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

Journal of Manufacturing Processes Elsevier

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.

Authors with CRIS profile

Tim Weikert Chair of Engineering Design Stephan Tremmel Chair of Engineering Design

Additional Organisation(s)

Chair of Engineering Design

Related research project(s)

Tribological DLC-Coatings in Combination with Surface Texturing for Forming Tools to Increase Lifetime and to Improve Process Quality (B04) TRR 73: Manufacturing of complex functional components with variants by using a new sheet metal forming process - Sheet-Bulk Metal Forming Jan. 1, 2009 - Dec. 31, 2020

Involved external institutions

Technische Universität Dortmund DE Germany (DE)

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://dx.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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