Development of Intelligent Incremental Forming Machine and Its Application to Metal-Flow Controlling of Sheet Metal Stretching

智能增量成形机的研制及其在板料拉伸金属流量控制中的应用

• 批准号: 09650134
• 负责人: KITAZAWA Kimiyoshi
• 金额: $ 2.5万
• 依托单位: Shinshu University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 1997
• 资助国家: 日本
• 起止时间: 1997 至 1998
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-09650134/
• 关键词: Intelligent Incremental forming; Sheet metal forming; Stretching; Laser; Small-lot production; Tool-path schedule; Metal-flow control; Precision forming; 知能インクリメンタル成形; 塑性加工; 板材成形; インクリメンタルフォーミング; CNC塑性加工機; CAF; 知能化メタルフロー制御; レーザー計測; 触覚

An incremental forming is a process in which a sheet metal is stretched to fit on a tool-envelope surface made by relative motion of a tool around the sheet metal. The incremental forming process seems to be suited to small-lot production from viewpoint of a die-less forming operation, and is also thought to be important in metal-flow control operation. Although the incremental forming posses large degrees of freedom of tool motion, an algorithm for estimating automatically an adequate tool-path schedule has not been illuminated. So as to overcome the need for estimating the adequate tool-path schedules, this study presents the development of an intelligent incremental forming machine and the proposal of an algorithm for deducing the tool-path schedule.The developed machine is equipped with a laser profilometry and a touch sense for on-line measurement of the shapes of sheet metal products. The proposed algorithm can deduce an tool-path schedule from the measured shapes of sheet metal products, by applying the techniques of neural networks. Experimental results show that the proposed algorithm is capable of deducing automatically an adequate tool-path schedule by which unfavorable deformation modes, such as wrinkles, can be avoided. Furthermore, this approach is applicable to on-line adjustments of the shapes of sheet metal products during the finishing process.

渐进成形是一种将金属板拉伸以贴合工具包络表面的过程，该工具包络表面是由工具围绕金属板的相对运动形成的。从无模成形操作的角度来看，渐进成形工艺似乎适合小批量生产，并且也被认为在金属流动控制操作中很重要。尽管渐进成形具有很大的工具运动自由度，但尚未阐明用于自动估计适当工具路径计划的算法。为了克服估计适当刀具路径计划的需要，本研究提出了一种智能渐进成形机的开发，并提出了一种推导刀具路径计划的算法。所开发的机器配备了激光轮廓测量仪和用于在线测量金属板材产品形状的触觉。所提出的算法可以通过应用神经网络技术从金属板材产品的测量形状推导出刀具路径计划。实验结果表明，该算法能够自动推导出适当的刀具路径计划，从而避免不利的变形模式，例如皱纹。此外，该方法适用于钣金产品在精加工过程中形状的在线调整。

项目成果

北澤君義・守国栄時: "レーザー計測情報をもとにした仕上げ成形アルゴリズム(薄板の知能化インクリメンタルフォーミング,第2報)" 第29回塑加春講演論文集. 487-488 (1998)

Kimiyoshi Kitazawa 和 Eiji Morikuni：“基于激光测量信息的精加工成形算法（薄板智能渐进成形，第 2 次报告）”第 29 届春季塑料成形春季讲座论文集（1998 年）。

Kimiyoshi KITAZAWA,Eiji MORIKUNI,T.NISHIBAYASHI,M.YAMADA and N.KOBAYASHI: "Development of an intelligent incremental forming machine with laser measurering system" Proc.of 48th Japan.Joint Conf.for Technology of Plasticity. 123-124 (1997)

Kimiyoshi KITAZAWA、Eiji MORIKUNI、T.NISHIBAYASHI、M.YAMADA 和 N.KOBAYASHI：“开发具有激光测量系统的智能增量成形机”第 48 届日本塑性技术联合会议论文集。

Kimiyoshi KITAZAWA and Eiji MORIKUNI: "Shape-modification algorithm for intelligent incremental sheet metal forming" Proc.of 49th Japan.Joint Conf.for Technology of Plasticity. 133-134 (1998)

Kimiyoshi KITAZAWA 和 Eiji MORIKUNI：“智能增量钣金成形的形状修改算法”Proc.of 49th Japan.Joint Conf.for Technology of Plasticity。

北澤君義・守国栄時・西林保・山田正樹・小林直美: "レーザー計測機能搭載CNCインクリメンタル成形機の開発(薄板の知能化インクリメンタルフォーミング,第1報)" 第48回塑加連講演論文集. 123-124 (1997)

Kimiyoshi Kitazawa、Eiji Morikuni、Tamotsu Nishibayashi、Masaki Yamada、Naomi Kobayashi：“配备激光测量功能的 CNC 渐进成形机的开发（薄板智能渐进成形，第 1 次报告）”第 48 届塑性会议论文集。 (1997)

Kimiyoshi KITAZAWA and Eiji MORIKUNI: "Improvement of algorithms for intelligent incremental forming of sheet metal with laser monitoring system" Proc.of 1998 Japan.Spring Conf.for Technology of Plasticity. 487-488 (1998)

Kimiyoshi KITAZAWA 和 Eiji MORIKUNI：“利用激光监控系统改进金属板材智能渐进成形的算法”Proc.of 1998 Japan.Spring Conf.for Plasticity 技术。