冲压模具毕业论文中英文资料外文翻译文献

冲压模具毕业论文中英文资料外文翻译文献 毕业论文中英文资料外文翻译文献 Heat Treatment of Die and Mould Oriented Concurrent Design LI XiongZHANG Hong-bingRUAN Xue—yuLUO Zhong—huaZHANG YanAbstract: Many disadvantages exist in the traditional die design method which belongs to serial pattern. It is well known that heat treatment is highly important to the dies. A new idea of concurrent design for heat treatment process of die and mould was developed in order to overcome the existent shortcomings of heat treatment process. Heat treatment CAD/CAE was integrated with concurrent circumstance and the relevant model was built. These investigations can remarkably improve efficiency reduce cost and ensure quality of R and D for products.Key words: die design heat treatment mould Traditional die and mould designmainly by experience orsemi—experience，is isolated from manufacturing process.Before the design is thefinalized， scheme of die and mould is usually modified time and again，thussome disadvantages come into beingsuch as long development periodhighcost and uncertain practical effect.Due to strong desires for precisionservicelifedevelopment period and costmodern die and mould should be designedand manufactured perfectly.Therefore more and more advanced technologiesand innovations have been appliedfor exampleconcurrent engineeringagilemanufacturing virtual manufacturingcollaborative designetc. Heat treatment of die and mould is as important as designmanufacture 中原工学院毕业 设计论文-外语翻译and assembly because it has a vital effect on manufacture， assembly andservice life ( Design and manufacture of die and mould have progressedrapidly， but heat treatment lagged seriously behind them( As die and mouldindustry develops， heat treatment must ensure die and mould there are goodstate of manufacture， assembly and wear—resistant properties by request.Impertinent heat treatment can influence die and mould manufacturing such asover—hard and—soft and assembly( Traditionally the heat treatment processwas made out according to the methods and properties brought forward bydesigner( This could make the designers of die and mould and heat treatmentdiverge from each other， for the designers of die and mould could not fullyrealize heat treatment process and materials properties， and contrarily thedesigners rarely understood the service environment and designing thought.These divergences will impact the progress of die and mould to a great extent.Accordingly， if the process design of heat treatment is considered in the early thedesigning stage， aims of shortening development period，reducing cost andstabilizing quality will be achieved and the sublimation of developmentpattern from serial to concurrent will be realized( Concurrent engineering takes computer integration system as a carrieratthe very start subsequent each stage and factors have been considered such asmanufacturing， heat treating， properties and so forth in order to avoid theerror( The concurrent pattern has dismissed the defect of serial patternwhichbring about a revolution against serial pattern( In the present work(the heat treatment was integrated into the concurrentcircumstance of the die and mould development ， and the systemic andprofound research was performed(1 Heat Treatment Under Concurrent Circumstance The concurrent pattern differs ultimately from the serial patternseeFig ( 1.With regard to serial pattern ， the designers mostly consider thestructure and function of die and mould， yet hardly consider the consequentprocess，so that the former mistakes are easily spread backwards(Meanwhile，the design department rarely communicates with the assembling ， costaccounting and sales departments(These problems certainly will influence the 1 中 原工学院毕业设计论文-外语翻译development progress of die and mould and the market foreground(Whereas inthe concurrent pattern，the relations among departments are close，the relateddepartments all take part in the development progress of die and mould andhave close intercommunion with purchasers( This is propitious to eliminationof the conflicts between departments， increase the efficiency and reduce thecost( Heat treatment process in the concurrent circumstance is made out notafter blueprint and workpiece taken but during die and mould designing( Inthis way， it is favorable to optimizing the heat treatment process and makingfull use of the potential of the materials(2 Integration of Heat Treatment CAD ,CAE for Die andMould It can be seen from Fig( 2 that the process design and simulation of heattreatment are the core of integration frame ( After information input viaproduct design module and heat treatment process generated via heattreatment CAD and heat treatment CAE module will automatically divide the 2 中原工学院毕业设计论文-外语翻译mesh for parts drawing， simulation temperature field microstructure analysisafter heat—treatment and the defect of possible emerging such asoverheatover burning， and then the heat treatment process is judged if theoptimization is made according to the result reappeared by stereoscopic visiontechnology ( Moreover tool and clamping apparatus CAD and CAM areintegrated into this system( The concurrent engineering based integration frame can shareinformation with other branch( That makes for optimizing the heat treatmentprocess and ensuring the process sound(2.1 3-D model and stereoscopic vision technology for heattreatment The problems about materials， structure and size for die and mould canbe discovered as soon as possible by 3-D model for heat treatment based onthe shape of die and mould ( Modeling heating condition and phasetransformation condition for die and mould during heat treatment are 3 中原工学院毕业设计论文- 外语翻译workable， because it has been broken through for the calculation of phasetransformation thermodynamics ， phase transformation kinetics ， phasestressthermal stress，heat transfer，hydrokinetics etc(For example，3-D heat— conducting algorithm models for local heating complicated impression andasymmetric die and mould， and M ARC software models for microstructuretransformation was used ( Computer can present the informations oftemperature， microstructure and stress at arbitrary time and display the entiretransformation procedure in the form of 3-D by coupling temperaturefieldmicrostructure field and stress field ( If the property can becoupledvarious partial properties can be predicted by computer(2.2 Heat treatment process design Due to the special requests for strength，hardness，surface roughness anddistortion during heat treatment for die and mould， the parameters includingquenching medium type， quenching temperature and tempering temperatureand time，must be properly selected，and whether using surface quenching orchemical heat treatment the parameters must be rightly determined( It isdifficult to determine the parameters by computer fully( Since computertechnology develops quickly in recent decadesthe difficulty with large—scalecalculation has been overcome(By simulating and weighing the property， thecost and the required period after heat treatment(it is not difficult to optimizethe heat treatment process(2.3 Data base for heat treatment A heat treatment database is described in Fig( 3( The database is thefoundation of making out heat treatment process( Generally， heat treatmentdatabase is divided into materials database and process database( It is aninexorable trend to predict the property by materials and process( Although itis difficult to establish a property database， it is necessary to establish thedatabase by a series of tests ( The materials database includes steelgradeschemical compositions，properties and home and abroad grades paralleltables(The process database includes heat treatment criterions，classes，heat 4 中原工学院毕业设计论文-外语翻 译preservation time and cooling velocity(Based on the database，heat treatmentprocess can be created by inferring from rules(2.4 Tool and equipment for heat treatment After heat treatment process is determined， tool and equipment CAD, CAE system transfers the information about design and manufacture to thenumerical control device( Through rapid tooling prototype， the reliability oftool and the clamping apparatus can be judged( The whole procedure istransferred by network， in which there is no man— made interference(3 Key Technique3.1 Coupling of temperature， microstructure， stress andproperty Heat treatment procedure is a procedure of temperature-microstructure—stress interaction ( The three factors can all influence the property seeFig(4(During heating and cooling，hot stress and transformation will comeinto being when microstructure changes.Transformation temperature-microstructureand temperature—microstructure—and stress-property interact on eachother ( Research on the interaction of the four factors has been greatly 5 中原工学院毕业设计论文-外语翻译 developedbut the universal mathematic model has not been built ( Manymodels fit the test nicely， but they cannot be put into practice( Difficultieswith most of models are solved in analytic solution， and numerical method isemployed so that the inaccuracy of calculation exists( Even so， comparing experience method with qualitative analysis， heattreatment simulation by computer makes great progress(3.2 Establishment and integration of models The development procedure for die and mould involvesdesignmanufacture，heat treatment， assembly，maintenance and so on(Theyshould have own database and mode1( They are in series with each other bythe entity— relation model( Through establishing and employing dynamicinference mechanism ， the aim of optimizing design can be achieved( Therelation between product model and other models was built( The productmodel will change in case the cell model changes( In fact， it belongs to therelation of data with die and mould( After heat treatment model is integratedinto the system， it is no more an isolated unit but a member which is close toother models in the system( After searching， calculating and reasoning fromthe heat treatment databaseprocedure for heat treatment， which is restrictedby geometric modelmanufacture model for die and mould and by cost and 6 中原工学院毕业设计论文-外语翻译 is Ifproperty， obtained( the restriction is disobeyed， the system will send outthe interpretative warning( All design cells are connected by communication network(3.3 Management and harmony among members The complexity of die and mould requires closely cooperating amongitem groups(Because each member is short of global consideration for die andmould development， they need to be managed and harmonized( Firstlyeachitem group should define its own control condition and resource requestedandlearn of the request of up-and-down working procedure in order to avoidconflict ( Secondly ， development plan should be made out and monitormechanism should be established( The obstruction can be duly excluded incase the development is hindered( Agile management and harmony redound to communicating information，increasing efficiency， and reducing redundancy(Meanwhile it is beneficial forexciting creativity， clearing conflict and making the best of resource(4 Conclusions 1 Heat treatment CAD , CAE has been integrated into concurrentdesign for die and mould and heat treatment is graphedwhich can increaseefficiency， easily discover problems and clear conflicts( 2 Die and mould development is performed on the same platform(Whenthe heat treatment process is made out， designers can obtain correlativeinformation and transfer self-information to other design departments on theplatform( 3 Making out correct development schedule and adjusting it in time canenormously shorten the development period and reduce cost(References:1 ZHOU Xiong-hui， PENG Ying-hong(The Theory and Technique of ModernDie and Mould Design and ManufactureM( Shanghai: Shanghai JiaotongUniversity Press 2000in Chinese( 7 中原工学院毕业设计论文-外语翻译2 Kang M ， Parkamp Computer Integrated Mold ManufacturingJ ( Int JComputer Integrated Manufacturing， 1995， 5: 229-239(3 Yau H T， Meno C H( Concurrent Process Planning for Finishing Millingand Dimensional Inspection of Sculptured Surface in Die and MouldManufacturingJ( Int J Product Research， 1993， 3111: 2709— 2725(4 LI Xiang，ZHOU Xiong-hui， RUAN Xue-yu( Application of Injection MoldCollaborative Manufacturing System J ( JournaI of Shanghai JiaotongUniversity， 2000， 354: 1391-1394(5 Kuzman K ， Nardin B ， Kovae M et a1 ( The Integration of J RapidPrototyping and CAE in Mould Manufacturing J( Materials ProcessingTechnology， 2001， 111: 279— 285(6 LI Xiong， ZHANG Hong— bing， RUAN Xue-yu， et a1( Heat TreatmentProcess Design Oriented Based on Concurrent EngineeringJ(Journal of Ironand Steel Research， 2002， 144: 26— 29(文献出处:LI XiongZHANG Hong-bingRUAN Xue—yuLUO Zhong—huaZHANG Yan. HeatTreatment of Die and Mould Oriented Concurrent DesignJ. Journal of Iron and SteelResearch， 2006131:40-43， 74 8 中原工学院毕业设计论文-外语翻译 模具热处理及其导向平行设计 李雄，张鸿冰，阮雪榆，罗中华，张艳摘要: 在一系列方式中，传统模具设计方法存在许多缺点。众所周知 热处理对模具起着非常重要的作用。为了克服模具热处理工艺存在 的 缺 点 ，一 种 新 的 模 具 热 处 理 工 艺 并 行 设 计 方 法 已 经 被 开 发 出 来 了 。 这 热 处 理 CAD/CAE 技 术 是 集 成 了 并 行 环 境 和 有 关 模 型 而 建 立 的 。 些 调查研究可以显著提高效率，降低成本，并保证产品质量达到 R 和 D 级。关键词:模具设计;热处理;模具 传 统 模 具 设 计 主 要 是 依 照 自 身 实 践 经 验 或 依 照 部 分 实 践 经 验 ，而 不 是制造工艺。在设计完成之前，模具通常要被一次又一次的改进，于是有些缺点便出现，例如开发时期长，成本高和实际效果不明显。由于对精确性、使用寿命、开发期和费用的严格要求，先进的模具要求设计和制造得十分完善。因此越来越先进的技术和创新方法被应用其中，例如并行工 程、 敏捷制造业、虚拟制造业、协同合作设计等。 模 具 的 热 处 理 与 模 具 设 计 ，制 造 和 装 配 同 样 重 要 。因 为 它 对 模 具 的 制造装配和使用寿命又及其重要的影响。模具设计与制造发展十分迅速，但是热处理发展却严重滞后它们。随着模具工业的发展，热处理必须保证模具有良好的制造装配和磨损耐热性能。不切实际的热处理将导致模具材料过硬或过软，同时影响模具装配性能。传统的热处理工艺是按照设计师提出的方法和特性制作出来的。这样会使模具设计师和热处理工艺师意见产生分歧，而模具设计师却不能充分地了解热处理工艺和材料的性能，相反 9 中原工学院毕业设计论文-外语翻译热处理工艺师却很少了解模具的使用环境和设计思路。这些分歧将在很大程 度 上 影 响 模 具 的 发 展 。因 此 ，如 果 把 热 处 理 工 艺 设 计 放 在 设 计 阶 段 之 前 ，则缩短开发周期，减少花费和保证质量等目标将会被考虑，而且从串行到并行的发展模式也将会实现。 并 行 工 程 是 以 计 算 机 集 成 系 统 作 为 载 体 ，在 开 始 以 后 ，每 个 阶 段 和 因素都被看作如制造、热处理、性能等等，以避免出现错误。并行模式已经摒除了串行模式的缺陷，由此带来了一场对串行模式的革命。 在 当 前 的 工 作 中 ，热 处 理 被 集 成 到 了 模 具 开 发 的 并 行 环 境 中 ，同 时 也正在进行这种系统性和深入性的研究。1.热 处 理 下 的 并 行 环 境 并 行 模 式 与 串 行 模 式 存 在 根 本 的 不 同( 见 图 1)。对 于 串 行 模 式 ，设 计者大多考虑的是模具的结构与功能，但很难考虑相关的工艺，以致前者的错误很容易蔓.