機(jī)械加工畢業(yè)設(shè)計(jì)外文翻譯--加工角落軟件改善鑄造設(shè)計(jì)生產(chǎn)力

1、<p><b>　　外文翻譯原文一</b></p><p>　　Tooling Corner: Software improves mold-design productivity</p><p>　　Author: Laura Carrabine</p><p>　　Editor's note: Laura Carrabin

2、e is a consultant for Moldflow Corp. </p><p>　　It is well understood that proper design of injection molds is critical to producing functional plastic parts. What is less well understood is how to use simula

3、tions to optimize part quality and an operation’s overall profitability. Designers of high-cost molds have generally embraced injection molding simulation to optimize their designs. However, the same cannot be said

4、of designers of medium-cost molds.</p><p>　　At far right, a simulation identifies circuit flow rate. The near right image shows Reynolds numbers, a measure of laminar, transition, or turbulent flow.</p>

5、;<p>　　The far left image shows deflection from all effects. At near left is a “stop light” representation (red, yellow, green), identifying locations of warpage in the part.</p><p>　　Using the averag

6、e mold cost as the criteria, injection molds can be classified into three groups. Molds with an average cost exceeding $75,000 can be considered high-cost molds and comprise less than 10% of all molds manufactured. About

7、 50% of molds cost between $25,000 and $75,000. The remaining 40% of the molds manufactured are considered low-cost at less than $25,000. </p><p>　　The Moldflow Plastics Advisers (MPA) 7.0 software addresses

8、 the needs of both medium- and high-cost molds.</p><p>　　Optimizing Molds </p><p>　　Simulation technology enables designers of both high- and medium-cost molds to reduce their reliance on time-c

9、onsuming and often problem-wrought past project experience. </p><p>　　With the software, users can predict and solve problems in the earliest stages of product development rather than relying on “rule-of-thu

10、mb” engineering. Manufacturing constraints can be considered at the same time as form, fit, and function. </p><p>　　The software allows users to create and simulate plastic flow through single-cavity, multic

11、avity, and family molds. Users can optimize gate type, size, and location, as well as runner layout, size, and cross-sectional shape. Analysis results include cycle time, clamp tonnage, and shot size, which help the desi

12、gn team choose the clamping force and the platen size of the injection molding machine and minimize cycle times. One add-on module allows users to simulate multiple phases of the injection </p><p>　　Packing

13、and Cooling </p><p>　　One module simulates the packing phase of the injection molding process to predict and minimize undesirable part shrinkage, and also provides an indicator that shows if a part is likely

14、 to warp or deform beyond acceptable levels. </p><p>　　Packing, the second stage of the injection molding process, holds the key to achieving the right balance between part quality, part cost, and cycle time

15、. Mold designers can set up and evaluate packing profiles to determine the optimal packing pressure and duration of packing. </p><p>　　Using the packing analysis results, mold designers can identify areas of

16、 high, nonuniform volumetric shrinkage that could contribute to part warpage and view the distribution of cooling time to identify areas that dictate cycle time. </p><p>　　The warpage indicator analysis show

17、s the deflected shape of a part—a valuable tool in visualizing the part shrinkage and warpage. Mold designers can also scale the deflected shape for better visualization of part deformation. Using this tool to view the n

18、et shape of the part, mold designers can evaluate specific areas of the part that need to be within specified warpage levels. The warpage indicator result is a traffic-light (red, yellow, green) plot that highlights the

19、areas where part warpage </p><p>　　Using this tool, mold designers can evaluate whether changes made to the part or mold design, or to the material or process conditions, will bring the part warpage to withi

20、n acceptable levels. The cooling module simulates the cooling phase of the injection molding process so that users can optimize mold designs for uniform cooling and minimum cycle times. </p><p>　　Mold design

21、ers can leverage several options to design their cooling circuits, including importing from a CAD system, using an automatic wizard, or using modeling tools that are integral to the cooling module. </p><p>　

22、　The cooling circuits can incorporate circular and semicircular channels, hoses, baffles, and bubblers. After the cooling circuits are laid out and cooling entrances to each circuit specified, mold designers can launch a

23、 cooling analysis. Indicators such as pressure drop, Reynolds number, flow rate, and coolant temperature can be used to help identify inefficient circuits. </p><p>　　Part-surface temperature is useful in spo

24、tting nonuniform cooling patterns that can potentially induce warpage in the part. In addition, the software features a tool that helps users estimate the total job cost by considering expenses including resin costs, mol

25、d manufacturing costs, molding machine operating costs, and the cost of post-molding operations. </p><p>　　The software automatically generates Internet-ready reports to facilitate communication among all me

26、mbers of the design-through-production team, including those at remote locations. Using these reports allows early review and feedback from all parties involved in the part and mold design.</p><p><b>　

27、　外文翻譯譯文</b></p><p>　　加工角落：軟件改善鑄造設(shè)計(jì)生產(chǎn)力</p><p><b>　　作者：勞拉·凱拉賓</b></p><p>　　編者注：勞拉·凱拉賓是莫德弗勞公司的顧問</p><p>　　很好理解注塑模的合理設(shè)計(jì)對生產(chǎn)功能性的塑料零件至關(guān)重要。比較不好理解的是如

28、何用仿真的方式來對零件質(zhì)量和操作的整體效益進(jìn)行最優(yōu)化處理。</p><p>　　高花費(fèi)模具的設(shè)計(jì)師們一般會(huì)通過模具仿真來優(yōu)化他們的設(shè)計(jì)。盡管如此，中等花費(fèi)模具的設(shè)計(jì)師們可就不一樣了。</p><p>　　在最右端，是在仿真識別電路流動(dòng)速度。近右端的圖像展示了對薄片，轉(zhuǎn)換，或端流估量的雷諾茲數(shù)。</p><p>　　最左端的圖像展示了所有影響引起的偏差。在近左端的是一

29、個(gè)“靜態(tài)光”顯示（紅，黃，綠），來鑒別零件上熱變形的部位。</p><p>　　用平均鑄造花費(fèi)作為標(biāo)準(zhǔn)，注塑?？梢员粍澐譃槿箢悺Ｆ骄ㄙM(fèi)超過75000美元的模具被認(rèn)為是高花費(fèi)模具通常少于整個(gè)模具生產(chǎn)的10%。大約50%的模具要花費(fèi)在25000美元到75000美元之間。剩余的40%的被認(rèn)為是低花費(fèi)生產(chǎn)模具花費(fèi)要少于25000美元。</p><p>　　MPA7.0軟件滿足中高端模具的需要。

30、</p><p><b>　　最優(yōu)化模具</b></p><p>　　仿真技術(shù)幫助中高端模具設(shè)計(jì)者減少了他們對時(shí)間的依賴和問題多多的計(jì)劃經(jīng)歷。</p><p>　　通過軟件，使用者可以在最早的產(chǎn)品發(fā)展時(shí)期預(yù)知和解決問題而不是依靠“經(jīng)驗(yàn)方法”工程學(xué)。生產(chǎn)約束能夠在成型，調(diào)試，運(yùn)行的同時(shí)得到確立。</p><p>　　軟件能

31、夠使得使用者創(chuàng)造和仿真通過單一空洞，多室，多腔鑄型的塑性流動(dòng)。使用者可以優(yōu)化大門的類型，大小，位置，還有版面設(shè)計(jì)，尺寸和代表性的形狀。分析結(jié)果包括能幫助設(shè)計(jì)團(tuán)隊(duì)選擇夾緊力，注塑模及其壓盤大小和最小周期時(shí)間的周期，鉗位噸位和噴射尺寸。一個(gè)添加模塊允許使用者仿真注塑模過程的多元相和另一個(gè)估計(jì)冷卻回路的預(yù)先估計(jì)模型性能。</p><p><b>　　包裝和冷卻</b></p><

32、;p>　　一個(gè)模塊仿真注塑模過程的包裝階段用來預(yù)知和減小不令人歡迎的零件收縮，并且提供一個(gè)可以顯示零件的彎曲和變形是否超過可接受等級的指示器。</p><p>　　注塑模過程的第二階段的包裝擁有達(dá)到零件質(zhì)量，零件成本，周期時(shí)間準(zhǔn)確平衡的鑰匙。模具設(shè)計(jì)者可以建立和計(jì)算包裝外形來決定最佳的包裝壓力和包裝耐久度。</p><p>　　運(yùn)用包裝分析結(jié)果，模具設(shè)計(jì)者能夠分辨出高的，不統(tǒng)一的體積

33、收縮用來貢獻(xiàn)給熱變形和觀察冷卻時(shí)間的分配來辨別命令周期的區(qū)域。</p><p>　　熱變形指示器分析表示了零件的偏離形狀——一種有價(jià)值的工具用來肉眼觀察零件的收縮和熱變形。模具設(shè)計(jì)者也能夠測量偏離形狀以能夠更方便地觀察零件的變形。用這些工具來觀察零件的網(wǎng)狀形狀，模具設(shè)計(jì)者能夠計(jì)算出需要特別指定熱變形級別的零件的特定的區(qū)域。熱變形指示器的結(jié)果是一個(gè)交通燈（紅，黃，綠）圖，用來突出那些零件熱變形相對于用戶指定的參考面

34、超過用戶指定的可接受的熱變形級別的區(qū)域。</p><p>　　用這個(gè)工具，模具設(shè)計(jì)者們能夠計(jì)算出對零件或者模具設(shè)計(jì)或者材料或者過程條件的改變所帶來的零件熱變形是不是在可接受的范圍內(nèi)。冷卻模仿真注塑模過程的冷卻階段使得使用者能夠優(yōu)化模具設(shè)計(jì)以達(dá)到均勻冷卻并使周期最小化。</p><p>　　模具設(shè)計(jì)者可以綜合幾種選項(xiàng)來設(shè)計(jì)他們的冷卻回路，包括引入一個(gè)計(jì)算機(jī)輔助設(shè)計(jì)系統(tǒng)，使用自動(dòng)向?qū)В蛘呤褂?/p>

35、完整冷卻模的塑造工具。</p><p>　　冷卻回路可以合并圓形和半圓形通路，軟管，障礙和噴水式飲水口。在冷卻回路被安置好，對各個(gè)回路的冷卻路口被指定好之后，模具設(shè)計(jì)者們便可以開始冷卻分析了。指示器諸如壓力降、雷諾茲數(shù)、流動(dòng)率、冷卻液溫度能夠被用來鑒別低效率回路。</p><p>　　零件表面溫度對不均勻冷卻形式測定點(diǎn)位是很有用處的可以潛在地誘導(dǎo)零件上的熱變形。另外，這個(gè)軟件愛你提供了一個(gè)