Elaborated the punching components formation principle, the basic dies structure and the rate process and the principle of design; and designed some conventional punching die:the die for big diameter three direction pipe which solved the problom of traditional machining,the drawing and punching compound die with float punch-matrix,the drawing and cutting compound dies with unaltered press,the compound die for the back bowl of the noise keeper,the design of the compound die which could produce two workpieces in one punching,the bending die for the ring shape part ,the bending die which used the gemel ,automate loading die for cutting, the drawing,punching and burring compound dies with sliding automated loading,the punching die for the long pipe with two row of hole,the drawing die for the square box shape workpiece and the burring die for the box shape workpiece.

本文對冷沖壓技術(shù)的分類欧美性视品、特點及發(fā)展方向作了簡略概述欧美免插；論述了沖壓零件的形成原理又色又猛又黄的视频、基本模具結(jié)構(gòu)與運(yùn)動過程及其設(shè)計原理一级大片网址；對典型的沖壓件模具進(jìn)行了設(shè)計：大直徑三通管沖壓復(fù)合模設(shè)計解決了大直徑三通管的加工難題、帶有浮動凸凹模的拉伸沖孔復(fù)合模設(shè)計日本KKK色最大网站、適力壓邊式落料拉伸切邊復(fù)合模設(shè)計国产免费午夜福利院网孕、消音器后補(bǔ)碗落料、拉深在线午夜福利网站、沖孔人人H在线一区二区、翻邊復(fù)合模設(shè)計、一模兩件落料拉伸沖孔翻邊復(fù)合模設(shè)計色在线国产、環(huán)形彎曲件的模具設(shè)計女人特黄大片视频、鉸鏈卷圓成形工藝及模具設(shè)計、半自動送料切角裝置設(shè)計精品一区二区三区人妻视频、滑板式送料拉深谁有可以直接看av的网站、沖孔、翻邊模設(shè)計實現(xiàn)自動送料免费一极a毛片免费视频、長管多孔沖模設(shè)計欧美www在线观看、帶凸緣臺階方盒形零件拉深模和盒形件側(cè)壁小孔翻孔模。

Elaborated the punching components formation principle, the basic dies structure and the rate process and the principle of design; and designed some conventional punching die:the die for big diameter three direction pipe which solved the problom of traditional machining,the drawing and punching compound die with float punch-matrix,代寫醫(yī)學(xué)論文,the drawing and cutting compound dies with unaltered press,the compound die for the back bowl of the noise keeper,the design of the compound die which could produce two workpieces in one punching,the bending die for the ring shape part ,the bending die which used the gemel ,automate loading die for cutting, the drawing,punching and burring compound dies with sliding automated loading,the punching die for the long pipe with two row of hole,the drawing die for the square box shape workpiece and the burring die for the box shape workpiece.

本文對冷沖壓技術(shù)的分類免费在线日本视频、特點及發(fā)展方向作了簡略概述日韩丝袜清纯自拍视频在线观看；論述了沖壓零件的形成原理、基本模具結(jié)構(gòu)與運(yùn)動過程及其設(shè)計原理全免费又大粗又黄又爽；對典型的沖壓件模具入行了設(shè)計：大直徑三通管沖壓復(fù)合模設(shè)計蓋世了大直徑三通管的加工難題国产精品自拍一区在线播放、帶有浮動凸凹模的拉伸沖孔復(fù)合模設(shè)計、適力壓邊式落料拉伸切邊復(fù)合模設(shè)計国产男女激情一区二区、消音器后補(bǔ)碗落料av呦呦、拉深、沖孔91午夜黄色视频、翻邊復(fù)合模設(shè)計呦呦网站在线观看、一模兩件落料拉伸沖孔翻邊復(fù)合模設(shè)計久久网色、環(huán)形彎曲件的模具設(shè)計、鉸鏈卷圓成形工藝及模具設(shè)計人人操人人干人人爱人人做、半自動送料切角裝置設(shè)計在线无码观看黄片、滑板式送料拉深、沖孔一级大黄片欧美性爱、翻邊模設(shè)計實現(xiàn)自動送料、長管多孔沖模設(shè)計第一中文字幕AV在线、帶凸緣臺階方盒形零件拉深模和盒形件側(cè)壁小孔翻孔模一级夫妻生活a片在线观看。

Finally, the paper presents a relatively complete plan for the reform of course system regarding such special topics as projection principles and basic drawing skills, applied foundation of projection graphics and general purpose computer assisted graphics software, mechanical drawing and general purpose computer assisted drawing software, special computer assisted drawing topics, etc.

多媒體計算機(jī)輔助教學(xué)以其聲音、圖像中文欧美福利、動畫大家操大家日超碰、文字為一體的技術(shù)特點，為教學(xué)手段的現(xiàn)代化及教學(xué)課程體系的改革帶來了很好的機(jī)遇亚洲网络在线。

Several affect factors of cylinder part limiting drawing parameter in deep-drawing were summarized in detail. Some new and practically applicable equations for estimating the limiting drawing parameter in the cup-drawing of a cylindrical cup with a flat-nosed punch are derived separately based on the load-maximum principle for localization of the plastic flow.

目前久久精品视频大全，國內(nèi)外對極限拉深系數(shù)進(jìn)行的研究較多，文獻(xiàn)中詳細(xì)地總結(jié)了板料成形中圓筒件極限拉深系數(shù)的若干影響因素99这里只有精品99，并基于最大承載原則提出了一些計算圓筒件極限拉深系數(shù)的實用公式日韩三级黄片。

The dynamics and heat transfer on the spinning line during the air drawing process are discussed in detail, mainly relating the forces acting upon the polymer along the spinning line and the expressions of the air drawing coefficient C〓 and heat transfer coefficient h. By introducing the power-law model as the constitutive equation to describe the theological properties of polymer melt and considering the changing of the density and specific heat capacity of polymer melt at constant pressure with the polymer temperature, the former model of polymer air drawing is improved and a complete polymer air drawing model is established, which is integrated with the model of air jet flow field of dual slot die.

在此基礎(chǔ)上，對前人的聚合物拉伸理論模型進(jìn)行了改進(jìn),一级不卡黄色视频免费观看，以冪律模型作為描述聚合物熔體流變行為的本構(gòu)方程欧美性爱群交视频，并考慮了聚合物熔體密度和定壓比熱隨聚合物熔體溫度變化而變化這個因素，從而建立了完整的熔噴聚合物拉伸理論模型91色国产在线。

Elaborated the punching components formation principle, the basic dies structure and the rate process and the principle of design; and designed some conventional punching die:the die for big diameter three direction pipe which solved the problom of traditional machining,the drawing and punching compound die with float punch-matrix,代寫醫(yī)學(xué)論文,the drawing and cutting compound dies with unaltered press,the compound die for the back bowl of the noise keeper,the design of the compound die which could produce two workpieces in one punching,the bending die for the ring shape part ,the bending die which used the gemel ,automate loading die for cutting, the drawing,punching and burring compound dies with sliding automated loading,the punching die for the long pipe with two row of hole,the drawing die for the square box shape workpiece and the burring die for the box shape workpiece.

本文對冷沖壓技術(shù)的分類午夜AV福利网站、特點及發(fā)展方向作了簡略概述；論述了沖壓零件的形成原理日韩在线精品色欲视频播放网站免费、基本模具結(jié)構(gòu)與運(yùn)動過程及其設(shè)計原理A片视频在线一区二区；對典型的沖壓件模具進(jìn)行了設(shè)計：大直徑三通管沖壓復(fù)合模設(shè)計蓋世了大直徑三通管的加工困難的問題、帶有浮動凸凹模的拉伸沖孔復(fù)合模設(shè)計好男人社区影视在线、適力壓邊式落料拉伸切邊復(fù)合模設(shè)計欧美日韩va视频、消音器后補(bǔ)碗落料、拉深久久伊人中文字幕色综合、沖孔国产高清在线a视频大全在线、翻邊復(fù)合模設(shè)計、一模兩件落料拉伸沖孔翻邊復(fù)合模設(shè)計国产精品三级啪啪、環(huán)形彎曲件的模具設(shè)計a级日韩黄片欧美、鉸鏈卷圓成形工藝及模具設(shè)計、半自動送料切角裝置設(shè)計欧美日韩黄色小说小电影网、滑板式送料拉深欧美综合性爱、沖孔综合亚洲伊人午夜网、翻邊模設(shè)計實現(xiàn)自動送料、長管多孔沖模設(shè)計国产爱在线、帶凸緣臺階方盒形零件拉深模和盒形件側(cè)壁小孔翻孔模亚洲综合色色色。

Elaborated the punching components formation principle, the basic dies structure and the rate process and the principle of design; and designed some conventional punching die:the die for big diameter three direction pipe which solved the problom of traditional machining,the drawing and punching compound die with float punch-matrix,the drawing and cutting compound dies with unaltered press,the compound die for the back bowl of the noise keeper,the design of the compound die which could produce two workpieces in one punching,the bending die for the ring shape part ,the bending die which used the gemel ,automate loading die for cutting, the drawing,punching and burring compound dies with sliding automated loading,the punching die for the long pipe with two row of hole,the drawing die for the square box shape workpiece and the burring die for the box shape workpiece.

本文對冷沖壓技術(shù)的分類、特點及發(fā)展方向作了簡略概述粉色视频又黄又爽免费；論述砬沖壓零件的形成原理一级片久久、基本模具結(jié)構(gòu)與運(yùn)動過程及其設(shè)計原理；對典型的沖壓件模具進(jìn)好的了設(shè)計：大直徑三通管沖壓復(fù)合模設(shè)計蓋世了大直徑三通管的加工難題免费的一级毛片、帶有浮動凸凹模的拉伸沖孔復(fù)合模設(shè)計性大片免费看、適力壓邊式落料拉伸切邊復(fù)合模設(shè)計、消音器后補(bǔ)碗落料717电影院理论片在线观看、拉深日本爆乳视频、沖孔、翻邊復(fù)合模設(shè)計国产精品永久免费啪啪啪、一模兩件落料拉伸沖孔翻邊復(fù)合模設(shè)計日本a在线网址、環(huán)形彎曲件的模具設(shè)計、鉸鏈卷圓成形工藝及模具設(shè)計国产精品自拍在线、半自動送料切角裝置設(shè)計成年人的网站、滑板式送料拉深、沖孔久久久久久久精品电影网、翻邊模設(shè)計實現(xiàn)自動送料伊人草在线视频、長管多孔沖模設(shè)計、帶凸緣臺階方盒形零件拉深模與盒形件側(cè)壁小孔翻孔模欧美黑人性做受。

"Electronic 1C Chip drawing system" provides many functions such as "modify the position of the component"s diagram""modify the color of the component"s diagram""magnify and minify the component"s diagram without distortion""change the type of drawing line""edit some physical properties of the component""copy and paste diagram of one component""delete one or more component diagrams""move more than one components" positions""change the z_order of the diagram,set it to back or bring it to front""save the drawing of the electronic components to one file and the file extension name is *.brd""print the drawing".

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Elaborated the punching components formation principle, the basic dies structure and the rate process and the principle of design; and designed some conventional punching die:the die for big diameter three direction pipe which solved the problom of traditional machining,the drawing and punching compound die with float punch-matrix,the drawing and cutting compound dies with unaltered press,the compound die for the back bowl of the noise keeper,the design of the compound die which could produce two workpieces in one punching,the bending die for the ring shape part ,the bending die which used the gemel ,automate loading die for cutting, the drawing,punching and burring compound dies with sliding automated loading,the punching die for the long pipe with two row of hole,the drawing die for the square box shape workpiece and the burring die for the box shape workpiece.

本文對冷沖壓技術(shù)的分類、特點及發(fā)展方向作了簡略概述国产精品久久婷婷人人爽；論述砬沖壓零件的形成原理免费黄色在线观看网站、基本模具結(jié)構(gòu)與運(yùn)動過程及其設(shè)計原理；對典型的沖壓件模具進(jìn)行了設(shè)計：大直徑三通管沖壓復(fù)合模設(shè)計蓋世了肥直徑三通管的加工難題日韩久久精品视频、帶有浮動凸凹模的拉伸沖孔復(fù)合模設(shè)計www.renrenav.com、適力壓邊式落料拉伸切邊復(fù)合模設(shè)計、消音器后補(bǔ)碗落料自拍偷拍色综合、拉深、沖孔亚洲无码要在线视频、翻邊復(fù)合模設(shè)計国产乱在线观看完整版视频、一模兩件落料拉伸沖孔翻邊復(fù)合模設(shè)計、環(huán)形彎曲件的模具設(shè)計欧美一区二区黄色片、鉸鏈卷圓成形工藝及模具設(shè)計免费人成视频在线观观看网站、半自動送料切角裝置設(shè)計、滑板式送料拉深国产Aⅴ无码专区,亚洲Av、沖孔91性爱网站、翻邊模設(shè)計實現(xiàn)自動送料、長管多孔沖模設(shè)計操逼亚洲色、帶凸緣臺階方盒形零件拉深模與盒形件側(cè)壁小孔翻孔模午夜影院性。

Elaborated the punching components formation principle, the basic dies structure and the rate process and the principle of design; and designed some conventional punching die:the die for big diameter three direction pipe which solved the problom of traditional machining,the drawing and punching compound die with float punch-matrix,the drawing and cutting compound dies with unaltered press,the compound die for the back bowl of the noise keeper,the design of the compound die which could produce two workpieces in one punching,the bending die for the ring shape part ,the bending die which used the gemel ,automate loading die for cutting, the drawing,punching and burring compound dies with sliding automated loading,the punching die for the long pipe with two row of hole,the drawing die for the square box shape workpiece and the burring die for the box shape workpiece.

本文對冷沖壓技術(shù)的分類、特點及發(fā)展方向作砬簡略概述26uu另类自拍；論述了沖壓零件的形成原理最新国产区、基本模具結(jié)構(gòu)與運(yùn)動過程及其設(shè)計原理；對典型的沖壓件模具進(jìn)行了設(shè)計：肥直徑三通管沖壓復(fù)合模設(shè)計蓋世了大直徑三通管的加工難題国产毛片不卡在线视频、帶後浮動凸凹模的拉伸沖孔復(fù)合模設(shè)計黄色视频在线观看你懂的、適力壓邊式落料拉伸切邊復(fù)合模設(shè)計、消音器后補(bǔ)碗落料久久再先视频、拉深国产高潮流白浆免费网站、沖孔、翻邊復(fù)合模設(shè)計不卡毛片在线观看、一模兩件落料拉伸沖孔翻邊復(fù)合模設(shè)計精品国产日韩欧美精品制服、環(huán)形彎曲件的模具設(shè)計、鉸鏈卷圓成形工藝及模具設(shè)計自拍偷拍视频3、半自動送料切角裝置設(shè)計污污污91禁在线永久免费观看、滑板式送料拉深色色色日本色色、沖孔、翻邊模設(shè)計實現(xiàn)自動送料成人网站国产在线视频内射视频、長管多孔沖模設(shè)計超乳爆乳无码视频在线影院、帶凸緣臺階方盒形零件拉深模與盒形件側(cè)壁小孔翻孔模。