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。
In bulk deformation processes such as forging, rolling, extrusion, and wire drawing there is an intentional change in the thickness or the lateral dimension of the workpiece.
大部分的变形过程如：锻造，轧制，挤压和拉丝都有同样的过程就是有意使工件的厚度或外部尺寸发生变化。
Yield strength of extrusion bar after forging process was much lower before peak aging and much higher after peak aging.
屈服强度峰时效前先锻后挤的低于直接挤压的，而峰失效后前者高于后者。
Bruce suggested: hot die steel including forging, hot extrusion and die-casting of steel.
布鲁斯建议：热作模具钢包括锻压、热挤压和压铸模具钢。
By improving the design of forging die and using press-forging and backward extrusion principle, solves the problems of 130 steering knuckle forming which can not be fully filled during forming.
通过改进预锻模膛的设计，利用镦粗成型、反挤成型的原理，有效解决了130转向节板部模锻成型时充不满的问题。
Hot forging rolling extrusion etc.
热锻、滚轧、热压等等。
A structure of extrusion die with no burr for T-shape forging was presented.
现给出了T形锻件无飞边挤压模具结构。
For improved economics and NNS (Near Net Shape) formability, encapsulation-free Powder Extrusion process and coining type Powder Forging process were developed.
为了改进经济性与近终形(NNS)成形性，开发了无包套粉末挤压工艺与精压式粉末锻造工艺。
The ultimate tensile strength and elongation of extrusion bar after forging process was much higher than that of the direct extrusion bar.
先锻后挤工艺棒材最终抗拉强度和断后延伸率高于直接挤压棒材。
Based on summing up different kinds of technological process of precision forging of spur gear, a new upsetting extrusion process and pattern die are designed.
在总结各种直齿圆柱齿轮精锻工艺的基础上，设计了一种直齿圆柱齿轮镦挤精锻工艺和模具，并进行了实验和上限模拟。
The article has described substance, characteristic, methods and die types of closed extrusion-die forging, and it has enumerated the typical die construction figures of closed extrusion die forging.
叙述了闭式挤锻的实质、特点、方式及模具型式，列举了典型闭式挤锻模具结构图。
It has elaborated the advantages replacing closed-die forging with closed extrusion-die forging.
阐述了用闭式挤锻工艺代替开式模锻的优点。文末提出了模具设计的基本要求。
It has elaborated the advantages replacing closed-die forging with closed extrusion-die forging.
阐述了用闭式挤锻工艺代替开式模锻的优点。文末提出了模具设计的基本要求。
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