【正文】
產(chǎn)生材料明細(xì)表和供 NC 加工的鉆孔表格,并能進(jìn)行智能化加工參數(shù)設(shè)定、加工結(jié)果校驗(yàn)等。另外, Cimatran 公司的 Moldexpert, Delcam公司的 Psmold 及日立造船的 SpaceE/mold 均是 3D 專(zhuān)業(yè)注塑模設(shè)計(jì)軟件,可進(jìn)行交互式 3D 型腔、型芯設(shè)計(jì)、模架配置及典型結(jié)構(gòu)設(shè)計(jì)。國(guó)內(nèi)有上海交通大學(xué)金屬塑性成型有限元分析系統(tǒng)和沖裁模 CAD/CAM 系統(tǒng);北京北航海爾軟件有限公司的 CAXA 系列軟件;吉林金網(wǎng)格模具工程研究中心的沖壓模 CAD/CAE/CAM 系統(tǒng)等。模具的發(fā)展趨勢(shì) . 模具 CAD/CAE/CAM 正向集成化、三維化、智能化和網(wǎng)絡(luò)化方向發(fā)展 ( 1)模具軟件功能集成化 模具軟件功能的集成化要求軟件的功能模塊比較齊全,同時(shí)各功能模塊采用同一數(shù)據(jù)模型,以實(shí)現(xiàn)信息的綜合管理與共享,從而支持模具設(shè)計(jì)、制造、裝配、檢驗(yàn)、測(cè)試及生產(chǎn)管理的全過(guò)程,達(dá)到實(shí)現(xiàn)最佳效益的目的。 ( 2)模具設(shè)計(jì)、分析及制造的三維化 傳統(tǒng)的二維模具結(jié)構(gòu)設(shè)計(jì)已越來(lái)越不適應(yīng)現(xiàn)代化生產(chǎn)和集成化技術(shù)要求。澳大利亞 Moldflow 公司的三維真實(shí)感流動(dòng)模擬軟件 MoldflowAdvisers 已經(jīng)受到用戶廣泛的好評(píng)和應(yīng)用。 ( 3)模具軟件應(yīng)用的網(wǎng)絡(luò)化趨勢(shì) 隨著模具在企業(yè)競(jìng)爭(zhēng)、合作、生產(chǎn)和管理等方面的全球化、國(guó)際化,以及計(jì)算機(jī)軟硬件技術(shù)的迅速發(fā)展,網(wǎng) 絡(luò)使得在模具行業(yè)應(yīng)用虛擬設(shè)計(jì)、敏捷制造技術(shù)既有必要,也有可能。如東風(fēng)汽車(chē)模具廠不僅擁有意大利產(chǎn) 3250mm3250mm三坐標(biāo)測(cè)量機(jī),還擁有數(shù)碼攝影光學(xué)掃描儀,率先在國(guó)內(nèi)采用數(shù)碼攝影、光學(xué)掃描作為空間三維信息的獲得手段,從而實(shí)現(xiàn)了從測(cè)量實(shí)物→ 建立數(shù)學(xué)模型 → 輸出工程圖紙 → 模具制造全過(guò)程,成功實(shí)現(xiàn)了逆向工程技術(shù)的開(kāi)發(fā)和應(yīng)用。 ( 2)數(shù)控電火花加工機(jī)床 日本沙迪克公司采用直線電機(jī)伺服驅(qū)動(dòng)的 AQ325L、 AQ550LLSWEDM 具有驅(qū)動(dòng)反應(yīng)快、傳動(dòng)及定位精度高、熱變形小等優(yōu)點(diǎn)。而高速銑削具有工件溫升低、切削力小、 加工平穩(wěn)、加工質(zhì)量好、加工效率高 (為普通銑削加工的 5~ 10 倍 )及可加工硬材料 (60HRC)等諸多優(yōu)點(diǎn)。 HSM 一般主要用于大、中型模具加工,如汽車(chē)覆蓋件模具、壓鑄模、大型塑料等曲面加工,其曲面加工精度 可達(dá) 。其特點(diǎn)是制造周期短,型腔精度高 (IT7 級(jí) ),表面粗糙度Ra= m,強(qiáng)度高,壽命可達(dá) 50 ( 2)超塑成型制模技術(shù) 該技術(shù)是利用金屬材料在細(xì)化晶粒、一定成型溫度、低變形速率條件下,材料具有最佳超塑性時(shí),將事先制作好的凸模,用較小的力便可擠壓出凹模的一種快速經(jīng)濟(jì)制模技術(shù)。 ,可適合各種黑色和有色金屬的 厚的板料加工。利用實(shí)型鑄造的技術(shù)制造模具毛坯具有尺寸精度高(ISO9 級(jí) ),加工余量小 (一般在 5mm 左右 ),不需要拔模斜度,不需要制型芯與泥芯撐,節(jié)省金屬材料,節(jié)省做木模型的木材,制造周期短,成本低。 Beijing Beihang Haier Software Ltd. CAXA Series software。s PIX30, PIX4 desktop scanner and the United Kingdom Taylor Hopson39。, may suit each 8 kind of black and the nonferrous metal thick sheet processing generally. The life may achieve 525 ten thousand, the production cost is low. 6. molds semifinished materials fast manufacture technology solid casting Because the massive molds are belong to the single unit or the production, the mold semifinished materials manufacture quality and the cycle and the cost to the final mold quality and cyclical and the cost influence are very important. The modern mold semifinished materials widely have used the seeds casting technology, the socalled solid casting is (polystyrene PS either polymethacrylate PMMA) manufactures using the foam plastics replaces traditional the wooden mold or the metal pattern, after the modelling does not have to take out the model, then may the casting, under the foam plastics model high temperature liquid metal function, deflagrate the gasification but to vanish, the molten metal substitution original foam plastics model holds the position, after the condensation forms the casting. The solid casting has the following several kind of situations in the practical application. (1) dry sands solid casting Namely all does not do any cementing agent quartz sand modelling with 55100 goal, spreads with EPS or the PMMA foam plastics manufacture model hangs the thick permeability good fireproof coating level, by enhances the casting superficially attractive fineness, prevented the fat sand or collapses the box. (2) negative pactions casting The negative paction casting calls V law modelling. This technology is the use all does but does not have the cementing agent the quartz sand to make the molding sand, makes the model with EPS or the PMMA foam plastics, in under the plastic film seal condition, entire lets cast (vacuum degree ) carries on the liquid metal casting under the negative pressure condition, after the casting coagulates relieves