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.
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.
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.
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.
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