Uma abantu bezwa 'izingxenye zemishini yezokwelapha', bavame ukucabanga ngezinto eziyinyumba, ezicwebezelayo ziqonde ngqo emugqeni wokuhlanganisa. Iqiniso liyi-grittier. Imayelana nokulingisa okufanele kubambe ubuqotho be-vacuum amashumi eminyaka, noma i-actuator engumshini engakwazi ukwehluleka ngemva kwemijikelezo eyizinkulungwane eziyishumi ku-autoclave. Igebe phakathi komdwebo nengxenye esebenzayo yilapho kwenzeka khona umsebenzi wangempela, futhi yilapho kuchithwa khona iminyaka.
Isisekelo: Iqala ngabalingisi
Awukwazi ukufaka ingxenye enhle ekulingiseni okubi. Lesi yisifundo sokuqala esinzima. Ngezisekelo zemishini yokuthwebula izithombe noma izingxenye ze-gantry zokwelashwa ngemisebe, ubuqotho bezinto ezibonakalayo akunakuxoxwa ngazo. Sibone amaphrojekthi ema ngenxa yokuqala ukutshala imali yayine-micro-porosity ebonakala kuphela ngesikhathi somshini wokugcina. Izindleko zezindlu ezilahliwe, ezicishe ziqedwe uthisha ononya.
Yilapho okuhlangenwe nakho kwe-Foundry kusho impumelelo. Inkampani efana I-Qingdao Qiangsenyuan Technology Co., Ltd. (QSY), kanye neminyaka engamashumi amathathu kugobolondo nokufaka utshalomali, iyaqonda ukuthi amandla okushisa okuthela ingxubevange ye-cobalt-chromium yethuluzi lokuhlinza ahluke ngokuphelele kunsimbi engagqwali evamile. Akukhona nje ngokuncibilikisa insimbi; kumayelana nokulawula indlela yokuqinisa ukuvimbela amaphuzu okucindezeleka abe amaphuzu okuhluleka.
Inketho phakathi kwesikhunta segobolondo nokusakazwa kokutshalwa kwezimali kokunikeziwe ingxenye yemishini yezokwelapha kuvame ukwehlela ezidingweni zejometri kanye nokuqedwa kwendawo. Ingxenye eyinkimbinkimbi, enezindonga ezincane zephampu yomshini we-dialysis? Cishe ukutshalwa kwezimali. Ubakaki omkhulu, wesakhiwo sombhede wasesibhedlela? Isikhunta seShell singase sibe ukonga kakhulu ngaphandle kokudela ukusebenza. Isinqumo asihlali sicacile, futhi kwesinye isikhathi sidinga ukwenza i-prototyping ngezindlela zombili.
I-Precision Machining: Lapho Ukubekezelelana Kuluma Khona
Izingxenye zezokwelapha ze-CNC zizizwa zihlukile. Kunesisindo esingokwengqondo. Ukubekezelela ±0.005mm kubhore akusona isiphakamiso; wumbandela womngcele wophawu oluthinta uketshezi lomzimba. Ngikhumbula inqwaba yezindlu zokuxhuma zabaqaphi besiguli lapho besijaha khona i-callout yeqiniso engu-0.01mm. Umshini wawukwazi, kodwa ukulungiswa nokunwetshwa kokushisa okuvela ekusikeni insimbi engagqwali engu-316L kusilahlile. Sigcine sekufanele silawule izinga lokushisa le-ambient yesitolo ngokuqinile—imininingwane engekho emdwebeni.
Indlela ye-QSY yoku CNC imishini kwezingxenye zezokwelapha ngokuvamile kuhilela ukunikezela imigqa yemishini ethile yamaqembu athile wezinto ezibonakalayo. Ama-alloys asekelwe ku-nickel asebenzayo, asebenza-lukhuni njengokuhlanya, ekusetheni okufanayo njengensimbi ecijile kuyindlela yokuphila yamathuluzi engahambisani kanye nezinkinga zokuqeda phezulu. Ukuzihlukanisa kungase kubonakale kungasebenzi kahle ephepheni, kodwa kuvimbela ukungcoliswa kwezinhlayiya ezibonakalayo futhi kugcina ukuqina kwenqubo. Lokho kuzinza yikho okubavumela ukuthi bashaye ingaphezulu lika-Ra 0.8μm ngokuqhubekayo kumajoyinti athwala umthwalo, okubalulekile ekuvimbeleni ukuqaliswa kokuqhekeka.
Ukuqinisekiswa kwe-post-machining kungesinye isendlalelo. Akuwona nje umbiko we-CMM. Ezingxenyeni ezifakwe kuma-implants noma kumadivayisi okuxhumana esikhathi eside, sivamise ukucacisa izinqubo ezengeziwe zokudlula noma amaphrothokholi athile okuhlanza ukuze sisuse noma yiziphi izinhlayiya ezincane ezishumekiwe emishinini. Ingxenye ingaba yinhle ngokwengxenye kodwa ibe nobutha ngokwemvelo uma lesi sinyathelo siphuthunyiswa.
I-Alloy Dilemma: Okubalulekile Akuyona Nje Inombolo
Ukucacisa insimbi engagqwali akusho lutho. Ingabe i-304, 316L, noma i-17-4PH? Ngayinye iziphatha ngendlela ehlukile ngesikhathi sokulingisa kanye nokwenza imishini, futhi ngayinye inephrofayili ehlukile yokumelana nokugqwala endaweni yomtholampilo. I-316L iyihhashi lokusebenzela ngesizathu esihle, kodwa ezingxenyeni ezidinga amandla aphakeme, njengezishayeli zesikulufu sethambo noma izinsimbi ezithile zamathuluzi e-arthroscopic, sincike kumabanga aqinisa imvula njengo-17-4PH noma ama-alloys akhethekile.
Ama-alloys asekelwe ku-cobalt kanye ne-nickel akwiligi yawo siqu. Asetshenziswa ezinhlelweni eziguga kakhulu njengamajoyinti amadolo okufakelwa noma kuma-autoclave racks asezingeni eliphezulu. Ukwenza kwabo imishini kudume kabi—isivinini esiphansi sokusika, amajiyometri amathuluzi athile, ukugeleza okupholisayo okuqhubekayo ukulawula ukushisa. Inzuzo ukuguga okukhethekile nokumelana nokugqwala. Izindleko yizindleko zamathuluzi kanye nezikhathi zomjikelezo omude. Ngike ngabona amaphrojekthi lapho ukusuka ku-stainless standard ukuya ku-cobalt alloy kuphindaphinde kabili izindleko zomshini, kodwa bekuwukuphela kwendlela yokuhlangabezana nemfuneko yenkonzo yeminyaka engu-15.
Ukusebenza nozakwethu onolwazi olunzulu ngezinto ezibonakalayo kubalulekile. Akukhona nje ngokuba nengxubevange esitokweni; kumayelana nokwazi indlela yokushisa-ukuyiphatha ngemva komshini ukuze kuzuzwe ubulukhuni obufunayo ngaphandle kokuyenga ukuhlanekezela, noma indlela yokuklama isistimu yokufaka yokufaka ukuze kuqinisekiswe ukwakheka okusanhlamvu okufanayo ngendlela eyinkimbinkimbi.
Izindlela Zokwehluleka kanye nokuthi Kungani
Wonke umuntu ukhuluma ngezindlela zokuphumelela, kodwa ukuhlaziya ukwehluleka kufundisa kakhulu. Sibe necala elinengalo encane ye-actuator yerobhothi elihlinzayo. Iphumelele kukho konke ukuhlolwa kobukhulu kodwa yehlulekile ekuhloleni ukukhathala. Imbangela yalandelwa emuva kokuhluka okuncane kwe ukubunjwa kwegobolondo inqubo—ukungahambelani okuncane kogqinsi lwegobolondo le-ceramic kuholele kumehluko wezinga lokupholisa lasendaweni, okudala indawo ye-microstructure ehluke kancane. Ngaphansi kwe-microscope, yayibonakala. Ngaphansi komthwalo we-cyclic, bekuyindawo yokuphuka.
Yingakho ukulawula inqubo kubaluleke ngaphezu kokuhlolwa kokugcina kwezingxenye ezibalulekile. Awukwazi ukuhlola ikhwalithi ube yingxenye; kufanele uyakhe kusukela esinyathelweni sokuqala sokwenza isikhunta. Abahlinzeki abathola lokhu, njenge-QSY ngokugxila kwabo kwesikhathi eside enqubweni esikhundleni sokuphuma nje, bavame ukuba nokumbalwa kwalokhu okuyinhlekelele, ukwehluleka ukulandela umkhondo. Umlando wabo weminyaka engu-30 uphakamisa ukuthi bazibonile—futhi bazixazulula—lezi zinhlobo zezinkinga ngaphambilini.
Okunye ukwehluleka okuvamile, okucashile ukugqwala kwe-galvanic kuma-assemblies. Ukusebenzisa isikulufu sensimbi engagqwali endaweni ye-aluminium yengalo yesithwebuli esingasindi kungase kubonakale kukuhle, kodwa uma kukhona izinto ezithile zokuhlanza, kungase kumise iseli elonakalisayo. Ingxenye ayihluleki ngokushesha; yehluleka ngemva kwezinyanga zokusetshenziswa, ngokuvamile ngaphandle kwesikhathi sewaranti. Ukuhlaziywa kokuhambisana kokubalulekile esigabeni sokuklama kuyisinyathelo esingaxoxisana ngaso esivame ukunganakwa.
Ubambiswano Olungokoqobo
Ukuthenga izingxenye zemishini yezokwelapha akulona i-oda lokuthenga lokuthenga. Ukusebenzisana kobuchwepheshe okuqala kudala ngaphambi kwe-RFQ. Imiphumela engcono kakhulu yenzeke lapho umklami wezinto zokusebenza esebenzisana nozakwethu wokukhiqiza phakathi nesigaba sokuphrotha. Ingabe lelikhona langaphakathi linganwetshwa kancane ukuze kuthuthukiswe impilo yamathuluzi ngaphandle kokuthinta umsebenzi? Ingabe lobu gqinsi bodonga bungenziwa umfaniswano ukuze kugwenywe ukucwila ekubunjweni?
Uzakwethu onamakhono ahlanganisiwe—kusuka ekulingiseni kuye CNC imishini- inikeza umbono ophelele. Bangacebisa ukuthi ingxenye eklanywe njengokushisela ngomshini ingase ikhiqizwe ngendlela ethembeke kakhulu njengokulingisa kwesiqephu esisodwa esinomshini omncane wokuqeda, ukuthuthukisa ubuqotho besakhiwo kanye nokunciphisa amaphuzu angaba khona okungcola. Lolu hlobo lokokufaka kokuklama-ukwenziwa luyigugu futhi luvela kulokho okwenzekayo kuwo wonke uchungechunge lokukhiqiza.
Ekugcineni, umgomo uwukwethembeka ensimini. Ingxenye akuyona into kubhili yezinto zokwakha; kuyisici esisetshenziswa udokotela athembele kuso. Lowo mbono ushintsha indlela obhekana ngayo nakho konke ukubekezelelana, yonke i-callout yokuqeda phezulu, kanye nazo zonke izitifiketi ezibonakalayo. Isusa umsebenzi ekwenziweni okulula ukuya emnikelweni onjiniyela. Futhi lokho, ekugcineni, yikho okuhlukanisa umphakeli wempahla kumlingani wangempela wokukhiqiza wemboni yezokwelapha.
