The densification effects of upsetting and repressing are compared, and a technology design principle for closed die forging is suggested .
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 research results will be significant for extending the engineering application of cross wedge rolling, especially for the application of forming blank for closed die forging.
研究结果对于扩大楔横轧工艺的应用有实际意义，尤其是对于锻件制坯成形的应用，将起到良好的作用。
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.
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。
In powder forging an as-pressed component is usually heated to a forging temperature significantly below the usual sintering temperature of the material and then forged in a closed die.
在粉末锻造中，压制零件一般加热到远低于该材料通常烧结温度的锻造温度，然后在闭模中锻造。
The technology of precision roll forging by closed die groove of machine driven plough share are researched systematically.
系统研究了机引犁铧闭式型槽精密辊锻技术。
The differential gauge forging can be made by general open die or horizontal split precision closed die.
差压计锻件可以采用普通开式模锻成形和可分凹模多向闭塞精密模锻成形。
Web thickness is one of the important parameters in Closed-die forging process, which has an effect on forming force of die forging and material consumption.
连皮厚度是开式模锻工艺参数中的一个重要参量，它对模锻变形力和材料的消耗有很大的影响。
By virtue of modern metallograph analyse technology, the size of grain, hardness and residual stress of bevel gear by closed-die cold forging is studied.
借助现代冶金分析技术对闭塞冷锻行星齿轮的晶粒尺寸、硬度变化和残余应力分布规律进行了研究。
This paper introduces the application of double locking clippers for a closed forging die to solving the problems Such as getting stuck and fatigue fissure caused by a gear forging die.
针对齿轮锻模极易发生卡模和断裂失效的情况，提出对闭式锻模采用双锁扣的结构方案。
A typical die set for closed-die forging has been designed, of which the core rigid close-die mechanism has a good property.
设计了伞齿轮完全闭塞式锻造的模架，核心部位刚性锁模机构具有良好的闭模特性。
A distinction may be made between open-die forging, usually in the form of hammer forging, and closed-die forging.
锤锻中常用的开式模锻与闭式模锻是有区别的。
Unsuccessful corner filling and excessive deformation force are the main limitations of classical cold closed-die forging of straight spur gear.
齿形充填不满和成形力过高是齿轮闭式锻造典型方案的缺陷。
Study on microstructure and properties of closed-die cold forging of bevel gear used in case of automobile differential;
借助现代冶金分析技术对闭塞冷锻行星齿轮的晶粒尺寸、硬度变化和残余应力分布规律进行了研究。
The numerical simulation method was applied to analyze the cold closed-die forging process of car used differential satellite gear.
借助现代冶金分析技术对闭塞冷锻行星齿轮的晶粒尺寸、硬度变化和残余应力分布规律进行了研究。
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。
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。
In conventional closed-die forging of slide forks, the material waste of the flash is serious and the geometrical tolerance is large.
滑动叉传统上采用开式模锻工艺生产，飞边大，材料浪费严重而且尺寸精度差。
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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