【摘要】 6061铝合金火车上衬板锻件市场需求量大，但因其几何形状特殊复杂，其力学性能和尺寸要求苛刻，在锻造过程中容易出现裂纹、充填不好等锻造缺陷。因此，借助Deform有限元数值模拟软件，通过调整锻模飞边桥高度和宽度参数设计5种方案，模拟6061铝合金火车上衬板锻压过程成形载荷变化曲线和应力计算，依据金属流动规律及应力模拟仿真结果，优化模具飞边桥参数，从而改善合金衬板锻件成形。通过实际生产验证，优化锻模飞边桥参数后，衬板合格率由原来的88.6%提高到99.8%。更多还原

【Abstract】 There is a large market demand for the upper train lining of 6061 aluminum alloy forging, but the production is limited due to the special and complex geometry, demanding mechanical properties and size, and cracks, poor filling and other forging defects are prone to appear in the forging process. Therefore, by using the finite element numerical simulation software Deform and adjusting the height and width parameters of the forging die flash bridge, 5 schemes were designed to simulate the forming load curve and stress calculation of 6061 aluminum alloy in the forging process. According to the metal flow law and the stress simulation result, the parameters of die flash bridge were optimized, so as to improve the forming of lining forging.Through the actual production verification, after optimizing the parameters of flash bridge of forging die, the pass rate of lining was increased from 88.6% to 99.8%.更多还原