Xa abantu besiva 'amalungu ezixhobo zonyango', bahlala becinga ngamacandelo angenazintsholongwane, abengezelayo ngokuthe ngqo kumgca wokudityaniswa. Inyani ibuhlungu ngakumbi. Kumalunga nokuphosa ekufuneka kubambe ingqibelelo yevacuum amashumi eminyaka, okanye i actuator engoomatshini engakwaziyo ukusilela emva kwemijikelo yamawaka alishumi kwi-autoclave. Umsantsa phakathi komzobo kunye nenxalenye esebenzayo kulapho owona msebenzi usenzeka khona, kwaye kulapho iminyaka ichithwa khona.
Isiseko: Iqala ngeCast
Awunakho ukutshiza indawo elungileyo ukusuka ekugalweni okubi. Eso sisifundo sokuqala esinzima. Kwiziseko zezixhobo zokucinga okanye i-radiation therapy gantry components, imfezeko yezinto ayinakuxoxisana. Sibone iiprojekthi zimile ngenxa yokuqala utyalo mali yayine-micro-porosity eyathi yavela kuphela ngexesha lokwenziwa komatshini wokugqibela. Iindleko zezindlu ezilahliweyo, eziphantse zagqitywa ngumfundisi-ntsapho okhohlakeleyo.
Kulapho amava e-Foundry ayalela impumelelo. Inkampani efana Qingdao Qiangsenyuan Technology Co., Ltd. (QSY), kunye neminyaka engamashumi amathathu kwi-shell kunye ne-investment casting, iyaqonda ukuba i-thermal dynamics yokuthululela i-cobalt-chromium alloy kwisixhobo sotyando ihluke ngokupheleleyo kwintsimbi esemgangathweni. Ayikokunyibilika kwesinyithi kuphela; imalunga nokulawula indlela yokuqinisa ukunqanda amanqaku oxinzelelo abe ngamanqaku okusilela.
Ukhetho phakathi kokungunda kweqokobhe kunye nokuphosa utyalo-mali olunikiweyo izixhobo zonyango inxalenye ihlala ihla kwijometri kunye neemfuno zokugqiba umphezulu. Icandelo elintsonkothileyo, elibhityileyo lempompo yomatshini we-dialysis? Utyalo-mali olunokwenzeka. Isibiyeli esikhulu, esinesakhiwo sebhedi yasesibhedlele? Ukungunda kweShell kunokuba noqoqosho ngakumbi ngaphandle kokuncama ukusebenza. Isigqibo asisoloko sicacile, kwaye ngamanye amaxesha sifuna prototyping zombini iindlela.
Precision Machining: Apho Tolerances Bite Back
CNC machining iindawo zonyango uziva eyahlukileyo. Kukho ubunzima ngokwasengqondweni. Ukunyamezela ±0.005mm kwibhore asiyongcebiso; yimeko yomda wetywina elidibana nolwelo lomzimba. Ndikhumbula ibhetshi yezindlu ezidityanisiweyo zabajongi bezigulane apho sasileqa i-0.01mm yenyani ye-callout. Umatshini wawukwazi, kodwa ukulungiswa kunye nokwandiswa kwe-thermal ukusuka ekusikeni i-316L yensimbi engenasici yasilahla. Siye sagqiba ekubeni silawule ubushushu bendawo yevenkile ngokuqinileyo-inkcukacha hayi kumzobo.
Indlela ye-QSY yoku CNC Machining kumacandelo ezonyango kudla ngokubandakanya ukunikezelwa kwemigca yomatshini ethile kumaqela athile ezinto. Ukuqhuba i-alloys esekwe kwi-nickel, esebenza nzima njengokuphambana, kwi-setup efanayo ne-cast iron iresiphi yobomi besixhobo esingahambelaniyo kunye nemiba yokugqiba umphezulu. Ukuzahlula kunokubonakala kungasebenzi kakuhle ephepheni, kodwa kuthintela ukungcoliseka okunqamlezayo kwezinto eziphathekayo kunye nokugcina uzinzo lwenkqubo. Olo uzinzo luyinto evumela ukuba babethe i-Ra 0.8μm umphezulu ogqityiweyo ngokuqhubekayo kwiindawo ezithwele umthwalo, okubaluleke kakhulu ekuthinteleni ukuqaliswa kokuqhekeka.
Ukuqinisekiswa kwe-post-machining ngomnye umaleko. Ayisiyo nje ingxelo yeCMM. Kwiindawo zokufakelwa okanye izixhobo zoqhagamshelwano zexesha elide, sihlala sichaza iinkqubo ezongezelelweyo zokugqithisa okanye iiprothokholi ezithile zokucoca ukususa nawaphi na amasuntswana amancinci afakwe kwi-machining. Inxalenye inokugqibelela ngokomlinganiselo kodwa ibe nobutshaba bebhayoloji ukuba eli nyathelo liyakhawuleza.
I-Alloy Dilemma: Izinto eziphathekayo ayisiyo inombolo nje
Ukuchaza insimbi engenasici ayinantsingiselo. Ngaba yi-304, 316L, okanye i-17-4PH? Ngamnye uziphatha ngendlela eyahlukileyo ngexesha lokuphosa kunye nomatshini, kwaye nganye ineprofayili yokumelana ne-corrosion eyahlukileyo kwindawo yeklinikhi. I-316L lihashe lomsebenzi ngesizathu esilungileyo, kodwa kumacandelo afuna amandla aphezulu, njengeziqhubi ze-screw driver okanye i-arthroscopic shafts yesixhobo esithile, singqiyama kumabakala enza lukhuni imvula efana ne-17-4PH okanye ialloys ezikhethekileyo.
I-cobalt-based kunye ne-nickel-based alloys zikwi-league yazo. Zisetyenziswa kwizicelo ezinxilisayo ezinje ngedolo elifakelweyo okanye kwi-autoclave racks ezinobushushu obuphezulu. Umatshini wabo waziwa ngokuba nzima kakhulu-isantya esisezantsi sokusika, iijiyometri zesixhobo esithile, ukuhamba okupholisayo rhoqo ukulawula ubushushu. Inzuzo kukunxitywa okukhethekileyo kunye nokumelana nomhlwa. Iindleko ziindleko zezixhobo kunye namaxesha omjikelo omde. Ndizibonile iiprojekthi apho ukutshintsha ukusuka kwi-standard stainless ukuya kwi-cobalt alloy kuphindaphinde indleko yomatshini, kodwa yayikuphela kwendlela yokuhlangabezana nemfuneko yobomi benkonzo yeminyaka eyi-15.
Ukusebenza neqabane elinolwazi olunzulu ngemathiriyeli kubalulekile. Akukhona nje ngokuba ne-alloy kwisitokhwe; imalunga nokwazi indlela yokufudumala-uyiphathe emva komatshini ukufezekisa ubulukhuni obufunwayo ngaphandle kokuphembelela ukugqwetheka, okanye indlela yokuyila inkqubo yesango lokugalela ukuqinisekisa ukwakheka kweenkozo ezifanayo kwimilo enzima.
Iindlela zokungaphumeleli kunye nesizathu
Wonke umntu uthetha ngeendlela zokuphumelela, kodwa ukuhlalutya ukungaphumeleli kufundisa ngakumbi. Sasinecala lengalo encinci ye actuator yerobhothi yotyando. Iphumelele zonke iitshekhi ezilinganayo kodwa ayiphumelelanga kuvavanyo lokudinwa. Oyena nobangela walandwa emva kokwahluka okuncinci kwi iqokobhe ngundo ukuphosa inkqubo-ukungahambelani okuncinci kubukhulu beqokobhe leceramic kukhokelele kumahluko weqondo lokupholisa lasekhaya, ukudala indawo yolwakhiwo oluncinci oluncinci. Ngaphantsi kwe-microscope, yayibonakala. Ngaphantsi komthwalo we-cyclic, yayiyindawo yokuphuka.
Yiyo loo nto ulawulo lwenkqubo lubaluleke ngaphezu kokuhlolwa kokugqibela kumacandelo abalulekileyo. Awukwazi ukuhlola umgangatho ube yinxalenye; kufuneka uyakhe ukusuka kwinqanaba lokuqala lokwenza i-mold. Ababoneleli abafumana oku, njenge-QSY ngokugxila kwabo kwexesha elide kwinkqubo kunemveliso nje, bakholisa ukuba neentsilelo ezimbalwa zale ntlekele, ukulandelela umva. Imbali yabo yeminyaka engama-30 ibonisa ukuba bazibonile-kwaye bazisombulula-ezi ntlobo zeengxaki ngaphambili.
Olunye ukusilela okuqhelekileyo, okuchuliweyo kukuhlwa kwegalvanic kwiindibano. Ukusebenzisa isikrufu sentsimbi engenastainless kwindlu yealuminiyam kwingalo yescanner ekhaphukhaphu kunokubonakala kulungile, kodwa kubukho bearhente ezithile zokucoca, kunokuseta iseli edlayo. Inxalenye ayiphumeleli ngoko nangoko; iyasilela emva kweenyanga zokusetyenziswa, rhoqo ngaphandle kwexesha lewaranti. Uhlalutyo lokuhambelana kwezinto kwinqanaba loyilo linyathelo elingaxoxisiyo elihlala lingahoywa.
Intsebenziswano yokwenene
Ukuthenga iindawo zezixhobo zonyango ayisiyiyo iodolo yokuthenga. Yintsebenziswano yobugcisa eqala kudala ngaphambi kweRFQ. Ezona ziphumo zibalaseleyo zenzeka xa umyili wezixhobo esebenzisana neqabane lokwenziwa kwemveliso ngexesha lesigaba sokwenza iprototyping. Ngaba le kona yangaphakathi inokusasazwa kancinci ukuphucula ubomi besixhobo ngaphandle kokuchaphazela umsebenzi? Ngaba obu bukhulu bodonga bunokwenziwa ukuba bufane ukuze kuthintelwe ukutshona ekujuleni?
Iqabane elinamandla adibeneyo-ukusuka ekubunjweni ukuya CNC Machining-Inika umbono obanzi ngakumbi. Banokucebisa ukuba indawo eyilwe njengomatshini wokudibanisa intsimbi inokuthi iveliswe ngokuthembekileyo njengenxalenye enye enomatshini wokugqiba, ukuphucula imfezeko yolwakhiwo kunye nokunciphisa iindawo ezinokuthi zingcoliseke. Olu hlobo lwegalelo loyilo-lokwenza-ukwenziwa luxabiseke kakhulu kwaye luvela kumava okusebenza kuwo wonke umxokelelwane wemveliso.
Ekugqibeleni, injongo kukuthembeka kwintsimi. Inxalenye ayiyonto ekwibhili yezixhobo; licandelo elikwisixhobo ugqirha athembele kuso. Lo mbono utshintsha indlela ojongana ngayo nokunyamezelana, yonke i-callout yokugqiba, kunye nesatifikethi sezinto eziphathekayo. Ihambisa umsebenzi ukusuka kwimveliso elula ukuya kwigalelo lobunjineli. Kwaye oko, ekugqibeleni, kuko okwahlula umthengisi wempahla kwiqabane lokwenyani lemveliso yeshishini lezonyango.
