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淘豆网网友近日为您收集整理了关于毕业设计论文 模具专业 外文文献翻译 中英文的文档，希望对您的工作和学习有所帮助。以下是文档介绍：毕业设计论文 模具专业 外文文献翻译 中英文 1附录一科技文献翻译原文:The process is similar in most custom rollforming shops.thecustomer sends a part design andyou need to make it.You order what you need from your tool supplier,place the new tooling onyour mill and run the job.But hidden in that simple sequence are numerous potential pitfallsthat can turn the prospect of profitable work into a nightmare of out-of-spec sections,failedtooling and fault-finding,not to mention money flying out the window against the backdrop ofan i(来源：淘豆网[/p-4186272.html])dle rollforming mill or a heap of scrapped material.The stakes are as high as ever for custom follformers and a proper tooling launch can helpensure essful job runs,according to Chuck Summerhill,engineering manager forRoll-Kraft,Mentor,OH,a designer and supplier of rollform tooling.He offers some tips you can useto help smooth tool selection,setup and operation.Get Involved with Product DesignIn the beginning,a customer likely provides a custom roll(来源：淘豆网[/p-4186272.html])former with a print with across-sectional shape of the part,and specifications on the length,number of holes or notchesand any value-added process requirements.Carefully study these customer expectations,saysSummerhill,and consult with your customer and tooling provider.If possible,changing someaspects or part design or easing some noncritical tolerances can smooth out the manufacturingprocess,simplify tooling an reduce piece-part price.Often,if it’(来源：淘豆网[/p-4186272.html])s not too late in the process,theroll form-tooling supplier can ma ke suggestions in part design to save the rollformer andend-use customer money.Don’t petitive-bidding and cost pressures,the temptation exists to try and save upfront ontooling costs.Rollform-tooling providers well work closely with rollformers to design,build andsupply-tooling providers will work closely with rollformers to design,build and supply toolingideal for the job,promising (来源：淘豆网[/p-4186272.html])can lead to problems.“Be careful about trying to cut corners,”cautions Summerhill.”For example,a rollformer maythell its tooling supplier,I don’t have a 12-station in 10 stations?That can lead to difficultiesfurther along in the process.Challenges arising from cutting corners will pop up every time arollformer tries to set up for the job,andextra tweaking time is required to get a machine toproduce the part correctly.Opting for the right tooling for(来源：淘豆网[/p-4186272.html]) the job may cost more up front but ityields a simplified setup and easily repeatable process,saving time and money over the life of ajob.”Verify SetupsWith part design finalized and tooling selected,tool design and build is next on the agenda.Agood tool supplier will incorporate features into the design to ease operator setup.Tool-setupcharts can be invaluable.“These instructions,included with the tooling,provide information on how to gauge the rol(来源：淘豆网[/p-4186272.html])lsproperly on the rollforming machine,for example,”says Summerhill.”Again,incorporating such2items can cost a bit more upfront,but they provide operators additional ways to verify setups.Another simplifier:Most rollform-tool suppliers include gauging hubs on tooling,allowingoperators to run the strip into the rolls and easily set proper roll gaps.Cheking Templates a Good IdeaA proactive approach involves checking templates,as Summerhill calls them.“(来源：淘豆网[/p-4186272.html])Many of our high-volume tube and pipe rollformiing customers use templates made from thinsteel,”he says.”These checking templates are basically mirror images of the tooling.The operatorsets the template on top of the rolls and can see where the rolls have been wearing,just byseeing light.The template shows wear an that is the determining factor of when a rollformershould regrind the rolls or place a new piece into a roll.“Unfortunately,”continues Su(来源：淘豆网[/p-4186272.html])mmerhill,”not many custom rollformers use templates.In all myyears in rollforming,I’ve onlymade checking templates about two times for a customrollformer’stool set.Often,operators will visually inspect rolls and see grooves in the tools or note scratchesand scuffs on sections exiting the line.Pacific Energy Fireplace Products Ltd.,of Vancouver Island in Duncan,British Columbia,hasbeen ma nufacturing high-efficiency wood-and gas-fired appliances for (来源：淘豆网[/p-4186272.html])more than 25years.Its useof unique sheetmetal forming tools on two Finn-Power Shear Genius(SG)cells-shear-and-punchmachines-demonstrate the ability to use full-tonnage upforming stations with a tool larger than3.5-in.dia.The firm purchased its first SG in August 2003 to take the fabrication workload fromthree of its aging stand-alone rurret presses that it coupled with manual shearing.That moveyielded a 40-50percent jump in parts production.And when(来源：淘豆网[/p-4186272.html]) orders for its appliances took offafter an industry trade show late in 2004-the typical end-of-season slowdow nevermaterializedand the firm found itself running 24-7even after the holiday season,It ran to Finn Power for asecond SG to keep up with demand.Pacific Energy had introduced a new line of luxury gasfireplaces that spurred orders and pressure production capacity.Says Trevor Gregson,Pacific Energy production manager:”In the last two to three years we haveeasily doubled in size.We have had som growing pains,including bottlenecks in sheetmetalfabrication where we’ve had to run day and night.”A Shear Genius bines a 33-ton 20-station hydraulic turret punch press with aright-angle shear.The turret press features programmable ration depth,ram speed andstroke length,and offer a work area of 60by 100 in.The shear houses a 31.6 -in.X-axis blade anda 59.64-in.Y-axis blade,and can slice mild steel to 9gauge and Type 304 stainless steel to 12gauge.Pacific Energy typically processes steel sheet from 26gauge to3/16 in.thick,It also runs somestainless steel to 12 gauge as well as a bit of aluminized and other coated steels.Avoiding Sheet MarkingTo produce a 4..125-in.-dia.knowckout in 16-gauge hot-rolled steel,with high sheet traverse3speeds for all punching and sheet movements along with minimal sheet marking,requires afabricator to avoid using high form tools in the rurret.At Pacific Energy,this is achieved by usingthe SG’s upforming system,which has a separartely controlled secondary 25-ton lower hydraulicram that includes coining dwell built into the upform process.The machine can be programmedto form in eighter direction depending on type of form required.It also offers three additionalforming modes:deep draw,with built-in coining delay that finmechanicalbottoming,fand electronic stroke control.To upform the knockouts,Pacific Energy employs a special two-piece tool from Mate PrecisionTooling,Anoka,MN.The tool includes a custom3.5-in. holder that allows for assembly in theturret,and offers the flexibility to allow use of regular 3.5-in. tooling in that station.Finn-Power’s upforming system allows full tonnage throughout the punch stroke in an upwardmovement in the turret.This feature provides Pacific Energy the maximum flexibility in achievingvarious forming options.Unlisk conventional downforming operations,upforming means that thedie never rests higher than ta ble level.So,when the sheet moves it can’t crash into thetools,leading to machine downtime,and avoids any scratches on thelower sheet surface.This isparticularly important with coated materials or materials where cosmetic appearance is critical.Tighter TolerancesImproved hydraulics and, in some presses, the use of electrically driven punch heads,haveallowed stampers to consider C punching machines on tight-tolerance parts such ascard guides used in munications equipment.Where precision is critical in forms,saysPatrick Canning, vice president, Finn-Power, Schaumburg,IL, shops might look to electricmachines, where we can deliver form repeatability of +0.0004 in.Improved forming on punching machines es thanks to better hydraulics in newermachines,according to Bob Coscarelli, CNC product manager for Amada America, BuenaPark,CA.We see greatly improved control of the stroke both its distance and dwell so that theforming of louvers,lances,extrusions and the like occur quickly and very precisely,he says. Thesehydraulic enhancements, along with improved controls introduced in the late 1990s, deliver, onaverage, a 30-percent improvement in productivity and quality for our customers.Trumpf’s Morissette concurs,adding:”Advances in hydraulics allow machines to stroke fasterwhen upforming stiffening ribs. During high-speed beading of ribs, we can stroke at 2800strokes/ min. This higher speed, along with improved hydraulic control over tool-retractheight,allows us to do more than form—we’re really flowing the material now. This givesimproved appearance.The E5 Work Center is the latest stand-alone turret-punch press from Finn-Power, bringing sixaxes C management,and a servomotordriven punch mechanism that,according toPatrick Canning, company vice president, can reduce electrical costs by as much as 75 pared to an all-hydraulic machine. It forms to 0.630 in. high, with repeatability to +0.004 in.To optimize throughput, it yields higher ram speed in the upper stroke area,where force is not4required, then delivers the needed force and precise positioning accuracy in the lower stroke.Equipped with the optional upforming mechanism,also servomo tor-driven, the forming dielocates below the table surface during sheet movement—no scratches or collisions.A single ACservomotor system also drives the Auto-Index system, with full 360deg.rotation in0.001-in.increments.For automation,which Canning says now panies 70 percent of thefirm’s orders, Finn-Power offers the flexible manufacturing unit (FMU) for loading of full-sizedsheets.Remote Machine C punching machines are doing more work than ever before,eliminating the need formany secondary operations so that shops can plete parts in one setup, timely urate machine diagnostics minimizing downtime for maintenance and repair takes on addedimportance.Shops need to perform maintenance before anything breaks,avoid unnecessarymaintenance and machine downtime, and ensure prompt and short maintenance calls to returnmachines to production ASAP.“Customers have been asking, particularly within the last five years,”says Canning,”for a betterway to monitor their equipment in order to optimize run time.A phone-line hookup enables usto now monitor machines for our customers,looking at parameters such as how much oil flowsthrough a machine or how many miles a ballscrew has logged. We can take the data collectedand produce reports periodically to trigger maintenance. Half of our new customers thatpurchase a machine now purchase this type of service—they are so dependent on the machinesthat they need as much as help as they can get to avoid unnecessary downtime. This meansperforming maintenance when its needed,not before nor when its too late and a es necessary. Customers can receive software updates to their equipment online.We candiagnose problems with a machine or controller remotely and send a needed repair part thereahead of the technician so when he arrives, the part he needs is there. This can shave days offthe repair process.”译文:范库佛峰的太平洋能量炉制造有限公司在邓肯,哥伦比亚已经制造了高功率的气炉设备 25 年之久。它们将独特的薄片制造工具装在剪切压力机的两个剪切单元上,显示了有能力使用装载 3.5 英寸直径***的大吨位的上成型工作站。公司在 2003 年 8 月购买了第一台剪切机来替代已经老化了的单柱压力头和人工修剪。使生产量提高了 40%~50%。自 2004的工业贸易展示以后,用户的需求量突飞猛增。为了满足需求量,公司增添了第二台剪切机。太平洋能源公司引进了一条昂贵的气炉设备来提高生产能力。太平洋能源公司的生产部经理 Trevor Gregson 说,“在过去的两三年中,我们的销量很容易的就翻了一倍。但是我们随之有一些成长的烦恼,包括在金属片制造的瓶颈,使我们不得不每日每夜轮翻的工作。5一个剪切机由一个 33 吨有 20 个位置的液压冲压柱构成。这个冲压头可调节冲压深度,冲压速度和冲压长度,提供了一个 60 英寸至 100 英寸的工作区域。在剪切区中,分别在 X方向上一条 31.6 英寸长和在 Y 方向上一条 59.64 英寸长的刀刃,能够剪切 9 个厚度的轻钢,和 12 个厚度的 304 钢。在厚 16 的热卷钢上敲一个 4.125 英寸直径的需要制造者避免采用较高的成型工具。在太平洋能源公司,使用了 SG 的倒冲系统很好的实现了控制。它包括了一个其控制作用的 25 吨的液压系统。该机器能根据需求来改变不同的成型方向。它能提供三种成型模式,深拉伸(如果设置冲压延时,可用于制作压纹),精确成型,以及电子冲压控制。在反冲压中,太平洋能源公司是用了来自于 Mate Precision Tooling 的一种特殊的双片***。这种***有一个 3.5 英寸的常规夹头,用来夹装在冲压柱上,以及提供了一个标准的 3.5 英寸***装置。Finn-Power 的倒冲系统给太平洋能源公司提供了很高的适应性用于不同成型种类的选择。不像传统的成型系统,倒冲意味着模具永远不会在高于工作面上停下。当金属片移动的时候,***不会擦碰到产品表面,从而避免了在产品上刮出痕迹的情况。在金属土过层的情况下,这种避免就显得尤为重要。挤出工具在太平洋能源公司在 SG 设备上使用了一个 4.125 英寸的挤出***,其功能和冲压工具类似。它能将擦伤减到最小程度,提高加工速度。太平洋能源公司使用 SG 设备使用 Mate 的 Novaoblong 挤出***。挤出用散热部件通过通风口来驱散热量。这个过程和大多数的自动卷料装置工厂的过程差不多。客户递交零件设计,然后由你来做。你提出你的***需求,然后安装在你的铣床上进行加工。但这个过程,其中隐藏了很多很多潜在的缺陷,会导致将一个很好的产品报废。按照 Roll-Kraft 的工程师 Chuck Summerhill 说,桩子和普通的自动卷料料装置一样高,合适的***能保证工作的顺利进行。Chuck Summerhill 是身为一名自动卷料装置的设计师与供应者。他提供了一些关于帮助***的选择,安装,操作的小诀窍。关于产品设计起初,一个客户可能提供给卷料供应商的是一个打印的零件的截面图,它详述了长度,孔、槽的数量以及一些附加的要求。Summerhill 提到,认真阅读客户的期望要求,然后与你的客户和***供应商进行恰谈。如果可以,改变部件的一些设计方面或者降低某些不重要的公差,这样可以方便生产过程,简化***以及降低零件的价格。在激烈的价格竞争中,节省***费用费用将变得有味的具有诱惑。卷料***的供应者对其客户提供设计,制造及提供***来优化工作,但是要将各方面都处理好是一个很大的问题。“注意切角”Summerhill 提醒到,“例如,一个卷料供应商往往会对***供应商这么说:“我们无法提供你所做希望的 12 台卷料机,能提供 10 台吗。”这将会导致很大的困难。选择合适的***会使成本上升,但是它能够简单的安装,以及再处理,通过节约生产周期来节约了钱。在设计稿定下来,***也选好了之后,就开始制造了。一个好的***供应商会结合特点来设计***给客户使用。***安装说明是毫无意义的。这些说明,包括***,提供了怎样正确测量在卷料机上的圆筒,他们也提供给了操作者一些测量方法。6另外,大多数卷料***供应商包括***毂测量允许操作者通过运行皮带来设置滚轮间隙。我们的许多管子和管道卷料用户用金属片制作的模版来检测。这些检验模版是基于***镜像的形状。操作者将模版放在卷筒上通过透光可以看出卷筒哪里磨损了。用模版来显示磨损是最直接的方法来获知滚筒需要再研磨或者还是需要更换一个新的。不幸的是,很多用户不用模版。我许多年做下来,只为客户做过两次模版检测。通常,操作者仅仅凭视觉来检测滚筒以及***的凹槽,观察其刮痕和磨损。较高的忍受力某些压力机改进了液压系统,用电来驱动冲头这使得模压工能使用这些机器对通信设备中的导向卡的耐用零部件进行加工。“而这些部件的形状精度是很关键的,” PatrickCanning 总裁说,“Finn-Power, Schaumburg,IL 这些商店期待着电子器械,它们的重复精度为+0.0004 in。Bob Coscarelli 来自于 Amada America, Buena Park,CA C 产品经理说:“冲压成形的改进也是由于新机器中有较好的液压系统。”他说:“大家能发现冲压时对冲压距离及孔的加工的控制有了很大的改进,这使得挖空,切割,挤压这些加工又快又精确。”液压的改进和提高了的控制系统在九十年代后期,把我们销售给客户的产品生产率及质量平均提高了 30%。Trumpf’s Morissette 也说:“在加工加强筋时,改进了的液压系统能使机器有较快的冲压速度,2800 strokes/ min。如此快的速度以及改进了的液压缩进控制使我们能做得比现在更多。这使得有了改进的可能。E5 加工中心是最新的采用 Finn-Power 的独立的,C 管理的六轴冲压机,按照Patrick Canning,公司的总裁的话来说,这比起任何一种液压机来说能减少 75%的电力开支。它的成形高度为 0.630in.高,能达到+0.004 in 的重复性。为了提高生产力,在对力没有要求的冲压上半部分它有着较快的冲压速度,在冲压下半程它提供所需的力和精确的位置精度。在安装了这个可变的成形机器后,即使是伺服调制器,成型模具位于工作台下面在运动中也不会发生刮擦和碰撞。单单一个 AC 伺服调制器系统也能 360 度(旋转增量为 0.001in)驱动 Auto-Index 系统。就自动化而言,Canning 说,公司有着 70%的订购者,Finn-Power 提供灵活制造加工单元为大规模的纸卸载。C 冲压机能胜更多的工作,它去除了许多辅助操作,这就使厂商能一步完成整个零件的加工。及时准确的器械诊断能减少停工检修期,这也十分重要。厂商必须在发生故障前进行保养,避免不必要的维护和停工期,这也确保了讯速及时的把机器送去制造商进行维护。Canning 说:“客户们一直在询问,尤其是近五年,关于控制机械减少运行时间的更好的办法。电话热线使我们能为客户们监控设备,看看参数比如有多少流过机器,滚珠丝杠转了多少公里。我们会收集数据,定期的写报告,进行保养。有一半的购买了机器的新用户现在已经买了这类服务。他们是如此依赖这些机器,所以他们需要尽量多的帮助来避免不必要的停工检修期。这意味着,当机器需要维护时就要进行维护,不要提早也不要等的太晚,以至于不得不进行修理。播放器加载中，请稍候...
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毕业设计论文 模具专业 外文文献翻译 中英文 1附录一科技文献翻译原文:The process is similar in most custom rollforming shops.thecustomer sends a part design andyou need to make it.You order what you need from your tool supplier,place the new tooling onyour mill and run the job.But hidden in that simple...
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