首页|6005A铝合金空心型材压弯工艺成形特性研究

6005A铝合金空心型材压弯工艺成形特性研究

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采用有限元数值模拟技术,对6005A铝合金空心型材压弯过程进行系统研究,定量研究了型材壁厚、模具辊轮直径、辊轮间距和型材高宽比对型材压弯成形质量的影响.采用中心复合法进行了试验设计,并通过灵敏度分析得到了各工艺参数对型材压弯回弹的影响程度的大小.结果表明,在所选取的工艺参数中,型材壁厚对成形最大减薄率、最小减薄率和截面畸变的影响最大;型材高宽比对型材回弹影响最大.采用二阶响应面建立了各变量与各成形性能之间的定量关系.研究结果可为铝合金空心型材压弯成形质量的控制提供参考.
Research on forming characteristics of 6005A aluminum alloy hollow profiles in press bending
Finite element simulation was conducted to systematically study the wall thick-ness variation,cross-section distortion and springback during press bending of 6005A alumi-num alloy hollow profiles.The influence of profile wall thickness,die roller diameter,roller spacing,and profile aspect ratio on the bending quality was quantitatively studied.The cen-tral composite method was used for experimental design,and the influence degree of various process parameters on the springback of profile bending was obtained through sensitivity anal-ysis.The results show that among the selected process parameters,the wall thickness of pro-file has the greatest impact on the maximum thinning rate,minimum thinning rate,and cross-section distortion during bending.The aspect ratio of profile has the greatest impact on the springback.The quantitative relationship between each variable and each forming per-formance was established using second-order response surface methodology.The research re-sults can provide certain guiding significance for controlling the forming quality of hollow alu-minum profile in bending.

6005A aluminum alloy hollow profilebendingforming qualitynumerical simulationexperimental design method

易杰、李兆昕、朱圣博、王熙民、刘志文

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湖南省精密零件数控加工工艺数字化工程技术研究中心,湖南长沙 410208

湖南工业职业技术学院,湖南长沙 410208

复杂薄壁精密零件智能柔性加工技术湖南省工程研究中心,湖南长沙 410208

南华大学机械工程学院,湖南衡阳 410082

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6005A铝合金空心型材 压弯 成形质量 数值模拟 试验设计法

国家自然科学基金项目湖南省自然科学基金项目湖南省自然科学基金项目湖南省大学生创新创业训练项目湖南省大学生创新创业训练项目

520052442023JJ601932021JJ305732022X10555005D202305201416254546

2024

10.13979/j.1007-7235.2024.09.008

轻合金加工技术
中国有色金属加工工业协会轻金属分会

轻合金加工技术

影响因子：0.31
ISSN：1007-7235
年,卷(期)：2024.52(9)