Development and Experimental Verification of a New Roller-Coining Setup to Texture Flat and Curved Surfaces

Adam Szurdak; Gerhard Hirt

doi:10.4028/www.scientific.net/AMM.794.128

Paper Titles

Optimization of Cooling and Lubrication for Nitrided and Ceramic-Coated Hot Forging Dies
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Batch Fluctuations in Short Cycle Stretch Forming of Tinplate can Bodies
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Design Approach for Roll Forming of Profiles with Integrated Electrical Conductors
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Evaluation of Modular Roll-Setup to Roll Grooves into Steel Sheets
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Development and Experimental Verification of a New Roller-Coining Setup to Texture Flat and Curved Surfaces
p.128

Measurement of Rings via Image Processing during and after Radial-Axial Ring Rolling
p.136

New Process Strategies to Manufacture Tailored Blanks out of DP600 by Orbital Forming
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Severe Plastic Deformation and Incremental Forming for Magnetic Hardening
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Hollow Lateral Extrusion of Tubular Billets – Further Development of the Cold Forging Process
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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vol. 794Development and Experimental Verification of a New...

Development and Experimental Verification of a New Roller-Coining Setup to Texture Flat and Curved Surfaces

Abstract:

Micro lubrication pockets decrease the frictional losses and improve the wear resistance of lubricated machine elements. Depending on the application, the pocket dimension and the area density (ratio of the projected pocket area to the non-textured area) must be optimized. Otherwise, the lubrication pockets might increase friction and wear. Besides the determination of the optimized texture, the production process needs to manufacture the pockets with high reproducibility and accuracy, since each deviation of the texture might reduce the improvement of the tribological properties. The goal of this work is to develop a new forming setup capable of decreasing the influence of deviations in the material, of the tool or due to a process inaccuracy ́s. Therefore, a roller-coining process based on a pneumatic system was developed to keep the forming force and thus the pocket dimension constant. This setup was as well used to texture the roller, since the manufacturing of a prominent micro texture on a curved surface with high tolerances is a difficult task for other texturing methods. The experimental verification of the setup showed that by using the pneumatic setup the standard deviation of the pocket depth was reduced by an average factor of 1.9.

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Periodical:

Applied Mechanics and Materials (Volume 794)

Pages:

128-135

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.794.128

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Online since:

October 2015

Authors:

Adam Szurdak*, Gerhard Hirt

Keywords:

Accuracy, Cold Forming, Surface Texturing

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