Pamene valavu yanu ya hydraulic ikulephera pa 3,000 psi-kapena nyumba yapampu ya cobalt-alloy imasweka pansi pa njinga yamoto-simukusowa makina "okwanira". Mufunika kukhazikika mkati mwa ± 0.005 mm, kukhulupirika kwa microstructure pamagulu otenthedwa a AMS 5387, ndi kulekerera ziro pamipata yotsatirika. Ichi ndichifukwa chake mainjiniya ku North America, Germany, ndi Singapore amatchula magawo a mkulu mwatsatanetsatane CNC Machining fakitale zomwe zimagwira GD&T osati ngati zolemba-koma ngati fizikiki yosagonja.
Kulondola kwenikweni kwadziko lapansi kumayambira pomwe kulolerana kumasiya kukhala ongoyerekeza
Taziwonapo kawiri chaka chino: Wopereka zida za Tier-1 pamalo opangira mafuta adakana 47% ya ma silinda apampopi a piston kuchokera kwa ogulitsa atatu osiyanasiyana - osati chifukwa chomaliza, koma chifukwa chokhazikika chinasunthika kupitirira 0.012 mm pambuyo pa chithandizo cha kutentha kwapang'onopang'ono. Chifukwa chake? Kusakhazikika kwa mbewu zomwe zimadyetsedwa mu ntchito za CNC. Ku QINGDAO QIANGSENYUAN TECHNOLOGY CO., LTD., timathetsa izi kumtunda. Malo athu opangira mchenga amawongolera mitengo yolimba yachitsulo ndi zitsulo zosapanga dzimbiri pogwiritsa ntchito mamapu anthawi yeniyeni ya thermocouple-kenako tsimikizirani billet iliyonse yomwe ikubwera ndi kusanthula kwazithunzi kusanayambike. Palibe zongoganizira. Palibe kuchotserapo magulu.
Kuphatikizika koyima uku - kuponyera, ma CNC amitundu yambiri, chithandizo cha kutentha, ndi kumaliza pamwamba pansi pa denga limodzi logwirizana ndi ISO - zikutanthauza kuti timakhala ndi kulolerana kwa geometric *kupyolera mu * unyolo wonse. Thupi la valve yokakamiza silimangopangidwa kuti lijambule; shrinkage yake yoponyera imayesedwa, kupotoza kwake pambuyo pa makina kumayesedwa pa Zeiss CMM, ndipo kuuma kwake komaliza kumatsimikiziridwa motsutsana ndi ASTM E18. Timapereka zida zomwe zimapulumuka - osati kungopambana - mayeso oyamba a kuthamanga.
Superalloys si "zovuta kupanga makina." Iwo sanasamalidwe
Otsatsa ena amachitira ma aloyi a cobalt-nickel ngati chitsulo cholimba. Iwo sali. Zomwe zili ndi T800 zimafuna njira zochepetsera kutentha—osati zakudya zaukali zokha. Timagwiritsa ntchito mphero yodyetsera kwambiri yokhala ndi ma PCD-nsonga zodulira pa nozzles za AMS 5387, kusunga umphumphu pansi pa Ra 0.4 µm pomwe tikugwira makulidwe a khoma mpaka ± 0.008 mm. N’chifukwa chiyani zimenezi zili zofunika? Chifukwa kusiyanasiyana kwa 0.015-mm mu pulagi ya cobalt alloy amasintha mphamvu yoyenda ndi 11% m'mabwalo othamanga kwambiri a hydraulic-ndipo ndiye angayesedwe pakulephera kwamunda.
Malo athu ogulitsira amakhala ndi makina asanu a DMG MORI NT omwe ali ndi kufufuza kophatikizika, koma kusiyanitsa kwenikweni ndi kuwongolera zitsulo. Timagwirizanitsa njira zochizira kutentha ndi ogulitsa ovomerezeka - kuonetsetsa kuti gulu lililonse la AMS 5387 likugunda kulimba kwamphamvu (≥1,380 MPa) ndi elongation (≥12%) *kudula kusanayambe. Makasitomala akatipempha kuti tifanizire cholozera cha T800 alloy center shaft chozimitsidwa cha makina opangira ma winch a injiniya, tidasinthiratu mawonekedwe oyambilira kudzera kusanthula kwa SEM/EDS - osati kungotengera miyeso. Gawoli lidayenda 32% motalika muutumiki kuposa m'malo mwa OEM.
Kudalirika sikulonjezedwa. Zimapangidwa mu ma protocol oyendera
"Kutsata kwathunthu" kumatanthauza zambiri kuposa nambala yodinda pabokosi. Pachinthu chilichonse chovuta kwambiri - ma valve opanikizika, maziko a mapampu, nyumba zosungiramo masilinda - timalemba: malipoti oyesa mphero, zotsatira za X-ray, ma ID a pulogalamu ya CNC, mafayilo oyezera a CMM, ma chart a ng'anjo yotenthetsera, ndi zolemba zomaliza zowonera. Deta yonse imasungidwa kwa zaka 10. Makasitomala amapeza mbiri yawo ya projekiti kudzera pa portal yotetezeka - osati ma PDF omwe amatumizidwa pakati pausiku.
Koma kutsimikizira kumachitika *panthawi yopanga* osati kumapeto kokha. Ogwiritsa ntchito amafufuza pogwiritsa ntchito zofananira zowonera pazinthu monga nozzle orifice geometry. Gawo lirilonse lachitatu limadutsa pakuwunika kwathunthu kwa CMM motsutsana ndi fayilo yoyambirira ya STEP-osati miyeso yayikulu. Ndipo inde, timatsimikizira ma callout a GD&T ngati malo, mbiri, ndi runout * munkhani*, osati ngati mawonekedwe akutali. Ngati chojambula chanu chikuwonetsa kulekerera kwa mawonekedwe a nkhope ya flange mogwirizana ndi axis yoboola, timayezera motere-pogwiritsa ntchito zofananira zomwe zimafanana ndi momwe msonkhanowo ukuyendera.
Nthawi yanu siyenera kudalira luso laopereka
Maoda apakati (ma PC 50-500) nthawi zambiri amakhala m'mafakitole okometsedwa kuti apange ma prototypes kapena kupanga zochuluka. Tidapanga mayendedwe athu apakati: masanjidwe a cell otsamira, kukonza kokhazikika kwa mabanja azigawo zapampu, ndi buffer stock ya cobalt wamba ndi magiredi osapanga dzimbiri. Pamene OEM mpope ya ku Ulaya inkafuna zigawo 120 za mpope za AMS 5387 m’masiku 18—pambuyo pa wogulitsa wawo wakale ataphonya tsiku lomalizira ndi masiku 37—tinapereka tsiku la 17. Osati pogwira ntchito Loweruka ndi Lamlungu. Pochotsa malupu okonzanso: kuponya porosity komwe kumagwidwa kale, kuvala kwa zida kumayang'aniridwa mu nthawi yeniyeni, ndikuwunika komaliza musanapake.
Kudalirika kumeneko kumafikira ku chithandizo cha uinjiniya. Sitimangogwira mawu zojambula—timasonyeza kuopsa kwa kupanga * tisanatchule mawu akuti: “Khoma la mamilimita 0.3 a pa mavalo a ma valve lidzapatuka pamene mukumangiriza; perekani malingaliro owonjezera nthiti zosakhalitsa.” Kapena: "Kumaliza kwa Ra 0.2 µm kumafunikira electropolishing-osati kugaya-komwe kumawonjezera masiku atatu koma kumalepheretsa kuyambitsa kwapang'onopang'ono." Palibe zodabwitsa. Zosankha zokha zomwe zidakhazikitsidwa zaka 12 zopanga zida zamafakitale zapamwamba kwambiri.
Pazigawo zachitsulo zofunika kwambiri - pomwe kulephera kumatanthauza kuti nthawi yocheperako, chiwopsezo chachitetezo, kapena zonena za chitsimikizo - kulondola sibokosi losakira. Umu ndi momwe mumawongolera kapangidwe kambewu, kuwongolera kupotoza kwamafuta, ndikukhazikitsa kupitiliza kwapang'onopang'ono popanga, kupanga, ndi kumaliza. QINGDAO QIANGSENYUAN TECHNOLOGY CO., LTD. imagwira ntchito ngati a mkulu mwatsatanetsatane CNC Machining fakitale chifukwa imagwira ma micron aliwonse ngati chofunikira - osati chandamale. Chigawo chanu chotsatira sichikusowa mawu ena. Zimafunika bwenzi lomwe limayesa kupambana mu nthawi yogwira ntchito, osati kungopereka nthawi.
