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Abstract：
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Using the flat extrusion cylinder to extrude thin wall sheet of big width is an effective method, because it can realize the extrusion of the section steet of thin wall, big width and the bigger thickness ratio with the high specific pressure extrusion and big extrusion coefficient .Because that the flat extrusion cylinder has to work under the very bad conditions, such as high temperature, high pressure and high friction ,etc.,the stress condition is very complex and the local tensile stress is quite big. Therefore, the fracture is easily be took place on the risk section. In order to improve the extrusion cylinder design and increase the strength of the inner sleeve, based on optimizing the flat hole parameters of the cylinder, the different specific pressure and interference magnitude of the flat extrusion cylinder is analyzed and has got the equivalent effect stress value under the different conditions. The geometric parameter and structure of the optimized flat extrusion cylinder is given.
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AuthorIntro：
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Reference：
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