锻压技术

楔形长板辊轧过程中工艺参数的模拟优化

英文标题：Simulation optimization on process parameters of wedge-shaped long board in the rolling process

分类号：TG339

出版年,卷(期):页码：2017,42(5):25-29

摘要：

为了获得综合性能良好的某7A04铝合金楔形长板辊轧件，结合其复杂的形状结构特点，提出采用整体辊轧成形的工艺方案。通过在轧辊上开设一定形状的孔型，用来成形出满足尺寸要求的轧件。并对所提出的工艺方案进行有限元模拟，在控制其他工艺参数不变的条件下，通过模拟不同温度、辊轧角速度、摩擦系数条件下辊轧力的大小变化情况，总结出不同工艺参数下辊轧力的变化规律。最终确定了合理的辊轧工艺参数为：温度

470 ℃，辊轧角速度0.1 r·s-1，摩擦系数0.7，且工艺试验得到的辊轧件与有限元模拟得到的辊轧件形状尺寸基本一致。

In order to get a wedge-shaped long board of aluminum alloy 7A04 with good comprehensive performance, a forming process of overall rolling was put forward considering its complex shape and structure characteristics. Then, a workpiece that met the size requirement was formed by piercing a shaped hole in the roller. Next, the proposed forming process was simulated by finite element software. Keeping the other process parameters unchanged, the change regulation of rolling force was summarized under different process parameters by setting different temperatures, angular velocities of rolling, coefficients of friction. Finally the reasonable process parameters of rolling was obtained as temperature of 470 ℃, angular velocity of rolling of 0.1 r·s-1,friction coefficient of 0.7. The shapes and sizes of rolling pieces obtained from finite element simulation were generally the same as that in process experiment.

基金项目：

国防基础科研项目（JSJC2013204B403）

骆无思（1990-），男，硕士研究生张治民（1956-），男，博士，博士生导师

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