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Advanced friction modelling in cold forging using machine learning

Volz, Stefan ; Launhardt, Jonas ; Groche, Peter (2024)
Advanced friction modelling in cold forging using machine learning.
57th International Cold Forging Group Plenary Meeting Proceeding (ICFG 2024). Busan, South Korea (22.09.2024-25.09.2024)
doi: 10.26083/tuprints-00028589
Conference or Workshop Item, Primary publication, Publisher's Version

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Item Type: Conference or Workshop Item
Type of entry: Primary publication
Title: Advanced friction modelling in cold forging using machine learning
Language: English
Date: 30 October 2024
Place of Publication: Busan
Publisher: International Cold Forging Group
Book Title: 57th ICFG Plenary Meeting
Event Title: 57th International Cold Forging Group Plenary Meeting Proceeding (ICFG 2024)
Event Location: Busan, South Korea
Event Dates: 22.09.2024-25.09.2024
DOI: 10.26083/tuprints-00028589
Abstract:

Despite the intensive development of FE simulations for cold forging applications over the last decades, they are still prone to errors due to, among other things, inaccurate material and friction modelling. The use of advanced friction models can reduce the error caused by friction modelling. [1] However, existing models for cold forging are often limited to a specific application and require extensive tribometer testing for parameter determination. This work presents a new method for efficient data collection through time series analysis, which significantly reduces the number of tribometer tests required. The new method also allows the use of deep learning algorithms for friction modelling. Using the new method, five different friction models, including one deep learning model, are trained and implemented in the FE simulation. Using two typical forming processes for validation, it is shown that the use of a feed-forward neural network friction model reduces the relative error of the FE simulation by ~59% compared to simple friction models. Compared to the state of the art method, the time series based data collection approach reduces the necessary experimental testing by 62 %. Furthermore, the advanced friction models presented are not limited to a specific process, but can be used for any type of cold forging simulation.

Status: Publisher's Version
URN: urn:nbn:de:tuda-tuprints-285890
Classification DDC: 600 Technology, medicine, applied sciences > 600 Technology
600 Technology, medicine, applied sciences > 620 Engineering and machine engineering
600 Technology, medicine, applied sciences > 670 Manufacturing
Divisions: 16 Department of Mechanical Engineering > Institut für Produktionstechnik und Umformmaschinen (PtU)
16 Department of Mechanical Engineering > Institut für Produktionstechnik und Umformmaschinen (PtU) > Tribology
Date Deposited: 30 Oct 2024 13:07
Last Modified: 31 Oct 2024 06:25
URI: https://tuprints.ulb.tu-darmstadt.de/id/eprint/28589
PPN: 522846262
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