锤锻中常用的开式模锻与闭式模锻是有区别的。
A distinction may be made between open-die forging, usually in the form of hammer forging, and closed-die forging.
该模架组装方便，适用于齿轮坯闭式模锻，并且具有通用性。
This die carrier is with convenient assembly, universal purpose property suitable for gear billet closed forming.
运用特征技术，开发了一套齿轮坯的闭式模锻CAPP系统。
Using the feature technique, a set of flash less die forging CAPP system for gear blanks is developed.
最后，给出带盲孔的轴对称锻件的闭式模锻工艺设计的一般性指针。
At the end, some general instructions for the process design of flash die forging of axisymmetric gear blanks with blind hole were suggested.
而且，对于闭式模锻工艺而言，坯料尺寸直接影响模锻工艺的顺利进行。
And as for the closed die forging, billet size will affect the process directly.
分析了粉末烧结材料镦粗和复压工艺的致密效果，提出了闭式模锻工艺设计原则。
The densification effects of upsetting and repressing are compared, and a technology design principle for closed die forging is suggested .
叙述了闭式模锻工艺的实质、特点、方式及模具型式，列举了典型的闭式模具结构图。
The article has described substance, characteristic, methods and die types of flasless die forging technology, and it has list the typical die construction figures of flasless die forging.
对于无飞边闭式模锻，由于各种因素的影响，很难使坯料体积与闭式模膛的容积恰好相等。
It's very difficult to make the volume of blank material and bulk of closed cavity equal because of all kinds of influence of factors for no-draft closed-forging.
闭式模锻能生产高度复杂和精确的零件，而且表面光洁度要比不用闭式锻模的更传统方法好。
Closed-die forging can produce components of greater complexity and accuracy, with a better surface finish than the more traditional methods not using closed dies.
结果表明，闭式精密模锻工艺的新方法是十分有效的。
The results have shown that the new way of precision die forging is very efficient.
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.
针对螺旋伞齿轮开式模锻存在的问题，提出了螺旋伞齿轮闭式精锻新工艺及其模具结构。
The problems of open-die forging for spiral bevel gears are described. A new process and new structure principle of die for closed precision die forging of spiral bevel gears are presented.
针对螺旋伞齿轮开式模锻存在的问题，提出了螺旋伞齿轮闭式精锻新工艺及其模具结构。
The problems of open-die forging for spiral bevel gears are described. A new process and new structure principle of die for closed precision die forging of spiral bevel gears are presented.
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