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本文阐述了精冲工艺的原理及过程，分析了变形区材料的流动规律，揭示了在闭挤式精冲中工艺参数对成形质量的影响规律，并通过对精冲零件进行金相观察，显微硬度和表面残余应力分析，对精冲加工中出现的一些材料微观状态的特点和规律进行了研究。 In this paper, we elaborated the principle and process of the fine-blanking method, analyzed the flowing law of material in deformation area, revealed the influence law of process parameters on the forming quality .Through the metallographic observation, the micro hardness and surface residual stress of the fine-blanking parts are analyzed, the characteristics and rules of the material in the micro state are studied .Finally, aiming at the small module gear parts, the fine-blanking dies are manufactured and produced parts successfully, which verified the correctness of the theoretical analysis. |
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This paper elaborated the principal and process of the fine blanking. The flowing law for the material in the deformation area was anlyzed and the influence of the process parameters on the forming quality was revealed. By metallographic observation in combination with analysis of micro hardness and surface residual stress, the characteristics of the material in the fine-blanking process were investigated. 最后一句要表达什么意思？ ”验证了理论分析的正确性”verifies the theoretical analysis或者corresponds well with the theoretical analysis. |
2楼2014-03-02 21:34:36