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Abstract：
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Non-balance forming of top boss and bottom boss and greater load existed while spur gears with large modulus and high boss were formed by active die-trapeziform groove divided flow method.Based on uniform thinking,the improved die structure was put forward.The metal flowing into bottom boss was constrained by a hemisphere with 15mm in diameter,which was located on the bottom die.The numerical simulation of the forming of gears was demonstrated by three-dimension simulating software,then the result could be obtained with the analysis of strain,stress and the load-displacement curve of the material,which the improved die structure was in favor of balance forming and decreasing the forming force.The results of simulation and analysis were verified by the physics experiment.
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Funds：
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安徽省二00八科技攻关计划面上项目(08010202132)
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AuthorIntro：
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Reference：
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