140MN热模锻压力机上锻造大型曲轴用模具模架技术研究
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摘要
曲轴是发动机的关键零件,形状复杂,成形难度大。140MN热模锻压力机是目前国内最大的热模锻压力机,上面的模架重量重、加工难度大、价值高,因此研究140MN热模锻压力机上锻造曲轴用模具、模架具有重大意义。
     本文使用ANSYSWorkbench软件对两种顶杆孔、三种导向形式的模架方案进行热-力有限元分析,比较了两种顶杆形模座的应力分布,比较了加载140MN压力情况下三种导向形式模架的应力分布,为选择合适的模架形式提供依据。
     对800-06-001曲轴进行锻造工艺计算,设计了预锻-终锻-切边-扭拐的工艺流程。利用QForm软件对曲轴成形过程中的温度场、速度场、应力场和载荷进行模拟,为坯料选择、模具设计提供依据。对模具的应力进行了数值模拟,为零件的大批量生产,模具的使用和设计提供了新的依据。
     最终现场进行试验验证,得到了与数值模拟相同的结果,选择合适的坯料规格进行小批量生产。
As a key component of engine, crankshaft has a complex shape and lowformability. As we know,140MN hot forging press is the largest type in Chinanow and the die holder whereon has heavy weight, low machinability and highcost, it is significant to research die and die holder for crankshaft on140MN hotforging press.
     Die holders with2types of ejector pin,3types of guider were finite elementmethod thermal-mechanical analyzed by ANSYSWorkbench in this dissertation.The stress distributions of die seats with different ejector pins as well as3typesof guider were compared, which could set a base for selecting suitable die holder.
     Especially, a forging technics of crankshaft was calculated and a technicalprocess including pre-forging, finish-forging, trimming and torsioning wasdesigned. Temperature field, velocity field, stress field and load in crankshaftforming process were simulated by QForm, which was helpful to blank sectionand die design. In addition, the simulation of die stress and abrasion providednew argument for large batch production, die in use and design.
     Finally, the results of simulation were validated by practical testing on site and thesuitable blank was selected for small batch production.
引文
[1]彭颖红.金属塑性成形仿真技术.上海,上海交通大学出版社,1999.18-19
    [2]赵一平.模锻曲轴国内外生产现状及差距.锻造与冲压,2010,(4):24~28
    [3]夏占雪,于宜洛,王云飞.曲轴锻造生产线与新技术应用.锻造与冲压,2010,(4):44~48
    [4]鲁洁,王秀叶.一种新型机械式曲柄锻造压力机.锻压装备与制造技术,2005,40(2):56~58
    [5]中国锻压协会.汽车典型锻件生产.北京:国防工业出版社,2009:31-32,37
    [6]罗晴岚.曲轴锻件的生产与精密模锻线设计.锻压机械,2001,(4):6~12
    [7]洪慎章.闭式挤锻工艺的应用及发展.锻压技术,1996,(5):3-6
    [8]洪慎章.俄罗斯热模锻生产中的新技术.模具工业,1994,(12):48-52
    [9]高锦张,陈文琳等.塑性成形工艺与模具设计.北京:机械工业出版社,2001.150-152
    [10]孙小孟.微车曲轴精密锻造成形工艺及模具的研究:[硕士学位论文].重庆:重庆大学机械工程学院,2006
    [11]李晶.汽车曲轴精密模锻成形工艺优化研究:[硕士学位论文].重庆:重庆大学机械工程学院,2007
    [12]喻兴娟.汽车曲轴铸改锻技术研究.机械与电子,2007,(18):316
    [13]夏占雪,阮艳静,赵建申.CAD/CAE技术在曲轴锻件制造过程中的应用.锻压技术,2005,(2):53~55
    [14]Akiyasu M,Shigeo H,Kazuhito T,et all.Near net shape forging oftitanium alloy turbine blade,ISIJ International,1991,31(8):827~833
    [15]Kang B S,Kim N S,Kobayashi S.Computer aided perform design inforging of an airfoil section blade.Int.J.Mach.Tools Manuf,1990,30(1):43~52
    [16]Solt sni B,Mattiasson K,Samuelsson A.Iimplicit and dynamicexplicit method,Mater.Process.Technol,1994,45:69~74
    [17]吕成,张立文,牟正君等.重型燃机叶片锻造过程的三维热力耦合有限元模拟.塑性工程学报,2006,(8):54~58
    [18]Zhang XQ,Peng YH,Ruan XY.Simulation and fracture prediction forsintered materials in upsetting by FEM Mater Process Technol2000,105:253~257
    [19]Bandstra JP,Koss D.A simulation of growth and coalescence of voidsduring ductile fracture.Mater Sci Eng,2004,387~389:399~403
    [20]SzentmihaliV,LangeK,Troner Y etc.3-D finite-element simulation ofthe cold forging of helical gears.Mater Process Technol,1994,43:279~291
    [21]Coupez Thierry,Soyris Nathalie,Chenot Hean Loup.3D finite elementmodelling of the forging process with automatic remeshing.J mater ProcessTechnol,1991,27:119~133
    [22]R.S.Lee,J.L.Jou.Application of numerical simulation for wearanalysis of warm forging die.Journal of Materials ProcessingTechnology,2003,140:43~48
    [23]H.Ou,J.Lana,C.G.Armstrong et al.An FE simulation and optimisationapproach for the forging of aeroengine components.Journal of MaterialsProcessing Technology.2004,151:208~216
    [24]Oden J.T,piresE.B.Non local and nonlinear friction laws andvariational principles for contact problems in elasticity.Transaction ofthe ASME Journal of Applied Mechanics,1983,50:67~76
    [25]胡振志,李路,张平.微车曲轴模具结构优化及试验研究.见:2009海峡两岸机械科技论坛论文,海南,2009:610~614
    [26]孙前江,王高潮,黄映霞等.曲轴锻造过程的数值模拟.锻压技术,2006,(2):4~6
    [27]王傲冰,张莉萍,于锁清等.曲轴模锻成形过程数值模拟.大型铸锻件,2007,(5):1~2
    [28]张英建,惠卫军,蕫翰等.曲轴坯料锻前冷却过程的数值模拟.铸造锻压,2007,36(21):83~85
    [29]胡建军,许洪斌,金艳.塑性成形数值仿真精度的提高途径.锻压技术,2009,34(4):150~152
    [30]蒋鹏,楼捷,刘志刚.微型车发动机曲轴锻造生产线.机械工人:热加工,2003,(4):49~50
    [31]中国机械工程学会塑性工程学会.锻压手册,第一册锻造.北京,机械工业出版社,2007
    [32]吴玉坚.大型热模锻压力机模架设计浅探.汽车技术,1995,(9):30~34
    [32]郭永兴.630t压力机多功能通用模架设计.航空制造技术,1996,(3):37~39
    [34]杨清海.摩擦压力机通用模架的设计.锻压技术,2009,34(1):113~114
    [35]卢建中.摩擦压力机闭式模锻齿坯模架结构设计.机械管理开发,2001,(3):61~62
    [36]李松刚,李现杰,陈东辉.多功能预应力镶块模座的应用.金属加工:热加工,2010,(3):51~55
    [37]王以华.锻模设计技术及实例.北京:机械工业出版社,2009.129
    [38]中国机械工程学会塑性工程学会.锻压手册(第一册锻造).北京:机械工业出版社,2007.414
    [39]Chandrup T.Introduction to Finite Element in Engineering[C]。NewJersey:Prentice Hall,1993
    [40]ANSYS Training Manual for DesignSpace&WorkbenchEnvironment[M].ANSYSInc.,2005
    [41]曾锐,平丽浩.基于Workbench的多学科仿真分析平台开发.2007年机械电子学学术会议论文集[C],2008
    [42]吕炎.锻模设计手册.北京:机械工业出版社,2006.475-476
    [43]蔡墉.Qform-3D锻造模拟软件简介.锻造与冲压,2004,4:21-22
    [44]汪磊.钢活塞锻造过程的数值模拟分析:[硕士学位论文].上海:上海交通大学材料科学与工程学院,2008
    [45]姚泽坤.锻造工艺学.西安:西北工业大学出版社,1998.294-295
    [46]QForm2D/3D Version5.03D simulation user's guide,2005.82-83

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