Ukuveliswa kokunyamezela okuphezulu akuqali ngeprogram ye-CNC okanye i-mold yokuphosa. Iqala ngesigqibo: ukusebenzisana nefektri yoshishino oluchanekileyo oluphatha uzinzo lwe-dimensional, i-metallurgical consistency, kunye nokuthembeka komsebenzi kungekhona njengeethagethi-kodwa njengento engenakuxoxisana.
Sibone iiprojekthi ezininzi zimile kwinqanaba leprototype-hayi ukusuka kuyilo olugwenxa, kodwa kwinkqubo engafanelekanga. Umthengi waseJamani wakha wasithumelela umzobo ohlaziyiweyo we-AMS 5387 cobalt alloy pump house emva kwemizamo emithathu engaphumelelanga kwenye indawo. Umba yayingengowonyamezelo callouts (± 0.01 mm kwiibhore ezibalulekileyo) okanye ukugqiba umphezulu (Ra 0.4 µm). Kwakuyintlupheko ye-thermal ngexesha lokunyanga ukushisa-okungalawulwayo kwi-run yangaphambili, engabonakaliyo de kube ngukuhlolwa kokugqibela kwe-CMM. Kulapho saqaphela khona: ukunyamezelana okuphakamileyo akukhona nje ngamanani angqingqwa. Imalunga nokulawula yonke into eguquguqukayo ehambisa loo manani.
Ukudityaniswa okuthe nkqo ngumgca wokuQala woLawulo loNyamezelo
Uninzi lwababoneleli abakhuphela ngaphandle, ukwenza oomatshini, okanye ukugqiba. Oko kudala ujongano oluthathu olwahlukeneyo-kunye namathuba amathathu okukhukuliseka kwe-microstructural, ukuphinda ubambe impazamo, okanye iidatum ezingalungelelanisiweyo. Kwiziko lethu elithobela i-ISO e-Qingdao, i-cobalt-nickel castings isuka kwi-investment mold ukuya kwi-multi-axis mill ngaphandle kokushiya umgangatho wemveliso. Umatshini we-cylinder wezindlu ngokuthe ngqo kwipatheni ehambelanayo yokuphosa-akukho cwangciso lwesibini, akukho kutshintsha kwedatum. Kumalungu empompo yepiston efuna ubunzulu obungaphantsi kwe-0.008 mm ngaphaya kwe-300 mm ubude, oko kuqhubela phambili kunciphisa impazamo eyongezelekayo ngaphezulu kwe-60% ngokuchasene nokulandelelana komthengisi ngesandla.
Oku akuyothiyori. Kwiprojekthi enye ye-oyile yaseMntla Melika, sihambise i-127 imizimba yevalve yoxinzelelo-bonke ngaphakathi kwe ± 0.005 mm kwidayamitha yesihlalo, zonke zilandelelwa kubushushu obubodwa be-T800 alloy eqinisekisiweyo. Njani? Ngenxa yokuba iqela lethu le-Foundry lihlengahlengisa ubushushu obuthululwayo ngokusekwe kuhlalutyo lwexesha lokwenyani lokunyibilika, oomatshini bethu basebenzisa inkqubo yokukhangela ukubuyisela isixhobo esinxitywayo ngaphambi kokuba sifike kwi-0.002 mm, kwaye ilebhu yethu ye-metrology iqinisekisa yonke into ngokuchasene neemfuno ze-ASME Y14.5 GD&T-hayi nje imilinganiselo eqhelekileyo.
Ubuchwephesha beSuperalloy buthetha ukwazi ukuba yintoni ayithethiyo iSpecial
I-AMS 5387 ayisiyonto nje “enzima kumatshini.” Isantya sokusebenza nzima sinyuka ngaphezulu kwe-350 HB. Izixhobo eziqhelekileyo ze-carbide ukuphuka; iziphazamiso zokuqukuqela kwesipholisi zibangela iileya zerecast zasekhaya. Ezinye iivenkile ziphendula ngokutya okucothayo kunye nokususwa kwesitokhwe esinzima-ke uzibuze ukuba kutheni iinxalenye zijika kuxinzelelo.
Asiyiphathi i-cobalt alloys njengezinto ezingaqhelekanga. Sibaphatha njengezinto eziqhubekayo zokusebenza. Ithala leencwadi lethu lezixhobo liquka i-PCD-tipped drill for T800 nozzles, i-cryo-treated end mills ukuze kuqhutyekwe kufakwe iiplagi ze-AMS 5387, kunye nezicwangciso eziliqili eziguquguqukayo ezigcina umthwalo wechip ngaphakathi kwe-5% kubunzima obahlukeneyo bodonga. Okubaluleke ngakumbi: siqinisekisa amandla onke obushushu kunye nobukhulu bengqolowa * phambi kokuba * kuqale ukusebenza — hayi emva koko. Ngenxa yokuba ukuphambuka kwe-2% kumxholo we-cobalt kutshintsha ukwandiswa kwe-thermal ngokwaneleyo ukuphula i-0.012 mm interference fit.
- AMS 5387 iinxalenye ngoomatshini ngaphantsi kwe-0.003 mm ukuphinda-phinda ngaphaya kweebhetshi ezingama-50
- I-T800 ialloy center shaft rollers iphumelele Ra 0.25 µm umphezulu imfezeko ngaphandle kokupholisha emva komatshini
- Imilomo yengxubevange yeCobalt edlulayo I-100% yokuhlolwa kwe-ultrasonic kwi-porosity yangaphakathi-nangona kwi-12 mm yodonga lobunzima
Umgangatho awuhlolisiswanga-Uyinjineli ngaphakathi
Ezinye iifektri ziqhuba uhlolo lwenqaku lokuqala. Siqhuba kuqala-*uhlolo lwezinto*. Yonke i-coil, ibha, okanye i-ingot ifika kunye neengxelo ezipheleleyo zovavanyo lokusila. Sijonga ikhemistri ngokusebenzisa i-OES spectroscopy, siqinisekisa ubume be-microstructure ngohlalutyo olucwangcisiweyo lwecandelo, kunye nemephu yokuqina kobunzima kuwo wonke amacandelo anqamlezayo. Ngoba? Ngenxa yokuba i-billet "eqinisekisiweyo" ye-AMS 5387 isengabonisa i-15% yobunzima obuguquguqukayo ukusuka kumphezulu ukuya kwisiseko-ngokwaneleyo ukulahla izibikezelo zobomi besixhobo kunye nokubangela uxinzelelo oluseleyo.
I-CMM yethu ayipakishwanga kwigumbi elilawulwa yimozulu. Idityaniswe kwiseli yomatshini-ukulinganisa ukujikeleza okujikelezayo * phakathi * kokugqithiswa ngokurhabaxa kunye nokugqiba. Abathelekisi be-Optical bajonga ukuchaneka kwentambo yentambo kwiindibano zeplagi ngelixa iinxalenye zisafudumele, zibamba ukuziphatha kokuthotywa kwe-thermal. Ukuhlolwa kokugqibela kubandakanya uvavanyo olusebenzayo: iivalve zoxinzelelo zihamba nge-1.5 × ukulinganisa ukugcinwa kwe-hydraulic imizuzu engama-30; i-winch shafts ijikeleza kwi-2,200 RPM kwiirigi zokulinganisa eziguqukayo.
Ukulandeleka akuyobhokisi yokukhangela. Litsheyini: inombolo yobushushu besixhobo → iqashiso lokuphosa → inguqulelo yenkqubo ye-CNC → i-ID yomsebenzisi → I-ID yengxelo ye-CMM → indawo yokuthumela ngenqanawa. Ukuba umthengi ufole idimensional anomaly, siyakha ngokutsha yonke inkqubo phantsi kwemizuzu engama-90-hayi iintsuku.
Ukunyaniseka koHambiso lwenyani luqala phambi kwePO
"Ungayenza lonto?" ngumbuzo wokuqala ongalunganga. "Loluphi olona phawu lusemngciphekweni kakhulu-kwaye silubeka njani umngcipheko *phambi kokusika intsimbi?" yeyona ilungileyo. Yiyo loo nto uphononongo lwethu lobunjineli lubandakanya ukuqinisekiswa kwe-GD&T, ingxelo yokwenziwa kwezinto kumacandelo anodonga olucekethekileyo, kunye nokulinganisa ubushushu bokulinganisa iijiyometri. Sifaka iflegi kwimiba enokubakho efana nokupholisa kwe-asymmetric kwiziseko zempompo okanye ukugoba okunyanzelwa ukuphambuka kwiisilinda zezindlu ezinde-phambi kokuba kuveliswe indlela yesixhobo yokuqala.
Sihambisa ii-odolo zomthamo ophakathi (50-500 pcs) kwiiveki ze-12-18-kungekhona ngenxa yokuba sicotha, kodwa ngenxa yokuba sicinezela umngcipheko, kungekhona ixesha. Iiprototypes zithunyelwa kwiiveki ze-4-6 kunye neepakethi zedatha yokuhlola ngokupheleleyo. Akukho nto imangalisayo. Akukho zilophu zokuphinda zisebenze. Iinxalenye nje ezisebenza njengoko kuchaziwe, ngexesha, kwiimarike zehlabathi-ukusuka kwii-OEM ze-hydraulic eWisconsin ukuya kwizihlanganisi zempompo zaselunxwemeni eSingapore.
Kwiinjineli ezichaza amacandelo apho i-±0.005 mm ithetha umahluko phakathi kwemfezeko yetywina kunye nokusilela okuyintlekele, ukusebenzisana nomzi-mveliso woshishino womatshini ochanekileyo kuthetha ukukhetha ulawulo phezu kokulalanisa. Kuthetha ukuthembela ukuba i-cobalt alloy ayilungiswanga nje ngoomatshini-inobuchule. Olo kunyamezelana alusukelwa-lwakhiwe ngaphakathi. Ukuba yonke inxalenye ichaza ibali elifanayo: ukunyaniseka komlinganiselo, ukunyaniseka kwezinto eziphathekayo, ukulungela ukusebenza.
QINGDAO QIANGSENYUAN TECHNOLOGY CO., LTD. isebenza kweso sidibaniso-apho ukuntsonkotha kwe-superalloy kuhambelana nokuchaneka komgangatho woshishino. Umsebenzi wabo ungqina ukuba ukwenziwa kokunyamezelana okuphezulu akuchazwanga ngezixhobo zodwa. Ichazwa yinto eyenzekayo phakathi kwesatifikethi sezinto eziluhlaza kunye nengxelo yokugqibela yokuhlola. Kwaye kulapho ukuthembeka kwangempela kuqala khona.
