模锻

The technological process of the new and the old die forging for claw hammer , the action principle of the movable die and its die structure,and the advantages replacing common die forging with the flashless precision die forging have been described.

叙述了羊角锤新旧模锻工艺过程，介绍了活动模具的动作原理及模具结构，阐述了用闭式精密模锻工艺代替普通模锻的优点，提出了模具设计的基本要求，指出了目前使用活动模具闭式精密模锻中所存在的问

There are many factors influencing hot die forging quality of turbine blade ,such as material property,billet outline and size,die forging method and plan,die cavity structure and drop forging equipment,etc.

有许多因素影响汽轮机叶片的模锻生产质量，例如，材料性质、毛坯外形及尺寸、模锻方式及工艺、模腔结构与锻压设备等。

According to the viewpoint that the thinnest part of the deforming metal is usually the important and decisive part of the deforming force , the influence of the bridge size of the fash slot on the die forming and the deforming force is analyzed.

通过坯料在模锻型腔中的压挤成形过程，模拟开式模锻中飞边槽对金属充满型腔的作用，根据"变形金属最薄的部分常常是决定变形力的重要部分"这一观点，分析和探讨飞边槽桥部尺寸对模锻成形及变形力的影响，提出对高度较小、直径较大的齿轮以及复杂模锻件设计方法的改进，以提高该类锻件的模具寿命和生产率。

In view of backward situations of some large die2forgingwater p ress control system, a new control system of 100000 ton multi2ram die2forgingwater p ress based on S72300 PLC was designed and developed.

针对目前一些大型模锻水压机自动控制系统落后的现状，设计并开发了基于PLC S7 - 300的一万吨多向模锻水压机控制系统。

In this paper, the basic theory and work principle of cellular automata were introduced concisely. The influence of strain-rate and temperature on the number of nucleation and the mean size of R-grain, as well as the influence of cooling on ultimate microstructure of blade after forging finished off were considered. The microstructure evolution was simulated successful based on the DEFORM-3D. The simulated results agree well with growth kinetics of dynamic recrystallization of classical theory and physical experiment.

文章介绍了元胞自动机模型的理论基础和工作原理，并根据叶片模锻成形的特点，综合考虑应变速率、变形温度对再结晶形核率与平均晶粒尺寸，以及终锻冷却对叶片锻件最终组织的影响，在DEFORM-3D平台上，成功地仿真了叶片模锻过程中的微观组织演变，得到了同经典理论分析和物理实验结果吻合较好的动态再结晶动力学特征。

And we mention the relationship between the four parameters and temperature in order to show the relationship between its change and stress. In the second place, with making use of the little distortion elasticity theory and diathermanous theory, the method that we study the heat stress , force stress and combined stress in the forging process is educed. And then we will find out the relationship between the four parameters and combinedstress of the forging die.

文中首先分别说明弹性模量、线膨胀系数、导热系数和比热容的定义，并且引出这四个物理性能参数与温度的关系即它们随温度变化的规律，为进一步说明模锻过程中这四个物理性能参数随温度发生变化是如何影响锻模应力场提供了理论依据。

A threaded shank portion positioned distal to the smooth shank portion includes a male thread which is sufficiently strong to have a swage collar swaged onto it.

位于光滑轴部分远侧的螺纹轴部分(38)包括一个外螺纹，其强度足以让一个模锻套环(46)能够被模锻到其上。

For example, a selected amount of a protrusion (87) formed by swaging is cut away, the tube material is fused together at a seam (89) formed by the swaging, and the closed distal end of the tubular member (80) is formed into a selected shape.

例如，切去由模锻形成的突出部分(87)的一个所选择的量；在模锻形成的缝(89)处，使管件材料熔合在一起；和将该管件(80)的封闭远端作成所选择的形状。

The production process includes hammer die forging,pressure forging, roll forging forming,and precision rolling-die forging composite technology.

前轴是汽车中的大型重要锻件，其生产工艺可归纳为锤上模锻、热模锻压力机上模锻、成形辊锻、精辊-模锻复合工艺等几种类型。

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。

And Pharaoh spoke to Joseph, saying, Your father and your brothers have come to you.

47：5 法老对约瑟说，你父亲和你弟兄们到你这里来了。

Additionally, the approximate flattening of surface strip using lines linking midpoints on perpendicular lines between geodesic curves and the unconditional extreme value method are discussed.

提出了用测地线方程、曲面上两点间短程线来计算膜结构曲面测地线的方法，同时，采用测地线间垂线的中点连线和用无约束极值法进行空间条状曲面近似展开的分析。