【正文】 rapid economic mold manufacturing technology. (6)The application of advanced manufacturing technology. For example, hot runner technology, gasassisted technology, virtual technology, nanotechnology, highspeed scanning technology, reverse engineering, concurrent engineering and other technology in the mold the research, development, processing of the application process. (7) Of raw materials in the mold forming simulation technology. (8) Advanced mold processing equipment and knowhow in research and development. (9) Die and Mold standard parts, it is important to the standardization of technology accessories. (10) Mold detection technology and its products. (11) Highquality, research and development of new mold materials and their proper application. (12) The modernization of production tooling management techniques.Mold industry in the Eleventh FiveYear period needs to be resolved should be the focus of the key technology of mold information, digital technology and precision, ultrafine, highspeed, efficient manufacturing technology breakthroughs. With the total of the national economy and industrial products of the continuous development of technology, all walks of life to mold growing demand, the technical requirements of increasingly high. Although a wide range of mold, but the focus should be on their development can meet a large number of needs, and higher technological content, particularly the current can not be selfsufficient, need to import large quantities of mold and can represent the direction of development of largescale, precision, plex, long die life. Mold standard parts o。與快速成型技術(shù)相結(jié)合的一些快速制模技術(shù)及相應(yīng)的快速經(jīng)濟(jì)模具具有很好的發(fā)展前景。根據(jù)上述需要量大、技術(shù)含量高、代表發(fā)展方向、出口前景好的原則選擇重點(diǎn)發(fā)展產(chǎn)品，而且所選產(chǎn)品必須目前已有一定技術(shù)基礎(chǔ)，屬于有條件、有可能發(fā)展起來(lái)的產(chǎn)品。例如超精沖壓模具制造技術(shù)、精密塑料和壓鑄模具制造技術(shù)等。目前國(guó)內(nèi)每年生產(chǎn)的模具，商品模具只占40%左右，其余為自產(chǎn)自用。 （2）企業(yè)組織結(jié)構(gòu)、產(chǎn)品結(jié)構(gòu)、技術(shù)結(jié)構(gòu)和進(jìn)出口結(jié)構(gòu)均不合理 我國(guó)模具生產(chǎn)廠中多數(shù)是自產(chǎn)自配的工模具車間（分廠），自產(chǎn)自配比例高達(dá)60%左右，而國(guó)外模具超過(guò)70%屬商品模具。特別要感謝我的指導(dǎo)老師晁彩霞老師以及魏永樂(lè)老師從各個(gè)方面所給予我的幫助和支持，從課題選擇、工藝方案到具體零部件設(shè)計(jì)和裝配圖的繪制，無(wú)不凝聚著晁彩霞的心血和汗水，而這些都與他們嚴(yán)謹(jǐn)?shù)闹螌W(xué)態(tài)度、廣博的知識(shí)和豐富的實(shí)際經(jīng)驗(yàn)是分不開(kāi)的，在四年的本科學(xué)習(xí)和生活期間，也始終感受著老師的精心指導(dǎo)和無(wú)私的關(guān)懷，受益匪淺。9 結(jié)論在此次畢業(yè)設(shè)計(jì)當(dāng)中，首先，通過(guò)查閱資料對(duì)級(jí)進(jìn)模具的總體結(jié)構(gòu)做了大概的了解。 D． 大批量生產(chǎn)或開(kāi)頭復(fù)雜零件的大量生產(chǎn)中，選用高速壓力機(jī)械多工位自動(dòng)壓力機(jī)。否則，會(huì)使沖模和壓力機(jī)滑塊產(chǎn)生偏心載荷，使滑塊和導(dǎo)軌間產(chǎn)生過(guò)大的磨損，模具導(dǎo)向零件加速磨損，降低模具和壓力機(jī)的使用壽命。沖模刃口尺寸及公差計(jì)算的演算過(guò)程不再鰲述，僅把計(jì)算結(jié)果列于表34中。1）對(duì)斷面質(zhì)量的影響 2）間隙對(duì)尺寸精度的影響 3）間隙對(duì)沖裁力的影響 4）間隙對(duì)模具壽命的影響 5）合理間隙值的確定： 確定合理間隙的方法：計(jì)算法、經(jīng)驗(yàn)法、查表法.凸模與凹模的刃口尺寸和公差，直接影響沖裁件的尺寸精度。沖裁力是凸模與凹模相對(duì)運(yùn)動(dòng)使工件與板料分離所需的力，它與材料厚度、工件周邊長(zhǎng)度、材料的力學(xué)性能等相關(guān)參數(shù)有關(guān)。(3)沖孔—翻孔—落料連續(xù)沖壓，采用級(jí)進(jìn)模生產(chǎn)。 成型工序：坯料在不破壞的條件下發(fā)生塑性變形，獲得所需要形狀、尺寸和精度的加工方法。加工范圍廣 沖壓可加工出尺寸范圍較大，形狀較復(fù)雜的零件。 (2)復(fù)合模是一種多工序模，在模具的同一個(gè)工位上完成數(shù)道工序。 08F[3]編輯本段熱處理工藝　　推薦熱處理/℃ ：正火930正火推薦保溫保溫時(shí)間≤30min，空冷；淬火推薦保溫時(shí)間≤30min，其余鋼水冷；回火推薦保溫時(shí)間≤1h。根據(jù)零件形狀和尺寸，工件間n=,側(cè)邊取搭邊值mm。所以確定合理的間隙有著很大的意義。這種加工方法不僅容易保證凸凹模間隙很小，還可以放大基準(zhǔn)件的制造公差，使制造容易故目前一般工廠都采用這種加工方法。4翻孔工藝分析圖41翻孔Fig 41 Hole flanging （41）式中： D——翻孔后孔的中徑d ——翻孔前預(yù)沖孔直徑B ——翻孔時(shí)凸緣的寬度H ——翻孔后零件高度h ——翻孔后的直邊高度r ——圓角半徑t ——材料厚度滿足條件 翻孔高度 凸緣寬度 BHB= D= H= r=1mm t= 代入公式d=5壓力中心的計(jì)算如圖51所示，由于零件上下對(duì)稱故沖孔壓力中心在AB的連線上A為沖孔壓力中心即幾何中心，B為用沖孔壓力中心即圓心，設(shè)沖孔壓力中心C距A點(diǎn)的距離為Xmm。其選擇原則可按下述方法進(jìn)行。使用連續(xù)模沖壓可以減少設(shè)備、模具數(shù)量和車間面積，省去了半成品的運(yùn)轉(zhuǎn)和存儲(chǔ)。通過(guò)這次畢業(yè)設(shè)計(jì)，我不但對(duì)大學(xué)四年中所學(xué)過(guò)的知識(shí)，加以比較系統(tǒng)的綜合，鞏固和吸收；而且，對(duì)知識(shí)比以前有了更深入的了解，學(xué)到了很多先進(jìn)的專業(yè)技能。從地區(qū)分布來(lái)看，以珠江三角洲和長(zhǎng)江三角洲為中心的東南沿海地區(qū)發(fā)展快于中西部地區(qū)，南方的發(fā)展快于北方。由于模具企業(yè)效益欠佳及對(duì)科研開(kāi)發(fā)和技術(shù)攻關(guān)重視不夠，科研單位和大專院校的眼睛盯著創(chuàng)收，導(dǎo)致模具行業(yè)在科研開(kāi)發(fā)和技術(shù)攻關(guān)方面投入太少，致使模具技術(shù)發(fā)展步伐不大，進(jìn)展不快。我國(guó)模具行業(yè)今后仍需提高的共性技術(shù)有： (1)建立在CAD/CAE平臺(tái)上的先進(jìn)模具設(shè)計(jì)技術(shù)，提高模具設(shè)計(jì)的現(xiàn)代化、信息化、智能化、標(biāo)準(zhǔn)化水平。 隨著國(guó)民經(jīng)濟(jì)總量和工業(yè)產(chǎn)品技術(shù)的不斷發(fā)展，各行各業(yè)對(duì)模具的需求量越來(lái)越大，技術(shù)要求也越來(lái)越高。這些產(chǎn)品不但國(guó)內(nèi)配套大量需要，出口前景也很好，應(yīng)繼續(xù)大力發(fā)展。s largest country mold. (3) the level of die products is much lower than international standards, the production cycle is higher than the international standard .Products mainly manifested in low levels of precision molds, cavity surface roughness, and structure of life and so on. (4) the development of the capacity of poor, poor costeffectiveness Business and technical personnel in China die proportion of low, lower level, and do not attach importance to product development, often in the market in a passive position. Workers die in China each year to create an average value of about 10,000 . dollars, foreign mold most industrialized countries is 15 to 20 million, some as high as 25 to 30 million, with a relative die in our country a considerable number of panies also use the workshop management,only small business enterprise realize the modernization .There are many reasons for these disparities, in addition to the history of longterm did not die as a product the attention it deserves, as well as the mechanism for the majority of stateowned enterprises can not adapt to a market economy, there are several reasons for the following: (1) the state industrial policy tool support is not enough Although the state has issued a clear industrial policy tool industry, but few supporting policies, weak enforcement. Mold products currently enjoy the valueadded tax, only 185 panies nationwide, the majority of enterprises still too heavy tax burden. Die enterprises and the introduction of equipment to pay a considerable number of taxes, the impact of technological advances, loans and private enterprises is extremely difficult. (2) a serious shortage of qualified personnel, scientific research and development and technical research into small Mold industry is technology, capital, laborintensive industries, as times progress and technological development, master the use of new technologies and skilled personnel shortage abnormalities, advanced die fitter and corporate management personnel are also very tight. Enterprises as a result of poor mold and Technology and give inadequate attention to units and institutions of eyes staring at ine generation, leading to mold industry in research and development and technical research to invest too little, with the result that the pace of technological developed slowly .(3) low level of technique and equipment, and poor matching of a low utilization rate