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Dry Deep Drawing of Aluminum and the Influence of Sheet Metal Roughness

Flegler, Felix ; Groche, Peter ; Abraham, Tim ; Bräuer, Günter (2024)
Dry Deep Drawing of Aluminum and the Influence of Sheet Metal Roughness.
In: JOM : The Journal of The Minerals, Metals & Materials Society (TMS), 2020, 72 (7)
doi: 10.26083/tuprints-00023960
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Item Type: Article
Type of entry: Secondary publication
Title: Dry Deep Drawing of Aluminum and the Influence of Sheet Metal Roughness
Language: English
Date: 10 December 2024
Place of Publication: Darmstadt
Year of primary publication: July 2020
Place of primary publication: New York
Publisher: Springer Science
Journal or Publication Title: JOM : The Journal of The Minerals, Metals & Materials Society (TMS)
Volume of the journal: 72
Issue Number: 7
DOI: 10.26083/tuprints-00023960
Corresponding Links:
Origin: Secondary publication DeepGreen
Abstract:

Dry forming processes are associated with major challenges, especially when it comes to aluminum as the workpiece material. Major losses in process quality and robustness occur when lubricants are spared. This is due to the high adhesion tendency of aluminum towards common tool materials. Nanoscopically smooth coatings based on amorphous hydrocarbons (a-C:H) can significantly reduce wear. Further preliminary investigations have shown that a reduction of the roughness of a mill-finished sheet results in a significant improvement with regard to the friction and wear behavior in the strip drawing test. These tests are now transferred to a real workpiece. First, the different zones of the deep drawing process are modeled in the strip drawing test and coefficients of friction are derived. Flawless deep drawing tests can be carried out with nanoscopically smooth a-C:H coatings. By polishing the sheets and using the a-C:H coated tools without further surface treatment, the dry friction and wear are reduced, but compared with experiments on smoothened a-C:H coatings, the necessary process forces are higher and may lead to rupture of the aluminum sheet.

Uncontrolled Keywords: Engineering, general, Chemistry/Food Science, general, Physics, general, Environment, general, Earth Sciences, general
Status: Publisher's Version
URN: urn:nbn:de:tuda-tuprints-239607
Classification DDC: 600 Technology, medicine, applied sciences > 620 Engineering and machine engineering
Divisions: 16 Department of Mechanical Engineering > Institute for Production Engineering and Forming Machines (PtU)
Date Deposited: 10 Dec 2024 13:29
Last Modified: 13 Dec 2024 10:35
SWORD Depositor: Deep Green
URI: https://tuprints.ulb.tu-darmstadt.de/id/eprint/23960
PPN: 524549087
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