MATEC Web Conf.
Volume 190, 20185th International Conference on New Forming Technology (ICNFT 2018)
|Number of page(s)||8|
|Section||Dry metal forming, Special session SPP 1676|
|Published online||18 September 2018|
Reducing Abrasive Particle Generation in Dry Rotary Swaging by Utilizing DLC Hard Coated Dies
IWT Leibniz Institute for Materials Engineering, Laboratory for Precision Machining, Badgasteiner Straße 3, 28359 Bremen, Germany
2 bime Bremen Institute for Mechanical Engineering, University of Bremen, Badgasteiner Straße 1, 28359 Bremen, Germany
3 MAPEX Center for Materials and Processing, University of Bremen, Am Fallturm 1, 28359, Bremen, Germany
Corresponding author: firstname.lastname@example.org
The emphasis of this paper is the investigation of the impact of the diamond like carbon (DLC) hard coating system on the amount of abrasive particles being generated during dry rotary swaging. Rotary swaging experiments applying coated and uncoated macro structured forming dies were carried out against aluminum and steel work pieces varying the process parameter feed velocity. It was found that DLC coatings effectively reduce the generation of abrasive particles from the work piece. For dry machining of aluminum the amount was reduced to a tenth of the original quantity achieved with uncoated dies. The results are discussed with regard to the mechanics of interfacing surfaces. Additionally, forming dies exhibiting macro structures surfaces of improved design were introduced and applied in dry rotary swaging experiments, which allowed minimizing the abrasive particle generation.
Key words: Sustainable machining / Cold forming / Die
© The Authors, published by EDP Sciences, 2018
This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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