Iyadoo codsiga ballaaran eealaab caag ah, Dadweynuhu waxay leeyihiin shuruudo sare oo sarreeya oo tayada muuqaalka ah ee alaabta caagga ah, sidaas darteed tayada polishing ee dusha sare ee caaryada caagga ah waa in sidoo kale la hagaajiyaa si waafaqsan, gaar ahaan caaryada dusha sare ee muraayadda muraayadda iyo dusha sare ee dhalaalaya sare. Shuruudaha ayaa ka sarreeya, sidaas darteed shuruudaha polishing ayaa sidoo kale ka sarreeya. Polishing kaliya ma kordhiso quruxda workpiece ah, laakiin sidoo kale waxay hagaajinaysaa iska caabinta daxalka iyo xidho iska caabin ah oogada alaabta, iyo sidoo kale fududayn karaa qaabaynta duritaanka xiga, sida samaynta alaabta caag ah si sahlan in ay u moofo iyo yaraynta wax soo saarka wareegyada qaabaynta duritaanka. Waqtigan xaadirka ah, hababka polishing ee inta badan la isticmaalo waa sida soo socota:
(1) Daahfurka makaanikada
Daalidda makaanikada waa hab dhogorta leh kaas oo dusha siman lagu helo goynta iyo balaastigga dusha sare ee walxaha si meesha looga saaro qaybta qallafsan ee dhalaalaya. Guud ahaan, xariijimaha dhagxaanta, giraangiraha dhogorta, warqad ciid ah, iwm. ayaa la isticmaalaa. Isticmaalka qalabka caawinta sida weel-wareejinta, shiidida aadka u fiican iyo hababka turxaan bixinta ayaa loo isticmaali karaa kuwa leh shuruudaha tayada sare ee dusha sare. Shiididda saxda ah ee saxda ah iyo turxaan bixinta waa qalab gaar ah, kaas oo lagu cadaadiyo dusha sare ee workpiece si loogu farsameeyo dareeraha shiididda iyo nadiifinta oo ay ku jiraan abrasive, oo ku wareega xawaare sare. Isticmaalka tignoolajiyadan, qallafsanaanta dusha sare ee Ra0.008μm ayaa lagu gaari karaa, taas oo ah tan ugu sareysa ee hababka polishing ee kala duwan. Muraayadaha muraayadaha indhaha ayaa inta badan isticmaala habkan
(2) polishing Ultrasonic
Workpiece waxaa la dhigayaa in ganaax naxaas ah oo lagu meeleeyaa beerta ultrasonic si wadajir ah, iyo abrasive waa dhulka iyo turub dusha workpiece ah by oscillation ee hirarka ultrasonic. Xoogga macroscopic ee ka baaraandegidda ultrasonic waa yar yahay, mana keeni doonto qallafsanaanta shaqada, laakiin way adag tahay in la sameeyo oo la rakibo qalabka. Mashiinka Ultrasonic waxaa lagu dari karaa hababka kiimiko ama kiimiko kiimiko. Iyada oo ku saleysan daxalka xalka iyo electrolysis, gariir ultrasonic waxaa lagu dabaqaa si loo kiciyo xalka, si alaabooyinka la kala diro dusha sare ee workpiece ay ka go'aan, iyo daxalka ama electrolyte u dhow dusha sare waa lebis; saamaynta cavitation ee mowjadaha ultrasonic ee dareeraha ah ayaa sidoo kale hor istaagi kara habka daxalka, kaas oo ku haboon in ay iftiimin dusha.
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(3) Dareemidda dareeraha
Daalidda dareeraha waxay ku tiirsan tahay dareeraha qulqulaya xawliga sarreeya iyo qaybaha xoqan ee ay sido si ay u xoqdo dusha sare ee qalabka shaqada si loo gaaro ujeedada dhalaalidda. Hababka sida caadiga ah loo isticmaalo waa: machining jet abrasive, dareere jet machining, hydrodynamic shiidi, iwm Hydrodynamic shiidi waxaa kaxayn by cadaadis Haydarooliga, si dhexdhexaad ah dareere sidda Qurub abrasive socodka reciprocatingly guud ahaan dusha workpiece at xawaaraha sare. Dhexdhexaadku wuxuu inta badan ka samaysan yahay xeryahooda gaarka ah (walxaha polymer-u eg) oo leh qulqulo wanaagsan oo cadaadis hooseeya oo lagu qaso abrasives, iyo abrasives waxay noqon karaan budada carbide silicon.
(4) Shiididda iyo turxaan bixinta magnetka
Shiididda magnetic iyo turxaan bixinta waa in la isticmaalo abrasives birlab ah si ay u sameeyaan burush abrasive hoos falgalka garoonka magnetic si ay u shiiddo workpieces. Habkani waxa uu leeyahay waxtarka processing sare, tayada wanaagsan, xakamaynta fudud ee xaaladaha processing iyo xaaladaha shaqada wanaagsan. Iyada oo leh nabar ku habboon, qallafsanaanta dusha sare waxay gaari kartaa Ra0.1μm.
Daahfurka habaynta caaryada caaga ah aad ayuu uga duwan yahay suufka dusha sare ee looga baahan yahay warshadaha kale. Si adag u hadla, nadiifinta caaryada waa in lagu magacaabaa farsamaynta muraayadda. Ma aha oo kaliya in ay leedahay shuruudo sare oo loogu talagalay is-qurxinta lafteeda, laakiin sidoo kale heerar sare oo loogu talagalay fidsanaanta dusha sare, simanaanta iyo saxnaanta joomatari. Naaxinta dusha sare ayaa guud ahaan loo baahan yahay oo kaliya si loo helo oog dhalaalaysa
Heerka farsamaynta muraayada waxa loo qaybiyaa afar darajo: AO=Ra0.008μm, A1=Ra0.016μm, A3=Ra0.032μm, A4=Ra0.063μm Si kastaba ha ahaatee, tayada dusha sare ee polishing kiimikada, polishing ultrasonic, shiidi magnetic iyo hababka polishing ma buuxin karo shuruudaha, sidaas darteed farsamaynta dusha muraayadda ee caaryada saxda ah ayaa weli ku badan polishing farsamada.
Waqtiga boostada: Meey-11-2022
