成形模

Therefore this work aims to apply the concepts of near-net-shape forging to the forming of hexagonal bolts. FE software DEFORM 3D was utilized to simulate and verify the proposed forming schemes to achieve this end.

因此本研究导入近净形锻造的观念於六角螺栓的成形加工，以达到无废料的理想，並以金属成形的有限元素DEFORM 3D软体进行模擬，探討可行之近净形设计。

The influence of expanding-die diameter on the quality of finished products, such as the uniformity of deformation, the contour of a cross section and its ellipticity as well as the wall thickness of finished products, is discussed specially; a conception of relative radius of punch and the design criterion of it are given in this paper.

本文专门论述了机械扩径模具直径对成形品质的影响，提出了相对凸模半径的概念，系统分析了它对变形分布、成形件轮廓形状、椭圆度和壁厚的影响。

The simulation results show that the forming force will be increased markedly by increasing the diameter of steel billet and the entrance half angle.

模拟计算表明，随着坯料直径的增加以及入模半角的增大会引起成形力显著提高；此外，键齿高度的增加及宽度的减小也会引起成形力增加。

The effects of the wheel hub part structure on the metallic deformation flow actions during die forging process were analyzed by using the methods of combining the finite element numerical simulation with the experimental study, and the metalic deformation flow rule during die forging process was revealed.

摘 要：采用有限元模拟和实验研究相结合的方法，分析了模具结构对航空轮毂件模锻成形过程中金属变形流动行为的影响机理，揭示成形过程中金属变形及流动的规律。

Because of the unique fitting mode of hydraulic drawing, early wrinkles of conical parts (very likely to wrinkle in ordinary deep drawing) fit orderly to punch under the action of counter pressure as the punch moves down ward, thus wrinkle-free parts can be obtained.

由于充液拉深方法独特的贴模方式，使普通拉深方法极易起皱的锥形件成形初期产生的皱随着凸模向下运动在对向液压的作用下顺次贴向凸模，从而可以得到无皱的零件。

The results show that: the tensile strength, flexural strength and flexural modulus increase by about 10.4%, 62.1% and 122.3% respectively when the mass fraction of the aluminum powder increases from 0 to 50%, while elongation at break and impact strength decrease by about 65.0 and 74.4% respectively; the tensile strength, elongation at break and impact strength all increase with decreasing the particle sizes of the aluminum powders.b Nylon-12 coated metal powders for the indirect SLS process were prepared by the dissolution precipitation process. The coated powders have only 1.0 wt% nylon-12, and their SLS green parts have sufficient strength for features as small as 1.0 mm to be built and post-processed and high dimensional accuracy. The green parts were subjected to the post processing processes including binder decomposition and infiltration of epoxy resin, and then the metal/polymer composite parts with relatively high strength and accuracy were formed.At present, micron-scale inorganic fillers have been widely used to reinforce nylon SLS parts.

将该法制备的尼龙12覆膜金属粉末用于以下两个方面：a使用铝粉增强尼龙12的SLS成形件，通过溶剂沉淀法制备尼龙12覆膜铝复合粉末，研究了铝粉含量及粒径对SLS成形件性能的影响，结果表明：铝粉分散均匀，并与基体有良好的界面粘接；当铝粉含量从0增加到50wt％时，成形件的拉伸强度、弯曲强度、弯曲模量分别提高10.4％、62.1％和122.3％，冲击强度和断裂伸长率下降65.0％和74.4％，耐热性及尺寸精度也得到提高；断裂伸长率、冲击强度及拉伸强度均随着铝粉粒径的减小而增大。b使用溶剂沉淀法制备了间接法SLS用尼龙12覆膜金属粉末，该覆膜粉末中聚合物粘接剂的含量仅为1.0 wt％，其SLS初始形坯具有较高的精度以及足够满足后处理要求的强度，最小精细结构的尺寸达1.0 mm。

In this paper the forming process in the multi-ram forging process of high-pressure tee joint used in power industry and petroleum chemistry industry is introduced.

介绍了采用多向模锻锻制动力工业和石化工业用高压三通的工艺过程，通过FEM模拟总结出高压三通的基本成形规律，并揭示了高压三通多向模锻过程中水平冲头向上翘曲现象及其产生原因，为类似锻件的多向模锻工艺的设计提供了有益的借鉴。

A newly developed approach, in which sheet metal forming and plastics injection molding are integrated, was used to manufacture complex components combined with aluminum sheet and polypropylene with the mold of non-flat bottom via plastics injection molding machine.

摘 要：在注塑机上利用非平底凹模制备了形状较复杂的铝板/聚丙烯复合结构件，实现了将金属板料成形、塑料注射成形融为一体的复合成形的新工艺。

The opposite hydraulic pressure tension is a sheet forming method,using the reverse hydraulic pressure established during the raised mold and sheet enters the concave mold.

对向液压拉深是在凹模兼液压室的型腔内充满液体，利用凸模带动板料进入凹模后建立的反向液压而使板料成形的方法。

In this paper, by using the electromagnetic forming unit developed by ourselves, the influence of various parameters such as the thickness of elastomer, the diameter of the punch, the value of sorap and the installation form of the punch on the minimum discharge energy of blanking were studied on the base of experiments.

本文在自行研制的电磁成形机上利用试验方法，研究了带有传力介质的电磁成形落料的传力介质厚度、凸棋直径，搭边值及凸模安装型式等，对电磁成形落料最小放电能量的影响。

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。