Pamene nyumba ya pampu ya hydraulic ikulephera pa 3,200 psi-kapena cobalt alloy nozzle imasweka panthawi yoyendetsa njinga yamoto-choyambitsa sichimapangidwe kawirikawiri. Ndi makina olondola a fakitale: kupotoza kwapang'ono pang'ono mu geometry, kapangidwe ka tirigu kosagwirizana kuchokera ku makina opangira makina, kapena kufufuza zinthu kosatsimikizika. Taziwona m'makontinenti atatu: magawo omwe adapitilira kuwunika kwa nkhani yoyamba koma adalephera kuyesa ntchito pambuyo pa maola 47 akugwira ntchito. Ichi ndichifukwa chake kupanga kulolerana kolimba sikukhudza manambala olimba pachojambula. Zimakhudza kulamulira-kudutsa zipangizo, njira, ndi zosankha zaumunthu.
Chifukwa Chake "Kulekerera Kwambiri" Kumatanthauza Zinthu Zosiyana Pakuchita
Kulekerera kolimba si nambala imodzi. Ndi zopinga dongosolo. Kukula kwa ± 0.005 mm pagawo la AMS 5387 cobalt alloy alloy kumafuna kuwongolera kosiyanasiyana kuposa kulolerana komweko pazitsulo za carbon low. Chifukwa chiyani? Chifukwa ma aloyi a cobalt amagwira ntchito molimba mtima, amapatuka pansi pa kukanikiza kwa chida, ndikusunga kupsinjika kwamkati pokhapokha ngati atatenthedwa ndi kutentha * pakati pa * roughing ndi kumaliza. Tinakonzanso nyumba 12 za piston pump cylinder housings chifukwa pulogalamu yoyamba ya CNC sinanyalanyaze ma coefficients owonjezera kutentha panthawi ya multi-axis contouring - zomwe zinachititsa kuti 0.018 mm axial runout pa kutentha kwa ntchito. Kukonzekera sikunali kuchepetsa kudya kwapang'onopang'ono. Kunali kulowetsa chipukuta misozi chanthawi yeniyeni mu G-code ndikutsimikizira ndi makina ojambulira a CMM pa 35°C, osati 22°C.
Zinayi Zosakambirana za Mission-Critical Metal Components
Kulondola kwenikweni kumayambira chip choyamba chisanawuluke. Kutengera zaka 11 zopanga ma valve okakamiza, ma roller a winch center shaft, ndi zida zosagwirizana ndi T800 alloy, zowongolera zinayizi zimalekanitsa ogulitsa odalirika ndi ogulitsa omwe amavomereza zoopsa:
- Zofunikira - osati chiphaso chokha: Timapereka ma billets a AMS 5387 okhala ndi malipoti oyesa mphero, koma timatsimikiziranso gulu lililonse kudzera pa spark spectrometry * ndi * kulimba kwa mapu kudutsa magawo osiyanasiyana. Matupi a ma valve a kasitomala wina ku Europe adawonetsa kuvala msanga chifukwa wogulitsa adavomereza kusintha kwa kaboni "mkati" - kusiyana kwa 0.02% kudayambitsa tsankho la carbide. Timakana magulu omwe kusiyana kwa carbon kumaposa ± 0.005%.
- Dimensional bata kudzera mu hybrid processing: Maziko a pampu oponyedwa pamchenga nthawi zambiri amasokonekera panthawi yomaliza. Yankho lathu? Kujambula kochepetsera kupsinjika *pambuyo* pa CNC yoyipa, kenako malizani pokhapokha mutatsimikizira kupsinjika kotsalira ndi X-ray diffraction pazigawo zachitsanzo. Kukonzanso kokhudzana ndi tsamba lankhondo ndi 63% pamakina opangira makina opangira ma winchi.
- Kukakamira kwa GD&T-osati kutanthauzira: Chojambula chikanena za kulolerana kwa Ø0.01 mm kutengera datum axis, sitiganiza kuti kasitomala amatanthauza "pafupifupi." Timamanga makonda a granite omwe amatseka gawolo kuzomwe zatchulidwa - ndikuyesa pogwiritsa ntchito Zeiss Contura G2 RDS yokhala ndi 0.3 µm probe kubwereza. Ayi "pafupi mokwanira."
- Traceability yophikidwa mu ntchito iliyonse: Pulagi iliyonse ya cobalt alloy imakhala ndi code ya QR yokhala ndi laser yolumikizana ndi zinthu zake zopangira, curve yochizira kutentha, lipoti loyendera CMM, ndi ID ya opareshoni. Ngati kulephera kukuchitika m'munda, timapatula zomwe zimayambitsa mkati mwa mphindi 90 - osati milungu.
Mtengo Wobisika wa "Zabwino Zokwanira" Machining
Ogula ena amaika patsogolo mtengo wotsika kwambiri wa unit kuposa kukhwima kwa ndondomeko. Amapeza zomwe amalipira, koma osati nthawi yomweyo. Wopanga zida zopangira mafuta ku North America adasinthiratu kampani yotsika mtengo yopangira pampu zazitsulo zosapanga dzimbiri. Mtengo woyamba unatsika ndi 22%. M'miyezi ya 8, kulephera kwa m'munda kunakula: 17% ya mayunitsi adadumphira pamalumikizidwe a flange chifukwa cha kusagwirizana kwapamwamba pamwamba pa Ra values (kuyezedwa 1.8-3.4 µm vs. zofunika ≤1.2 µm). Kukonza? Kukonzanso malo osindikizira ndikutengera $412,000 pantchito yotsimikizira. Kulondola sikokwera mtengo. Zosakaniza zolakwika.
Momwe Mgwirizano Weniweni Wolekerera Kupirira Umawonekera
Zimayambira pakuwunikanso - osati PO. Makasitomala akatitumizira ma GD&T-heavy schematics a mavavu oponderezedwa kapena ma silinda anyumba, sitimangobwereza mawu. Timayitanira kuopsa kwa kupangidwa: "Kuyitana kwa 0.008 mm uku pa nkhope ya 320 mm x 180 mm kumafuna kugaya *pambuyo pa kutentha kwa kutentha - apo ayi kupotoza kungapitirire kupirira. Taletsa mapangidwe 217 motere. Malo athu ogwirizana ndi ISO amayendetsa ndalama nthawi imodzi, makina a 5-axis CNC, ndi chithandizo cha kutentha kwa vacuum - kotero palibe zolembera zakunja zomwe zingawononge kuwongolera. Kuyendera komaliza si chipata. Ndizosalekeza: kuwunika kwazinthu zomwe zikubwera, kutsimikizika kwa CMM mkati mwa ntchito iliyonse, ndikuyesa kukakamiza kwantchito pa 1.5x yovotera kukakamiza kogwira ntchito.
Kuthekera kwa fakitale yolondola sikuyezedwa mu spindle RPM kapena zaka zamakina. Zimatsimikiziridwa pamene mphuno ya T800 yochokera ku cobalt imapulumuka matenthedwe 14,000 popanda microcracking-kapena pamene nyumba ya pampu ya piston imatulutsa madzi osasunthika pa 4,500 psi kwa miyezi 18. Kudalirika kumeneko kumachokera kuzinthu zolembedwa, kuwongolera zitsulo, ndi kulekerera zero pazongoganiza. Kwa mainjiniya omwe amafotokoza zinthu zomwe kulephera kumatanthauza nthawi yocheperako, chiwopsezo chachitetezo, kapena chilango chowongolera: kulondola sizomwe zimachitika. Ndi ndondomeko yoyendetsera ntchito.
