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摘要：
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利用FORGE-3D有限元模拟软件对LED散热器的冷锻成形过程进行模拟与分析，得到了1050铝合金零件在冷锻成形过程中的成形载荷与模具磨损变化规律。基于数值模拟和正交试验法，分析了摩擦因数、桥口圆角半径、挤压速度和锻件飞边厚度对成形载荷和模具磨损的影响规律。结果表明：4组因素中，飞边厚度对成形载荷的影响最大，挤压速度对模具磨损的影响最大。综合考虑4组因素的模拟结果确定了最优方案，即摩擦因数为0.06、挤压速度为5 mm·s-1、飞边厚度为0.6 mm、桥口圆角半径为1.5 mm。该研究为大功率LED散热器零件的实际生产及其相似零件的生产提供了参考。
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The cold forging process of LED radiator was simulated and analyzed by software FORGE-3D, and the change laws of forming loads and mold wear were obtained in the cold forging process for 1050 aluminum alloy parts. Based on numerical simulation and orthogonal experiment, the influences of friction factor, fillet radius of bridge, extrusion speed and flash thickness of forgings on the forming loads and mold wear were analyzed. The results show that among the four factors, the flash thickness has the greatest influence on the forming loads, and the extrusion speed has the greatest influence on the mold wear. Considering the simulation results of four factors comprehensively, the optimal scheme is determined with the friction factor of 0.06, the extrusion speed of 5 mm·s-1, the flash thickness of 0.6 mm, the fillet radius of bridge of 1.5 mm, and the above study provides a reference for practical production of high-power LED radiator parts and similar parts.
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基金项目：
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02专项（2017ZX02408003）
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作者简介：
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朱红亮（1992-），男，硕士研究生，E-mail：zhuhlzgbl@163.com；通讯作者：陈学文（1970-），男，博士后，特聘教授，E-mail：chenxwdavid@163.com
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