大型整体结构件铣削加工的变形研究
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摘要
《国家中长期科研发展规划》将先进制造技术的未来发展方向明确为信息化、绿色化和极端化。本文运用理论研究和有限元仿真相结合的方法,对大型整体结构件的铣削加工变形进行了分析,分别研究了残余应力对整体结构件加工变形的影响,大型矩形薄板在重力作用下任意点支撑的变形情况,大型整体结构件铣削加工的变形预测。
     本文第一章阐述了论文研究的背景和意义,对大型整体结构件的变形特点及变形原因进行了分析,并详述了国内外研究现状,最后给出了本文的研究内容。
     第二章在对剥层法研究总结的基础上,概括出残余应力和变形挠度的计算通用公式,并通过编制的通用程序研究了其独立自变量(工件的初始残余应力、工件尺寸)对变形量的影响。
     第三章将基于重傅里叶级数和叠加法的小挠度薄板变形理论应用于大型整体结构件任意点支撑的变形研究,并结合有限方法,建立了大型矩形薄板在重力作用下任意点支撑的研究模型。重点解决以下问题:1)基于所建立的研究模型研究了相关参数对变形量的影响;2)建立了工件尺寸、材料以及支撑点的位置与工件变形的关系;3)建立了工件尺寸、材料以及支撑点的数目与支撑点的最佳支撑位置的关系;4)基于小挠度变形理论并结合有限元模型,对矩形薄板在柔性支撑时的间距选择给出建议;5)针对任意曲面的支撑情况,在对相关文献研究总结的基础上,提出了曲面支撑的一般思路并进行了参数化建模。并且,上述所有问题均编制了相关程序。
     第四章区别于以往的接力计算的铣削仿真模型,建立了铣刀与工件直接作用的铣削仿真模型,首先研究了常见的四种加工路径(外环形,内环形,“之”字形和并进形)对大型整体结构件铣削加工变形的影响,并基于上述模型研究了重力和支撑点对工件铣削加工变形量的影响。最后,基于最优加工路径,以三框和六框整体结构件为对象,研究了隔框件的铣削顺序对大型隔框类整体结构件加工变形的影响。
     第五章对整篇论文进行了总结和展望。
State plans for medium and long-term development thinks the direction of advanced manufacturing technologies in future as informationization, green, extreme. The research uses the method of theoretical studies combined with finite element emulation. The analysis of the machining distortion of the large monolithic components was finished in this paper. It is studied that the effects of initial residual stress on machining deformation, the deformation of the big rectangular thin plate supported by points under gravity, the predict of the machining distortion of the large monolithic components.
     The first chapter expatiates the correlative background and significance of this thesis. The deformation characteristics and cause of the large monolithic components are studied. It details the situations both in China and abroad. Finally, it states the research topic.
     The second chapter studied and summarized layer-stripping, summarized the general formula of residual stress and deformation, studied the effects of the related variables on machining deformation by the general program.
     The third chapter applied the deforming theory of small deflection based on two-dimensional Fourier series and superposition method to the machining distortion of the large monolithic components, linked to the finite element method, established the model of the big rectangular thin plate supported by points under gravity. It priorities to address the following issues:1) The effects of the related variables on machining deformation is studied based on the established model.2) Establish the relationship between the dimensions and material of workpiece as well as the location of the support points and the deformation of the workpiece; 3) Establish the relationship between the dimensions and material of workpiece as well as the number of the support points and the best location of support point;4) Based on the theory of small deflection combined with the finite element method, gives advice about the span of supports;5) In view of the support situation of all curve surfaces, advances the way to the support of all curve surfaces on the base of research on the related literature.
     The fourth:The simulation model of the milling process was built, unlike previous the simulation model of the restarting analysis. The effects of the four most common processing path(ring from inside to outside, ring from outside to inside, abreast, zigzag) on machining deformation was studied. Base on the model, It is studied that the effects of gravity and supported points on machining deformation. The monolithic components usually have many frames. This paper takes a monolithic component with three frames and six frames as research subject. The effects of the milling machining sequences on machining deformation was studied.
     The fifth:Finally it summarizes the whole research work as well as the prospect of the project, and points out some features that need improved.
引文
[1]王中秋.航空整体结构件加工变形滚压校正理论及方法研究[D].山东大学,2009
    [2]孙杰.航空整体结构件数控加工变形校正理论和方法研究[D].浙江:浙江大学,2003
    [3]史美堂.金属材料热处理[M].上海:上海科学技术出版社,1979,25
    [4]张恩生,申铁固.机械制造工艺系统学[M].上海:上海交通大学出版社,1989,81-83
    [5]董跃辉.航空整体结构件加工过程的数值仿真[D].杭州:浙江大学,2004.
    [6]董辉跃,柯映林,孙杰,吴群.铝合金厚板淬火残余应力的有限元模拟及其对加工变形的影响[J].航空学报,2004,25(4):429-432
    [7]王树宏.航空铝合金厚板初始残余应力及其对铣削变形影响的基础研究[D].南京:南京航空航天大学,2005
    [8]Wang Shu hong,Zuo Dun wen,Wang,Min Wang Zong rong.Modified layer removal method for measurement of residual stress distribution in thick pre-stretched aluminum plate.Trans. of NUAA,2004,21(4):286-290
    [9]郭魂,左敦稳,王树宏,王珉.铝合金预拉伸厚板内残余应力分布的测量[J].华南理工大学学报(自然科学版),2006,34(2):33-36
    [10]王树宏,左敦稳,润长生,王珉,徐礼林.LY12、B95п.ч和7050铝合金预拉伸厚板内部残余应力分布特征评估与分析[J].材料工程,2004,10:32-35
    [11]王树宏,马康民,马俊.预拉伸铝合金板7050T7451内部残余应力分布测试[J].空军工程大学学报(自然科学版)[J],2004,5(3):19-21
    [12]王树宏,左敦稳,黎向锋,王珉.预拉伸铝合金厚板7050T7451内部残余应力分布测试理论及试验研究[J].应用科学学报,2005,23(2):192-195
    [13]唐志涛.航空铝合金残余应力及切削加工变形研究[D].山东大学,2008
    [14]唐志涛,刘战强,艾兴.高速铣削加工铝合金表面残余应力研究[J].中国机械工程,2008,19(6):699-703.
    [15]王中秋.航空整体结构件加工变形滚压校正理论及方法研究[D].山东大学,2009
    [16]张洪伟,张以都,赵晓慈,吴琼.航空结构件加工变形仿真关键技术.北京航空航天大学学报,2008,34(2):239-243
    [17]王立涛.关于航空框类结构件铣削加工残余应力和变形机理的研究[D].杭州:浙江大学,2003
    [18]王立涛,柯映林,黄志刚,孙杰.铝合金材料数控加工残余应力的分析[J].机械 工程学报,2004,40(4):123-126
    [19]王立涛,柯映林,黄志刚,许德,吴群.航空结构件铣削残余应力分布规律的研究[J].2003,24(3):286-288
    [20]董辉跃,柯映林,许德,吴群.基于残余应力分布的框类零件装夹方案优选的有限元模拟[J].航空学报,2003,24(4):382-384
    [21]董辉跃,柯映林.残余应力对加工变形影响的分析与模拟[J].航空材料学报,2005,25(5):54-58
    [22]吴红兵.航空框类整体结构件铣削加工变形的数值模拟与实验研究[D].杭州:浙江大学,2008
    [23]吴红兵,刘刚,柯映林,董辉跃.钛合金的已加工表面残余应力的数值模拟[J].浙江大学学报(工学版),2007,41(8):1389-1393
    [24]毕运波,柯映林,董辉跃.航空铝合金薄壁件加工变形有限元仿真与分析[J].浙江大学学报(工学版),2008,42(3):397-402
    [25]康小明.大型整体结构件加工变形问题研究[D].杭州:浙江大学,2002.
    [26]黄志刚.航空整体结构件铣削加工变形的有限元模拟理论及方法研究[D].杭州:浙江大学,2003.
    [27]黄志刚,柯映林,王立涛.金属切削加工的热力耦合模型及有限元模拟研究[J].航空学报2004,25(3):317-320
    [28]黄志刚,柯映林,王立涛.金属切削加工有限元模拟的相关技术研究[J],中国机械工程,2003,14(6):84-89
    [29]黄志刚,柯映林,王立涛.基于正交切削加工模拟的零件铣削加工变形预测研究[J].机械工程学报.2004,40(11):117-122
    [30]黄志刚,柯映林.基于正交切削模拟的直齿圆柱铣刀前角优化[J].浙江大学学报,2005,39(6):780-784
    [31]黄志刚,柯映林.飞机整体框类结构件铣削加工的模拟研究[J].浙江大学学报.2004,15(11):991-995
    [32]DONG Hui-yue KE Ying-lin. Study on Machining Deformation of Aircraft Monolithic Component by FEM and Experiment. CHINESE JOURNAL OF AERONAUTICS,2006,19(3):247-254
    [33]郭魂,左敦稳,刘远伟,王珉,童国权.航空腔型薄壁件铣削变形的预测[J].吉林大学学报,2008,38(1):84-88
    [34]成群林.航空整体结构件切削加工过程的数值模拟与实验研究[D].杭州:浙江大学,2006.
    [35]成群林,柯映林,董辉跃.航空铝合金铣削加工中切削力的数值模拟研究 [J].航空学报,2006,27(4):724-727
    [36]成群林,柯映林,毕运波,董辉跃.航空整体结构件铣削加工变形预测研究[J].浙江大学学报,2007,41(5):799-803
    [37]毕运波.铣削加工过程物理仿真及其在航空整体结构件加工变形预测中的应用研究[D].杭州:浙江大学,2007.
    [38]毕运波,柯映林,成群林,董辉跃.基于物理学的铣削过程仿真关键技术研究[J].浙江大学学报,2007,41(4):541-546
    [39]毕运波,方强,董辉跃,柯映林.航空铝合金高速铣削温度场的三维有限元模拟及试验研究[J].机械工程学报,2010,46(7):160-165
    [40]吴红兵,柯映林,刘刚,成群林,毕运波.航空铝合金高速铣削加工的三维数值模拟[J].浙江大学学报,2008,42(2):234-238
    [41]吴红兵,柯映林,刘刚,董辉跃.航空框类整体结构件铣削加工变形研究[J].浙江大学学报,2009,43(3):546-550
    [42]张洪伟,张以都,赵晓慈,吴琼.基于子结构法的航空结构件动态特性快速分析[J].辽宁工程技术大学学报(自然科学版),2008,27(6):921-923
    [43]郭魂,左敦稳,王焱,吴海兵,王珉.铣削加工顺序对航空多框结构件加工变形影响的模拟分析[J].机械设计与制造,2008(7):70-73
    [44]黄志刚,柯映林,董辉跃.框类整体结构件铣削加工顺序的有限元模型[J].浙江大学学报.2005,39(3):368-372
    [45]董辉跃,柯映林.铣削加工中薄壁件装夹方案优选的有限元模拟[J].浙江大学学报,2004,38(1):17-21
    [46]郭魂,左敦稳,王树宏,王焱,王珉.拉伸装夹对航空框类零件加工变形影响的有限元分析[J].南京航空航天大学学报,2005,(37):72-76
    [47]路东.航空整体结构件加工变形预测及装夹布局优化[D].山东大学,2007
    [48]路冬,李剑峰,孙杰,姜峰.航空框类零件加工动态夹紧力确定有限元分析[J].山东大学学报,2007,37(1):19-22
    [49]百万金.航空薄壁件精密铣削加工变形的预测理论及方法研究[D].杭州:浙江大学,2008.
    [50]郑联语,汪叔淳.薄壁零件数控加工工艺质量改进方法.航空学报,2001,22(5):424-428.
    [51]E.Brinksmeier,J.SOlter. Prediction of shape deviations in machining. CIRP Annals-Manufacturing Technology 58 (2009):507-510
    [52]陈锡渠彭晓南.金属切削原理与刀具[M].北京市:北京大学出版社,2006,39
    [53]Tong L. Schmitz et al. Case study:A comparison of error source in high-speed milling, precision Engineering 32(2008):126-133
    [54]J.E.Wyatt et al. A new technique for the determination of superficial residual stress associated with machining and other manufacturing processes. Journal of materials processing technology,171(2006):32-140
    [55]J.E.Wyatt et al. Residual stress in aluminium castings. Journal of materials processing technology,191(2007):170-173
    [56]J.C.Cuteiro et al. analysis of residual stress induced by dry turning of difficult to machine materials, CIRP Annals-Manufacturing Technology 57 (2008) 77-80
    [57]E.Brinksmeier et al. Distortion Engineering-Identification of Causes for Dimensional and Form Deviations of Bearing Rings. CIRP Annals-Manufacturing Technology 56 (2007):109-122
    [58]Mouhab Meshreki et al. dynamic modeling and analysis of thin-walled aerospace structure for fixture design in multiaxis milling. ASME J. Manuf. Sci. eng. 130(2008)031011
    [59]Bethany A.Woody et al. A technique for enhancing machine tool accuracy by transferring the metrology reference from the machine tool to the workpiece, ASME J. Manuf. Sci. eng.129(2007):636-643
    [60]王树宏.航空铝合金厚板初始残余应力及其对铣削变形影响的基础研究[D].南京航空航天大学,2005
    [61]熊有德 材料强度力学[M].北京:科学出版社,2009,943
    [62]卓卫东 应用弹塑性力学[M].北京:科学出版社,2004,205
    [63]赵均海 汪梦甫 弹性力学及有限元(第2版)[M].武汉:武汉理工大学出版社,2008,92
    [64]薛守义 弹塑性力学[M].北京:中国建材工业出版社,2006,146
    [65]吴连元 板壳理论[M].上海:上海交通大学出版社,1989,4
    [66]黄克智 板壳理论[M].北京:清华大学出版社,1987,115
    [67]付宝连 弯曲矩形板的广义位移理论[M].北京:科学出版社,2006,2
    [68]吴连元 波板理论[M].上海市:上海交通大学出版社,1989,47
    [69]张福范 弹性薄板[M].北京:科学出版社,1984
    [70]董军,彭立生.域内点支四边自由矩形极弯曲问题的解析解[J].江汉石油学院学报,1992,14(4):75-82
    [71]李定坤.四支柱支撑无梁矩形板的弯曲[J].应用数学和力学,1982.
    [72]王克林 刘俊卿 赵冬.平板的弯曲、振动和屈曲[M].北京:冶金工业出版社,2006,19-51
    [73]李光俊,许旭东,谭胜勇.多点柔性模具在飞机蒙皮成型中的应用[J],航空制造技术,2009(10):51-54
    [74]杨殿英.机械制造工艺[M].北京:机械工业出版社,2009,146
    [75]卞洪元.机械制造工艺与夹具[M].北京:北京理工大学出版社,2010,118
    [76]吴慧媛.机械制造技术[M]西安:西安电子科技大学出版社,2006,131
    [77]Troels H.Pedersen, Torben A.Lenau. Variable Geometry Casting of concrete elements using pin-type tooling. [J] Manufacturing Science and Engineering,2010
    [78]F.X.Tan, M.Z.Li, Z.Y.Cai. Research on the process of multi-point forming for the customized titanium alloy cranial prosthesis. [J] Journal of Materials Processing Technology,2007:453-457
    [79]Zhong Yi Cai,Shao Hui Wanga,Xu Dong Xub,Ming Zhe Li. Numerical simulation for the multi-point stretch forming process of sheet metal [J]. Journal of Materials Processing Technology,2009:396-407
    [80]Shao hui Wang,Zhong yi Cai,Ming zhe Li. Numerical investigation of the influence of punch element in multi-point stretch forming process[J]. Int J Adv Manuf Technol (2010) 49:475-483
    [81]Daniel F. Walczyk, David E. Hardt, Design and Analysis of Reconfigurable Discrete Dies for Sheet Metal Forming. [J] Journal of Manufacturing systems,1998
    [82]Im, Y., Walczyk, D. F., and Schwarz, R. C.,2000, "A Comparison of Pin Actuation Schemes for Large-Scale Discrete Dies," J. Manuf. Process.,2(4),pp. 247-257
    [83]Sullivan, E. V.,2000, "Individual Motor Pin Module," U.S. Patent No.6,012,314.
    [84]Masters, W. E.,1996, "Method and Apparatus for Producing Three-Dimensional Articles From a Computer Generated Design," U.S. Patent No. 5,546,313.
    [85]杨荣福,董申编.金属切削原理.北京:机械工业出版社,1988
    [86]许鸿昊,拉伸装夹高速铣削钛合金的疲劳特性研究[博士学位论文],南京,南京航空航天大学,2008
    [87]马玉林,付宜利,孙宏伟.虚拟加工中的加工误差分析与预测[J].机械工程学报,2002,38(11):139-144

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