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ID:36464420
大小:2.85 MB
页数:81页
时间:2019-05-10
《激光冲击成形中冲击方法的研究》由会员上传分享,免费在线阅读,更多相关内容在学术论文-天天文库。
1、江苏大学硕士学位论文激光冲击成形中冲击方法的研究姓名:金川申请学位级别:硕士专业:机械电子工程指导教师:殷苏民20050601江苏大学硕士学位论文ABSTRACTLasermachiningistheimportantappliedfieldoflasertechnology.Althoughincision,joinlingandheattreatmentbylaserhavebeenwidelyappliedinmanymanufacturesuchasautomobile,siftpbuilding,aviationandgener
2、almechanicalmanufacture,it’Sthefirstthatsheetmetalareshapedbylasershockinthehome.Inordertoadapttomarketcompetitionneedsofrapidproductupdateofthemodemmanufactureandtoachievesheetmetalproductionneeds,rapid,effectiveandlow-cost,manyresearchershomeandabroadhavedonelotsofstudi
3、esfrommuhipoint,progressiveformingtoshotblastingforming,laserbendingformingbythermalstressetc.Andtheyhaveachievedsomeproductions.ItseemsthatitisthesignificanttrendtogettOshockformingofrapid,efficient,andflexibleformthedevelopmentalaim.Onthebasicofanalyzingresearchesabouts
4、heetmetalformingwithoutmould,ourschoolteachersputforwardanewconceptfirstlyaboutshapechangeofsheetmentalbylasershockforming(LSF)andhavingsystemicstudiesinordertodiscovernewmethodappliedinthefieldofsheetmetal.InordertoimplementLaserShockForming,it’Sveryimportanttoplanthefor
5、mingtechnicsandthenachievetheshockroutesinadditiontounderstandthetheoryoflaserShockFormingandthesheetmetal’Scharacterafterbeingshocked.Thisthesismainlybasedontheinterplaybetweenlaserandsubstance,thensetdownformingtechnicsSOastoexploitcomputersimulativeandcontrolsoftwarefo
6、rlasershockformingoflargearea.Alsoundertheexistingexperimentcondition,theexperimentationofthedeformationofsheetmetalbylasershockwasdoneatouruniversity。Slaboratory.Becauseofthelimitofthecondition,weonlyconductedtheplanarexperiments.TothespecimenofLD31orSUS304,theresultsofe
7、xperimentationshowedthatthesematerialssuchashavingadequatehardness,couldbedeformedbylasershockwaveifwateractastheoverlayandblackoilpaintserveasenergyabsorbedlayer.TheexperimentalSOshowedt11atmeasureoffomingworkpieceaccordedwithOurdemandsinthelightofthetrackfilecomputeredb
8、ycontrolledsoftware.ResultsalsoprovidedinformationthatitCanreducetheroughnessofthesurfaceofsampl
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