Tool shape design in V-bending and channel forming processes by inverse analysis of springback.
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| Title: | Tool shape design in V-bending and channel forming processes by inverse analysis of springback. |
|---|---|
| Authors: | Behrouzi, A.1 (AUTHOR) arash_behrouzi@yahoo.com, Mollaei Dariani, B.1 (AUTHOR), Shakeri, M.1 (AUTHOR) |
| Source: | Inverse Problems in Science & Engineering. Jun2010, Vol. 18 Issue 4, p465-480. 16p. 2 Black and White Photographs, 6 Diagrams, 5 Graphs. |
| Subjects: | Tool design & construction, Sheet metal working machinery, Algorithms, Geometry, Errors |
| Abstract: | Elastic recovery of a formed part in unloading, known as springback, causes shape errors in the final product of sheet metal forming processes. Several approaches have been proposed for the analysis of springback and compensating its error. The springback occurs at the last step of process and the final geometry of the work piece can be obtained at the end of direct process modelling. In this article, an algorithm for inverse springback modelling is presented. In this approach, required conditions for the inverse movement of final product towards the end of the loading state are prepared. Having the product geometry at the end of the loading, the geometry of die parts can be designed for the production of a target shape. For this inverse movement in FE modelling, the optimum constrained node and balanced contact forces are proposed in this algorithm. The presented approach is verified for symmetric and asymmetric bending processes. The results have shown that this approach can model symmetric and asymmetric processes inversely with tight tolerances. An optimization algorithm for compensating springback error and iterative tool design is presented based on inverse modelling. This algorithm is verified on symmetric V-bending process and its convergence rate is compared to the direct trial trend. The inverse approach shows more convergence rate in this comparison. Performing an experimental test on symmetric V-bending and asymmetric bending processes, the accuracy of the presented algorithms is investigated. The results show that the presented algorithms are efficient and accurate in both cases. [ABSTRACT FROM AUTHOR] |
| Copyright of Inverse Problems in Science & Engineering is the property of Taylor & Francis Ltd 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.) | |
| Database: | Engineering Source |
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| Header | DbId: egs DbLabel: Engineering Source An: 50442039 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: Tool shape design in V-bending and channel forming processes by inverse analysis of springback. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Behrouzi%2C+A%2E%22">Behrouzi, A.</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> arash_behrouzi@yahoo.com</i><br /><searchLink fieldCode="AR" term="%22Mollaei+Dariani%2C+B%2E%22">Mollaei Dariani, B.</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Shakeri%2C+M%2E%22">Shakeri, M.</searchLink><relatesTo>1</relatesTo> (AUTHOR) – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Inverse+Problems+in+Science+%26+Engineering%22">Inverse Problems in Science & Engineering</searchLink>. Jun2010, Vol. 18 Issue 4, p465-480. 16p. 2 Black and White Photographs, 6 Diagrams, 5 Graphs. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Tool+design+%26+construction%22">Tool design & construction</searchLink><br /><searchLink fieldCode="DE" term="%22Sheet+metal+working+machinery%22">Sheet metal working machinery</searchLink><br /><searchLink fieldCode="DE" term="%22Algorithms%22">Algorithms</searchLink><br /><searchLink fieldCode="DE" term="%22Geometry%22">Geometry</searchLink><br /><searchLink fieldCode="DE" term="%22Errors%22">Errors</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: Elastic recovery of a formed part in unloading, known as springback, causes shape errors in the final product of sheet metal forming processes. Several approaches have been proposed for the analysis of springback and compensating its error. The springback occurs at the last step of process and the final geometry of the work piece can be obtained at the end of direct process modelling. In this article, an algorithm for inverse springback modelling is presented. In this approach, required conditions for the inverse movement of final product towards the end of the loading state are prepared. Having the product geometry at the end of the loading, the geometry of die parts can be designed for the production of a target shape. For this inverse movement in FE modelling, the optimum constrained node and balanced contact forces are proposed in this algorithm. The presented approach is verified for symmetric and asymmetric bending processes. The results have shown that this approach can model symmetric and asymmetric processes inversely with tight tolerances. An optimization algorithm for compensating springback error and iterative tool design is presented based on inverse modelling. This algorithm is verified on symmetric V-bending process and its convergence rate is compared to the direct trial trend. The inverse approach shows more convergence rate in this comparison. Performing an experimental test on symmetric V-bending and asymmetric bending processes, the accuracy of the presented algorithms is investigated. The results show that the presented algorithms are efficient and accurate in both cases. [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Inverse Problems in Science & Engineering is the property of Taylor & Francis Ltd 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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| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.1080/17415971003624355 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 16 StartPage: 465 Subjects: – SubjectFull: Tool design & construction Type: general – SubjectFull: Sheet metal working machinery Type: general – SubjectFull: Algorithms Type: general – SubjectFull: Geometry Type: general – SubjectFull: Errors Type: general Titles: – TitleFull: Tool shape design in V-bending and channel forming processes by inverse analysis of springback. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Behrouzi, A. – PersonEntity: Name: NameFull: Mollaei Dariani, B. – PersonEntity: Name: NameFull: Shakeri, M. IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 06 Text: Jun2010 Type: published Y: 2010 Identifiers: – Type: issn-print Value: 17415977 Numbering: – Type: volume Value: 18 – Type: issue Value: 4 Titles: – TitleFull: Inverse Problems in Science & Engineering Type: main |
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