Kuponyera ndalama zazing'ono kumapereka zigawo zachitsulo zowoneka bwino pansi pa 50 magalamu - nthawi zambiri zopepuka ngati 0.5 g - zololera zolimba kuposa ± 0.05 mm ndipo pamwamba zimatha mpaka Ra 1.6 µm. Pamene mpando wanu wa hydraulic valve uyenera kusindikizidwa pa bar 420, kapena mpweya wanu wapampu wa cobalt upulumuka pa 800 ° C pa njinga yamoto pamene mukulimbana ndi kukokoloka kwa slurry, kuponya ndalama zazing'ono sikophweka. Ndi njira yokhayo yomwe imakhala ndi geometry, kapangidwe ka tirigu, ndi chemistry pamalo otsekeka pagawo lililonse.
Tapanga zida zopitilira 17,000 kuyambira 2019 —makamaka ma AMS 5387 cobalt alloy nozzles, T800-based center shaft rollers, ndi nyumba zapampu zachitsulo zosapanga dzimbiri zosapanga dzimbiri pansi pa 32 mm kutalika kwake. Mu batch iliyonse, timawona zenizeni zomwezo: kuyika ndalama kokhazikika kumalephera pansi pa 10 g. Umphumphu wa nkhungu ukugwa. Kupotoka kwa mawonekedwe a sera kumapitilira 3%. Ceramic shell permeability imatsika. Kudzaza zitsulo kumakhala kosayembekezereka. Ichi ndichifukwa chake "micro" sikuti ndi kukula kwake - ikufuna kukonzanso njira yonseyi: kupanga sera, kupanga zipolopolo zotsatizana, ma kinetics a dewax, mitengo ya preheat ramp, ndi kuwongolera kothandizidwa ndi vacuum.
Njira zitatu zaukadaulo zimalekanitsa kuyika kwa ndalama zazing'ono zenizeni kuchokera kumayendedwe wamba. Choyamba, kugwiritsa ntchito mawonekedwe kuyenera kuyenda pa ±1.5 µm kubwereza—osati ±5 µm. Timagwiritsa ntchito nkhungu zachitsulo zolimba za P20 zokhala ndi ma cavities opukutidwa ndi ma elekitirodi komanso mayunitsi a jekeseni okhazikika. Chachiwiri, machitidwe a zipolopolo amafunikira zomangira zosanjikiza zisanu: malaya awiri ochapira okhala ndi submicron zircon, zigawo ziwiri zapakatikati zokhala ndi silika wosakanikirana, ndi malaya amodzi omaliza okhala ndi tinthu tating'ono. Chachitatu, kuthira kumafuna kuyang'anira kutentha kwa nthawi yeniyeni kusungunuka mkati mwa ± 3 ° C - ndi milingo ya vacuum yomwe imakhala pa 0.08-0.12 mbar panthawi yodzaza. Dumphani chilichonse mwa izi, ndipo mupeza masango a porosity pafupi ndi makoma opyapyala kapena chipata chosakwanira chodzaza ndi zinthu zosachepera 0.8 mm.
Makasitomala nthawi zambiri amafunsa kuti: "Kodi sitingathe kungokhala makina a CNC m'malo mwake?" Kwa ma geometries - inde. Koma taganizirani pulagi ya AMS 5387 cobalt alloy yokhala ndi khoma la 0.6 mm, njira yozizirira yamkati ya helical, ndi malo atatu osindikizira. Machining amawononga 82% ya zopangira. Moyo wa zida umatsikira ku magawo 47 pakuyika kwa carbide. Ndipo kupsinjika kotsalira kuchokera ku mphero kumapangitsa uta wa 12 µm pakuwotcha komaliza. Kuyika ndalama zazing'ono kumayambira pafupi ndi ukonde. Kenako timayika mphero ya 5-axis pokhapo pomwe GD&T ikufuna - monga nkhope yosindikizira kapena chotchingira. Chotsatira? 63% kutsika mtengo kwazinthu, 4.2 × nthawi yozungulira mwachangu, komanso chiwopsezo cha zero chofalitsa ming'alu yaying'ono kuchokera pakuwonongeka kwapadziko lapansi chifukwa cha makina.
QINGDAO QIANGSENYUAN TECHNOLOGY CO., LTD. adapanga luso lake lothandizira ndalama pang'ono pozungulira magawo ofunikira kwambiri - osati chidwi cha labu. Chigawo chilichonse cha zombo zokhala ndi kutsata kwathunthu: nambala ya kutentha, phula, chipika chomangira zipolopolo, rekodi, ndi lipoti la CMM lojambulidwa ku ma callouts a ASME Y14.5 GD&T. Timatsimikizira kukhazikika kwapang'onopang'ono pamatenthedwe atatu (-40 ° C mpaka +250 ° C) tisanatulutsidwe. Kukhulupirika kwapamtunda kumatsimikiziridwa kudzera m'magawo a SEM-osati kungoyang'ana kokha. Ndipo inde - timayesa aloyi ya T800 yogawa gawo lililonse la cobalt pogwiritsa ntchito mapu a EDS, chifukwa chiŵerengero chosagwirizana cha gamma-beta chimakhudza mwachindunji moyo wa kutopa muzitsulo za winch center.
Micro Investment casting imagwira bwino ntchito ikaphatikizidwa ndi dongosolo lamapangidwe. Pewani ngodya zakuthwa zamkati—gwiritsani ntchito ≥0.3 mm radiya. Sungani makulidwe a khoma pansi pa 3: 1. Tchulani zolembera pokhapokha pomwe kusawumbidwa kumafunikira - 0.25 ° ndiyokwanira zipolopolo zambiri za zircon. Osalekanitsa zinthu zoonda: zilumikizeni ku misa ndi nthiti kapena nthiti zomwe zimathandizira kulimba kwa chipolopolo panthawi ya sera. Timawunikanso zojambula zonse kuti zikhale zowoneka bwino tisanatchule. Mwezi watha, tidayika chizindikiro cha 0.45 mm pampando wa valve wopanikizika womwe ukanathyola chipolopolo cha ceramic panthawi ya sera ya nthunzi. Kukonzanso kunatenga maola awiri. Adapulumutsa kasitomala masiku 11 ndi $8,400 pazida zopanda pake.
Izi sizikhudza kuchepetsa njira zakale. Ndi za kumanga zatsopano - wosanjikiza ndi wosanjikiza, micron ndi micron, zambiri ndi zambiri. Pamene mapampu amafuta amafunikira kupanikizika kwakukulu, monga makina opangira ma hydraulic akucheperachepera kukhala ma robotiki am'manja, ndipo ma aloyi a cobalt-nickel akukankhira mu maenvulopu antchito a 900 ° C, kuyika ndalama pang'ono kumasintha kuchoka ku niche kupita kofunikira. QINGDAO QIANGSENYUAN TECHNOLOGY CO., LTD. imayang'ana momwe kulondola kumayendera: zigawo zomwe sizingokwanira-koma zimagwira ntchito, kukhalapo, ndikubwereza. micro Investment casting imayamba pang'ono. Zimathera pomwe kudalirika sikungakambirane.
