光學(xué)晶體材料超精密拋光機(jī)理及加工工藝的研究.pdf

1、分類(lèi)號(hào)：—TN3—052UDC：Y931096密級(jí)：——編號(hào)：光學(xué)晶體材料超精密拋光機(jī)理及加工工藝的研究STUDYANDEXPERIMENToNULTRAPRECISIONPOLISHINGOFOPTICALCRYSTALMATERIALS學(xué)位授予單位及代碼：蘭盔壟三盤(pán)塋f!Q!2學(xué)科專(zhuān)業(yè)名稱(chēng)及代碼：鹽盤(pán)塹墨當(dāng)垡塋(Q!Q』Q12研究方向：出堂撾盤(pán)塹三申請(qǐng)學(xué)位級(jí)別：亟指導(dǎo)老師：土絲盤(pán)墼握答辯委員會(huì)主席：——型量壘整拯研究生：選垡論文起止

2、時(shí)間：20031I200412論文評(píng)閱人：型墾熬撞籃量生塾握StudyandexperimentonUltraprecisionPolishingofOpticalCrystalMaterialsOpticalcrystalmaterialshavefoundmoreandmoreimportantapplicationinmodemopticsandelectronicsOpticalpolishingisstilloneofthem

3、ostcommonprocessformaterialsurfaceThemethodaimsatremovingtheimperceptibleroughnessandimprovingthefaceshapeaccuracyFromthepmeisionmanufacturingtechnique，thequalityandlireofworkpieeewillbeadvancedWiththedevelopmentofscienc

4、etherearemoreandmorerequirementsforpolishingmethod，whichurgesscientiststopropeintonewmanufacturingtechniquesInthisthesisthebackgroundofthelatestdevelopmentinthefieldofultraprecisionpolishingisreviewedByanalyzingandcornpa

5、ringthecurrentultraprccisionmachiningtechniquesforopticalmaterialtheconclusionthatthe“contactless—polishing’’and“green—polishing”willbethedevelopmentalaspectsinthefutureiSdrawnnepolishingmechanismandthekeytechniqueforult

6、rasmoothsurfacearestudiedinthisthesisFromtheaspectofkinematics，two—kindmodelsofrelativemovementbetweenpolishingfilmandwork—pieceareestablishedandthebestparametersforpolishingarediscussedWiththemeasureofpressure，rotatespe

7、edandpolishingtime，thevarietyoffaceaccuracyiSanalyzedfromusingthedifferentpolishingfilmmaterials(nonslubedpolishingcloth，pitch，coppertin)ThestressfieldofcuttingzoneiSanalyzedbytheload—penetrationlawThesurfacestressiscalc

8、ulatedintermsofsinglepointcuttingandlooseabrasivepolishing，andthevarietyofpressureinpolishingstressfieldiSinvestigatedInpolishingzonecracksinitiateintheregionofmaximumequivalentstressinthevicinityofthegrainedgeandthenpro

9、pagateinthedirectioncoincides、ⅣimminimumgradientofequivalentstressfieldnlelargerthepressurethedeeperthecrackspropagateFromthegeneralanalyeofexperiment，theeffectiveparametersareachievedThecrystalofNd：YAGiSpolishedthrought