成形的

On the basis of different behaviors of alternative electromagnetic field for induction and electromagnetic shaping, the process of dual frequency electromagnetic shaping of molten metal was firstly presented.

从固态金属感应加热熔化和液态金属电磁成形两个角度出发，讨论了金属熔体双频电磁成形中的频率选择，物理量的分布以及两种双频电磁成形的试验过程。

After a brief introduction on the present situation of hydro-shaping technique at home and abroad and the technological peculiarity of fascia board girder ,the simulative experiment was designed and the finite element models of direct shaping and stepped shaping were established.

在简要介绍液压成形技术在国内外的现状及仪表板梁的工艺特点之后，设计了仿真试验并建立了直接成形和分步成形的有限元模型。

Interlaken's Hydroforming Press was designed to embrace both tube hydroforming and sheet hydroforming applications.

因特拉肯的内高压成形新闻是为了拥抱都管件液压成形和板材成形的申请。

The study on laser bending-forming is still in starting phase, so the parameters of laser bending-forming (include laser parameter 、 sheet parameter、 property of material etc.) still can't be controlled accurately. It is also a technique difficulty of laser bending-forming and the important impedimental factors to development of the technique that the inscrutability of forming results and the difficulty to select process parameters.

激光弯曲成形的研究还处于起步阶段，关于激光弯曲成形的参数(包括激光参数、板材参数、材料性能等)还没有达到精确控制的程度，同时成形结果难以预测和加工参数难以选定也是激光弯曲成形技术的一个难点，也是阻碍这一技术向前发展的重要因素。

At first step, the processor before the deformable body contact the end face of cone die cavity regarded as an extrusion process. The minification of core boss's cross-section regarded as compressibility of direct extrusion, which acted as definition factor when construct the Direct Extrusion Model element. Another step, the model element of flat punch extrusion on wedge piece process was constructed when propose the process of deformable body overflow die corner. In this way the spherical end face of blank looked as cone end face one, t he approximate treatment is one of originality innovation in this paper. At last, the two elements have been connected and constructed the model element of cone boss part's deformation in the open die forging.

对于锥形凸台成形的第一个特征时段，即坯料和锥形凸台型腔的端面接触之前的变形过程，本文将凸台的截面缩小率转换成挤压成形的压缩率并以此为界定，建立了不同截面缩小率时的锥形模正挤压的模型单元；对于锥形凸台成形的第二特征时段即锥形模的角部充满过程，在详细考察锥形型腔端面对变形过程影响的基础上，将变形体的球形端面近似成锥面建立了平冲头挤压楔形体的模型单元；最后将前述两种模型单元有机连结，构建了开式模锻中整个锥形凸台成形过程的定量描述。

Based on the analysis of advantages on laser thermal-stress forming and laser peen forming, a laser pre-stressed compound peen forming of plate is presented, the technology combines heat stack action of continuous laser and shock wave action of pulse laser, so it combines heating effect and mechanics effect.

在对激光热应力成形和激光喷丸成形的技术优势进行分析的基础上，提出了一种板料激光预应力复合喷丸成形技术，其将连续激光的热堆积作用和脉冲激光的冲击波作用相结合，是一种热效应和力效应复合的成形方法。

Basing on this mode and his two invention patents, chooseing ANSYS as platform and linking the important project of JiLin province Science and technology ministry 'cylindrical and cone spurgears rolling preform and extrusion precise forming equipment research and manufacture for automobile'(NO.20030311), the author made the finite element numerical simulation about elasto-plastic large deformation heat-force couping of rolling preform and stamping-extrusion and bulge-extrusion combining precise forming for spur gear', investigated qualitativiely and quantitatively on the gears formability for the environmental and the blank parameters , summarized some useful conclusions.

本论文是我的导师宋玉泉教授关于&塑性精密成形&研究方向的一个组成部分，按照他所提倡的&科、教、产一体化&培养模式，并以他的两项发明专利为依托，立足于以ANSYS软件为模拟平台，密切结合吉林省科技厅重点项目&汽车用圆柱圆锥直齿轮滚轧和挤压精成形设备研制&(批准号：20030311)和吉林大学超塑性和塑性研究所&直齿轮中试生产线建设&，开展了对&圆柱直齿轮滚轧制坯－镦挤、胀挤复合精成形&的有限元弹塑性大变形热－力耦合数值模拟，对环境参数和轧件内部的参数对制件成形性的影响进行了定性和定量的研究，总结了一些有意义的结论。

The second, according to mapping function of blank and product sections, and to many interpolating functions along model-cavity vertical surface, paper has built mathematics model, fluid surface function of special-shaped product plastic deformation and velocity field, gotten basis theory for metal forming prediction, for example empty drawing metal pipe thickness homogeneity and special-shaped product fluid regular, die parameter optimization and integration research of die CAD/CAM.

根据拔制坯料和制品截面映射函数和模腔纵向多种插值函数（直线型、凸型、凹型和三次多项式型），建立了相似异型材、圆形坯料——异型材和异型材——异型材三维金属拔制塑性成形的数学模型和异型材塑性成形的流面方程及流动场方程，为预报金属成形规律（如：空拔管壁均化、异型材流动规律），模腔参数优化及其CAD／CAM一体化研究提供了理论基础。

Both multi-point press forming and multi-step multi-point die forming make the full use of multi-step forming.

多点压机成形和多道次多点模具成形充分利用多点成形的柔性特点，实现了对板材变形路径的控制。

Secondly, due to the orientation above, research on inclined wire former should solve the special requirements for low consistency, long fibre pulp's formation on the basis of the commonness of paper machine's former, which required the equipments' structure to take full use of the advantages of inclined wire.

其次，由前面的定位，研究斜网成形器的设计应在纸机成形器共性的基础上具体解决低浓度、长纤维纸浆成形的特殊要求，成形所要求的设备结构要充分发挥斜网的优越性。

The good news is that after formatting from the command line to FAT32 (format /fs:fat32 /a:4096 drive:) all but one of the problematic games that I tested work perfectly.

好消息是，从指挥线后格式化了FAT32(格式/曾荫权：了FAT32/答：4096年径：)所有问题，但其中的游戏测试工作，我很好。

In Amsterdam. He is a Dutch painter, draftsman, and etcher of the 17th century, the greatest artist of the Dutch school, a master of light and shadow whose paintings, drawings, and etchings made him a giant in the history of art.

伦勃朗是一位17世纪画家、绘图家、版画家，荷兰学派的最伟大艺术家，他的明暗法的大师，他的绘画、素描和版画使他成为一位艺术史上的巨匠，其画作体裁广泛，擅长肖像画、风景画、风俗画、宗教画、历史画等。