对专用螺栓的冷挤压工艺进行了分析和计算，并介绍冲床冷挤压模的结构。
The cold extruding process for the special bolts was analyzed and calculated. And the structure of the cold extruding die used on stamping machines was introduced.
凸模是冷挤压模具中重要的工件，其强度计算是模具设计的一个主要课题。
Cold extrusion punch is an important workpiece in punches and its strength analysis is a key component in punch design.
分析了冷挤压活塞销凸模的受力情况和主要失效形式。
The stress and the main failure form of the cold extruding die for the piston pins were analyzed.
通过分析花键冷挤压成形极限，得到花键断面缩减率和凹模形状对花键冷挤压成形时相对挤压应力的影响。
The effect of the spline reduced rate and the die sharp to the forming limit is found by analyzing the limit of the extrusion.
介绍了用于汽车零件冷挤压的任意层、不同材料组合模的统一计算模型。
This paper presents an unified computer model for calculating the com - bined dies for automotive cold extrusion parts with different materials and structure.
研究了凸模形状、结构- 工艺因素、压应力和拉应力对冷挤压凸模耐用度的影响。
This paper studies the influence of both punch shape and constructivetechnological factors as well as the compressive and tensile stresses on the endurance of cold extrusion punches.
本文对花键整体凹模正挤工艺、多辊冷挤压成形工艺、冷滚轧成形工艺、平板齿条搓挤工艺等花键冷成形技术和特点进行介绍。
This article introduced some methods of spline cold forming technology: forward die extrusion die forming, mud-rolls die extrusion forming, cold rolling forming and plate type cold rolling forming.
利用这两种模型分别计算了轴承套圈冷挤压组合凹模的预应力，并同拉美公式的计算结果进行了分析比较。
The prestressing force in combined dies to be used for cold extrusion of bearing outer race by the two mathematical models is calculated and compared with the results obtained by Lame formulae.
明确指出妨碍活塞销冷挤压技术在国内推广应用的关键因素是其冷挤压凸模的寿命太短。
It is pointed that application and dissemination's key factor of piston pin's cold extruding technique in China is that working life of piston pin's cold extruding punch is too low.
分析了冷挤压毛坯质量对模具的工作部分（上、下凸模和凹模）的损坏形式和寿命的影响，指出了保证毛坯质量应采取的措施。
The effect of blank quality in cold extrusion on the damage way and service life of working parts (mould and die)is analysed, and some countermeasures presented.
针对敞开式压缩模在生产中出现的问题，对工件进行分析研究，提出新的工艺方法，以冷挤压工艺取代冷冲压工艺。
On the problem of open compression die emerged in production, the part is analyzed and a new processing method is put forward. Cold punching technology is replaced by cold extrusion technology.
冷挤压组合凹模的失效主要是凹模内腔疲劳裂纹的出现，在模具设计的前期较为准确的估算出组合凹模的疲劳寿命是模具优化设计的前提。
The stress analysis of combined die is a very complicated problem, and the exact analysis on it is a key to solve the mould life.
冷挤压组合凹模的失效主要是凹模内腔疲劳裂纹的出现，在模具设计的前期较为准确的估算出组合凹模的疲劳寿命是模具优化设计的前提。
The stress analysis of combined die is a very complicated problem, and the exact analysis on it is a key to solve the mould life.
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