成形的

The difficulty of aluminum alloy shell workpiece with empennages was analyzed during plasticity forming, and its forming process and die designing was introduced.

分析了带尾翼铝合金壳体零件在塑性成形过程中的难点，介绍了壳体零件的成形工艺与模具设计的方法。

It is difficult to realize a large-scale production of Mg partsthrough press forming and stamping process, which greatly restricts their appl...

但镁合金的塑性随温度的升高而显著改善，这就使镁合金在高温下通过锻压成形和超塑成形来生产所需的零件成为可能。

The shape and forming pattern of the complicated vehicle parts have been studied and a new method for forming classification of parts has been proposed according to the shape characteristics and major forming patterns of critical portions in the press forming.

对汽车复杂冲压件的结构特征和变形方式进行分析，根据零件冲压成形中危险部位的结构特征和主要变形方式，建立了对零件进行成形分类的新方法。

3D FEM has been employed to analyze and simulate numerically the process of hot extrusion of transmission shaft forgings with deep research of phenomena of top and bottom of fork that not completely filled in the forming process hence all especial punch die structure preventing the defects been developed.

新闻摘要：采用三维有限元法对套管叉锻件热挤压成形过程进行了数值模拟仿真分析。针对其成形过程中出现的叉部顶端及底端充不满现象进行了深入分析，提出了防止缺陷产生的一种特殊的凸模结构。

In 2002, Jaquiss typeset the Braille for the book Touch the Universe, written by Noreen Grice and sponsored by NASA and the Joseph Henry Press. In 2005 he produced the molds for the book Touch the Sun by using thermoform technology, which was developed in the late '50s and '60s.

2002年，加奎斯为诺琳格赖斯编写并由国家宇航局和约瑟夫亨利出版社赞助出版的书《触摸宇宙》进行了盲文版的排版工作。2005年，他使用热成形技术为《触摸太阳》一书制作了模型，热成形技术是一种在50和60年代后发展起来的新技术。

The principle and method for designing forming machine tool profile with the help of the relative functions of AutoCAD R14, it overcame the complicated depth calculation of forming machine tool profile.

介绍了一种利用AutoCAD R14的有关功能进行成形车刀廓形设计的原理和方法，用该方法方便地解决了成形车刀廓形深度计算的繁琐问题。

By means of the FEM, this paper analyzes in detail the stress and strain distribution in sheet metal and its varying tendency of thickness and height during cup hydrodynamic deep drawing, and sums up the roles of soft bead and cavity pressure contribution on sheet metal forming.

研究和分析了在不同成形条件下板料内部应力应变的分布、厚度的变化趋势等，总结出软拉深筋和充液室液体压力对提高板料成形极限的作用。

According to the shape character of steering knuckle, the metal flow and defects of current process were analyzed and summarized.

中文摘要：分析并归纳了转向节的形状特点，阐述了转向节预、终锻成形过程的金属流动特性和现有成形工艺存在的缺陷及产生原因。

In addition, this paper also makes preliminary study on spring back of HSS plate forming, because the spring back defect in automobile panel forming is the most complex problem.

另外，基于大型汽车覆盖件成形生产中最为令人困惑的回弹问题，本论文还对高强度钢板成形后的回弹现象进行了初步的探讨。

The FLDs of the two blanks—A15754 and SPCC—have been predicted by combining numerical simulations with the ductile fracture criteria. The influence of speed on the FLD was discussed.

应用数值模拟与韧性断裂准则相结合的方法预测了A15754和SPCC两种板材的成形极限图，讨论了速度对成形极限图的影响。

I bought a nice wrist watch as a surprise for my wife's birthday.

我买了一个漂亮的手表想要给我妻子的生日一个惊喜。

We don t expect students to be sponges. You can t expect to absorb everything and not have any questions to ask.

我们并不期待我们的学生是一块海绵，你没可能接收所有的东西而不提出任何问题。