欢迎来到天天文库
浏览记录
ID:52408743
大小:892.50 KB
页数:5页
时间:2020-03-27
《大直径轮式结晶器超声滚压变幅装置的设计.pdf》由会员上传分享,免费在线阅读,更多相关内容在行业资料-天天文库。
1、第6期组合机床与自动化加工技术No.62015年6月ModularMachineTool&AutomaticManufacturingTechniqueJun.2015文章编号:1001—2265(2015)06—0121—04DOI:10.13462/j.cnki.mmtamt.2015.06.033大直径轮式结晶器超声滚压变幅装置的设计术王栋,韩变枝,石良生(1.太原理工大学阳泉学院,山西阳泉045000;2.阳泉铝业股份有限公司,山西阳泉045002)摘要:普通滚压结合超声振动的复合加工是表面强化技术研究和应用发展的主要方向。超声振动可以有效减小滚压力和变形,提
2、高强化效果和增大残余压应力。针对轮式结晶器的滚压技术要求,滚压装置的设计采用分离型超声椭圆振动系统,并选用圆锥形变幅杆。设计时,依据滚压轮和变幅杆各自的动力学特点以及联接处的边界条件来建立数学模型,求解设计参数并设计变幅器。经验设计的计算结果与之比较误差较大,主要是滚压轮的谐振频率误差过大。因此,将滚压轮和变幅杆整体设计的方法是有效的。运用有限元分析法进行验证并修正,设计结果与试验结果一致,提高了变幅装置的设计质量。关键词:超声滚压;结晶器;变幅器设计;有限元分析中图分类号:TH122;TG65文献标识码:ADesignofTransformerDeviceinUlt
3、rasonicBurnishingforLarge-DiameterWheelCrystallizerWANGDong.HANBian—zhi.SHILiang—sheng2(1.YangquanCollege,TaiyuanUniversityofTechnology,YangquanShanxi045000,China;2.ShanxiYangquanAluminumCoLtd.,YangquanShanxi045002,China)Abstract:Thecombinedmachiningofthecommonrollingandultrasonicvibrat
4、ionisthemaindirectionofresearchandapplicationdevelopmentinthesurfacestrengtheningtechnology.Ultrasonicvibrationcaneffec-tivelyreducetherollingcompressivestressanddeformation,improvethestrengtheningeffectandincreasetheresidualcompressivestress.Accordingtotherollingtechnologyrequirementso
5、fwheelcrystallizer,theseparationtypeultrasoniceHipticalvibrationsystemisusedinthedesignofrollingdevice.andcone-shapedhomisadopted.Themathematicalmodelsarebasedontherespectivelydynamiccharacteristicsoftherollingwheelandthehom,includingtheboundaryconditionsontheconnectedsurface.Thesolutio
6、nofdesignpa—rametersisobtained.Thetransformerisdesigned.Bycomparingthenaturalfrequency,thelargeerrorofthecalculationresultsintheempiricaldesignisfound,themainlyreasonsisthelargererrorofresonancefre—quencyonrollingwhee1.Therefore,thewholedesignmethodoftherollingwheelandthehorniseffective
7、.Itisverifiedandrevisedbythefiniteelementanalysismethod.Thedesignresultsareconsistentwiththeex-perimentalresults.Thedesignqualityoftheamplitudetransformerdeviceisimproved.Keywords:ultrasonicburnishing;crystallizer;transformerdesign;FEanalysis滚压面形状复杂,表面粗糙度要求高,而且需要储备一0引言定层深的残余压应力
此文档下载收益归作者所有