Comparison of forming processes for micro textured cups

Reck M, Merklein M (2023)

Publication Type: Journal article

Publication year: 2023


Book Volume: 35

Pages Range: 258-268

DOI: 10.1016/j.mfglet.2023.08.039


Friction losses are present in all kinds of technical systems. This is always associated with additional energy consumption, which can be partly avoided as it arises. Energy savings can be achieved by a wide range of approaches. The application of friction reducing coatings on bodies in relative motion is widespread. The coating of parts is however only suitable to a limited extent for the production in large batches. Therefore, research approaches consider alternative methods to achieve friction reductions. A promising approach is the integration of miniaturized pockets on the surface of the component. In lubricated contacts, the lubricant can then accumulate in these indentations. The relative motion between two bodies thus builds up a hydrodynamic pressure and consequently reduces friction. Forming technology is suitable for the efficient production of metallic components in large quantities. The aim of this study is therefore to identify challenges in the integration of micro coining in established forming processes. Two processes from sheet metal forming and bulk metal forming are investigated. In a combined experimental and numerical approach, process-specific challenges are derived regarding the texturing process and the numerical process modelling for combined micro coining. The analysis is carried out on a cup geometry, as used in the automotive sector as tappets in the valve train. The case hardening steel 16MnCr5 (1.7131) is used as workpiece material.

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How to cite


Reck, M., & Merklein, M. (2023). Comparison of forming processes for micro textured cups. Manufacturing Letters, 35, 258-268.


Reck, Manuel, and Marion Merklein. "Comparison of forming processes for micro textured cups." Manufacturing Letters 35 (2023): 258-268.

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