机械工程专业英语论文及翻译题目
在上次的基础上做了对应的调整和适当的修改。望分析体会,以求能有所收获!AbstractThearticleisentitledasProcessToolingDesignandCAD/CAMoftheRockerAxleBasefromChaoYangDieselC,LThedesignaimstocompletethemoduledesignof195dieselrockeraxlebase,thedrawupofitsprocessinglineandprocedurecardandthedesignofmanufacturingspecialfixture,Model-designedbythe3DshapingsoftwarePro/E,thecontentconsistsofthefollowing:solidmoldwhichsparesandblanksarebuiltbythesparemold,designfortheinvestmentcastingmoldsinvolvingtheanalysis,calculationanddesignofmouldjoint,gatingsystem,ejectingmachine,punch-cum-blankingdieandthediebase,ThencompletethefinalassemblingdrawingaccordingtotheengineeringmoduleandtheCAXAEstablishthesparesprocessingtechinicalprocedure,includingtheselectoftheprocessingmethod,TDAftertheanalysis,selectanddesign,finallyaccomplishtheengineeringdrawingbyuseofCAXATAfterreferingtoplentyofdocuments,KeyWords:solidmodel,module,jig,procedure
IntroductionMachining aims to generate the shape of work-piece form a solid body,or to improve the tolerances and surface finish of a previously formed work-piece,by removing excess materials in the form of Machining is capable of creating geometric configurations,tolerances, and surface finishes often unobtainable by any other However, machining removes materials, which has already been paid for, in the form of relatively small particles that are more difficult to recycle and are in greater danger of becoming Therefore,developments often aim at reducing or-if at all possible-eliminating machining, especially in mass For these reasons, machining has lost some important markets, yet, at the same time, it has also been developing and especially having captured new markets with the application of numerical Some feel for the important of machining may be gained from the observation that in 1983 there were about 2 million metal-cutting machine tools in the unite states ( of which some 5% were numerically controlled ) and that labor and overhead costs amounted to $125 billion, or 3% of the GNP
Abstract— Cobots是连续地使用机器人的类 开发高保真度可编程序的variable传输 constraint表面。 Cobots消耗很少电能 ,既使当提供高产力量和他们的传输横跨各种各样是非常有效率的transmission比率。 Cobotic传输也有能力 to作为闸或变得完全地自由。 设计 Cobotic手控制器的and表现,最近a developed六程度自由触觉显示,被回顾。 This设备说明高力学范围和低功率 consumption可达成由cobots。 彻底的比较 the一个cobotic系统的出力效率对常规 提供electro-mechanical系统。机器人技术的Three关键要求使用为 prosthetics和修复是低重量,低功率 consumption和安全。 我们提出cobotic技术作为a 可能论及所有这些问题的transmission建筑学。 Cobots是运用nonholonomic限制的机器人 of 操纵 轮子 关连 相对 速度 mechanism链接。 cobotic传输连续地是a variable传输(CVT)在正面和阴性之间 ratios, 并且 能 关连 二 平移 速度, 二 rotational速度或者对平移的旋转的速度 velocity [1]。 我们最近介绍了Cobotic手 Controller (图 1), a 供给动力的六程度自由 cobot和描述它的能力作为一个触觉接口[2, 3]。 通过本文路线,我们显示出, mechanical 建筑学 并且 传输 使用 在 Cobotic手控制器地址全部三在上面 机器人学的mentioned要求的弭补科和
机械工程专业英语论文及翻译题目答案
这才是翻译!转动在车床的一个部分是几力量的另一个例子在行动的(如图工作旋转的1)正如图所显示,并且切割工具搬入工作,楔住的行动最尖端导致剪切力。以芯片的形式,这力量造成金属似乎流动工作。如果这个制件被拿着在车床之间的中心,中心施加压缩力反对工作。驾驶工作的车床狗倾向于导致剪切力。切割工具的压力反对工作的导致紧张和压缩,并且一次剪的行动。 相当关注给予离心力的行动在砂轮的。那是,比力量拿着在轮子的磨蚀微粒一定强倾向于做旋转的轮子分开高速飞行的粘合剂。为此,一个砂轮的速度不应该超出制造者指定的安全表面限速。与速度的离心力增量。 离心力的The原则用于离心机类型机器设计。有些离心机被用于分离化学制品; 离心铸件过程用于其他去除在金属的杂质。离心力原则也用于共同的装置例如干衣机和在设备控制马达速度和加速移动的机器。
转折的一部分车床在另一个例子是几个部队在行动(如如图1所示) 。作为工作围绕和刀具进入工作,楔入行动的尖端生产剪切This武力造成的金属似乎从流动工作的形式If这个工件之间的中心,车床,中心施加压武力对付狗The车床驱动的工作往往产生剪切The压力的刀具对工作产生紧张和压缩,以及剪切行动。 相当重视行动的离心力在磨削That是,粘接剂持有的磨料颗粒的车轮必须强于力量往往使车轮飞转高除了这个原因For ,速度的砂轮不应超过安全车速限制表面所指明的Centrifugal力量与速度增加。 的原则,离心力所用的离心机设计型Some离心机是用来单独的化学品;其他用于去除杂质的金属离心铸造Centrifugal武力的原则也被用于共同用具,如干衣机在设备和控制电机的速度和加速移动机器。
分很少啊 抽时间翻译 请稍等
机械工程专业英语论文及翻译题目推荐
借助有道词典+猜想:翻得不对的话见笑了!利用运动传递的全路径方法对10连杆运动链中不确定性与同构影响的探究无级变速传动中链节作用力的实验研究看不到具体内容,只猜题目有点难。
Abstract— Cobots是连续地使用机器人的类 开发高保真度可编程序的variable传输 constraint表面。 Cobots消耗很少电能 ,既使当提供高产力量和他们的传输横跨各种各样是非常有效率的transmission比率。 Cobotic传输也有能力 to作为闸或变得完全地自由。 设计 Cobotic手控制器的and表现,最近a developed六程度自由触觉显示,被回顾。 This设备说明高力学范围和低功率 consumption可达成由cobots。 彻底的比较 the一个cobotic系统的出力效率对常规 提供electro-mechanical系统。机器人技术的Three关键要求使用为 prosthetics和修复是低重量,低功率 consumption和安全。 我们提出cobotic技术作为a 可能论及所有这些问题的transmission建筑学。 Cobots是运用nonholonomic限制的机器人 of 操纵 轮子 关连 相对 速度 mechanism链接。 cobotic传输连续地是a variable传输(CVT)在正面和阴性之间 ratios, 并且 能 关连 二 平移 速度, 二 rotational速度或者对平移的旋转的速度 velocity [1]。 我们最近介绍了Cobotic手 Controller (图 1), a 供给动力的六程度自由 cobot和描述它的能力作为一个触觉接口[2, 3]。 通过本文路线,我们显示出, mechanical 建筑学 并且 传输 使用 在 Cobotic手控制器地址全部三在上面 机器人学的mentioned要求的弭补科和
原文:9 MACHINABILITYThe machinability of a material usually defined in terms of four factors:1、$ l m I `5 L* eSurface finish and integrity of the machined part;2、; u: I% F/ b$ t( O" ?' I2 MTool life obtained;3、1 F }: a% W1 W5 R l7 @* q; jForce and power requirements;4、 p) @0 }5 c* S+ I: IChip Thus, good machinability good surface finish and integrity, long tool life, and low force And power As for chip control, long and thin (stringy) cured chips, if not broken up, can severely interfere with the cutting operation by becoming entangled in the cutting Because of the complex nature of cutting operations, it is difficult to establish relationships that quantitatively define the machinability of a In manufacturing plants, tool life and surface roughness are generally considered to be the most important factors in Although not used much any more, approximate machinability ratings are available in the example 1 Machinability Of Steels6 }" `- x) E* V* T+ DBecause steels are among the most important engineering materials (as noted in Chapter 5), their machinability has been studied The machinability of steels has been mainly improved by adding lead and sulfur to obtain so-called free-machining Resulfurized and Rephosphorized , m# n- K R; @Sulfur in steels forms manganese sulfide inclusions (second-phase particles), which act as stress raisers in the primary shear As a result, the chips produced break up easily and are small; this improves The size, shape, distribution, and concentration of these inclusions significantly influence Elements such as tellurium and selenium, which are both chemically similar to sulfur, act as inclusion modifiers in resulfurized Phosphorus in steels has two major It strengthens the ferrite, causing increased Harder steels result in better chip formation and surface Note that soft steels can be difficult to machine, with built-up edge formation and poor surface The second effect is that increased hardness causes the formation of short chips instead of continuous stringy ones, thereby improving Leaded S A high percentage of lead in steels solidifies at the tip of manganese sulfide In non-resulfurized grades of steel, lead takes the form of dispersed fine Lead is insoluble in iron, copper, and aluminum and their Because of its low shear strength, therefore, lead acts as a solid lubricant (Section 11) and is smeared over the tool-chip interface during This behavior has been verified by the presence of high concentrations of lead on the tool-side face of chips when machining leaded When the temperature is sufficiently high-for instance, at high cutting speeds and feeds (Section 6)—the lead melts directly in front of the tool, acting as a liquid In addition to this effect, lead lowers the shear stress in the primary shear zone, reducing cutting forces and power Lead can be used in every grade of steel, such as 10xx, 11xx, 12xx, 41xx, Leaded steels are identified by the letter L between the second and third numerals (for example, 10L45) (Note that in stainless steels, similar use of the letter L means “low carbon,” a condition that improves their corrosion )However, because lead is a well-known toxin and a pollutant, there are serious environmental concerns about its use in steels (estimated at 4500 tons of lead consumption every year in the production of steels) Consequently, there is a continuing trend toward eliminating the use of lead in steels (lead-free steels) Bismuth and tin are now being investigated as possible substitutes for lead in Calcium-Deoxidized S An important development is calcium-deoxidized steels, in which oxide flakes of calcium silicates (CaSo) are These flakes, in turn, reduce the strength of the secondary shear zone, decreasing tool-chip interface and Temperature is correspondingly Consequently, these steels produce less crater wear, especially at high cutting Stainless S Austenitic (300 series) steels are generally difficult to Chatter can be s problem, necessitating machine tools with high However, ferritic stainless steels (also 300 series) have good Martensitic (400 series) steels are abrasive, tend to form a built-up edge, and require tool materials with high hot hardness and crater-wear Precipitation-hardening stainless steels are strong and abrasive, requiring hard and abrasion-resistant tool The Effects of Other Elements in Steels on M The presence of aluminum and silicon in steels is always harmful because these elements combine with oxygen to form aluminum oxide and silicates, which are hard and These compounds increase tool wear and reduce It is essential to produce and use clean Carbon and manganese have various effects on the machinability of steels, depending on their Plain low-carbon steels (less than 15% C) can produce poor surface finish by forming a built-up Cast steels are more abrasive, although their machinability is similar to that of wrought Tool and die steels are very difficult to machine and usually require annealing prior to Machinability of most steels is improved by cold working, which hardens the material and reduces the tendency for built-up edge Other alloying elements, such as nickel, chromium, molybdenum, and vanadium, which improve the properties of steels, generally reduce The effect of boron is Gaseous elements such as hydrogen and nitrogen can have particularly detrimental effects on the properties of Oxygen has been shown to have a strong effect on the aspect ratio of the manganese sulfide inclusions; the higher the oxygen content, the lower the aspect ratio and the higher the In selecting various elements to improve machinability, we should consider the possible detrimental effects of these elements on the properties and strength of the machined part in At elevated temperatures, for example, lead causes embrittlement of steels (liquid-metal embrittlement, hot shortness; see Section 3), although at room temperature it has no effect on mechanical Sulfur can severely reduce the hot workability of steels, because of the formation of iron sulfide, unless sufficient manganese is present to prevent such At room temperature, the mechanical properties of resulfurized steels depend on the orientation of the deformed manganese sulfide inclusions (anisotropy) Rephosphorized steels are significantly less ductile, and are produced solely to improve 2 Machinability of Various Other MetalsAluminum is generally very easy to machine, although the softer grades tend to form a built-up edge, resulting in poor surface High cutting speeds, high rake angles, and high relief angles are Wrought aluminum alloys with high silicon content and cast aluminum alloys may be abrasive; they require harder tool Dimensional tolerance control may be a problem in machining aluminum, since it has a high thermal coefficient of expansion and a relatively low elastic Beryllium is similar to cast Because it is more abrasive and toxic, though, it requires machining in a controlled Cast gray irons are generally machinable but Free carbides in castings reduce their machinability and cause tool chipping or fracture, necessitating tools with high Nodular and malleable irons are machinable with hard tool Cobalt-based alloys are abrasive and highly work- They require sharp, abrasion-resistant tool materials and low feeds and Wrought copper can be difficult to machine because of built-up edge formation, although cast copper alloys are easy to Brasses are easy to machine, especially with the addition pf lead (leaded free-machining brass) Bronzes are more difficult to machine than Magnesium is very easy to machine, with good surface finish and prolonged tool However care should be exercised because of its high rate of oxidation and the danger of fire (the element is pyrophoric)Molybdenum is ductile and work-hardening, so it can produce poor surface Sharp tools are Nickel-based alloys are work-hardening, abrasive, and strong at high Their machinability is similar to that of stainless Tantalum is very work-hardening, ductile, and It produces a poor surface finish; tool wear is Titanium and its alloys have poor thermal conductivity (indeed, the lowest of all metals), causing significant temperature rise and built-up edge; they can be difficult to Tungsten is brittle, strong, and very abrasive, so its machinability is low, although it greatly improves at elevated Zirconium has good It requires a coolant-type cutting fluid, however, because of the explosion and 3 Machinability of Various Materials; n+ {0 C# N' t: K& D5 Y7 nGraphite is abrasive; it requires hard, abrasion-resistant, sharp Thermoplastics generally have low thermal conductivity, low elastic modulus, and low softening Consequently, machining them requires tools with positive rake angles (to reduce cutting forces), large relief angles, small depths of cut and feed, relatively high speeds, andproper support of the Tools should be External cooling of the cutting zone may be necessary to keep the chips from becoming “gummy” and sticking to the Cooling can usually be achieved with a jet of air, vapor mist, or water-soluble Residual stresses may develop during To relieve these stresses, machined parts can be annealed for a period of time at temperatures ranging from % Q6 X5 q6 [ C$ F9 Ito / C+ z W( L4 N& I$ }( to ), and then cooled slowly and uniformly to room Thermosetting plastics are brittle and sensitive to thermal gradients during Their machinability is generally similar to that of Because of the fibers present, reinforced plastics are very abrasive and are difficult to Fiber tearing, pulling, and edge delamination are significant problems; they can lead to severe reduction in the load-carrying capacity of the Furthermore, machining of these materials requires careful removal of machining debris to avoid contact with and inhaling of the The machinability of ceramics has improved steadily with the development of nanoceramics (Section 5) and with the selection of appropriate processing parameters, such as ductile-regime cutting (Section 2)Metal-matrix and ceramic-matrix composites can be difficult to machine, depending on the properties of the individual components, , reinforcing or whiskers, as well as the matrix 4 Thermally Assisted MachiningMetals and alloys that are difficult to machine at room temperature can be machined more easily at elevated In thermally assisted machining (hot machining), the source of heat—a torch, induction coil, high-energy beam (such as laser or electron beam), or plasma arc—is forces, (b) increased tool life, (c) use of inexpensive cutting-tool materials, (d) higher material-removal rates, and (e) reduced tendency for vibration and It may be difficult to heat and maintain a uniform temperature distribution within the Also, the original microstructure of the workpiece may be adversely affected by elevated Most applications of hot machining are in the turning of high-strength metals and alloys, although experiments are in progress to machine ceramics such as silicon SUMMARY' k4 F( E u# |: n6 i6 hMachinability is usually defined in terms of surface finish, tool life, force and power requirements, and chip Machinability of materials depends not only on their intrinsic properties and microstructure, but also on proper selection and control of process 因文章太长,译文请点链接%3A///bbs/thread-27361-1-html
机械工程专业英语论文及翻译题目大全
分很少啊 抽时间翻译 请稍等
在上次的基础上做了对应的调整和适当的修改。望分析体会,以求能有所收获!AbstractThearticleisentitledasProcessToolingDesignandCAD/CAMoftheRockerAxleBasefromChaoYangDieselC,LThedesignaimstocompletethemoduledesignof195dieselrockeraxlebase,thedrawupofitsprocessinglineandprocedurecardandthedesignofmanufacturingspecialfixture,Model-designedbythe3DshapingsoftwarePro/E,thecontentconsistsofthefollowing:solidmoldwhichsparesandblanksarebuiltbythesparemold,designfortheinvestmentcastingmoldsinvolvingtheanalysis,calculationanddesignofmouldjoint,gatingsystem,ejectingmachine,punch-cum-blankingdieandthediebase,ThencompletethefinalassemblingdrawingaccordingtotheengineeringmoduleandtheCAXAEstablishthesparesprocessingtechinicalprocedure,includingtheselectoftheprocessingmethod,TDAftertheanalysis,selectanddesign,finallyaccomplishtheengineeringdrawingbyuseofCAXATAfterreferingtoplentyofdocuments,KeyWords:solidmodel,module,jig,procedure
Abstract— Cobots是连续地使用机器人的类 开发高保真度可编程序的variable传输 constraint表面。 Cobots消耗很少电能 ,既使当提供高产力量和他们的传输横跨各种各样是非常有效率的transmission比率。 Cobotic传输也有能力 to作为闸或变得完全地自由。 设计 Cobotic手控制器的and表现,最近a developed六程度自由触觉显示,被回顾。 This设备说明高力学范围和低功率 consumption可达成由cobots。 彻底的比较 the一个cobotic系统的出力效率对常规 提供electro-mechanical系统。机器人技术的Three关键要求使用为 prosthetics和修复是低重量,低功率 consumption和安全。 我们提出cobotic技术作为a 可能论及所有这些问题的transmission建筑学。 Cobots是运用nonholonomic限制的机器人 of 操纵 轮子 关连 相对 速度 mechanism链接。 cobotic传输连续地是a variable传输(CVT)在正面和阴性之间 ratios, 并且 能 关连 二 平移 速度, 二 rotational速度或者对平移的旋转的速度 velocity [1]。 我们最近介绍了Cobotic手 Controller (图 1), a 供给动力的六程度自由 cobot和描述它的能力作为一个触觉接口[2, 3]。 通过本文路线,我们显示出, mechanical 建筑学 并且 传输 使用 在 Cobotic手控制器地址全部三在上面 机器人学的mentioned要求的弭补科和
机械工程专业英语论文及翻译范文
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分很少啊 抽时间翻译 请稍等
In view of the pivotal role of rolling bearing in rotating machinery and equipment, it is very important to diagnose the fault, and it is the best way and means to establish a set of efficient and convenient bearing fault diagnosis Most of the traditional diagnostic system depends on a number of professional hardware equipment, these instruments are obviously difficult to meet the requirements of information technology, and caused a lot of hardware With the rapid development of computer technology, the virtual instrument technology has been applied to the field of bearing fault diagnosis has become a This paper introduces the characteristics and structure of virtual instrument On this basis, the resonance demodulation technique is introduced into the signal analysis of virtual instrument to extract and analyze the bearing fault Finally, based on LABVIEW platform, a set of virtual instrument for bearing fault signal analysis is