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.
介绍了挤压型材模具中，具有阶梯式凸模的分流组合模设计的方法和设计要点，用实例阐述了该类型模具的设计过程和设计思路。
Introduced design method and points of separation combined extruding die with ladder-shape punch in extruding die, stated extruding die design process and thought using practical example.
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.
分析了挤压翻边与传统翻边应力状态的不同之处，以及翻边凸模的冲头曲率半径对翻边效果的影响。
The differences of stress state between extrusion-flanging and traditional flanging, and the influences of curvature radius of burring punch on flange height were analyzed.
平锻机上的凸、凹模，铜合金挤压模，镶块，高温工作下的热剪切刀。
Tools for forge machine, die insert, extrusion mould for Cu alloy, hot shearing knives.
平锻机上的凸、凹模，铜合金挤压模，镶块，高温工作下的热剪切刀。
Tools for forge machine, die insert, extrusion mould for Cu alloy, hot shearing knives.
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