外文翻譯--注塑?？焖僭椭圃?

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中被大學分校畢業(yè)設(shè)計 - 1 - 外文原稿： in he is a to 0's 0 to 0's, of to In of is by an It is to to to of a of is a a of to on in is to to is 0 to to in of 北大學分校畢業(yè)設(shè)計 第 - 2 - 頁 共 16 頁 of of In 0% of to 70%is to to an of to go by to in in in P& M 一 ． in of it of to a is to of to of in to a 中北大學分校畢業(yè)設(shè)計 第 - 3 - 頁 共 16 頁 of in of of as to in in in or is to to ～ 1/10, is ～ 1/5. to in RP in of to be to of of to P is an of to of of is a LS of in 北大學分校畢業(yè)設(shè)計 第 - 4 - 頁 共 16 頁 he of of is to of of of to 000 ～ 5000 of is a to of is to is a is a of be to on a in of is of of of is by is to as to it's 北大學分校畢業(yè)設(shè)計 第 - 5 - 頁 共 16 頁 on an 二 , in of ． he of is to of is or of OM in to up to of is of to of is in in as 000 P of of to up to in in in of as to be by a 中北大學分校畢業(yè)設(shè)計 第 - 6 - 頁 共 16 頁 at is is is , is to be of 2． he of to is (1) he be by . as to it's a is to up in (2) ry in in to to on to to to s. (3) f in or 北大學分校畢業(yè)設(shè)計 第 - 7 - 頁 共 16 頁 at on of (4) of to to of is (5) in he to to in of of to to (6) to ． to he be by be 380V 12中北大學分校畢業(yè)設(shè)計 第 - 8 - 頁 共 16 頁 300A .6 s .8 s of to as to so of to 三． in in in he of to be in of a to if 北大學分校畢業(yè)設(shè)計 第 - 9 - 頁 共 16 頁 is by in to in of to be in in on in in of of of In of in , to It is to in a . of 1. f of is 000 ～ s 5000 in an to 100 in is or is an or of to 北大學分校畢業(yè)設(shè)計 第 - 10 - 頁 共 16 頁 to to in to up to 2. in a of a in a is to a P of in in in 000 a P& to to a a to on a P, as 3． 北大學分校畢業(yè)設(shè)計 第 - 11 - 頁 共 16 頁 SP of a in in or of to to or of a to to to a to to to to in s to to in to a in in 北大學分校畢業(yè)設(shè)計 第 - 12 - 頁 共 16 頁 in a of At in , of to in to of of be to of a , is ～ 1/5, in on a in 譯文： 注塑?？焖僭椭圃? 傳統(tǒng)制造業(yè)的戰(zhàn)略是規(guī)模效益第一，二十世紀八十年代提出價格和質(zhì)量第一，九十年代以來，已發(fā)展為市場響應(yīng)第一。在制造業(yè)日趨國際化的狀況下，縮短產(chǎn)品開中北大學分校畢業(yè)設(shè)計 第 - 13 - 頁 共 16 頁 發(fā)周期和減少開發(fā)新產(chǎn)品投資風險，成為企業(yè)賴以生存的關(guān)鍵。 近年來，制造業(yè)市場的制造戰(zhàn)略重點正在發(fā)生從成本與質(zhì)量到時間與響應(yīng)的重大轉(zhuǎn)移?？焖賹⒍鄻踊漠a(chǎn)品推向市場是制造商把握市場先機而求生存的重要保障，快速響應(yīng)制造已成為國際研究的熱點，應(yīng)運而生的快速成形 /快速制模 /快速制造技術(shù)為企業(yè)提高競爭力提供了一種先進的手段。該技術(shù)是基于材料累加成形的一種高新制造技術(shù) ,被認為是 20 世紀制造領(lǐng)域的一次革命性突破，可制造注塑模、壓鑄模、沖壓模等各類精密復雜模具，目前已廣范應(yīng)用于汽車、航空航天、船舶、家電、工業(yè)設(shè)計、醫(yī)療、建筑、工藝品制作以及兒童玩具等領(lǐng)域，并且隨著這一技術(shù)本身的不斷 發(fā)展和完善，其應(yīng)用范圍將不斷拓廣。 在汽車、家電制造業(yè)中，模具成形零件占到了制造工時的 50%～ 70%。模具制造是制約我國汽車、家電、輕工等行業(yè)發(fā)展的瓶頸和關(guān)鍵，隨著快速成型軟硬件設(shè)備與快速成型材料的不斷發(fā)展和完善，快速原型件的強度和精度得到不斷的提高，快速成型技術(shù)已經(jīng)逐漸地深入到快速模具制造領(lǐng)域，基于快速成型方法制造各類簡易經(jīng)濟快速模具已成為 應(yīng)用的熱點問題。 一、模具快速制造 雖然快速成形技術(shù)問世時間不長 ,但由于它對制造業(yè)帶來的巨大效益使得這一技術(shù)的應(yīng)用日益廣泛，特別是給模具的設(shè)計 與制造帶來了一次飛躍?？焖僭图夹g(shù)可精確制作模具的型心和型腔，也可直接用于注射過程制作塑料樣件，以便發(fā)現(xiàn)和糾正出現(xiàn)的錯誤。由于快速原型制造這一新技術(shù)的應(yīng)用 ,使模具的設(shè)計與制造逐步趨向于數(shù)字化、快速化，使模具制造在縮短周期，降低成本的進程中，大大前進了一步。 快速制模技術(shù)大都是依據(jù)快速成型制作的實體模型即樣模 (母模 )采用拷貝方式(如金屬噴涂、電鍍、復合材料澆注、精鑄等 )來快速制造模具主要工作零件 (凸、凹?；蚰Ｇ弧⒛Ｐ?)的，其制造周期一般為傳統(tǒng)的數(shù)控切削方法的 1/5～ 1/10，而成本卻僅為其 1/3～ 1/5。 根據(jù)模具材料、生產(chǎn)成本、 型的材料、生產(chǎn)批量、模具的精度要求已開發(fā)出多種多樣的工藝方法。目前的快速制模方法大致有間接制模法和直接制模法，基于速制造模具