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应用正交试验设计提高拉深件的成形质量
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英文标题：Improving drawing part forming quality by applying orthogonal test |
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作者：王涛 陶薇 |
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单位：浙江工业大学浙西分校机电控制工程系 |
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关键词：板料成形 正交试验设计 数值模拟 |
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分类号：TG386.3 |
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出版年,卷(期):页码：2008,33(5):48-50 |
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摘要：
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破裂和起皱是拉深成形的主要缺陷,严重影响零件的表面成形质量。合理布置拉深筋是减少破裂和起皱的有效方法之一。将正交试验设计方法和有限元数值模拟相结合,以拉深筋阻力为设计变量,以板料厚度的分布为质量目标函数,对拉深筋进行优化设计。将这种方法应用到Numisheet'93的前翼子板拉深件成形中,经过优化设计的成形结果,无论是在防止破裂,还是在减少起皱方面上都得到了较好的效果,并且这种方法可以明显地减少计算次数,提高优化效率。
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Crack and wrinkle are the main defects in stamping process.The reasonable arrangement of draw beads can decrease the defects and improve the forming quality.The combination of orthogonal design of experiments method with FEM simulation was applied to optimize the arrangement of draw beads,taking drawbeads' restraining forces as design parameters and the distribution of thickness as objective function.The method was validated to simulate the drawing problem in NUMISHEET'93 case-front fender Nissan's Infiniti J30.The results show that the forming quality gets better by decreasing crack and wrinkle,and the method is efficient due to the minimized simulation cycles.
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基金项目：
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浙江省教育厅科研项目(20070894);;
校级项目(QY0621)
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作者简介：
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参考文献：
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[6]Tang Bingtao,Sun Jixian,Zhao Zhen,et al.Optimization ofdrawbead design in sheet forming using one step finite elementmethod coupled with response surface methodology[J].Adv.Manuf.Technol.,2006,31(4):229-230.
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