Sarrafa Kayayyakin Tagulla ta CNC Mai Daidaito: Zaɓin Daraja, Sarrafa Cacar Ƙera & Shawarwari a Wurin Aiki
Idan ka taɓa gudanar da babban aikin bronze na aluminium C95400 a yammacin Juma'a, ka san cewa bronze ba kawai “ƙarfe mai launi rawaya mai laushi” ba ne. Ɗaya kuskure wajen zaɓin kusurwar rake ko matsin lamba na mai sanyaya, sai ka tsinci kanka cikin tsanantaccen ƙarfafawar aiki, girgiza, da taruwar ƙaramin walda na tagulla a kan shigarwar carbide ɗinka.
Bronze muhimmin kayan aiki ne da ba za a iya maye gurbinsa ba a kayan aikin jiragen ruwa, famfunan hydraulic, manyan na'urorin masana'antu, da kayan aikin filin mai. Yana ba da juriya ga lalacewa da ba ta da misali, kyakkyawar juriya ga mannewar ƙarfe, da kuma babban juriya ga tsatsa. Sai dai, juyar da ƙarfen bronze na farko da aka zuba ko sandar bronze zuwa sassa masu ƙuntataccen daidaito da ƙananan ƙimar Ra na buƙatar mai aiki wanda ya fahimci yadda nau'ikan haɗaɗɗun bronze daban-daban ke aiki a ƙarƙashin spindle.
Kuna neman tallafin samarwa nan take? Duba [Custom] na musamman namu Juya CNC [Sabis] da [5-Jusiya Irinin iyawar niƙa.
Me ya sa sarrafa gami na tagulla ya bambanta da sauran ƙarfe-ƙarfen rawaya?
Yayinda ake yanke tagulla cikin tsabta da saurin juyawa mai girma da kayan aiki masu kusurwar gefe mara janar, tagulla mai launin zinƙi na da buƙatu masu yawa sosai. Tagulla mara haɗe-haɗe ko waɗanda ke ɗauke da aluminium na yawan haifar da gogayya mai ƙarfi, wanda ke haifar da taruwar zafi cikin sauri a gefen kayan aiki.
Lokacin yin sarrafa kayan tagulla da na'urar CNC, masu gyaran injina suna fuskantar ƙalubale uku masu maimaituwa:
- Karfafa aiki: Hadadden ƙarfe da ke ɗauke da aluminium ko nickel yana ƙara tauri kusan nan take idan kayan aiki ya goge maimakon yanke kayan.
- BUE (Gefen da aka gina) A ƙarƙashin yanayin zafi mai ƙanƙanta, ƙaramin walda na tagulla yana makale a kan ƙarshen kayan aiki, yana sa reza mai yanke ta yi rauni kuma yana lalata kammala saman.
- Rabuwar karkacewa: Damuwa a cikin sandunan tagulla da aka zuba ba tare da tsani ba suna sakin yayin aikin farko, suna juya ramuka zagaye zuwa murabba'i bayan an cire makalinsu.
Kwatancen Darajar Hadadden Bronze: Daidaita Kayan Aiki da Hanyar Hawa
Yin amfani da phosphor bronze kamar aluminum bronze shi ne hanya mafi sauri ta ɓata aikin da ya yi tsada. A ƙasa akwai bayani dalla-dalla kan haɗaɗɗun ƙarfe mafi yawan amfani a cikin injunan CNC lathe da mill ɗinmu:
Matirƙin Tushin Bayani na Gaggawa don Hadadden Bronze
| Darajar Hadadden Bronze | Ka'idodin daidai (UNS/DIN) | Matakin sauƙin sarrafawa | Muhimman Halaye | Shawarar dabarun kayan aiki |
|---|---|---|---|---|
| SAE 660 / C93200 | CuSn7Zn4Pb7 / RG7 | 80% (Mai girma) | Yankewar faranti da taimakon jagora, hana gogayya | Karbaidi mara rufi, SFM mai yawa, rake na al'ada |
| C95400 / C95500 | CuAl10Fe3 / Tagulla na aluminium | 20% (Ƙasa/Mai Tanka) | Ƙarfi matuƙar jan kaya, juriya mai yawa ga gogewa | Ƙaurin rake mai kaifi, rufin DLC, nauyin yanka mai yawa |
| C51000 / C54400 | CuSn5 / Tagulla mai fosfori | 50% – 80% | Ƙarfin juriya ga gajiya mai yawa, ƙwaƙwalwar bazara | Tsari mai ƙarfi, ƙaramin diamita na hanci, ƙaramin tsayin waje |
1. SAE 660 / C93200 (Bronzi na Bearing / CuSn7Zn4Pb7)
- Gaskiyar Dakin Kasuwanci: Babban aikin dogaro na matattarar guga, matattarar turjiya, da faranti masu lalacewa.
- Yin aiki da injina: Mai kyau sosai. Abun gubar yana aiki a matsayin mai karya tsagewa na ciki, yana ba da damar samun ƙarin ƙafa na saman a kowace minti (SFM) ba tare da toshewar kayan aiki ba.
- Shawara ta ƙwararru: Kula da tsabtar tacewar sump; ƙananan barbashin gubar na iya toshe bututun sanyaya masu matsa lamba mai ƙarfi cikin sauri idan ba a sa ido ba.
2. C95400 / C95500 (Bronzi na Aluminiyom / CuAl10Fe3)
- Gaskiyar Dakin Kasuwanci: Nauyi mai yawa sararin samaniya da sararin jiragen sama bushingi, jagororin bawul, da sassan tura jiragen ruwa.
- Yin aiki da injina: Mai ƙarfi. Tagulla na aluminium yana ƙara ƙarfi nan take yayin aiki idan kayan aikinka ya yi jinkiri.
- Shawara ta ƙwararru: Ka guji matakan ƙarshe na haske. Yi amfani da carbide mai kaifi tare da ƙananan radius na hanci, tsarin rake mai kyau, kuma ka kiyaye saurin ciyarwa mai ƙarfi da daidaito don kasancewa ƙarƙashin yankin da aiki ya ƙara ƙarfi.
3. C51000 / C54400 (Bronzi na fosfor / CuSn5)
- Gaskiyar Dakin Kasuwanci: Haɗaɗɗun wutar lantarki masu yawan mitar, belivill washers, da ƙuntin bazara.
- Yin aiki da injina: Daga matsakaici zuwa mai yawa (C54400 yana yankan kansa).
- Shawara ta ƙwararru: Kayan yana da matuƙar sassauci. Lokacin haƙa ramuka masu zurfi, a yi tsammanin dawowar siffa—yi amfani da sandunan haƙa masu girma fiye da kima don rage lankwasawar sandar.
Yadda ake sarrafa tagulla na aluminium da injin ba tare da ƙara ko ƙara taurin aiki ba
Samun ƙarewar Ra ƙasa da 0.8 a sassan tagulla aluminium c95400 na musamman Ba tare da gogewa da hannu ba, dole ne a kawar da tashin zafi da girgiza. Ga tsarin da muke bi a wurin aikinmu:
1. Yanka dogayen yankakken riban
Bronzi marasa gubar sau da yawa suna samar da ƙananan yankakken igiya masu ci gaba waɗanda ke nade kan ginshiƙin kayan aiki, suna lalata ƙammalawar ɓangaren.
- Tsarin Aiki: Yi amfani da sassan carbide masu sheki da aka ƙera don kayan marasa ƙarfe, waɗanda ke da masu karya tsashen ruwa masu ƙarfi. Turawa ruwan sanyaya mai matsin lamba kai tsaye (70 bar / 1000 PSI) zuwa wurin yanke domin fashe tsashen ruwa cikin motsi.
2. Kawar da ƙonewa da taruwar gefuna (BUE)
Ana walda ƙananan sassa na tagulla da carbide da zafi mai ƙarfi.
- Tsarin Aiki: Zaɓi ƙarin kayan aiki da ba a rufe ba kuma aka yi masa sheƙi, ko kuma na musamman da aka rufe da DLC (Carbon mai kama da lu'u-lu'u). Guji rufin AlTiN na al'adaAbun aluminum da ke cikin rufin na iya yin haɗin sinadarai da tagulla na aluminum a ƙarƙashin zafin yanke mai tsanani.
3. Hana lalacewar siffa a bushing ɗin sleeve mai bango siriri
Rigar bronze mai bango siriri sau da yawa tana karkata saboda sakin matsin lamba na ciki yayin juyawa.
- Tsarin Aiki:
- Yi gogewa ta kusan ga OD/ID, a bar ajiyar ƙarfi na 0.5mm.
- Cire matattarar ƙugiya gaba ɗaya kuma ka bar shi ya huta don saki matsin ƙugiya.
- Kammala juyawa ta amfani da bakin pie na cikakken fuska ko mandrel masu faɗaɗa na hydraulic don daidaita matsin riƙewa.
Nazarin Harka: Kawar da ƙara a zobe mai saurin lalacewa na tagulla na teku mai diamita 350 mm
Wani abokin ciniki na masarufi ya kawo mana zobe na tagulla nickel-aluminum C95800 (diamita na waje 350 mm, kaurin bango 4 mm). Tsohuwar masana'antar injin dinsu ta fuskanci ƙimar sharar 15% sakamakon manyan alamomin girgiza da rashin zagayowar girma.
Sabuntawar Dakin Aikinmu:
- Haɓaka riƙe kayan aiki: An maye gurbin chucks na ƙarfe na yau da kullum masu hakora uku da chucks na musamman masu laushi, an nade su $360^\circ$ a zagaye OD don rarraba matsin riƙewa.
- Tsarin kayan aiki: An maye gurbin sassan neutral da sassan $15^\circ$ masu top-rake mai kyau domin rage ƙarfin yankan radial fiye da 20%.
- Inganta hanyar injin: Niƙa trochoidal mai lissafi da motsi a cikin ramukan zobe na ciki don kiyaye kusurwar haɗin gwiwa daidaitacce, tare da kawar da tashin zafi.
Sakamako: Babu hayaniya, zagayowar girma an kiyaye shi cikin 0.012 mm, kuma an rage lokacin zagaye da 18%.
Tambayoyi da ake yawan yi (FAQ)
Menene saurin yanke da aka ba shawara (SFM) don sarrafa CNC na tagulla aluminium?
Don tagulla aluminium C95400 da kayan aikin carbide, fara da kusan 250–400 SFM (75–120 m/min) don cire babban yanki, kuma har zuwa 600 SFM don kammala. Koyaushe ku kiyaye ƙimar ciyarwa mai kyau (aƙalla 0.12 mm/rev) don hana gogayya da kayan aiki da ƙarfafawar aiki.
Me yasa tagulla ke yin ƙara yayin aikin tono zurfi, kuma ta yaya ake dakatar da ita?
Yawanci ana haifar da ƙarar bronze ta hanyar lankwasawar kayan aiki ko diamita na hanci na insert da ya yi yawa, wanda ke haifar da ƙarfi radial mai yawa. Sauya zuwa sandunan haƙo na carbide mai ɗorewa da sandunan ƙarfe masu nauyi, yi amfani da ƙaramin radius na hanci (0.2 mm – 0.4 mm), kuma zaɓi tsarin kusurwar rake mai kyau.
Za ka iya yanke bronze na biyar busasshe ba tare da mai sanyaya ba?
Ko da yake ana iya jujjuya tagulla marasa yankewa kamar SAE 660 a bushe a ƙananan sauri, ana ba da shawarar sosai a yi amfani da ruwan sanyaya mai yawa ko mai a matsin lamba mai ƙarfi. Ruwan sanyaya yana wanke ƙananan sassa daga zurfin yankan, yana hana samuwar gefuna da aka gina (Built-Up Edge, BUE), kuma yana daidaita zafin ɓangaren don tabbatar da daidaito mai ƙarfi.
Nemi farashi don sassan tagulla na musamman
Ko kuna buƙatar samfurin gwaji na bearings na SAE 660 ko cikakkiyar samarwa Niƙa na'urar CNC mai axis biyar na tagulla mai fosfor Akwatunan bawul, yin sassan tagulla na buƙatar dabarun sarrafa injin na musamman ga kowanne kayan.
Aika fayilolin 3D STEP da zanen ku zuwa ga ƙungiyar injiniyoyinmu a yau don bita na DFM nan take da samun farashi mai gasa.
