锻压技术

5A06铝合金带筋薄板件挤压缺陷的模拟分析及优化

英文标题：Simulation analysis and optimization of extrusion defects for aluminum alloy 5A06 sheet with rib

作者：梁柱李国俊张治民马晓虎吴莹

分类号：TG376

出版年,卷(期):页码：2016,41(2):51-57

摘要：

本文研究的铝合金大型带筋薄板件是某产品上的零部件，零件属于形状复杂、体积分配不均匀且截面积不对称的构件。通过对5A06铝合金大型带筋薄板件的等温挤压成形工艺方案进行研究，针对零件在成形过程中存在的缺陷，对模具结构进行优化，最终制定出合理的成形工艺方案，同时对其成形工艺参数进行优化。在最终确定的优化方案中，凸模结构中共加设了3类凸台：高8 mm的凸台以及高分别为5和10 mm、宽为10 mm的边缘下垂；凹模相应位置也增设了高度分别为2和3 mm的凸台，凹模右侧凸台两侧面夹角由原来45°改为30°，同时上边缘倒角为10°。

For the large ribbed 5A06 aluminum alloy sheet part with complex shape, uneven volume distribution and cross-sectional area asymmetry, the die structure was optimized and a reasonable forming process scheme was determined based on the study of isothermal extrusion process scheme and the forming defects for large aluminum alloy 5A06 sheet with rib. At the same time, the technological parameters were optimized. In the final scheme, three kinds of bosses were added to the design of punch structure: boss with 8 mm high and the edge sagging with 5, 10 mm high and 10 mm wide, and the corresponding positions of dies were also added bosses with 2 and 3 mm high respectively. Furthermore, the angle between two sides of the boss on the right side of the die was changed from the original 45° into 30°, while the upper edge chamfer was 10°。

基金项目：

山西省自然科学基金资助项目（2013011022-5）

梁柱（1991-），男，硕士研究生

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