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A method for simultaneous optimization of blank shape and forming tool geometry in sheet metal forming simulations
ID Starman, Bojan (Author), ID Cafuta, Gašper (Author), ID Mole, Nikolaj (Author)

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Abstract
This paper presents a numerical method for simultaneous optimization of blank shape and forming tool geometry in three-dimensional sheet metal forming operations. The proposed iterative procedure enables the manufacturing of sheet metal products with geometry fitting within specific tolerances (surface and edge deviations less than 0.5 or 1.0 mm, respectively) that prescribe the maximum allowable deviation between the simulated and desired geometry. Moreover, the edge geometry of the product is affected by the shape of the blank and by an additional trimming phase after the forming process. The influences of sheet metal thinning, edge geometry, and springback after forming and trimming are considered throughout the blank and tool optimization process. It is demonstrated that the procedure effectively optimizes the tool and blank shape within seven iterations without unexpected convergence oscillations. Finally, the procedure thus developed is experimentally validated on an automobile product with elaborated design and geometry which prone to large springback amounts owning to complex-phase advanced high strength steel material selection.

Language:English
Keywords:sheet metal forming, blank shape, tool design, optimisation, experimental validation
Work type:Article
Typology:1.01 - Original Scientific Article
Organization:FS - Faculty of Mechanical Engineering
Publication status:Published
Publication version:Version of Record
Year:2021
Number of pages:19 str.
Numbering:Vol. 11, iss. 4, art. 544
PID:20.500.12556/RUL-135363 This link opens in a new window
UDC:519.8:621.98.04(045)
ISSN on article:2075-4701
DOI:10.3390/met11040544 This link opens in a new window
COBISS.SI-ID:57420803 This link opens in a new window
Publication date in RUL:09.03.2022
Views:617
Downloads:77
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Record is a part of a journal

Title:Metals
Shortened title:Metals
Publisher:MDPI
ISSN:2075-4701
COBISS.SI-ID:15976214 This link opens in a new window

Licences

License:CC BY 4.0, Creative Commons Attribution 4.0 International
Link:http://creativecommons.org/licenses/by/4.0/
Description:This is the standard Creative Commons license that gives others maximum freedom to do what they want with the work as long as they credit the author.
Licensing start date:01.04.2021

Secondary language

Language:Slovenian
Keywords:preoblikovanje pločevine, platina, zasnova orodja, optimizacija, eksperimentalna validacija

Projects

Funder:ARRS - Agencija za raziskovalno dejavnost Republike Slovenije
Project number:P2-0263
Name:Mehanika v tehniki

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