模具外文翻譯---高速加工和現(xiàn)代模具制造

1、<p>　　畢業(yè)設(shè)計(論文)外文資料翻譯</p><p>　　注：請將該封面與附件裝訂成冊。附件1：外文資料翻譯譯文</p><p>　　高速加工和現(xiàn)代模具制造</p><p><b>　　一、概述</b></p><p>　　1 目前模具制造的發(fā)展現(xiàn)狀和趨勢</p><p>　　模具

2、作為重要的工藝裝備，在消費品、電器電子、汽車、飛機制造等工業(yè)部門中，占有舉足輕重的地位。工業(yè)產(chǎn)品零件粗加工的75%，精加工的50%及塑料零件的90%將由模具完成。目前中國模具市場需求已達500億元之規(guī)模。汽車模具、特別是覆蓋件模具年增長速度將超過20%；建材模具也迅速發(fā)展，各種異型材模具、墻面和地面模具成為模具的新增長點，今后幾年塑料門窗和塑料排水管增長將超過30%；家電模具年增長速度將超過10%；IT業(yè)年均增長速度超過20%，對模具的

3、需求占模具市場的20%。2004年中國機床工具工業(yè)產(chǎn)值將繼續(xù)增長。我國模具制造市場潛力巨大。根據(jù)資料統(tǒng)計，近年來，我國模具的年總產(chǎn)值達到30億美元，進口超過10億美元，出口超過1億美元。增長從1995年的25%增加到2005年的50%。國外專家預(yù)言：亞洲在全球模具制造中占據(jù)的份額，將從1995年的25%增加至2005年的50%。</p><p>　　中國模具工業(yè)發(fā)展迅速，形成了華東和華南兩人基地，并且逐漸擴大到其

4、他省份。（山東，安徽，四川) 1996年~2002年，模具制造業(yè)產(chǎn)值年平均增長14%, 2003年增長25%。2003年我國模具產(chǎn)值為450億人民幣總產(chǎn)量位居世界第3，出口模具3.368億美元，比上年增長33.5%。但是，我國技術(shù)含量低的模具已供過于求，精密、復(fù)雜的高檔模具很大部分依靠進口。每年進口模具超過10億美元。出口超過1億美元，精密模具精度要求在2~3u m，大型模具需要滿足8000kN合模力注塑機的要求；小型模具需滿足直徑1m

5、m 塑料管的要求。目前，采用高速切削生產(chǎn)模具已經(jīng)成為模具制造的大趨勢，在國外一些模具生產(chǎn)廠家，高速機床大面積取代電火花機床，高速切削大大提高了模具生產(chǎn)效率。機床企業(yè)瞄準模具生產(chǎn)企業(yè)，有的加工中心生產(chǎn)廠機床的60%以上賣給模具加工企業(yè)。高速切削逐漸取代電火花精加工模具在國外的模具制造企業(yè)已經(jīng)普遍釆用，高速切削生產(chǎn)模具已經(jīng)逐漸成為模具制造的大趨勢，大大提高了模具生產(chǎn)效率和質(zhì)量。釆用高速切削替代電火花生產(chǎn)模具，可以明顯提高效率、提高模具精度、

6、使用籌命長。</p><p>　　2 高速加工在模具制造中的應(yīng)用</p><p>　　2.1 高速切削的優(yōu)點：</p><p>　　1）刀具的高轉(zhuǎn)速和機床的高進給以及高速度，大大提高金屬切除率；</p><p>　　2）高速切削減小切削力；</p><p>　　3）高速切削熱大部分由切屑帶走，工件發(fā)熱少；</

7、p><p>　　4）高速切削減少振動，提高加工質(zhì)量；</p><p>　　2.2 高速加工應(yīng)用于模具加工的效益</p><p>　　1）快速粗加工和半精加工，提高加工效率；</p><p>　　2）高速高精度精加工硬切削代替光整加工，表明質(zhì)量高，形狀精度提高，比EDM加工提高效率50%, 減少手工修磨；</p><p>

8、　　3）硬切削加工最后成型表面，提高表面質(zhì)量、形狀精度，（不僅是表面粗糙度低，而且表面光亮度高)， 用于復(fù)雜表面的加工更具優(yōu)勢；</p><p>　　4）避免EDM加工產(chǎn)生的表面損傷，提高模具壽命20%；</p><p>　　3 釆用高速切削加工模具需要解決的問題</p><p>　　在國內(nèi)，由于資金、技術(shù)等方面的原因，應(yīng)用高速切削生產(chǎn)模具還處于初期階段。還存在機

9、床、刀具、工藝以及其他方面的一些問題需要逐步解決。缺點是加工成本高，對刀具的使用有較高的要求，不能使用過大的刀具，要有復(fù)雜的計算機編程技術(shù)做支持，設(shè)備運行成本高。</p><p>　　二、加工模具的高速加工機床</p><p>　　模具精加工和硬切削加工需要數(shù)控高速機床，模板、模架加工需要精密、高效數(shù)控機床等。許多機床企業(yè)瞄準模具生產(chǎn)，有的加工中心生產(chǎn)廠機床的60%以上賣給模具企業(yè)。模具行

10、業(yè)今后幾年年均有50億元的固定資產(chǎn)投入，其中80%是購買模具加工設(shè)備，也就是說每年有40億元人民幣要購買金切機床。目前我國數(shù)控機床的平均利用率大約20%，高速機床的利用率3~5%。模具企業(yè)也有較多的單位購買高速機床，機床轉(zhuǎn)速從6000~40000rmp的都有。</p><p>　　1 高速機床的技術(shù)參數(shù)要求</p><p>　　加工中心主軸大功率、高轉(zhuǎn)速，滿足粗精加工；精加工模具要用小直

11、徑刀具，機床一般要達到15000~20000rmpa，通常主軸轉(zhuǎn)速在lOOOOrpm以下的機床可以進行粗加工和半精加工，達不到精加工的精度；無法達到400m/min以上的切削速度。</p><p>　　2 五軸機床的應(yīng)用增加趨勢</p><p>　　1）加工路線靈活，表面形狀復(fù)雜；</p><p>　　2）加工范圍大，適合多種類型模具加工；</p>

12、<p>　　3）切削條件好，減少刀具磨損，提高刀具壽命；</p><p>　　3 購買CAD/CAM軟件和高速機床配套</p><p>　　據(jù)統(tǒng)計，每年有幾十億美元用于進口機床，大部分電加工機床和高速機床需要進口。</p><p>　　三、高速切削模具的刀具技術(shù)</p><p>　　高速切削加工還需配備適宜高速切削的刀具。高速加工

13、刀具材料的進展促使了高速加工的發(fā)展。硬質(zhì)合金涂層刀具、聚晶增強陶瓷刀具使得兼顧高硬度的刀刃部分和高韌性的基體成為可能。聚晶立方氮化硼 (PCBN)刀片，其硬度可達3500~4500HV。聚晶金剛石(PCD)其硬度可達6000~10000HV。近年來德國SCS、 日本三菱(神鋼)及住友、瑞士山特維克、美國肯納飛碩等國外著名刀具公司都先后推出了各自的高速切削刀具，不僅有高速切削普通結(jié)構(gòu)鋼的刀具，還有能直接高速切削淬硬鋼的陶瓷刀具等超硬刀具，

14、尤其是涂層刀具異軍突起，在淬硬鋼的半精加工和精加工中發(fā)揮著巨大作用。新刀具材料和刀具技術(shù)的出現(xiàn)已經(jīng)使高速加工上的瓶頸問題不再會出現(xiàn)在刀具上。</p><p>　　但是，進口刀具的昂貴價格也阻礙高速切削模具的重要因素。</p><p>　　一般來說,刀具以及刀架振動的加速度達到3g以上，刀具的徑向跳動要小于0.015mm，而刀的長度不能大于 4倍的刀具直徑。根據(jù)SANDVIK公司的實際統(tǒng)計，

15、在使用碳氮化鈦(TICN)涂層的整體硬質(zhì)合金立銑刀 (58HRC)進行高速銑削時，粗加工刀具線速度約為100m/min，而精加工和超精加工時，其線速度超過了 280m/min.這樣對刀具的材料(包括硬度、韌性、紅硬性)、刀具的形狀(包拈排屑性能、表面精度、動平衡性等)以及刀具壽命都有很高的要求。根據(jù)國內(nèi)模具高速精加工的經(jīng)驗，釆用小直徑球頭銑刀進行模具精加工時，線速度超過了 400~800m/min。選擇足夠高速度的機床硬切削模具精加工。

16、 Delcam采用0.8mm直徑的刀具加工窄槽，轉(zhuǎn)速40000rpm, 0.1mm深度，進給速度30m/min。</p><p>　　1.選擇刀具參數(shù)，如負前角刀具等。刀具要求比普通加工要求抗沖擊韌性更高，還要求抗熱沖擊能力強；</p><p>　　2.釆取多種方法提高刀具壽命，降低刀具成本。</p><p>　　3.釆用高速刀柄，目前應(yīng)用最多的是HSK刀柄，熱壓裝

17、夾刀具。注意刀具裝夾后的整體動平衡；</p><p>　　4．當(dāng)前的刀具企業(yè)在解決高速切削刀具技術(shù)方面已經(jīng)做了很多工作，面向加工的刀具服務(wù)會幫助解決很多問題，刀具生產(chǎn)廠家成為主體，參考刀具生產(chǎn)廠家提供的技術(shù)參數(shù)。</p><p>　　四、提高高速切削模具效率的工藝技術(shù)</p><p>　　1）刀具直徑和長度的選擇</p><p>　　2）HS

18、M和EDM的選擇</p><p>　　3）干切削和潤滑冷卻</p><p>　　4）進給選擇：通常進給量< 銑刀直徑10%，進給寬度< 銑刀直徑40%。</p><p>　　根據(jù)材料情況合理選擇加工工藝參數(shù)</p><p>　　國外高速銑削加工零件材料質(zhì)量較好，材料質(zhì)量標(biāo)準相同，加工性能比較穩(wěn)定；而國外公司生產(chǎn)的刀具也是以他們的材

19、料標(biāo)準做試驗；推薦的加工參數(shù)一般比較適合他們的標(biāo)準，如果使用他們的刀具，與國內(nèi)的零件材質(zhì)有一定的區(qū)別，在高速銑削時,這種差別表現(xiàn)得較為明顯，有些參數(shù)可以直接使用，但有些效果就比較差。而國內(nèi)企業(yè)一般選用零件材質(zhì)有一定的標(biāo)準，所使用的零件材料，特別是能用高速加工的零件材質(zhì)，一般會局限在某些零件材料范圍內(nèi)，這對我們應(yīng)用高速加工技術(shù)也提供了有利的條件，會在較少的加工材料范圍內(nèi)應(yīng)用。這里要強調(diào)的是，一定要在這些材料上選取優(yōu)化出一套適合本企業(yè)的加工

20、工藝參數(shù)，并且納 入企業(yè)標(biāo)準。選用國產(chǎn)刀具，很少有推薦高速銑削的技術(shù)參數(shù)的，有必要做試驗，取得比較滿意的參數(shù)，最好選用同一的刀具生產(chǎn)廠家，減少試驗的次數(shù)，形成加工技術(shù)標(biāo)準，這樣可以提高設(shè)備有效利用率，降低生產(chǎn)成本，可以取得較好的經(jīng)濟效益。</p><p>　　五、高速切削加工刀具路徑和編程</p><p>　　1）平面進給路徑選擇</p><p>　　2）輪廓加工路

21、徑選擇</p><p>　　3）保持切削載荷平穩(wěn)</p><p>　　4）保持相對平穩(wěn)的進給量和進給速度</p><p>　　5）在平面切削中保持圓拐角</p><p>　　6）合理選擇精加工余量</p><p>　　HSC精加工對CAM的編程要求：1)盡量避免拐角的銑削運動；2)盡量避免工件外的進刀與退刀運動，直接從

22、輪廓進入下一個深度?；蛘卟捎寐菪€或斜向進給切入；</p><p>　　3) 恒定每刃進給，提高質(zhì)量，延長刀具壽命；4)輪廓加工保持在水平面上等。高速切削CAM軟件： Delcam公司幾年前就幵始了高速切削加工編程技術(shù)的研究，開發(fā)了高速切削自動編程軟件模塊；最近，MasterCAM公司也開發(fā)了高速切削自動編程軟件模塊；國內(nèi)北航海爾也在開發(fā)高速切削自動編程軟件模塊；</p><p>　　六、

23、高速機床數(shù)控系統(tǒng)的特點</p><p><b>　　1）高速數(shù)據(jù)處理</b></p><p><b>　　2）拐角預(yù)測處理</b></p><p>　　3）NURBS非有理樣條插補曲線加工</p><p>　　七、高速切削模具的安全問題</p><p>　　1）刀具磨損和破壞

24、的監(jiān)測；</p><p>　　2）刀片連接的強度；</p><p>　　3）和普通機床加工不同，安全防護和開機前對機床和刀具的嚴格檢查非常重要。</p><p>　　八、目前我國在采用高速加工模具技術(shù)中存在的問題</p><p><b>　　1.機床</b></p><p>　　1）國產(chǎn)高速機床整

25、體性能尚有差距，功能部件性能還不能滿足要求。包括電機主軸的功率和轉(zhuǎn)速，進口機床價格高；</p><p>　　2）機床的高速下動態(tài)特性研究還不夠，因而影響整機的性能；</p><p>　　3）五軸機床還不夠成熟，進口機床價格太高；</p><p>　　4）配套技術(shù)和設(shè)備還不完全。</p><p><b>　　2刀具</b>

26、</p><p>　　1）國產(chǎn)刀具還不能夠適應(yīng)高速切削的應(yīng)用，特別是高速硬切削光整加工。進口刀具價格高。刀具技術(shù)是影響高速切削加工模具的一個重要因素。</p><p>　　2）配套技術(shù)還不夠，包括刀柄、成套在線動平衡等。</p><p>　　3.高速模具加工工藝技術(shù)及實驗</p><p>　　1）由于高速加工模具的歷史比較短，缺乏應(yīng)用經(jīng)驗積累

27、；</p><p>　　2）對高速切削工藝研究比較少，投入不夠，立項比較困難；</p><p>　　3）缺少高速切削數(shù)據(jù)庫或手冊，目前還是空白；</p><p>　　4）模具生產(chǎn)廠家對高速切削的認識不夠，缺乏長期效益的分析對比；</p><p>　　4.缺乏高速切削自動編程軟件</p><p>　　5.缺乏五軸聯(lián)動高速

28、切削自動編程CAM軟件。</p><p><b>　　結(jié)束語</b></p><p>　　模具市場對高速加工有強烈要求，但是技術(shù)跟不上。起步晚，基礎(chǔ)較差，整體技術(shù)水平不高，發(fā)展緩慢。需要各個方面協(xié)調(diào)發(fā)展，產(chǎn)學(xué)研結(jié)合，加大投入，綜合利用各個方面力量推動高速切削在模具制造中的應(yīng)用。我們希望，通過各方面的努力，在市場需求的推動下，通過技術(shù)進步，像汽車、機床、家電一樣, 在不

29、遠的將來，我國不但要成為模具生產(chǎn)大國，而且要成為模具生產(chǎn)強國。</p><p>　　附件2：外文原文（復(fù)印件）</p><p>　　Treating and the modern mould make high speed</p><p>　　One, summarizes</p><p>　　the present situation th

30、at the mould makes at present and trend</p><p>　　The mould is important handicraft equipment，occupies decisive position in industrid departments such as consumer goods，electrical equipment electron，automobil

31、e , aircraft fabrication. The mould is important handicraft equipment , occupies decisive position in industrid departments such as consumer goods，electrical equipment electron，automobile , aircraft fabrication. Industri

32、al product part rough process 75%, the finish machining 50% and plastic part 90% will be completed from the mould. The Chi</p><p>　　will continue to increase. Our country mould fabrication market potential i

33、s enormous. The basis data counts， in recent years，our country mould year gross output value reaches 3 billion U. S. dollar，entrance exceeds 1 billion U. S. dollar，exceed 100 million U. S. dollar outlet. Increase by from

34、 25% to increase to 2005 50% of 1995. The expert foretells that abroad: Asia portion being occupied by in mould fabrication in the whole world, will from 25% to increase to 2005 50% of 1995.</p><p>　　Chinese

35、 mould industry has been expanding by leaps and bounds，has formed east China and two big South China bases, and has expanded gradually arriving at other province. In 2002 (Shandong，Anhui，Sichuan) in 1996，mould manufactur

36、ing industry output value annual average growth 14% , grows by 25% in 2003. In 2003 our country mould output value is 45 billion RMB. The gross product place occupies the world the 3rd，exports a mould increases 33.5% com

37、pared to last year 336,800,000 U. S. dollar. But, con</p><p>　　Precise mould accuracy requires that 3 mu ms，large-scale moulds require that 8000 satisfied kN agree well with model force injection machine req

38、uest in 2 ~；The minitype mould needs the request satisfying the diameter 1 mm silent stock tube. At present, adopt quick-cutting to produce a mould already becoming the general trend that the mould makes, a few moulds ha

39、ve produced a manufacturer in abroad，high-speed machine tool large area has substituted the electric spark machine tool，quick-cutting ha</p><p>　　high speed processes application in making in the mould</p

40、><p>　　quick-cutting merit:</p><p>　　1) cutter high rotation rate and the machine tool height enter be given to and high acceleration，improve metal excision rate greatly;</p><p>　　2) q

41、uick-cutting diminutions cut a force;</p><p>　　3)quick-cutting heat major part generate heat from the cuttings entrainment，workpiece being short;</p><p>　　4)quick-cutting cut down vibration，impr

42、ove treating mass;</p><p>　　high speed treating apply to the beneficial result that the mould processes</p><p>　　1) fleetness rough process and half finish machining, improve treating efficiency

43、;</p><p>　　2) High speed high-accuracy finish machining replace only entire the height processing，indicating mass，form accuracy rise，50%, cuts down repair a mill by hand than EDM processes a potentiation;<

44、;/p><p>　　4) cuts the surface processing final molding stiffly，improve surface mass , form accuracy, the treating (not only being that surface harshness is low, and the surface radiance is high)，being used for

45、complicated surface has more advantage;</p><p>　　5) the surface loss that EDM treating produces，improve mould life-span 20%;</p><p>　　processes an electrode rapidly combining with the CAD/CAM te

46、chnology , especially, the form is complicated , thin-wall is similar to an electrode.</p><p>　　3 adopt quick-cutting to process a mould needing the problem solving</p><p>　　In in the homeland,

47、since the aspect cause such as fund，technology，the quick-cutting applying produce a mould be in the initial stage stage. Return the machine tool，cutter，handicraft back to existence as well as some problem of aspect needs

48、 to proceed orderly other solve.</p><p>　　The shortcoming is that finished cost is high, correct cutter sigmatism have comparatively high demand, can not have used big cutters，need to have the complicated co

49、mputer programming technology to be used for support, equipment running cost height.</p><p>　　Two, the high speed processing a mould's processes a machine tool</p><p>　　Mould finish machinin

50、g and hard cutting treating require that the numerical control high-speed machine tool， form board，model put up the precision processing need，high-effect numerical control machine tool etc.The mould aiming at produces a

51、lot of machine tool enterprise，some treating centres 60% all above of the machine tool producing a factory sells enterprise to a mould.</p><p>　　The fixed assets having 5 billion yuan without exception in th

52、e upcoming several years throws into mould industry，80% is the machine tool buying a mould process equipment，just saying every year having 4 billion yuan of RMB to buy Jinqie among them.</p><p>　　At present

53、average our country numerical control machine tool utilization ratio approximately 20%, the high-speed machine tool utilization ratio 3~5%. Also, mould enterprise has the unit suitable to buy a high-speed machine tool，co

54、mplies with 6000 ~40000 rmp's to have.</p><p>　　high-speed machine tool technology parameter demands</p><p>　　Process centre chief axis high-power , high rotation rate，satisfied rude finish

55、machining; The finish machining mould wants to need to reach 15000 ~20000 rmp like the cutter，the machine tool with minor diameter. Generally, the chief axis rotation rate machine tool under 10000 rpm can carry out rough

56、 process and half finish machining，cannot reach the finish machining accuracy;</p><p>　　Have no way to reach 400 the above m/min cutting speed.</p><p>　　five scrolls of machine tools application

57、 increases a trend</p><p>　　1) treating route is nimble，the surface form is complicated;</p><p>　　2) treating range is big , the various type mould suitable processes;</p><p>　　3) c

58、uts life-span of condition easy to cut down cutter wear，to raise a cutter,;</p><p>　　the softwares buying CAD/CAM and high-speed machine tools assort</p><p>　　On the grounds of the machine tool，

59、major part counting，having several billions U. S. dollar to be used to enter port every year, the electromachining machine tool and the high-speed machine tool need to import.</p><p>　　Three,quick-cutting mo

60、uld cutter technology</p><p>　　Quick-cutting processes the cutter needing allocating proper quick-cutting. Progressing processing cutter material's in high speed has urged development of high speed treat

61、ing. The cutter，knife edge headquarter and high tenacity base gathering crystal strengthening the ceramics cutter being able to be used giving consideration to high hardness experience and observe carbide alloy coating b

62、ecoming possibility. Gather the crystal cube nitriding boron (PCBN) bit, whose hardness may amount to 3500 ~</p><p>　　Switzerland Shanteweike，USA Kenna are in recent years swiftly large wait for the famous a

63、broad cutter company to successively have debuted the respective quick-cutting cutter, not only cutter having average structural steel of quick-cutting, the ceramics cutter still having direct quick-cutting of energy que

64、nching hard steel is waiting for an effect to surpass the hard cutter，especially the coating cutter appears all of a sudden，bringing into play in quenching half finish machining and finish ma</p><p>　　But，ex

65、pensive entrance cutter price also blocks quick-cutting mould key factor.</p><p>　　Above to come to saying the cutter and the cutter holder acceleration reach 3 gs the sort, the cutter circular runout needs

66、to be smaller than 0.015 mm，but the knife length is unable greater than 4 times cutters diameter. The reality according to SANDVIK company has counted，the carbide alloy has stood on in the entirety using carbon nitriding

67、 titanium (TICN) coating when milling cutters (58 HRC) carry out high speed bright metal chopping， rough process cutter linear speed has been 100 m/m in abo</p><p>　　Experience according to in the homeland m

68、ould high speed finish machining, linear speed has exceeded 400~800 m/min when adopt the young diameter ball head milling cutter to carry out mould finish machining. The machine tool choosing sufficient high-speed's

69、cuts mould finish machining stiffly.</p><p>　　Delcam adopt 0.8 mm diameter cutter to process the narrow slot，rotation rate 40000 rpm , 0.1 mm depth，feed speed 30 m/min.</p><p>　　1 chooses the cu

70、tter parameter，the cutter waits if shouldering an anterior angle. The cutter requires that the ability processing request shock resistance tenacity more highly，requiring that heat resistance pounds than average is strong

71、;</p><p>　　2 adopts various method improving cutter life-span，reduces cutter cost.</p><p>　　3 adopt the high speed hilt，HSK hilt，heat pressing applying the most being at present to pretend to gr

72、ip a cutter. Pay attention to a cutter pretend to grip overall in the day afer tomorrow dynamic balance;</p><p>　　4 current cutter enterprise has already done many jobs in the field of the technology resolvi

73、ng the quick-cutting cutter，serving facing the cutter processing may help to solve much problem，the cutter has produced a manufacturer becoming the main body，the reference cutter has produced the technology parameter tha

74、t the manufacturer provides.</p><p>　　Four, improve quick-cutting mould efficiency technology</p><p>　　1 cutter diameter and the length choice</p><p>　　2 HSM and the EDM choice</

75、p><p>　　3 does cutting and the lubricating cooling</p><p>　　4 feeds choice: Move forward generally giving amounts〈milling cutter diameters 10%，move forward giving a width〈milling cutter diameter 40

76、%. According to material, condition chooses the parameter processing handicraft rationally</p><p>　　High speed bright metal cuts the mass processing part material abroad fairly good, material quality level i

77、s</p><p>　　identical , the treating function comparison is stable; But, the cutter that the company produces abroad is also that the standard makes an experiment with their material; The treating being recom

78、mended by is suitable to their standard comparatively like the parameter，material quality has the certain difference with domestic part，this difference shows comparatively obviously，some parameters can apply directly，but

79、 some effect dispatches right away comparatively during the period of high speed bri</p><p>　　The technology selecting and using the domestic cutter，seldom having the bright metal recommending high speed to

80、chop parametric，is necessary making an experiment, get the comparatively satisfied parameter，produce a manufacturer had better to select and use the fixed cutter，cut down the number of times testing that，the standard for

81、ming a processing technology, such can improve effective utilization ratio of equipment，lowers production costs，can get the fairly good economic effect.</p><p>　　Five，quick-cutting route processing a cutter

82、and programming</p><p>　　1) flat surface feeds the route choice</p><p>　　2) outlines process the route choice</p><p>　　3) Keep cutting loading stable</p><p>　　4) keeps

83、relatively stable moving forward giving amounts and feed speed</p><p>　　5) keeps the garden comer in flat surface cutting</p><p>　　6) chooses the finish machining margin rationally</p>&l

84、t;p>　　Programming demand of HSC finish machining to CAM:</p><p>　　1) the bright metal avoiding a corner to the full cuts motion;</p><p>　　2) tries one's best to avoid external feed of wor

85、kpiece and enter next depth return knife motion，direct from the outline. Or adopt a helical line or being sure enter slanting to moving forward;</p><p>　　3) constant each edge feed，improve the quality, prolo

86、ngs cutter life-span;</p><p>　　4) outline treating are kept waiting in level surface.</p><p>　　Quick-cutting CAM software:</p><p>　　Several years ago will have started quick-cutting

87、 processing programming technology research, the Delcam company , has developed the quick-cutting automation programming software module; Lately, the MasterCAM company has also developed the quick-cutting automation prog

88、ramming software module; You also are in in the homeland north navigation developing the quick-cutting automation programming software module;</p><p>　　Six, high-speed machine tool numerical control system c

89、haracteristic</p><p>　　1) high speed data is processed</p><p>　　2) corner forecasts are handled</p><p>　　3) NURBS are not justified appearance strip runin curve treating</p>

90、<p>　　Seven, safe quick-cutting mould problem</p><p>　　1) Monitoring wearing a cutter away and destroying;</p><p>　　2) Intensity that the bit links;</p><p>　　3) Strict with the

91、 machine tool and the cutter examination is very important and before the average machine tool processing diversity，safety protects and starts up.</p><p>　　Eight, there exists problem in our country at prese

92、nt in adopt high speed to process the mould technology</p><p>　　machine tool:</p><p>　　1) domestic high-speed machine tool overall function still has the gap，the function component function to b

93、e able to not satisfy a request. Power and rotation rate including the electricity chief axis, entrance machine tool price is high;</p><p>　　3) Under the machine tool high speed，the dynamic behaviour studies

94、 the function being not enough to affect a complete machine as a result,;</p><p>　　The five scroll of machine tool is not enough mature，entrance machine tool price is very high;</p><p>　　4) supp

95、orting technology and equipment are fairly incomplete</p><p><b>　　cutters:</b></p><p>　　1) domestic cutter is not able to adapt to the quick-cutting application , high speed cuts onl

96、y entire treating especially stiffly. Entrance cutter price is high. The cutter technology is to affect quick-cutting processing a key factor of mould.</p><p>　　2) supporting technologies are not enough to i

97、nclude hilt，online dynamic balance in complete set etc..</p><p>　　high speed moulds process the technology and the experiment</p><p>　　1) Be short of the accumulation applying experience since h

98、igh speed processes the mould history comparatively shortly;</p><p>　　2) The comparison studying comparison stops throwing into lack, sets up a project to quick-cutting handicraft is difficult;</p>&l

99、t;p>　　3) Be short of the quick-cutting data base or the handbook，is still blank space at present;</p><p>　　4) moulds produce the manufacturer cognition lack to quick-cutting，the analysis contrast being sh

100、ort of long range beneficial result;</p><p>　　Be short of the quick-cutting automation programming software;</p><p>　　Be short of a five scroll of gear quick-cutting automation programming CAM s

101、oftware.</p><p>　　Concluding remark</p><p>　　The mould marketplace has the intense need, but technology to be unable to keep abreast with to high speed treating. Starting is late，the basis is re

102、latively poor，overall engineering level not being taller than，develops slowlyRequire that one by one, aspect coordinated growth，the product mimic inkstone throwing into combining with enlarging, each comprehensive utiliz