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| 板料渐进成形工艺等高线图生成方法的研究 |
| Study on the Method to Generate Contour Figure for Incremental Sheet Metal Forming Technology |
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| DOI：10.3969/j.issn.1671-5322.2009.03.005 |
| 中文关键词: 渐进成形 等高线图 Bézier曲面 Matlab |
| 英文关键词: incremental forming the contour figure Bézier Curved surface Matlab |
| 基金项目:江苏省自然科学基金 |
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| 中文摘要: |
| 板料数字化渐进成形工艺可以通过数控渐进成形机床加工出成形极限较大、形状复杂的板材零件,在航空航天、汽车和民用产品的小批量钣金件加工方面具有广泛的应用前景.如何生成成形零件的等高线图是该工艺的关键技术.对板料渐进成形工艺等高线图的生成方法进行了研究,提出一种基于Matlab拟合Bézier曲面并快速生成等高线图的方法.对理论抛物面和飞机翼面的仿真研究表明,提出的等高线图的生成方法,工程精度较高、算法简单.计算速度快,适合在板材数字化渐进成形工艺中推广应用. |
| 英文摘要: |
| The CNC incremental forming machine could process the parts of greater high level of forming limit and complex shape by appling the digital incremental sheet metal forming technology.It has wide applications for small-volume sheet metal processing in the aerospace,automotive and civilian products.The key program of the process is how to the generate contour figure of a forming part.The method to generate contour figure has been researched for incremental sheet metal forming technology.A method to generate quickly contour figure is put forward based on Bézier curved surface,the contour figures of theoretical parabolic surface and aircraft wing surface are gained by the method which are served as two samples.The results show that the confour figure method has higher engineering accuracy,the simple and faster algorithm and could be applied widely in the digital incremental sheet metal forming technology. |
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