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A new sheet metal forming system based on the incremental punching, part 1: modeling and simulation.

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Title: A new sheet metal forming system based on the incremental punching, part 1: modeling and simulation.
Authors: Yuanxin Luo1 yxluo@mae.cuhk.edu.hk, Kai He2 Kai.he@sub.siat.ac.cn, Ruxu Du1 rdu@mae.cuhk.edu.hk
Source: International Journal of Advanced Manufacturing Technology. Nov2010, Vol. 51 Issue 5-8, p481-491. 11p. 8 Color Photographs, 5 Diagrams, 3 Graphs.
Subjects: Sheet metal working machinery, Punching (Metalwork), Metal stamping, Rapid prototyping, Finite element method
Abstract: With the increasing demand for low-volume and customer-made products, incremental sheet metal forming (ISMF), a dieless sheet metal forming process, has become one of the leading R&D topics in the industry today. We developed a new ISMF system based on incremental punching: a sheet metal is formed into the final shape by a series of small incremental punches. This paper is the first of the two papers and is focused on the theory. The theoretical model consists of two parts. First, a mechanics model is developed to predict the final shape based on the minimum energy principle. In this model, an initial geometric surface is formed by the punch positions; then based on the fact that the energy will drive the sheet metal to attain its lowest energy position, the geometry of the final shape is derived. Then, another model is developed to predict the strain and stress distributions of the part using the inverse finite element modeling (FEM), also called the one-step FEM. Several numerical examples are provided. In the second part of the two papers, the design and the building of an incremental punching machine, as well as experiment results are given. [ABSTRACT FROM AUTHOR]
Copyright of International Journal of Advanced Manufacturing Technology is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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  Data: A new sheet metal forming system based on the incremental punching, part 1: modeling and simulation.
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  Data: <searchLink fieldCode="AR" term="%22Yuanxin+Luo%22">Yuanxin Luo</searchLink><relatesTo>1</relatesTo><i> yxluo@mae.cuhk.edu.hk</i><br /><searchLink fieldCode="AR" term="%22Kai+He%22">Kai He</searchLink><relatesTo>2</relatesTo><i> Kai.he@sub.siat.ac.cn</i><br /><searchLink fieldCode="AR" term="%22Ruxu+Du%22">Ruxu Du</searchLink><relatesTo>1</relatesTo><i> rdu@mae.cuhk.edu.hk</i>
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  Data: <searchLink fieldCode="JN" term="%22International+Journal+of+Advanced+Manufacturing+Technology%22">International Journal of Advanced Manufacturing Technology</searchLink>. Nov2010, Vol. 51 Issue 5-8, p481-491. 11p. 8 Color Photographs, 5 Diagrams, 3 Graphs.
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  Data: <searchLink fieldCode="DE" term="%22Sheet+metal+working+machinery%22">Sheet metal working machinery</searchLink><br /><searchLink fieldCode="DE" term="%22Punching+%28Metalwork%29%22">Punching (Metalwork)</searchLink><br /><searchLink fieldCode="DE" term="%22Metal+stamping%22">Metal stamping</searchLink><br /><searchLink fieldCode="DE" term="%22Rapid+prototyping%22">Rapid prototyping</searchLink><br /><searchLink fieldCode="DE" term="%22Finite+element+method%22">Finite element method</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: With the increasing demand for low-volume and customer-made products, incremental sheet metal forming (ISMF), a dieless sheet metal forming process, has become one of the leading R&D topics in the industry today. We developed a new ISMF system based on incremental punching: a sheet metal is formed into the final shape by a series of small incremental punches. This paper is the first of the two papers and is focused on the theory. The theoretical model consists of two parts. First, a mechanics model is developed to predict the final shape based on the minimum energy principle. In this model, an initial geometric surface is formed by the punch positions; then based on the fact that the energy will drive the sheet metal to attain its lowest energy position, the geometry of the final shape is derived. Then, another model is developed to predict the strain and stress distributions of the part using the inverse finite element modeling (FEM), also called the one-step FEM. Several numerical examples are provided. In the second part of the two papers, the design and the building of an incremental punching machine, as well as experiment results are given. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
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  Data: <i>Copyright of International Journal of Advanced Manufacturing Technology is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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        Value: 10.1007/s00170-010-2634-2
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      – Code: eng
        Text: English
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        PageCount: 11
        StartPage: 481
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      – SubjectFull: Sheet metal working machinery
        Type: general
      – SubjectFull: Punching (Metalwork)
        Type: general
      – SubjectFull: Metal stamping
        Type: general
      – SubjectFull: Rapid prototyping
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      – SubjectFull: Finite element method
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      – TitleFull: A new sheet metal forming system based on the incremental punching, part 1: modeling and simulation.
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            NameFull: Ruxu Du
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              Text: Nov2010
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              Y: 2010
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