CNC machining izingxenye zepulasitiki

NakubaCNC imishinikwezingxenye zepulasitiki kulula ukusika, futhi kunobunzima obuthile, njengokuguquguquka okulula, ukungahambi kahle kokushisa okushisayo, futhi kuzwela kakhulu kumandla okusika, ukunemba kwayo kokucubungula akuqinisekisiwe, ngoba kulula ukuthonywa izinga lokushisa, futhi kulula ukukhiqiza ukuguqulwa ekucubunguleni, kodwa sinezindlela zokubhekana nayo.Izinyathelo zokuqapha ukuze zigwemeCNC machining izingxenye zepulasitiki:

1. Ukukhetha ithuluzi:

•Njengoba impahla yepulasitiki ithambile, kufanele kukhethwe amathuluzi abukhali. Isibonelo, kuma-prototypes epulasitiki e-ABS, amathuluzi e-carbide anemiphetho ebukhali yokusika anganciphisa ngempumelelo izinyembezi nama-burrs ngesikhathi sokucubungula.

•Khetha amathuluzi asekelwe ekubunjweni nasemininingwaneni eyinkimbinkimbi ye-prototype. Uma i-prototype inezakhiwo zangaphakathi ezithambile noma izikhala ezincane, lezi zindawo zizodinga umshini onembile kusetshenziswa amathuluzi amancane afana nezigayo zokuphela kwebhola ezinobubanzi obuncane.

2. Ukusika izilungiselelo zepharamitha:

•Isivinini sokusika: Indawo yokuncibilika yepulasitiki iphansi kakhulu. Ukusika ngokushesha kungabangela kalula ipulasitiki ukuthi ishise futhi inyibilike. Ngokuvamile, isivinini sokusika singashesha kunaleso sokwenza izinto zensimbi, kodwa kufanele silungiswe ngokusekelwe ohlotsheni oluthile lwepulasitiki nezimo zamathuluzi. Isibonelo, lapho ucubungula ama-prototypes e-polycarbonate (PC), isivinini sokusika singasethwa sibe cishe ku-300-600m/min.

•Isivinini sokuphakelayo: Isivinini sokuphakelayo esifanelekile singaqinisekisa ikhwalithi yokucubungula. Izinga lokuphakela ngokweqile lingase libangele ithuluzi ukuthi lithwale amandla okusika ngokweqile, okuholela ekwehleni kwekhwalithi yendawo ye-prototype; isilinganiso esincane kakhulu sokuphakela sizonciphisa ukusebenza kahle kokucubungula. Kuma-prototypes epulasitiki ajwayelekile, isivinini sokuphakela singaba phakathi kuka-0.05 - 0.2 mm/izinyo.

•Ukujula kokusika: Ukujula kokusika akufanele kujule kakhulu; ngaphandle kwalokho, amandla amakhulu okusika azokhiqizwa, angase akhubaze noma aqhekeze i-prototype. Ngaphansi kwezimo ezijwayelekile, kunconywa ukuthi ukujula kokusika okukodwa kulawulwe phakathi kuka-0.5 - 2mm.

3. Ukukhethwa kwendlela yokubopha:

•Khetha izindlela zokubopha ezifanele ukuze ugweme ukulimaza indawo ye-prototype. Izinto ezithambile ezifana namaphedi enjoloba zingasetshenziswa njengesendlalelo sokuxhumana phakathi kwe-clamp kanye ne-prototype ukuvimbela umonakalo wokubamba. Isibonelo, lapho uqinisa i-prototype ku-vise, ukubeka amaphedi enjoloba emihlathini akugcini nje ngokuqinisa i-prototype ngokuphephile kodwa futhi kuvikela indawo yayo.

•Lapho ucindezela, qinisekisa ukuzinza kwe-prototype ukuze uvimbele ukufuduka ngesikhathi sokucubungula. Kuma-prototypes anomumo ongajwayelekile, ukulungisa ngokwezifiso noma okuhlanganisiwe kungasetshenziswa ukuze kuqinisekiswe indawo yazo egxilile phakathi nokucubungula.

4. Icubungula ukuhlela ukulandelana:

•Ngokuvamile, ukukhanda ngamawala kwenziwa kuqala ukuze kukhishwe ingxenye enkulu yemali, kushiye cishe u-0.5 – 1 mm wesibonelelo sokuqeda. I-roughing ingasebenzisa amapharamitha amakhulu okusika ukuze kuthuthukiswe ukusebenza kahle kokucubungula.

•Lapho uqeda, kufanele kuqashelwe ukuqinisekisa ukunemba kwe-dimensional kanye nekhwalithi ephezulu ye-prototype. Kuma-prototypes anezidingo zekhwalithi ephezulu, inqubo yokugcina yokugcina ingahlelwa, njengokugaya ngesivinini esincane sokuphakela, ukujula okuncane kokusika, noma ukusebenzisa amathuluzi okupholisha ukuze kulungiswe indawo.

5. Ukusetshenziswa kwesipholile:

•Lapho ucubungula ama-prototypes epulasitiki, qaphela lapho usebenzisa okokupholisa. Amanye amapulasitiki angase asabele ngamakhemikhali nesipholile, ngakho-ke khetha uhlobo olufanele lwesipholile. Isibonelo, kuma-polystyrene (PS) prototypes, gwema ukusebenzisa izinto zokupholisa eziqukethe izinyibilikisi ezithile eziphilayo.

•Imisebenzi esemqoka yezinto ezipholile ukupholisa nokuthambisa. Phakathi nenqubo yokwenza imishini, isipholile esifanele singehlisa izinga lokushisa lokusika, sinciphise ukuguga kwamathuluzi, futhi sithuthukise ikhwalithi yomshini.