Investigation of tribological behaviour of a-C:H coatings for dry deep drawing of aluminium alloys

Zhao R, Steiner J, Andreas K, Merklein M, Tremmel S (2017)

Publication Language: English

Publication Type: Journal article, Review article

Publication year: 2017

Journal

DOI: 10.1016/j.triboint.2017.05.031

Abstract

Lubricant‑free sheet metal forming increases resource efficiency and contributes to environmental protection. One approach to reducing friction and wear in dry forming is the tool-sided application of carbon-based coatings. In this work, amorphous hydrogenated carbon (a‑C:H) coatings were prepared by plasma‑enhanced chemical vapour deposition (PECVD). The coating samples were deposited under different amounts and ratios of acetylene (C₂H₂) and argon (Ar) gas atmospheres. The coating samples were characterized regarding their thickness, roughness and mechanical as well as chemical bond structures. The tribological behaviour against aluminium alloys was investigated under lubricant‑free conditions with a ring‑on‑disc tribometer. The relationships between chemical bond composition and coating properties were clarified. Finally, one a-C:H coating variant with promising tribological performance against aluminium alloys was exemplarily tested in a flat strip drawing test, which models the tribological conditions in the flange area of a deep drawing process.

Authors with CRIS profile

Rong Zhao Chair of Engineering Design (KTmfk) Jennifer Tenner Institute of Manufacturing Technology (LFT) Kolja Andreas Institute of Manufacturing Technology (LFT) Marion Merklein Institute of Manufacturing Technology (LFT) Stephan Tremmel Chair of Engineering Design (KTmfk)

Related research project(s)

Lubricant free forming with tailored tribological conditions SPP 1676: Nachhaltige Produktion durch Trockenbearbeitung in der Umformtechnik Oct. 1, 2013 - July 31, 2020 Lubricant free forming with tailored tribological conditions SPP 1676: Nachhaltige Produktion durch Trockenbearbeitung in der Umformtechnik Oct. 1, 2015 - July 31, 2020 Lubricant free forming with tailored tribological conditions SPP 1676: Nachhaltige Produktion durch Trockenbearbeitung in der Umformtechnik Oct. 1, 2013 - Sept. 30, 2018

How to cite

APA:

Zhao, R., Steiner, J., Andreas, K., Merklein, M., & Tremmel, S. (2017). Investigation of tribological behaviour of a-C:H coatings for dry deep drawing of aluminium alloys. Tribology International. https://doi.org/10.1016/j.triboint.2017.05.031

MLA:

Zhao, Rong, et al. "Investigation of tribological behaviour of a-C:H coatings for dry deep drawing of aluminium alloys." Tribology International (2017).

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