成形模具

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.

本文对冷冲压技术的分类、特点及发展方向作了简略概述；论述了冲压零件的形成原理、基本模具结构与运动过程及其设计原理；对典型的冲压件模具进行了设计：大直径三通管冲压复合模设计解决了大直径三通管的加工难题、带有浮动凸凹模的拉伸冲孔复合模设计、适力压边式落料拉伸切边复合模设计、消音器后补碗落料、拉深、冲孔、翻边复合模设计、一模两件落料拉伸冲孔翻边复合模设计、环形弯曲件的模具设计、铰链卷圆成形工艺及模具设计、半自动送料切角装置设计、滑板式送料拉深、冲孔、翻边模设计实现自动送料、长管多孔冲模设计、带凸缘台阶方盒形零件拉深模和盒形件侧壁小孔翻孔模。

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,代写医学论文,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.

本文对冷冲压技术的分类、特点及发展方向作了简略概述；论述了冲压零件的形成原理、基本模具结构与运动过程及其设计原理；对典型的冲压件模具入行了设计：大直径三通管冲压复合模设计盖世了大直径三通管的加工难题、带有浮动凸凹模的拉伸冲孔复合模设计、适力压边式落料拉伸切边复合模设计、消音器后补碗落料、拉深、冲孔、翻边复合模设计、一模两件落料拉伸冲孔翻边复合模设计、环形弯曲件的模具设计、铰链卷圆成形工艺及模具设计、半自动送料切角装置设计、滑板式送料拉深、冲孔、翻边模设计实现自动送料、长管多孔冲模设计、带凸缘台阶方盒形零件拉深模和盒形件侧壁小孔翻孔模。

MPPF is the most optimal forming method, but it is expensive to achieve. More steps of MPDF can approximatively achieve the forming effect of MPPF.

多点压机成形是理想化的成形方式，但设备造价昂贵，多道次多点模具成形可以近似实现多点压机成形效果。

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,代写医学论文,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.

本文对冷冲压技术的分类、特点及发展方向作了简略概述；论述了冲压零件的形成原理、基本模具结构与运动过程及其设计原理；对典型的冲压件模具进行了设计：大直径三通管冲压复合模设计盖世了大直径三通管的加工困难的问题、带有浮动凸凹模的拉伸冲孔复合模设计、适力压边式落料拉伸切边复合模设计、消音器后补碗落料、拉深、冲孔、翻边复合模设计、一模两件落料拉伸冲孔翻边复合模设计、环形弯曲件的模具设计、铰链卷圆成形工艺及模具设计、半自动送料切角装置设计、滑板式送料拉深、冲孔、翻边模设计实现自动送料、长管多孔冲模设计、带凸缘台阶方盒形零件拉深模和盒形件侧壁小孔翻孔模。

MARC. And also the influence on final thickness distribution of surface friction of preforming die and forming die was analyzed.

MARC有限元模拟研究了不同形状的预成形模对深筒形件侧壁厚度分布的影响，并分析了预成形模和终成形模的表面摩擦系数分别对成形件壁厚分布的影响，提出了模具型面变摩擦控制厚度分布的方法。

Computer aided engineering for sheet forming is an applied technique which puts the technique of numerical simulation of sheet forming in the core, and syncretizes all kinds technique such as CAD, CG and CAM. It supplies a powerful tool for die design and optimizing of sheet forming technics, such that CAE for sheet forming becomes the one of front research direction of forming technique in the world, and has large advancing potential.

板料成形计算机辅助工程是一个以基于有限元计算的板料成形数值模拟技术为核心，融合CAD、CG、CAM等各类技术于一体的应用技术，它为模具的研制和成形过程的优化提供了一个强有力的工具，是当前国际上成形技术研究的最前沿方向之一，并具有巨大的发展潜力。

Experimental research of forming process for axle shaft sleeve with flange far from big end;2. Applying software DEFORM,the forming process has been analyzed for axle shaft sleeve .

应用DEFORM软件对半轴套管成形过程进行数值模拟，分析了金属在成形过程中各种场量的变化，对不同成形方案金属流动情况进行了预测，确定了最优的成形工艺和合理的模具结构。

Advantages of traditional crank press technology include low production cost and high speed production rate (30~1200 pieces per minute). Requirements of complicated die and limited product forming are the shortcomings. Additionally, the advantages of traditional hydro-forming technology are good product quality, complicated geometric shape and easy-made die. However the disadvantages are expensive cost of equipment, low production speed (less than 5 pieces per minute), and is not applicable to multi-station progressive process and high pressure working environment that has the concern of industrial safety.

传统曲轴冲压技术之优点是生产成本低廉及生产速度快(每分钟30~1200件)，缺点是模具复杂及成品形状成形性受限制；传统液压成形技术之优点是成品品质佳、几何形状容许大变形及模具简易，缺点是设备成本高、生产速度很慢(每分钟5件以下)、不适合多工程连续加工且具有高压之工安问题。

To study the effect of thermal deformation parameters such as punch velocity,forming temperature and forming load on forming process of 5A02 aluminum alloy microgears,a microdie is designed and fabricated and pressing ratio is used as evaluation parameter to indicate compactness.

为了研究凸模速度、成形温度和成形载荷等热变形参数对5A02铝合金微型齿轮成形的影响规律，设计制造了微型齿轮模具，在自行研制的微塑性成形设备上，将压入高度比作为填充程度的评价参数进行了成形实验，成功获得了质量良好的节圆直径为Φ1 mm的5A02铝合金微型齿轮。

Laser bending is a forming technology which makes use of a thermal stress and thermal strain to achieve sheet metal bending in recent year, and it needs no die and external force. The laser beam energy has good controllability. Laser technology is used in forming of magnesium alloy sheet, this can full play the unique advantages of the technology.

激光弯曲成形是一种利用热应力来实现板材成形的技术，激光弯曲成形不需模具和外力，且激光束能量集中具有良好的可控性，将激光成形技术用于镁合金板材成形，可以充分发挥该技术的独特优势。

Singer Leona Lewis and former Led Zeppelin guitarist Jimmy Page emerged as the bus transformed into a grass-covered carnival float, and the pair combined for a rendition of "Whole Lotta Love".

歌手leona刘易斯和前率领的飞艇的吉他手吉米页出现巴士转化为基层所涵盖的嘉年华花车，和一双合并为一移交&整个lotta爱&。

This is Kate, and that's Erin.

这是凯特，那个是爱朗。