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摘要：
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铝合金轧制成形过程中，容易出现材料粘敷在导板上、坯料卡入导板与模具的间隙中等异常轧制现象，使楔横轧机导板机构产生塑性变形而失效或损坏。由于修复或更换导板机构周期较长，因此，为保护导板机构、缩短设备维修周期、提高设备及生产线的效率和稳定性，针对铝合金专用楔横轧机的导板机构，进行了数值模拟和设计优化，采用数值模拟软件Deform-3D,对坯料挤入导板的过程进行了有限元分析，模拟出坯料失转时的反作用力，提出了使用安全螺栓保护导板机构的方法。经实际验证，该方法简单有效，在保护导板机构的同时，可以用于对轧制异常情况进行检测并及时排除以恢复生产，对于楔横轧机导板机构的设计和优化具有一定的指导意义。
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During the rolling process of aluminum alloy, it was easy to have some rolling anomalies such as the material sticking on the guide plate and the billet caught in the clearance between guide plate and die to cause plastic deformation and failure or damage of guide mechanism for cross wedge rolling machine. Due to the long period of repairing or replacing guide mechanism, for protecting the guide mechanism, shortening the maintenance cycle of machine and improving the efficiency and stability of machine and production line, the numerical simulation and design optimization were conducted for the guide mechanism exclusively used for the aluminum alloy cross wedge rolling machine, and the process of billet squeezing into the guide plate was analyzed by the numerical simulation software Deform-3D. Then, the counteracting force when the billet stopped rotating was simulated, and the method for protecting the guide mechanism by safety bolt was put forward. The verified experiment shows that the method is simple and effective. While protecting the guide mechanism, it can detect and timely eliminate the rolling anomalies to resume production and has a certain guiding significance for the design and optimization of the guide mechanism for cross wedge rolling machine.
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基金项目：
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作者简介：
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袁红霞（1981-），女，硕士，工程师，E-mail：heliciayuan@163.com；通讯作者：石一磬（1982-），男，学士，高级工程师，E-mail：shiyiqing1005@163.com
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