Tribological studies on multi-coated forming tools

Weikert T, Tremmel S, Stangier D, Tillmann W, Krebs E, Biermann D (2020)


Publication Language: English

Publication Type: Journal article, Original article

Publication year: 2020

Journal

Book Volume: 49

Pages Range: 141-152

URI: https://www.sciencedirect.com/science/article/pii/S1526612519304086?via=ihub

DOI: 10.1016/j.jmapro.2019.11.021

Abstract

Processes of Sheet-Bulk Metal Forming combine operations of both sheet and bulk metal forming, enabling the production of closely-toleranced functional components. Locally differing friction conditions on a single tool surface are crucial to control the material flow and to reduce process forces and tool wear. In order to understand how different friction conditions on a multi-coated tool surface affect the material flow during forming operations, variants of amorphous carbon coatings (a-C:H:W) and Cr-based hard coatings (CrAlN, CrAlCN) were deposited in combinations side by side on punches of ring compression tests. Evaluating the rings’ shapes revealed the coatings’ effects on material flow in terms of ring inner contours with sections of varying curvatures. Characteristic friction mechanisms were observed, which allowed a local delimitation of friction conditions by selectively applied coatings.

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How to cite

APA:

Weikert, T., Tremmel, S., Stangier, D., Tillmann, W., Krebs, E., & Biermann, D. (2020). Tribological studies on multi-coated forming tools. Journal of Manufacturing Processes, 49, 141-152. https://doi.org/10.1016/j.jmapro.2019.11.021

MLA:

Weikert, Tim, et al. "Tribological studies on multi-coated forming tools." Journal of Manufacturing Processes 49 (2020): 141-152.

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