.
Mhinduro: Parizvino, tekinoroji yakakura yekukuya vhiri rekupfeka ndeiyi:
(1) ELID yepamhepo electrolytic dressing tekinoroji;
(2) EDM kukuya vhiri rekupfeka tekinoroji;
(3) Cup yekukuya vhiri rekupfeka tekinoroji;
(4) Electrolysis-mechanical composite kuumba teknolojia
12. Kukuya nemazvo chii?Edza kutsanangura muchidimbu musimboti wekusarudza wekukuya vhiri mukugaya chaiko kwevhiri rinogaya.
Mhinduro: Kugaya kwakanyatso kunoreva kusarudza vhiri rekukuya pamushini wekukuya, uye nekupfekedza vhiri rekukuya, zviyo zvinoputika zvine micro-edge uye contour properties.Iwo mavanga ekukuya akanyanya kunaka, kureba kwakasara kudiki zvakanyanya, uye mhedzisiro yeiyo isiri-spark yekukuya nhanho inowedzerwa, uye nzira yekukuya pamusoro neiyo machining yekururamisa kwe1 kusvika 0.1 mm uye roughness Ra ye0.2 kusvika 0.025 mm inowanikwa.
Kusarudzwa musimboti wekukuya vhiri mukunyatso kugaya kweyakajairika vhiri rekukuya:
(1) Iyo abrasive yevhiri rekukuya rinoshandiswa mukugaya chaiko kunobva pamusimboti wekuve nyore kugadzira uye kuchengetedza micro-edge uye contour yayo.
(2) Kukuya vhiri particle size?Tichifunga nezve geometric factor chete, iyo yakatsetseka iyo inokuya vhiri particle size, iyo idiki iyo yepamusoro roughness kukosha kwekukuya.Nekudaro, kana zvimedu zveabrasive zvanyanya kunaka, kwete chete vhiri rekukuya rinovharika nyore nekukuya marara, asi kana thermal conductivity isina kunaka, inokonzeresa kupisa uye zvimwe zviitiko pamichina yakashongedzwa, izvo zvinowedzera kushata kwepamusoro. value..
(3) Kukuya vhiri bhinda?Kukuya mavhiri mavhiri anosanganisira resin, simbi, ceramics, nezvimwewo, uye resin inoshandiswa zvakanyanya.Kune mavhiri ekukuya-grained, vitrified bond inogona kushandiswa.Metal neceramic binders chinhu chakakosha chetsvagiridzo mumunda wekukuya nemazvo.
13. Ndeapi maitiro ekurukisa kukuya nemavhiri ekukuya anopisa?Nzira yekusarudza chiyero chekukuya?
Mhinduro: Hunhu hukuru hwekukuya superabrasive grinding vhiri ndeiyi:
(1) Inogona kushandiswa kugadzirisa zvakasiyana-siyana kuoma kwakanyanya uye yakakwirira brittleness simbi uye isiri-simbi zvinhu.
(2) Kugona kwakasimba kwekukuya, kupfeka kwakanaka kuramba, kusimba kwepamusoro, kunogona kuchengetedza kuita kwekukuya kwenguva yakareba, nguva shoma yekupfeka, nyore kuchengetedza particle size;nyore kudzora saizi yekugadzirisa uye kuona kugadzirisa otomatiki.
(3) Simba rekukuya idiki uye tembiricha yekukuya yakadzikira, kuitira kuti kushushikana kwemukati kuderedze, hapana hurema hwakadai sekutsva nekutsemuka, uye iyo michini yepamusoro mhando yakanaka.Kana dhaimondi richikuya vhiri rinokuya simende carbide, simba rayo rekukuya rinongori 1/4 kusvika 1/5 yegreen silicon carbide.
(4) Kukwirisa kwakanyanya.Paunenge uchigadzira alloys yakaoma uye isiri-metallic yakaoma uye brittle zvinhu, chiyero chekubvisa simbi yedhaimondi mavhiri ekukuya zviri nani pane iyo cubic boron nitride ekukuya mavhiri;asi kana uchigadzira simbi isingadziviriri kupisa, titanium alloys, simbi inofa uye zvimwe zvinhu, cubic boron nitride ekukuya mavhiri akakwira zvakanyanya padhaimani vhiri.
(5) Mutengo wekugadzirisa wakaderera.Dhaimondi rekukuya vhiri uye cubic boron nitride vhiri rekukuya zvinodhura, asi vane hupenyu hurefu hwebasa uye nepamusoro pekugadzirisa, saka mutengo wakazara wakaderera.
Superabrasive grinding vhiri kugaya dosage kusarudzwa:
(1) Kukuya kumhanya kweasiri-simbi bhondi dhaimani vhiri rekukuya kazhinji 12 ~ 30m/s.Kukuya kumhanya kwecubic boron nitride vhiri rekukuya inogona kunge yakakwira zvakanyanya kupfuura yedhaimani vhiri, uye sarudzo 45-60m/s inonyanya kukonzerwa nekugadzikana kwekupisa kwe cubic boron nitride abrasive.
(2) Kudzika kwekuya kunowanzo 0.001 kusvika 0.01 mm, iyo inogona kusarudzwa maererano nenzira yekukuya, abrasive particle size, binder uye mamiriro ekutonhora.
(3) The workpiece kumhanya kazhinji 10-20m/min.
(4) Longitudinal feed speed?Kazhinji 0.45 ~ 1.5m/min.
14. Chii chinonzi ultra-precision grinding?Edza kutsanangura muchidimbu maitiro ayo, maitiro uye mashandisirwo.
Mhinduro: Ultra-chaiyo kugaya inoreva nzira yekukuya vhiri ine machining echokwadi isingasviki 0.1mm uye roughness yepasi isingasviki Ra0.025mm., Iron materials, ceramics, glass and other hard and brittle materials processing.
Ultra-chaiyo yekukuya michina:
(1) Abrasive particles anogona kutorwa semuviri wakapetwa une elastic rutsigiro uye hombe yakaipa rake angle yekucheka mupendero.Rutsigiro rweelastiki inhengo inosunga.Kunyangwe iwo maabrasive particles ane kuomarara kwakakura uye deformation yawo idiki kwazvo, ichiri maelastomers.
(2) Kudzika kwekucheka kweabrasive yekucheka zviyo zvishoma nezvishoma kunowedzera kubva ku zero, uye zvishoma nezvishoma kunoderera kusvika ku zero mushure mokunge yasvika pakukosha kukuru.
(3) Iyo yese yekubata maitiro pakati peabrasive zviyo uye workpiece inoteverwa ne elastic zone, nzvimbo yepurasitiki, yekucheka nzvimbo, nzvimbo yepurasitiki uye elastic zone.
(4) Mu-ultra-precision grinding, micro-kucheka chiito, kuyerera kwepurasitiki, elastic kuparadza chiito uye sliding action inooneka munhevedzano maererano nekuchinja kwekucheka mamiriro.Kana blade yakapinza uye ine humwe hudzamu hwekukuya, iyo micro-cutting effect yakasimba;kana blade isina kupinza zvakakwana, kana kudzika kwakadzika kwakanyanya, kuyerera kwepurasitiki, kukuvara kwe elastic uye kutsvedza kuchaitika.
Zvimiro zveUltra Precision Grinding:
(1) Ultra-chaiyo kugaya ipurojekiti yakarongeka.
(2) Superabrasive grinding vhiri ndicho chishandiso chikuru chekupedzisira-chaiyo kugaya.
(3) Ultra-chaiyo kugaya imhando ye-ultra-micro yekucheka maitiro.
Zvishandiso zvekupedzisira-chaizvo kugaya:
(1) Kukuya zvinhu zvesimbi zvakaita sesimbi nemaaloyi ayo, kunyanya simbi yakaomeswa yakagadziriswa nekudzima.
(2) Zvishandiso zvakaoma uye zvakaputsika zvinogona kushandiswa pakukuya zvisiri zvesimbi?Semuenzaniso, ceramics, girazi, quartz, semiconductor zvinhu, zvigadzirwa zvematombo, nezvimwe.
(3) Parizvino, pane kunyanya cylindrical grinders, grinders, grinders yemukati, coordinary grinders uye mamwe ma-ultra-precision grinders, ayo anoshandiswa ku-ultra-precision grinder yekunze kwedenderedzwa, ndege, maburi uye maburi masisitimu.
(4) Ultra-chaiyo kugaya uye Ultra-chaiyo yemahara abrasive kugadzirisa inopindirana.
15. Rondedzera muchidimbu musimboti uye maitiro eELID girazi kugaya.
Mhinduro: Nheyo yeELID girazi rekukuya: Panguva yekukuya, electrolytic grinding fluid inodururwa pakati pegumbo rekukuya uye mudziyo we electrode uye DC pulse current inoshandiswa, kuitira kuti chisungo chesimbi chegumbo rekukuya sezvo anode ine anode. dissolution effect uye inobviswa zvishoma nezvishoma, kuitira kuti The abrasive tsanga dzisina kukanganiswa ne electrolysis protrude kubva pamusoro pekukuya vhiri.Nekufambira mberi kweiyo electrolysis process, dhizaini ye oxide firimu ine insulating properties inoumbwa zvishoma nezvishoma pamusoro pegumbo rekukuya, kudzivirira kuenderera kwe electrolysis process.Kana zviyo zvinoputika zvegumbo rekukuya zvasakara, firimu rekuita Mushure mekukweshwa neworkpiece, iyo electrolysis process inoenderera, uye kutenderera kunotanga zvakare, uye vhiri rekukuya rinoramba rakapfekedzwa nekuita kwe-on-line electrolysis kuwana. nguva dzose inoputika kureba kwezviyo zvinoputika.
Zvinoumba ELID Kukuya:
(1) Kukuya kune kugadzikana kwakanaka;
(2) Iyi nzira yekupfeka inodzivirira vhiri rekukuya dhaimondi kuti risasakara nekukasira uye inovandudza mwero wekushandiswa kwemabrasi akakosha;
(3) ELID yekupfeka nzira inoita kuti nzira yekukuya ive yakanaka controllability;
(4) Kushandisa ELID kugaya nzira, zviri nyore kuwana girazi kugaya, uye inogona kuderedza zvakanyanya kusara kwakatsemuka kweiyo superhard zvinhu kuve zvikamu zvepasi.
16. Chii chinonzi creep feed kugaya?Edza dzidziso yekupisa yekupisa kuti utsanangure chiitiko chekuti tembiricha inononoka kugaya yakadzikira asi zviri nyore kupisa kamwe kamwe.
Mhinduro: Creep Feed Grinding ine mazita akawanda muChina munguva yakapfuura, zvakadai sekukuya kwakasimba, kurema mutoro unorema, kukambaira, kugaya, etc. Ikozvino zita chairo rinofanira kuva Creep Feed Deep Cutting Grinding Grinding, inowanzonzi inononoka kugaya.Chinhu chakasiyana cheiyi maitiro ndeye yakaderera chiyero chekudya, icho chingangoita 10-3 kusvika 10-2 nguva yeyakajairika kugaya.Semuenzaniso, iyo workpiece kumhanya inogona kunge yakaderera se 0.2mm / s panguva yekukuya pamusoro, saka inonzi "inononoka" kugaya.Asi kune rumwe rutivi, kudzika kwekutanga kwekucheka kwakakura, kanenge ka100 kusvika ku1000 pane yekugayawo zvako.Semuenzaniso, kudzika kwemuganho wekuchekwa mukukuya kwakatsetseka kunogona kusvika 20 kusvika 30 mm.
Zvinoenderana nedzidziso yekufashaidza kupisa kuchinjisa mumunda weinjiniya yekupisa, itsananguro yesainzi kune yakajairika inononoka kugaya tembiricha yakadzikira zvakanyanya asi inowanzo kurumidza kutsva.Munguva yekugaya zvishoma, mamiriro ekudziya epamusoro pechishandiso munzvimbo yearc uye pamusoro peiyo inopisa nickel waya yakanyudzwa mudziva zvakangofanana, uye mvura yekukuya muarc zone inewo yakanyanya kupisa flux density qlim. izvo zvinogona kukonzera kupisa kwefirimu.Kukuya zvinoreva kukuya kupisa kunoyerera q <> 120~130℃.
Izvi zvinoreva kuti, zvisinei kuti kudzika kwekucheka kwakakura sei panguva yekukuya zvishoma nezvishoma, ingave 1mm, 10mm, 20mm kana 30mm, chero bedzi mamiriro ekugadzirisa anononoka asangana, tembiricha yepasi yeworkpiece munzvimbo yearc ichaitwa. isingapfuure 120 ~ 130 ℃, chiri zvakare chikonzero chekuti kunonoka kugaya kwakasiyana.Zvakanakira pakugaya zvakajairika.Nekudaro, iyi yakatanhamara tekinoroji mukana wekunonoka kugaya inorasika nyore nyore nekuda kwekutiza kupisa flux density.Kukuya kupisa kuyerera density q haina hukama chete nezvinhu zvakawanda senge zvinhu zvenyama uye kucheka huwandu, asi zvakare zvinoenderana nekupinza kweiyo vhiri rekukuya.Chero bedzi iyo mamiriro q ≥ qlim akasangana, pamusoro pebasa rekushanda munzvimbo yearc ichapiswa kamwe kamwe nekuda kwekukuya kwemvura inopinda mufirimu-inogadzira mamiriro ekuvira..
17. Nzira yekuita sei kuramba uchipfeka mu creep feed grinding?Ndezvipi zvakanakira kugara uchipfeka?
Mhinduro: Iyo inonzi continuous dressing inoreva nzira yekugadzira patsva nekurodza vhiri pakukuya.Nekuenderera mberi kwekupfeka nzira, madhaimondi ekupfeka rollers anogara achisangana negumbo rekukuya.Kuti uone maitiro ane simba ekuenderera mberi kupfekedza vhiri rekukuya uye kuenderera mberi muripo mukuita kwekukuya, yakakosha inoenderera mberi yekugaya muchina unofanirwa kushandiswa.Iyo inoshanduka-shanduka yekupfeka inoenderera inoratidzwa muFigure 2. Iyo yekutanga yekukuya dhayamita yevhiri ndeye ds1, iyo workpiece dhayamita ndeye dw1, uye dhayamita yedhaimondi dressing roller ndeye dr.Munguva yekukuya, kana iyo workpiece radius inoderera nekumhanya kwevfr, nekuda kwekuenderera mberi kwekupfeka, Gumbo rekukuya rinofanira kucheka mukati mekukuya workpiece nekumhanya kwev2 = vfr + vfrd, uye roller yekupfeka inofanira kucheka mugumbo rekuya pa. kukurumidza kwev1 = 2vfrd + vfr, kuitira kuti nzvimbo yekupfeka roller uye gumbo rekukuya rakashanduka.Naizvozvo, michina yekukuya yekuramba ichipfeka mavhiri ekukuya inofanirwa kukwanisa kugadzirisa kwakakodzera kune aya ejometri paramita.
Zvakanakira zvekuramba uchicheka zvakawanda, senge:
1) Nguva yekukuya, iyo inongoenzana nenguva yekupfeka, inobviswa, iyo inovandudza kushanda kwekugadzirisa;
2) Iyo yakareba kureba yekukuya haichatsamira pakupfekwa kwegumbo rekukuya, asi pahurefu huripo hwekukuya hwemuchina wekukuya;
3) Iyo chaiyo yekukuya simba inoderedzwa, simba rekukuya uye kupisa kupisa kunoderedzwa, uye nzira yekukuya yakagadzikana.
18. Kukuya bhandi chii?Rondedzera muchidimbu kuumbwa uye maitiro ebhandi rinoputika.
Mhinduro: Abrasive bhanhire kugaya inzira yekugadzira nzira yekukuya bhandi rinofamba rinoputika richisangana neworkpiece nenzira inopindirana yekubatanidza maererano nechimiro chebasa rekushanda.
Bhandi rinoputika rinonyanya kuumbwa nezvikamu zvitatu: matrix, binder uye abrasive.Iyo matrix itsigiro yeabrasive tsanga uye inogona kugadzirwa nebepa, donje uye kemikari fiber.Mabhainda anowanzo shandiswa anosanganisira mhuka glue, synthetic resin uye musanganiswa wezviviri.Mabhainda anowanzo shandiswa anosanganisira mhuka glue, synthetic resin uye musanganiswa wezviviri.Ghume yemhuka ine kushomeka kwekupisa, kuderera kwesimba rekubatanidza, uye haidziviriri kukukurwa nekucheka mvura, saka inogona kungoshandiswa pakukuya yakaoma;synthetic resin binder ine yakakwira bonding simba uye yakakwirira kupfeka kuramba, yakakodzera kugadzira yakakwirira-kumhanya Heavy duty mabhandi.Iwo mabrasives ekugadzira mabhandi abrasive akajairika corundum, chena uye chromium-ine corundum, single crystal corundum, aluminium oxide, zirconium dioxide, girini uye dema silicon carbide, nezvimwe.
19. Ndedzipi nzira dzekuronga dzeabrasive bhandi kugaya?Ndezvipi zvinetso zvinowanzoitika mukukuya bhandi?
Mhinduro: Zvinoenderana nekugaya nzira, abrasive bhandi kukuya kunogona kukamurwa kuita yakavharwa abrasive bhandi kugaya uye yakavhurika abrasive bhandi kugaya.Abrasive bhandi achikuya anogona kupatsanurwa kuita kuonana vhiri mhando, tsigiro ndiro mhando, yemahara kuonana mhando uye yemahara inoyangarara yekuonana mhando zvinoenderana nekuonana fomu pakati peabrasive bhandi uye workpiece.
Matambudziko anowanzo kuitika mukukwesha bhandi: kuvhara, kunamatira, uye blunt.Mukuwedzera, bhanhire rinoputika rinowanzoonekwa kakawanda kuputsika, kupfeka zviratidzo uye zvimwe zviitiko panguva yekushandiswa.
20. Chii chinonzi ultrasonic vibration grinding?Rondedzera muchidimbu maitiro uye maitiro e ultrasonic vibration grinding.
Mhinduro: Ultrasonic grinding inzira yekugadzira iyo inoshandisa kumanikidzika vibration yegumbo rekukuya (kana workpiece) mukukuya.
Iyo meshini ye ultrasonic vibration kugaya: kana iyo magnetizing simba sosi ye ultrasonic jenareta yatangwa, imwe ultrasonic frequency ikozvino uye DC ikozvino yemagnetization inopihwa kune nickel magnetostrictive transducer, uye alternating ultrasonic frequency magineti uye magnetic field inogadzirwa. mu transducer coil.Iyo inogara iine polarized magnetic field inogonesa transducer kuburitsa longitudinal mechanical vibration simba reiyo frequency yakafanana, iyo inopfuudzwa kunyanga panguva imwe chete, uye amplitude inokwidziridzwa kune yakafanotemerwa kukosha kusunda resonant cutter bar yekucheka vibration.Iyo transducer, nyanga, uye tsvimbo yekucheka zvese zviri muresonance neiyo ultrasonic frequency inobuda nejenareta, ichigadzira resonance system, uye iyo yakatarwa inofanira kunge iri pane inotamisa node.
Zvimiro: Ultrasonic kugaya inogona kuchengetedza zviyo zvinoputika zvakapinza uye kudzivirira chip blocking.Kazhinji, simba rekucheka rinodzikiswa ne30% kusvika 60% zvichienzaniswa neakajairika kugaya, tembiricha yekucheka inodzikiswa, uye kugona kwekugadzirisa kunowedzerwa ne1 kusvika 4 nguva.Uye zvakare, ultrasonic vibration kugaya zvakare ine zvakanakira compact chimiro, mutengo wakaderera, uye nyore kufarirwa uye kushandisa.
Nguva yekutumira: Jul-30-2022