Data-Driven Compensation for Bulk Formed Parts Based on Material Point Tracking

authored by: Daniel Maier, Christoph Hartmann, Michael Till, Christoph Büdenbender, Bernd Arno Behrens, Wolfram Volk
Abstract: Currently, common inefficient trial-and-error procedures are used in designing bulk forming dies. Numerous iterations, consisting of numerical simulations and subsequent real tests, are needed to achieve accurate parts. During the compensation cycles, manual redesign in CAD environments is necessary to transform discrete data into parametric descriptions causing approximation errors. Automation of these surface reconstruction processes is barely possible. To address these issues, different data-driven numerical strategies have been deduced based on either displacement or force. In this work, a material point tracking method in forming simulation between die and part geometry is presented. Based on this, enhanced displacement-based and stress-based methods for compensation of bulk forming parts are compared. The convergence behavior of both methods is analyzed with respect to the compensation factor. Finally, the material point tracking approach is validated and verified by compensating a two-dimensional bulk-formed component.
Organisation(s): Institute of Metal Forming and Metal Forming Machines
External Organisation(s): Technical University of Munich (TUM)
Type: Conference contribution
Pages: 277-284
No. of pages: 8
Publication date: 25.02.2019
Publication status: Published
Peer reviewed: Yes
ASJC Scopus subject areas: General Materials Science, Mechanics of Materials, Mechanical Engineering
Electronic version(s): https://doi.org/10.4028/www.scientific.net/kem.794.277 (Access: Closed)
: Details in the research portal "Research@Leibniz University"

BibTeX

@inproceedings{ffcb2a6440d548a4bbe6bc8c2decf641,
title = "Data-Driven Compensation for Bulk Formed Parts Based on Material Point Tracking",
abstract = "Currently, common inefficient trial-and-error procedures are used in designing bulk forming dies. Numerous iterations, consisting of numerical simulations and subsequent real tests, are needed to achieve accurate parts. During the compensation cycles, manual redesign in CAD environments is necessary to transform discrete data into parametric descriptions causing approximation errors. Automation of these surface reconstruction processes is barely possible. To address these issues, different data-driven numerical strategies have been deduced based on either displacement or force. In this work, a material point tracking method in forming simulation between die and part geometry is presented. Based on this, enhanced displacement-based and stress-based methods for compensation of bulk forming parts are compared. The convergence behavior of both methods is analyzed with respect to the compensation factor. Finally, the material point tracking approach is validated and verified by compensating a two-dimensional bulk-formed component.",
keywords = "Bulk forming, Compensation, Control points, Forging, Material point tracking",
author = "Daniel Maier and Christoph Hartmann and Michael Till and Christoph B{\"u}denbender and Behrens, {Bernd Arno} and Wolfram Volk",
note = "Funding Information:We would like to thank the German Research Foundation (DFG) for financial support under grant number BE1691/213.; 14th Asia-Pacific Symposium on Engineering Plasticity and its Applications, AEPA 2018 ; Conference date: 02-12-2018 Through 07-12-2018",
year = "2019",
month = feb,
day = "25",
doi = "10.4028/www.scientific.net/kem.794.277",
language = "English",
isbn = "978-3-0357-1362-6",
series = "Key Engineering Materials",
publisher = "Trans Tech Publications Ltd",
pages = "277--284",
editor = "Yoon, {Jeong Whan} and Han, {Heung Nam} and Kang, {Beom Soo} and Young-Suk Kim",
booktitle = "Advances in Engineering Plasticity and its Application IX",
}