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摘要：
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针对某发动机壳体生产过程中出现的变形不均匀问题,对其成形工艺进行了数值模拟分析,并优化成形工艺参数,改进成形模具结构,模拟对比了两种成形方案的塑性变形情况和挤压成形力。最后,进行了实验验证。结果表明,所改进的工艺既解决了出现斜台变形的问题,又降低了成形力。大大提高了模具寿命,生产数量由原来的150件提高到上千件,降低了生产成本,对于实际生产有重要的指导意义。
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Aiming at the deformation uneven problems of the engine shell in the production process,the forming process was numerical simulated to optimize the forming process parameters and improve the forming die structure and contrast the two forming plans of plastic deformation and extrusion forming force.Finally,the experimental verification was done.The results show that improving technology can solve the deformation of inclined step,reduce the forming force and greatly increase the die life.Thus production volume was increased from 150 pieces to a thousand level.The production cost is reduced and it has important guiding significance to actual production.
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基金项目：
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作者简介：
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参考文献：
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