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Abstract：
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There are two opposite friction forces in the inner and outer surface of ironing blank, the calculation of dynamics and the choice of lubricant are depended mainly on the friction parameter. This paper advanced the testing method of the two forces and the structure of sensor, according as dynamics theory of the calculation of two-friction factor (ironing force and push force) advanced by article, the design of push force sensor is very skillful. Applying the friction factors obtained by this system to calculate the ironing force and stress of the die parts, the calculation result sameness with the testing result.
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AuthorIntro：
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Reference：
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1 熊志卿,付鹤龄,朱传祥变薄拉深摩擦因子的测定及在上下限分析中的应用机械科学与技术,1998,(3)
2 熊志卿,朱传祥,付鹤龄轴对称变薄拉深上限分析与试验研究中国机械工程,1998,(9)
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