冲压专业英语

汽车覆盖件冲压成形缺陷的精细分析与仿真优化方法研究

Research on Fine Analysis and Simulation Optimization for Auto Panel Stamping Defect

PrefaceAutomobile body is the key of the automotive industry development, and the body lies in the manufacture of stamping dies. The success of modern press technology is due to the successful development of the automotive industry, and body stamping accounts for about 30% proportion in stamping industry. Because of the continuous development of new automotive products, most new stamping technology is developed in the automotive stamping industry. Therefore, the automotive stamping industry is the driver of a new stamping industrial development and carrying out, especially for forming technology. Formability engineering analysis can solve all the stamping engineering and product problems. For example, how to determine the seriousness state of the press defect, what the pressing variables will impact pressing defects seriousness state, and so on. There are many available tools for the formability engineering analysis, and different tools have different functions and applications. Therefore, understanding engineering analysis enables stamping engineers to efficiently carry out stamping formability measurement and applications.With the maturity and application of CAE technology, the CAE software simulation analysis of existing body sheet metal forming can show a degree of plate defects, but there is no defect indication, causes, control methods and programs to eliminate defects, so stamping engineers can not further amend for the existing analysis results. Therefore, in order to improve the usefulness of CAE simulation results, according to sheet metal forming technology, it is important to apply the research results of stamping defect mechanism and solution to the development of post processing of CAE software.In this paper, we launched research on automotive panel stamping and forming theory and defects under the National Automotive Electronics major projects of high tech industry "CAD/CAE/CAM software platform for digital auto body parts fine design and manufacturing"(SDRC high tech 2042), the National Outstanding Youth Science Fund "The CAD expert system theory based KBE of stamping design and the research on the polymer forming theory and calculation method "(10125208) and the Ministry of Science and Innovation Fund "Stamping forming simulation technology applications". At the same time, carried out the "stamping defect system" development, and specifically analyzed typical examples.1. Sheet metal forming theory based on Universal Formability Technology and forming AnalysisFormability theory is the foundation of formability engineering experimental analysis. Different defect and quality concerns of sheet metal products need different formability analyses with different theoretical foundations. The development history of formability theories, in fact, parallels the improvement history of product quality, forming processes, and sheet metal properties. Today’s stamping industry requires more nimble and robust procedures for stamping engineering and production stability control. Product quality specifications are tighter and tighter; forming processes are more and more complicated due to intricate product shapes. Advanced formability analyses, therefore, are needed to satisfy these stamping industry requirements. Base on Universual Formability Technology, this paper presents a new stamping approach, thus provide more accurate and reliable technology, it can focus on stamping performance, especially for surface quality and shape accuracy to conduct a comprehensive description.2. Fundamentals of strain measurements of sheet metal formingWhen a blank is stressed, the metal flows into the die cavity, resulting in a blank shape change. The blank shape change continues until a desired part is obtained during the loading

process. When the metal flows, deformation, which is measured with strain, occurs. No deformation means no stamping. One of the major formability engineering analyses is to measure strains and strain distributions regarding different stamping quality concerns. Mastering basic deformation concepts, therefore, is the foundation for conducting strain measurements and analyses. The measured strain information, which includes strains and their orientations in grids, are raw data. Generally, the raw data cannot be applied directly for formability engineering analyses; they have to be transferred into formability indexes. The formability indexes have engineering meanings and are directly used for evaluating the ease or difficulty of making qualified stampings. In order to obtain formability indexes, the obtained raw data (strain information) needs to be transferred into extreme strains and strain gradients, while the displacements are measured directly.3. Development for sheet forming defects systemTraditional finite element method can only made basic indicates function for forming defects, and can’t further proposed improvement program. Take stamping defect diagnosis, resolution, prevention of the implementation methods, processes, feasibility, reliability analysis for conceptual analysis, mold design, mold manufacturing at different stages to meet the needs of practical engineering. The software does not rely on other CAE software, directly analysis and calculate post processing results.4. Fine analysis of split, wrinkle, shape change defects for auto panel stamping.The internal surface rupture is a defect which is difficult to resolve. This defect often takes place after putting mold into production, make production stability lower, scrap rate increased and resulting in greater economic losses. Sheet metal forming industry, particularly in the automotive stamping field that need to develop a forming technology, to processing a large number mechanical information obtained from the finite element analysis, physical testing, circle grid analysis and so on, and determine the degree of difficulty of manufacturer qualified stamping parts. Analysis on sheet metal forming theory and forming properties can use to analysis mechanical information and establish forming index to rigorously measure various types of stamping defects. In this fifth part we indicate rapture defect through KMAS/UFT system,and give the amount of metal flow conditioning advice and programs by simulation.Wrinkle in stamping process may not only result in a large number of waste, and easily to scratch mold. Even if the wrinkle has been flattened in the stamping later, there will leave traces in the product surface and affect the appearance. In this sixth part we indicate winkle defect through KMAS/UFT system,and give the amount of metal flow conditioning advice and programs by simulation.Elastic recovery will occur after stamping parts unloading. The relative design of stamping parts after unloading part size deviation is called springback. On the other hand, due to Non uniform stress distribution in stamping or Part of local geometric features constraint making of non uniform stress distribution, causing the overall shape of stamping parts "distortions" or "warp" after unloading, caused stamping parts shape change. Usually, springback and warping collectively referred to as shape change. In this seventh part we indicate shape change defect through KMAS/UFT system,and give the amount of metal flow conditioning advice and programs by simulation.

电类专业英语

Central Processing Unit (CPU) is the brain of a PLC controller. CPU itself is usually one of the microcontrollers. Aforetime these were 8-bit microcontrollers such as 8051, and now these are 16-and 32-bit microcontrollers. Unspoken rule is that you’ll find mostly Hitachi and Fujicu microcontrollers in PLC controllers by Japanese makers, Siemens in European controllers, and Motorola microcontrollers in American ones. CPU also takes care of communication, interconnectedness among other parts of PLC controllers, program execution, memory operation, overseeing input and setting up of an output. PLC controllers have complex routines for memory checkup in order to ensure that PLC memory was not damaged (memory checkup is done for safety reasons).Generally speaking, CPU unit makes a great number of check-ups of the PLC controller itself so eventual errors would be discovered early. You can simply look at any PLC controller and see that there are several indicators in the form. of light diodes for error signalization. System memory (today mostly implemented in FLASH technology) is used by a PLC for a process control system. Aside form. this operating system it also contains a user program translated forma ladder diagram to a binary form. FLASH memory contents can be changed only in case where user program is being changed. PLC controllers were used earlier instead of PLASH memory and have had EPROM memory instead of FLASH memory which had to be erased with UV lamp and programmed on programmers. With the use of FLASH technology this process was greatly shortened. Reprogramming a program memory is done through a serial cable in a program for application development. User memory is divided into blocks having special functions. Some parts of a memory are used for storing input and output status. The real status of an input is stored either as “1”or as “0”in a specific memory bit/ each input or output has one corresponding bit in memory. Other parts of memory are used to store variable contents for variables used in used program. For example, time value, or counter value would be stored in this part of the memory. PLC controller can be reprogrammed through a computer (usual way), but also through manual programmers (consoles). This practically means that each PLC controller can programmed through a computer if you have the software needed for programming. Today’s transmission computers are ideal for reprogramming a PLC controller in factory itself. This is of great importance to industry. Once the system is corrected, it is also important to read the right program into a PLC again. It is also good to check from time to time whether program in a PLC has not changed. This helps to avoid hazardous situations in factory rooms (some automakers have established communication networks which regularly check programs in PLC controllers to ensure execution only of good programs). Almost every program for programming a PLC controller possesses various useful options such as: forced switching on and off of the system input/outputs (I/O lines), program follow up in real time as well as documenting a diagram.

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sequence impedance 零序阻抗:zero sequence impedance 电阻:resistor 电抗:reactance 电导:conductance 电 纳:susceptance 无功负载:reactive load 或者QLoad 有功负载: active load PLoad 遥测:YC(telemetering) 遥信:YX 励磁电流(转子电流):magnetizing current 定子:stator 功角:power-angle 上限:upper limit 下限:lower limit 并列 的:apposable 高压: high voltage 低压:low voltage 中 压:middle voltage 电力系统power system 发电机generator 励磁excitation 励磁器excitor 电压voltage 电流current 母 线bus 变压器transformer 升压变压器step-up transformer 高压侧high side 输电系统power transmission system 输电线transmission line 固定串联电容补偿fixed series capacitor compensation 稳定stability 电压稳定voltage stability 功角稳定angle stability 暂态稳定transient stability 电厂power plant 能量输送power transfer 交流AC 装机容量installed capacity 电网 power system 落点drop point 开关站switch station 双回同杆并架double-circuit lines on the same tower 变电站transformer substation 补偿度degree of compensation 高抗high voltage shunt reactor 无功补偿reactive power compensation 故障fault 调节regulation 裕度magin 三

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冲压模具词汇 Counter bored hole 沉孔 Chamfer 倒斜角 Fillet 倒圆角 padding block垫块 stepping bar垫条 upper die base上模座 lower die base下模座 upper supporting blank上承板 upper padding plate blank上垫板 spare dies模具备品 spring 弹簧 bolt螺栓 document folder活页夹 file folder资料夹 to put file in order整理资料 spare tools location手工备品仓 first count初盘人 first check初盘复棹人 second count 复盘人 second check复盘复核人 equipment设备 waste materials废料 work in progress product在制品 casing = containerization装箱 quantity of physical inventory second count 复盘点数量 Quantity of customs count 会计师盘,点数量 the first page第一联 filed by accounting department for reference会计部存查 end-user/using unit(department)使用单位 Summary of year-end physical inventory bills 年终盘点截止单据汇总表 bill name单据名称 This sheet and physical inventory list will be sent to accounting department together (Those of NHK will be sent to financial department) 本表请与盘点清册一起送会计部－(NHK厂区送财会部) Application status records of year-end physical inventory List and physical inventory card 年终盘点卡与清册使用－状况明细表

计算机专业英语报告

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情况不应该出现在文章中。还有些中式英语也会极大地影响我们的阅读，例如说足球比赛，可不是我们想象中的football match （之前有次演讲说，英语里面不能有2个名词的情况，在此就举了个例子bicycle man），而应该做football play亦作soccer play。 2.翻译是一门艺术，从某种意义上来讲是没有标准答案的。 这里本人想要想要阐述这样一种观点，翻译是一个不断精进的过程，翻译最初的目的即是为了实现语言之间的一个互相沟通，然而不同的人对一句话，应该会有着不同的理解。这也就有了译者极大的自由发挥性，但是译者必须准确理解原文的基础之上的。 有三个字可以高度概括翻译的精髓“信，达，雅”，想必大家都应该听过。”“信”指意义不背原文,即是译文要准确,不歪曲,不遗漏,也不要随意增减意思；同样可以举个例子？This is a pan in my hand （请问如何翻译呢？） “达”指不拘泥于原文形式,译文通顺明白;这里就涉及到一个直译和意译的关系啦，否则就会出现像bicycle

过程装备与控制工程专业英语词汇

abrasiveness 研磨；腐蚀absolute 绝对的accumulate 堆积；积累 acid 酸；酸性的，酸味的actuator 执行机构 adjust 调整；调节agitation 搅拌 air preheater 空气预热器 air register 空气调节器airflow 气流 alkali 碱 allowance 公差，容差，容许量alloy 合金 alternating current 交流电 angle 角度，角 apparatus 装置，仪器，仪表application 应用 artificial 人造的；仿造的assembly 装配 atmospheric 大气的，大气层的austenite 奥氏体 automation 自动化，自动操作auxiliary 辅助设备，附属机构backflow 回流 baffle 挡板；折流板；隔板batch 一批，批量 bearing 轴承 bellow 波纹管 belt 带；腰带；地带blade 叶片 blower 鼓风机 boiler 锅炉

bolt 螺栓 bonnet 阀盖，阀帽，机罩box furnace 箱式炉 brittle 易碎的，脆弱的burner 燃烧器 bushing 轴衬；套管butterfly valve 蝶阀capacity 容积 carbon steel 碳钢，碳素钢casing 机壳 cast 浇铸 catalyst 催化剂category 分类，种类cavity 腔；洞，凹处centrifugal force 离心力chamber 腔，室，船舱check valve 止回阀checklist 检查表，清单classify 分类；分等clockwise 顺时针方向的coating 涂层，覆盖层coefficient 系数 coil 盘管，线圈 coking 结焦，焦化 column 圆柱，柱形物combination 结合 combustion 燃烧，氧化 component 成分；组件；零件composition 组成，成分 compressor 压缩机 concentration 浓度 concentric 同轴的，同心的

电气专业英语词汇

电流current 电压voltage 功率power 电阻resistance 电容capacitance 电抗reactance 电阻率resistivity 阻抗impedance 相位phase 有功功率active power 无功功率reactive power 视在功率apparent power 装设功率installed power 供电局power supply authority 电力公司power supply company 发电厂power plant 变电所substation 配电站distribution substation 配变电站transformer station 终端变电站terminal substation 车间变电站substation in workshop : 室变电站indoor substation 自动变电站automatic substation 成套变电站unit substation

高压室H.T room 低压室L.T room 变压器室transformer room 变压器平台transformer platform 柴油发电机室diesel generator room 控制室control room 蓄电池室battery room 值班室duty room 休息室rest room 电容器室condenser room 充电室battery -- charging room 室外储油罐outdoor oil tank 地下油罐underground oil tank 日用油箱day tank 负荷load 一类负荷first-class load 二类负荷second-class load 三类负荷third-class load 照明负荷lighting load 动力负荷power load 电阻负荷resistance load 电抗负荷reactive load 冲击负荷shock load

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