| Issue |
MATEC Web Conf.
Volume 137, 2017
Modern Technologies in Manufacturing (MTeM 2017 - AMaTUC)
|
|
|---|---|---|
| Article Number | 05003 | |
| Number of page(s) | 8 | |
| Section | Metal Forming | |
| DOI | https://doi.org/10.1051/matecconf/201713705003 | |
| Published online | 22 November 2017 | |
Evaluation of deep drawing force under different friction conditions
Technical University of Cluj-Napoca, CERTETA Research Centre, B-dul Muncii nr. 103-105, Cluj-Napoca, Romania
* Corresponding author: lucian.lazarescu@tcm.utcluj.ro
The purpose of this study is to investigate the variation of the required punch load during the deep drawing process under different friction conditions. In this regards, several deep-drawing tests of cylindrical cups were conducted under four friction conditions at the tool–blank interface. The first case was the dry deep-drawing, considered as a reference friction condition, while in the other three cases hydraulic oil, lithium-based grease and animal fat were used as lubricants. For each friction case, three levels of blank holding force were adopted, namely 10, 20 and 25 kN. The finite element simulation of the deep-drawing process was used to generate a set of calibration curves. By overlapping the experimental load-stroke curves on the calibration curves, the friction coefficient was estimated for each friction case.
© The authors, published by EDP Sciences, 2017
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (http://creativecommons.org/licenses/by/4.0/).
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