Study of Microforging of Parallel Ribs from Metal Strip

Tommaso Stellin; Redmer van Tijum; Marion Merklein; Ulf Engel

doi:10.4028/www.scientific.net/KEM.611-612.565

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HomeKey Engineering MaterialsKey Engineering Materials Vols. 611-612Study of Microforging of Parallel Ribs from Metal...

Study of Microforging of Parallel Ribs from Metal Strip

Abstract:

The on-going trend in product miniaturization, together with the increasing quality and reduction of costs of micro-components, leads to the need of a robust process design, which might additionally avoid the occurrence of defects in the workpiece. Processes like microforming are affected by variations which can be foreseen but not totally mastered in the design stage. One approach is seen in an adaptive control system based on a metamodel processing the data of online measuring. This approach is grounded on in-depth knowledge based on correct and precise process modelling. This paper presents both experimental and simulative study of a microforging process, part of a more complex forming chain. It consists of six parallel ribs on metal strip. The ribs have a width of 250 µm and are spaced by a gap of 150 µm. The process has been studied by different punch forces, analyzing the final geometry of the workpiece. In particular the rib height is considered as critical to quality parameter. The simulations show reliable results that can be used for the design of the model interfacing measurement and control of the whole microforming process.

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Periodical:

Key Engineering Materials (Volumes 611-612)

Pages:

565-572

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.611-612.565

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Online since:

May 2014

Authors:

Tommaso Stellin*, Redmer van Tijum, Marion Merklein, Ulf Engel

Keywords:

Microforging, Sheet-Bulk Metal Forming, Stainless Steel (SS)

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* - Corresponding Author

References

[1] Ravenswaaij, R.; van Tijum, R.; Hora, P.; van den Boogaard, T.; Engel, U.: Towards zero-defect manufacturing of small metal parts. In: IDDRG 2013 Conference Proceedings, (2013), Zurich: Institute of Virtual Manufacturing, ETH Zurich, pp.87-92.

Google Scholar

[2] Stellin, T.; Merklein, M.; Engel, U.: Experimental and Numerical Investigation on a Full Forward Extrusion Process from Metal Strip. In: Humbert Noll, Nadja Adamovic and Stefan Dimov (Edtr. ): Proceedings of the 9th International Conference on Multi-Material Micro Manufacture, Research Publishing, 2012, pp.163-166.

DOI: 10.3850/978-981-07-3353-7_274

Google Scholar

[3] G.Y. Kim, M. Koç, J. Ni, Experimental and Numerical Investigations on Microcoining of Stainless Steel 304, Journal of Manufacturing Science and Engineering (2008), Vol 130, pp.0410171-0410176.

DOI: 10.1115/1.2953235

Google Scholar

[4] S.J. Grobbink, G. Klaseboer, J. Post and J. Huetink, Investigations on the Predictability of Coining Stainless Steel AISI 410, Proceedings Numiform 2010, Edited by F. Barlat, Y. H. Moon, and M. G. Lee, pp.956-963.

DOI: 10.1063/1.3457660

Google Scholar

[5] Information on http: /www. megafit-project. eu.

Google Scholar

[6] Stellin, T.; Merklein, M.; Engel, U.: Investigation on a Microextrusion Process of Parallel Protrusions from Metal Strip In: M. Jun, S. Park (Edtr. ): Proceedings of the 8th International Conference on Micro Manufacturing, 2013, pp.169-174.

Google Scholar