The key step in flashless forging is to optimize the design of preform die shape.
锻造过程实现净形和近净形制造最关键的一点是对预锻模进行优化设计。
The sensitivity analysis based die shape design method provides an effective and qua...
为圆盘锻件的纯形状锻造模具设计提供了一种定量分析方法。
The invention relates to a method for changing die shape when overall dimension of a forming die or sample die changes.
本发明涉及一种对成型模或样件模具在外形尺寸发生变化时的一 种改变模具外形的方法。
The optimization procedure of preform die shape is given. The sensitivity of nodal velocity and temperature with respect to design variable is developed.
给出了模具形状优化设计步骤，推导了速度灵敏度方程和温度灵敏度方程。
The forming defect of the bend forging and the influence of blank and die shape parameters are studied. All of these provide theoretical basis for practice.
分析了弯曲成形中出现的主要缺陷，提出了毛坯形状和尺寸、模具参数对成形质量的影响规律，为实际生产提供了理论依据。
This method can realize net shape forging by optimizing preform die shape. Flashless final forging with complete die fill and without folding-over defect can be obtained.
该方法通过优化设计预成形模具形状，可实现精形终锻，得到无飞边、完全充满型腔和无折叠的终锻件。
Numerical simulation technique has become the important verifying tools in extrusion and forging die shape design. It helps designers to know the design parameters space better.
数值仿真技术已成为挤压锻造模具设计中的重要评价手段，有助于设计人员更好的理解设计空间。
An optimization method for preform die shape in non-isothermal metal forming using plastic finite element method, sensitivity analysis and engineering optimization algorithm is presented.
采用塑性有限元、灵敏度分析和工程优化算法相结合的方法，对非等温成形过程中预锻模具形状进行了优化设计。
A piece of hot metal sufficient to slightly overfill the die shape is placed in the bottom die, and the top die is forced against it, so that the metal takes the internal shape of the die.
将一块大小足以充填模腔并能稍有溢出的加热金属放入底模，并将顶模加压合拢，这块金属便获得该模腔的形状。
Because of their body shape, seahorses are rather inept swimmers and can easily die of exhaustion when caught in storm-roiled seas.
因为它们的身体形状，海马是糟糕的游泳者，它们遇上风暴的时候很容易力竭而死。
At the same time the effect of eccentricity ratio, speed ratio and the material, thickness of sub, geometry shape of polished die on removing efficiency are studied.
研究了偏心率和转速比对去除效率的影响，与此同时研究了抛光模材料、抛光模胶层厚度、抛光模直径以及几何形状与去除效率的关系。
Punch press: machine tool that changes the size or shape of a piece of material usually sheet metal by applying pressure to a die in which the workpiece is held.
冲床：将压力加到装有工件的模具上，以改变一片材料，通常是金属片的大小和形状的机床。
Cold compaction ensures that the as-compacted, or "green", component is dimensionally very accurate, as it is moulded precisely to the size and shape of the die.
冷挤压能保证被压制或“未加工”的零件尺寸十分精确，因为它被精确地按模具的尺寸和形状成型。
Constitute the stamping process card for production. Attend to make and assess the stamping shape process. Complete the die project with the die engineer.
编制生产使用冲压工艺卡。参与制件成型工艺评审和制作，与模具工程师共同协作完成模具项目。
This produces a fully dense component with the shape of the forging die and appropriate mechanical properties.
这能生产具有锻模形状和合适机械性能的充分致密零件。
It solves the special claims of shape and precision of die spare parts.
解决了模具零件在形状和精度方面的特殊要求。
The design of die structure has much influence on shape dimension and precision of the formed crank-arm with a non elliptical section.
对于非椭圆截面曲臂的大型曲轴，其模具结构设计对曲轴成形后的形状尺寸精度影响极大。
Because the shape of blade is complex and the forming precision is very high, the die making needs more high precision.
由于叶片形状复杂，零件成形精度高，因此，对于叶片模具的制造需要更高的精度。
The life of a section extrusion die is closely related with the die construction shape and its size.
型材挤压模具寿命的高低，与模具的结构形状及几何尺寸有很大关系。
By bulging forming technology analysis of color kinescope shaded cover, die structure and main parts designs are introduced. Punch surface shape is also designed by surface equations.
对彩管荫罩零件进行张拉成形工艺分析，介绍了模具结构及主要零件设计，并运用曲面方程进行凸模曲面形状设计。
The shape of the die decides the shape of the extruded plastic-a fibre, perhaps, for use in nylon thread, or a tube.
模口的形状决定了挤出塑料产品的型状，如制尼龙绳用的纤维丝或塑料管。
The shape of the die decides the shape of the extruded plastic-a fibre, perhaps, for use in nylon thread, or a tube .
模口的形状决定了挤出塑料产品的型状，如制尼龙绳用的纤维丝或塑料管。
The two Shus combine together to shape up as a human. When the human die, they separate.
此二叔合而为一人，当此人死后他们俩也就分开了。
A processing plan of progressive die stamping for chain element was established according to the shape, dimensions of the part and requirements for production.
根据链节零件的形状、尺寸及其生产要求，制定了级进模冲压成形工艺方案。
Aimed at the difficulties in the bending forming of punching parts, the bending die with dual-punch is designed, the complex shape of this part is once formed by the ordinal action of dual-punch.
针对该冲压件弯曲成形难的问题，设计了双凸模弯曲模，通过双凸模的依次动作可一次成形该零件的复杂形状。
Three modeling methods and NC auto programming based on shape characteristics of cavity of rolling forging die are discussed.
根据滚压模型腔的形状特点，介绍了三种不同的建模方法以及数控加工自动编程过程。
The die casting-forging processing is suitable for producing automobile parts with complicated shape and high strength as well as other structure components.
铸锻双控成形工艺主要适合生产形状复杂和高强度要求的汽车零部件和其他结构件。
The die hammers the diameter and causes the metal to flow inward causing the outer diameter of the tube or the rod to take the shape of the die.
锻模锤击横断面使金属向内流动导致圆管或圆棒的外径变为锻模的形状。
The die hammers the diameter and causes the metal to flow inward causing the outer diameter of the tube or the rod to take the shape of the die.
锻模锤击横断面使金属向内流动导致圆管或圆棒的外径变为锻模的形状。
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