunciphisa ukungqubuzana phakathi kwe-drill bit kanye ne-workpiece, ukuthuthukisa ukusebenza kahle komshini futhi kusize ukufeza indawo yokusika ebushelelezi.Futhi inokumelana okuhle kwe-oxidation kanye nokuzinza kwamakhemikhali, okuyenza ikwazi ukugcina ukusebenza ezindaweni zokusebenza ezinzima.Sekukonke, ama-AlTiN-coated drills alungele izinhlelo zokusebenza zemishini enesivinini esikhulu, enembe kakhulu, futhi afaneleka ngokukhethekile ukuphatha izinto eziqinile ezibeka inselele ekuzibhoboleni okuvamile.
Izici zeJomethrikhi
1. Ubude:
Isilinganiso sobude nobubanzi buthinta ukuqina.Ukukhetha i-drill bit enobude obanele bomtshingo bokukhishwa kwe-chip kanye nokugqwala okuncane kungathuthukisa ukuqina nempilo yamathuluzi.Ubude bomtshingo obanele bungase bulimaze kancane.Kunamazinga ahlukahlukene obude ongawakhetha emakethe.Obunye ubude obujwayelekile iJobber, stubby, DIN 340, DIN 338, njll.
2. I-Engeli Yephoyinti Lokubhola:
I-engeli yephoyinti engu-118° ivamile ezinsimbi ezithambile njengensimbi ye-carbon ephansi ne-aluminium.Ivamise ukuntula ikhono lokuzicabangela, idinga imbobo yokuhlola.I-engeli yephoyinti engu-135°, nesici sayo sokuzibekela eceleni, isusa isidingo sembobo emaphakathi ehlukile, konga isikhathi esibalulekile.
Sengiphetha, ukukhetha i-twist drill bit efanele kuhilela ukulinganisa izimfuneko zezinto ezimbayo, ubude besikhathi obufiswayo kanye nokusebenza kwebhithi, kanye nezidingo ezithile zephrojekthi yakho.Ukuqonda lezi zici kuzoqinisekisa ukuthi ukhetha i-drill bit esebenza kahle kakhulu nesebenza kahle ngokwezidingo zakho.
Isikhathi sokuthumela: Jan-10-2024