Influence of the forming induced hardening on the wear behavior of aluminum gears within a metal-plastic material pairing and targeted adaption

Rohrmoser A, Hagenah H, Merklein M (2021)

Publication Language: English

Publication Type: Conference contribution, Conference Contribution

Publication year: 2021

Journal

Procedia Manufacturing Elsevier

Publisher: Elsevier B.V.

Book Volume: 53

Pages Range: 189-196

Conference Proceedings Title: Procedia Manufacturing

Event location: Cincinnati, OH US

DOI: 10.1016/j.promfg.2021.06.078

Open Access Link: https://www.sciencedirect.com/science/article/pii/S2351978921000974/pdf?md5=77c8f55c080965f9d86c0a4415b38093πd=1-s2.0-S2351978921000974-main.pdf

Abstract

The material pairing metal-plastic offers advantages such as a reduced weight and the ability to be operated in dry conditions, but the application is limited due to the occurring wear. The properties of the metallic gearing have a significant influence on the wear behavior. From previous investigations on the application of steel within the material pairing, the influence of the surface topography and the load case is known. With regard to further weight reduction, the application of light metals such as aluminum is promising. However, the low strength of aluminum poses a challenge due to the low wear resistance. The properties of the metallic gearing are not only determined by the choice of material but also by the manufacturing process. In this context, cold extrusion offers potential for the production of ready-to-use gears. Sufficient geometrical properties and a substantial increase in tooth flank hardness are achieved. In this contribution, the influence of the forming induced hardening on the wear behavior of aluminum gears was investigated. Wire eroded aluminum and steel gears were used for comparison. The low hardness of conventionally manufactured aluminum gears was identified as a major challenge. Subsequently, gears with significantly higher tooth flank hardness were manufactured in an adapted full-forward extrusion process and the improved wear behavior was verified. Finally, functional correlations regarding the hardness of the metal pinion and the resulting wear behavior were derived.

Authors with CRIS profile

Andreas Rohrmoser Institute of Manufacturing Technology Hinnerk Hagenah Institute of Manufacturing Technology Marion Merklein Institute of Manufacturing Technology

Related research project(s)

Consideration of functionally relevant geometric deviations in the design of metal forming processes for the production of gears by extrusion FOR 2271: Prozessorientiertes Toleranzmanagement mit virtuellen Absicherungsmethoden (FORTol) April 1, 2016 - March 31, 2023

How to cite

APA:

Rohrmoser, A., Hagenah, H., & Merklein, M. (2021). Influence of the forming induced hardening on the wear behavior of aluminum gears within a metal-plastic material pairing and targeted adaption. In Livan Fratini, Ihab Ragai (Eds.), Procedia Manufacturing (pp. 189-196). Cincinnati, OH, US: Elsevier B.V..

MLA:

Rohrmoser, Andreas, Hinnerk Hagenah, and Marion Merklein. "Influence of the forming induced hardening on the wear behavior of aluminum gears within a metal-plastic material pairing and targeted adaption." Proceedings of the 49th SME North American Manufacturing Research Conference, NAMRC 2021, Cincinnati, OH Ed. Livan Fratini, Ihab Ragai, Elsevier B.V., 2021. 189-196.

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