Uburhabaxa boMphezulu kwiMveliso: Umlinganiselo, imiba echaphazelayo kunye noNciphiso
Uhlaziyo lokugqibela: 09/01, ixesha lokufunda: 5 imiz
Ukugqitywa koMphezulu orhabaxa
Masiqonde uburhabaxa bomphezulu kunye nekota yokugqiba.Inkqubo yokugudisa umphezulu weendawo ezenziweyo kunye neemveliso zaziwa njengokugqitywa komphezulu, okuhlolwa kusetyenziswa uburhabaxa bomphezulu.Eyona parameter idumileyo yobungakanani bemathematika boBurhabaxa yi-Ra.Ibonisa i-arithmetical mean itenxa kumphezulu.I-R encinciakuthetha ukwakheka okugudileyo.
Uburhabaxa bomphezulu bubugxwayiba boburhabaxa bomphezulu olwenziwa luluhlu lwecrest kunye nezakhiwo zomkhombe.Ezi crests kunye nemikhombe inokuba yi-microscopic kwaye ibonakale, kuxhomekeke kwinqanaba lobunzima.Umgangatho womphezulu wemathiriyeli ekrwada okanye iimveliso ezigqityiweyo ubalulekile kwishishini lemveliso.Ayingomtsalane wobuhle kuphela kodwa ikwachaphazela ukusebenza kwamalungu kunye nomgangatho uwonke.
Umlinganiselo woBuburhabaxa boMphezulu
Iprofayile yomphezulu orhabaxa
Uburhabaxa bomphezulu bubonakaliswa ngu“Ra,“kwaye iyunithi yayo ziimicrons (µ).U-Ra unika umahluko ophakathi phakathi kwe-crest (ubude) kunye ne-trough (ubunzulu) kumphezulu phezu kobude bokulinganisa.
Umlinganiselo womphezulu ubalulekile ekuveliseni iindawo ezithembekileyo nezingaguquguqukiyo kunye neemveliso kwimveliso echanekileyo.Ngoko ke, iiparamitha zomphezulu kufuneka zilinganiswe kwaye zibekwe iliso kwiinkcukacha ezifunekayo.Umzekelo, ukulinganisa uburhabaxa bomphezulu lisango lokufezekisa ukugqitywa komphezulu ofunekayo.
1. Umlinganiselo ngeprobe.
Le yindlela yoqhagamshelwano yokulinganisa uburhabaxa bomphezulu.Ukuthatha uMlinganiselo, i-probe okanye i-stylus kufuneka ichukumise umphezulu.
Umlinganiselo woBurhabaxa kunye neprobe
I-skid ishukuma kuqala ukuseka ireferensi, kwaye iprobe ilandela ngasemva ukuhamba ngaphezulu komphezulu kunye nemikhombe ngelixa ithumela imiqondiso yombane ukuphuhlisa iprofayile yomphezulu.Emva koko, uburhabaxa bomphezulu bunokufumaneka kwiprofayili eyenziwe.
2. Iprofilometry yamehlo
Le ndlela usamaza okukhanya okanye amaza esandi.Isixhobo sithumela amaza e-ultrasonic kumphezulu kwaye sifumana ukubonakaliswa.Indawo ye-wave ebonakalisiweyo isetyenziselwa ukwenza iprofayili yomhlaba we-3D kwaye ubale uburhabaxa.
Uburhabaxa iprofayile ye-3D evela kwiprofilometry yamehlo
3. Ukuthelekisa
Kule ndlela, umenziUthelekisa umphezulu wemveliso kunye nemveliso kunye neendawo ezilinganiswe ngaphambilikwaye bakhethe esona sikufutshane besebenzisa ingqiqo yabo.Nangona akuyona indlela echanekileyo kakhulu, ingasetyenziselwa apho ukuchaneka okuphezulu kungadingeki, kwaye ukupeyinta okuqhubekayo kuya kusetyenziswa phezu komhlaba.
Uburhabaxa Vs.Ukwenziwa kwemveliso
Esinye sezalathisi eziphambili zokusebenza kumalungu awenziweyo buburhabaxa.Amanqanaba abalulekileyo oburhabaxa bomphezulu akhokelela kwiintanda ngelixa kusetyenziswa kwaye kuphuhlise ukwenzeka komhlwa okugqithileyo xa evezwe kokusingqongileyo.Ukongeza, uburhabaxa bunokunciphisa ukusebenza kakuhle kwaye ekugqibeleni bonzakalise inkqubo yomatshini apho ukukhuhlana okuphantsi kuyafuneka kuba umphezulu ongaqhelekanga wonyusa ingxabano phakathi kwamalungu.
Ngokuxhomekeke kwisicelo, icandelo ngalinye lomatshini linomlinganiselo ophezulu ohlukileyo wobunzima bomphezulu.Umzekelo, izinto apho ukukhuhlana kuyinkxalabo kunonyamezelo oluphantsi kuBurhabaxa kuba imisebenzi iba nzima, kunye necandelo liyaqhekeka xa uburhabaxa buphezulu kakhulu.
Imisonto kunye nomphezulu wokukhwelana unokuba nomlinganiselo ofanelekileyo woBurhabaxa kuba oku akuphazamisi ukukhwelana kwaye kuququzelela ukulingana okufanelekileyo phakathi kwamalungu.Kwakhona, umphezulu apho umzobo uyimfuneko uqwalasela iqondo elithile le-Rughness, eliphuhlisa ukunamathela kwaye lenze inkqubo ibe lula.
Uburhabaxa bomphezulu kwimisebenzi ethile eqhelekileyo yokwenziwa
| Ukusebenza | Ra(Ubuninzi) | Ra(ubuncinci) |
| Ukusika iFlame | 25 | 12.5 |
| Ukugaya | 6.3 | 0.8 |
| Broaching | 3.2 | 0.8 |
| Ukucwangcisa, ukuBumba | 12.5 | 1.6 |
| Ukugrumba | 6.3 | 1.6 |
| Ukugaya imichiza | 6.3 | 1.6 |
| Khetha.Ukukhupha Machining | 4.75 | 1.6 |
| Utyalo-mali lokuCasa | 3.2 | 1.6 |
| Isanti yokuphosa | 25 | 12.5 |
| Ukusila | 1.6 | 0.1 |
| Ukuhlonipha | 0.8 | 0.1 |
| Electro-Polish | 0.8 | 0.1 |
| Ukugudisa | 0.4 | 0.1 |
| ILaser | 6.3 | 0.8 |
| Kuyadika, Ukujika | 6.3 | 0.4 |
Amaxabiso obunzima bomphezulu kwimisebenzi eyahlukeneyo
Iimpawu zoburhabaxa boMphezulu
Masiqale sixoxe ngezifinyezo ezisetyenziswe kwiisimboli phambi kokuba sidlulele kwiisimboli ngokwazo.Ukuba ujonga iimpawu zokugqiba umphezulu kwimizobo yokuvelisa, uya kubona iintlobo zezifinyezo.
|
| Intsingiselo |
| Ra | I-avareji yoburhabaxa bomphezulu, i-arithmetic ithetha yazo zonke iindawo eziphakamileyo zeencochoyi ukusuka kumgca wereferensi.
|
| Rmax | Ubuninzi bomgama othe nkqo phakathi kwecrest kunye nomkhombe |
| Rz | I-avareji yobude obuphezulu beecrests ezi-5 eziphezulu, |
| · Rt | Ubude bubonke benkangeleko yoburhabaxa |
Uluhlu lwezifinyezo
Iimpawu zoburhabaxa bomphezulu
| a | Ixabiso lokurhabaxa kwi-micrometer ( µm) |
| b | Indlela yokuvelisa |
| c | Ubude besampulu yoburhabaxa ( mm okanye i-intshi) |
| d | isalathiso somphezulu silala |
| e | Ubuncinci bemfuno yokususwa kwezinto (mm) |
| f | umndilili wobude bencopho |
Intsingiselo yeenguqu ezisetyenziswa kwiisimboli
Ngokuhlalutya iisimboli ezirhabaxa kumphezulu wokwenza umzobo, abayili kunye nabaqhubi banokunxibelelana nemeko yokugqitywa komphezulu kulo naliphi na icandelo lomatshini.
Umzekelo, umqhubi we-CNC unokumisela kumzobo wabayili ukuba zininzi kangakanani izinto ekufuneka zisuswe kumphezulu ngexesha lokugqiba.
Zeziphi izinto ezichaphazela umgangatho woburhabaxa bomphezulu?
Ezi zinto zintathu zilandelayo zichaphazela uburhabaxa bomphezulu;Ukusebenza kokusika, Ukugaya, kunye nokulawula iiparamitha (Ukusika isantya & izinga lokutya).
1. Ukusika ukusebenza
Emva kokuba umsebenzi wokusika ugqityiwe nge CNC machining, isixhobo sokusika sishiya intsalela kwindawo yokusika ngenxa yoxinzelelo ngexesha lokukhululwa kwesixhobo kwi-workpiece.
Le ntsalela (ebizwa ngokuba yi-burr) ikwachaphazela uzinzo oluyimfuneko lwamalungu.Ezi zinto zilandelayo ziya kugqiba ubungakanani kunye nobuninzi beentsalela kwindawo eshiywe sisixhobo sokusika.
- Ukutenxa kwi-angle yokusika
- Isixhobo sokuphambuka kwiradiyasi
- Izinga lokutyisa
- deformation ngexesha lokusika
2. Ukusila
Inkqubo yokugaya ekuveliseni isebenzisa imidiya eqinileyo, i-abrasive yokusila, kwaye ubushushu bunokufikelela phezulu njenge-1500 ° C ngexesha lenkqubo.Umphetho wamasuntswana abrasive uya kuvelisa ukuhamba kobushushu beplastiki ngenxa yobushushu obuphezulu bokusebenza, bushiya uburhabaxa obuncinane phezu komhlaba.
3. Isantya sokusika kunye nesantya sokutya
Isantya esiphezulu sokusika sonyusa ukubunjwa kweetshiphusi, kwaye ubungakanani beetshiphusi buya kuba banzi.Ngenxa yoko isixhobo siya kushiya i-burrs ngaphezulu kumphezulu ngenxa yokuba isantya esiphezulu sokusika siya kwandisa ukungqubuzana phakathi kwesixhobo kunye nomgangatho wokusika, ukwandisa ixabiso le-Ra.Kwakhona, izinga eliphezulu lokutya liya kwandisa ukuphakama kweentsalela kumphezulu.
Ndingabunciphisa njani uburhabaxa bomphezulu?
· Cwangcisa izinga lokutya elifanelekileyo kuba izinga eliphezulu lokutya libangela ukuba intsalela yenze indawo yokusika.Ukunciphisa uburhabaxa, sebenzisa ulwelo olusebenzayo lokusika kunye nezixhobo zokusika ezichanekileyo.
· Ii-angles eziphambukayo eziphezulu zivelisa ii-burrs ze-machining kunye namanqaku kumphezulu, ngoko ke zinciphise.
· Ngenxa yokuba ukunxitywa kwesixhobo kwandisa uburhabaxa bomphezulu, lungisa ukucola phambi kokuba usile.
· I-friction yanda ngokungcangcazela kwizixhobo zomatshini, obangela ukuba umphezulu ube rhabaxa.Ke ngoko, ngaphambi kokuba uqhubeke nomsebenzi womatshini, nciphisa ukungcangcazela kwaye wongeze ulwelo lokusika.
· Khetha izixhobo zesixhobo sokwenza izinto ezisekelwe kwiimpawu zezinto eziluhlaza.Ngokomzekelo, ukuba wenza izinto ezinzima, sebenzisa izixhobo ze-carbide ezinezikhokelo.Isixhobo kufuneka kwakhona sibe ngokufanayo.
Ukuqukumbela
Umphezulu kufuneka usoloko uwela ngaphakathi kwemida ethile yoburhabaxa ngexesha lenkqubo yokwenziwa kwenkqubo yokwenziwa ngokweenkcukacha zecandelo lomatshini.Ra icebisa ukuba kufuneka samkele okanye sikhabe iprojekthi malunga nokugqitywa komphezulu.Iprofilometer ibala uburhabaxa bomphezulu we-arithmetic ngokumisela umndilili wobude bezitenxo ezenza icandelo loburhabaxa kumgca wereferensi.
Kunyango loburhabaxa bomphezulu, ukusetyenzwa okungaphezulu kuyafuneka, njengokucolwa, ukucola, nokupolisha.Ezi ndlela zinceda ukufumana ixabiso loburhabaxa ngaphakathi komda onqwenelekayo.Nangona kunjalo, le post-processing yongeza kwiindleko zokwenziwa, ngoko ke kungcono ukuqwalasela i-roughness factor kuyilo lwemveliso kunye nenkqubo yokuvelisa.ProleanHubinabayili kunye neenjineli ezigqwesileyo kulawulo lwenkqubo kunye nokugqitywa komphezulu.Zive ukhululekile ukubaQhagamshelana nathiukuba ufuna nayiphi na iprojekthi ewela kumda ofunekayo woburhabaxa.
Ii-FAQ's
Yintoni uburhabaxa bomphezulu?
Uburhabaxa bomphezulu yiparameter enika umbono wokugqitywa komphezulu kwiindawo ezenziweyo kunye nempahla.Ixela izitenxo zomphezulu kwaye kufuneka ibe ngaphakathi komda ofunekayo.
Ngaba umphezulu orhabaxa unempembelelo kumgangatho wemveliso?
Ewe, imiphezulu eRock inamandla aphezulu okubola kunye neentanda.Kwakhona, kuchaphazela ukuthanjiswa kwamalungu.
Ngaba uburhabaxa bunesicelo esilungileyo?
Ewe, uburhabaxa bomphezulu bunokuba luncedo xa umzobo kufuneka ufakwe kuba kwandisa ukuncamathelisa.Kwakhona, iindawo eziza kukhwelana azikhathali ngoburhabaxa.
Lithetha ukuthini igama elithi Ra?
I-Ra yaziwa ngokuba yi-avareji yoburhabaxa bomphezulu, indlela yokubala yazo zonke iindawo eziphakamileyo zeencochoyi ukusuka kumgca wereferensi.
Zeziphi iindlela eziqhelekileyo zokulinganisa uburhabaxa bomphezulu?
Uthelekiso kunye netshathi yoburhabaxa eqhelekileyo, Umlinganiselo kunye neprobe, kunye ne-Optical profilometry zezona ndlela zintathu zomgangatho wokulinganisa uburhabaxa bomphezulu.
Ixesha lokuposa: Jul-05-2022