【正文】 with each link information that realizes the technique ,The information gathers unify with data the management is a information of the product is to pierces through in the design, analyze, process, examine, assemble a stage,Fluency, solution data format that realizes each link information stan dardizes and the data maintenance is a point with future CAD that share to gather technique system of PDM emergence is to resolve this problem brought the first light of is molding tool business enterprise application CAD that the system of PDM puts into practice gather technical and important in molding tool manufacturing aspect,The intelligence that imply the research, high speed that abundant expert39。s mold in manufacturing the hour can take shape with the fleetness the spare parts makes the female die,Create first the soft mold between wreath oxygen resin mold or other material, sprinkle to note porcelain and ceramics or gypsum molds in soft mold, then sprinkle the steel of 214。 , wreath oxygen resin mold, 185。 slices,Measure its size directly with the , it can dissolve mistake at process the stage of craft plait distance design, reduce to repair after processing with return the work, increases consumedly the manufacturing efficiency of the molding tool with quantity. 5, plastics product and its molding tools take shape the manufacturing quickly Plastics product and its molding tools use the puter CAD technique design after pleting, can pass the fleetness take shape the technique is the manufacturing technique of a kind of all new concept, It abandoned the traditional machine processes the take shape principle is three 206。 ,(7) The puter control number controls the technique of DNC and clusters of the machine bed control the technical and applied etc..Need the CAD specially in technical application in CAM three 206。 ,(3) slicing the 207。207。207。220。t equilibrium alive with type 199。 the process flows the circumstance( the plastics with sprinkle a people more inject remits to flow the analysis of 206。 fills process analysis etc. a few use of the advanced characteristic shape software,such as PRO/ E, etc. of UGII, the very easily certain dividing the type,Born top and bottom mold 199。 to a data cluster, row preface, part modification and reorganization, then automatic born curved face,It is end to acquire together the real object precision is consistent of or puter 203。172。s have:UGII, PRO/ E, IDEAS, CATIA, etc. of EUCLID。172。172。39。247。 PDM系統(tǒng)的出現為解決這一問題帶來了曙光。 或者在軟模中澆注混合有化學粘結劑的鋼粉 ,進行燒結成鋼模。 FDM法由于成形速度快 ,成本低 ,在塑料產品行業(yè)中得到較好的應用 , 由于零件的尺寸小 ,精度差 ,也受到一定的限制。 塑料產品及其模具的快速成形制造 塑料產品及其模具用電腦 CAD技術設計完成后 ,可通過快速成形技術來制造。其主要的技術特點包括 : (1) 粗、精加工刀具軌跡的優(yōu)化規(guī)劃和 NC 指令的產生 , (2) 刀具種類 、特性和材料庫的建立 , (3) 切削加工工藝參數的確定 , (4) 普通切削和高速切削加工的特性控制 , (5) 過切檢查與加工表面的精度控制 , (6) 加工過程的電腦實體仿真切削 , (7)電腦控制數控機床的 DNC技術及群控技術的應用等等。 是否存在注塑工藝不對 , 出現產品的翹曲變形等。通過讀取標準格式文件來直接建立或修改后建立產品模型 , 既可加快、加深用戶與模具廠家的交流 , 也可縮短產品設計周期。 產品的動態(tài)廣告設計是將產品設計的結果直接制作宣傳廣告 , 進行市場推廣。二維軟件有 : ME CADKEY、 AUTOCAD、 DHCAD、 Genis、 Sigraph 等 。傳統(tǒng)產品設計方法是設計者對產品的三維構思用二維平面圖紙表達出來 , 圖紙上標明工藝及施工方法 ,這種方法決定了所設計圖形的簡單性及不能直接控制制造質量。 引言 模具 CAD集成技術是一項重要的模具先進制造技術 , 是一項用高技術改造模具傳統(tǒng)技術的重要關鍵技術。各個環(huán)節(jié)所涉及的 CAD單元技術有 :造型和結構設計 (CAD)、產品外形的快速反求 (RE)、結構分析與優(yōu)化設計 (CAE)、輔助制造 (CAM)、加工過程虛擬仿真 (SIMULATION)、產品及模具的快速成形 (RP)、輔助工藝過程 (CAPP)和產品數據管理技術 (PDM)等。下面進一步分析各種技術的內涵和特點。 三維造型設計是數字化的產品的真實形狀設計 , 它完全表達了產品 , 能夠進一步為模具設計、分析和加工提供必要的數學模型 。利 用其它 CAD系統(tǒng)的標準格式文件來建模 , 這一方式較方便。比如是否存在澆注系統(tǒng)不合理 , 出現流道和澆口位置尺寸不當 , 無法平衡充滿型腔 。因此 , 參數化特征造型技術是模具制造過程最重要的技術之一。加工實體仿真是在電腦上模仿機床的加工過程 , 能直觀反映加工的結 果 , 能直接評估加工后零件的質量 , 能檢查出加工的錯誤。第一臺快速成形設備于 1987年在美國 3D公司誕生 , 由于其特點是與制造的產品的復雜程度無關 , 給制造業(yè)帶來巨大的震動?？焖俪尚渭夹g制造的產品模型在材質方面比傳統(tǒng)加工方法制造的產品模型有所差別 , 但在外形及尺寸方面幾乎完全一樣 , 而且有一定的機械強度 , 可作功能性試驗 ,同時經過表面處理 , 看起來與真實產品一樣 ,可作廣告宣傳品。 模具 CAD集成技術的發(fā)展趨勢 綜上所述 , 模具 CAD集成技術就是應用于模具制造各個環(huán)節(jié)的計算機輔助技術和實現各環(huán)節(jié)信息集成的技術。t produce result nicely, Result in very big and text gathers for the plastics molding tool CAD technique and its applications announce some standpoint, provide everybody consults. 1, the plastics molding tool CAD gathers technique The manufacturing of the plastics molding tool tains the construction design of the shape design, molding tool and the number of the analysis, molding tools that include the plastics products control to process( 207。s conceive outline to use two 206。 models proceed the molding tool construction the design and excellent turn the design,Design according to the molding tool construction again three 206。 entity shape design, three 206。s have:ME10, CADKEY, AUTOCAD, DHCAD, Genis, etc. of Sigraph。172。199。190。220。208。 dissatisfied( namely short shoot the phenomenon)。 , like this since can realize the data share,Can satisfy the customer again to the at any time modifying of the design, make the design analysis of the molding tool fast, accurate, parameter turns the characteristic shape can not only describe the product pletely then several why sketch information,And can acquire accuracy, material and assemble etc. informations of the product, its a product for establishing model is a kind of apting to handle and can reflect design intention with process the model of the ,The parameter turns the characteristic shape technique is an one of the most important technique in process