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Investigation of Temperature Impact on Friction Conditions in Running Production of Automotive Body Components
Blekinge Institute of Technology, Faculty of Engineering, Department of Mechanical Engineering.ORCID iD: 0000-0001-9889-6746
Blekinge Institute of Technology, Faculty of Engineering, Department of Mechanical Engineering.ORCID iD: 0000-0002-7730-506x
Blekinge Institute of Technology, Faculty of Engineering, Department of Mechanical Engineering.ORCID iD: 0000-0002-6526-976x
2024 (English)In: 43RD International deep drawing research group, IDDRG Conference, 2024 / [ed] Rolfe, B ; Weiss, M ; Yoon, J ; Zhang, PN, Institute of Physics (IOP), 2024, article id 012004Conference paper, Published paper (Refereed)
Abstract [en]

During the running production of automotive body components drifts in theprocess window is seen causing problems with non-conforming parts. Up until now, these driftshave been counter-acted based on the knowledge and experience of the press line operators.This experience-based process control will however become more troublesome in the future asrecycled material grades will undoubtedly present larger in-coil variations in material parametersand effect also the friction conditions from component to component.The following study will present two cases from production of the Volvo XC60. For thetwo cases, the initial simulations made for the components showed a safe part, but duringrunning production failure occurred suspected to be due to temperature effects in the tribologysystem. The study will furthermore present updated simulations considering developing thermaleffects to replicate the failures, as well as present both standard and thermal simulations of theadjustments made in production.

Place, publisher, year, edition, pages
Institute of Physics (IOP), 2024. article id 012004
Series
IOP Conf. Series: Materials Science and Engineering, ISSN 1757-899X ; 1307
National Category
Other Mechanical Engineering
Research subject
Mechanical Engineering
Identifiers
URN: urn:nbn:se:bth-26333DOI: 10.1088/1757-899X/1307/1/012004ISI: 001245186500004OAI: oai:DiVA.org:bth-26333DiVA, id: diva2:1865227
Conference
43rd Conference of the International-Deep-Drawing-Research-Group (IDDRG) on Sustainable Sheet Forming - Circular Economy, Melbourne, Mar 12-15, 2024
Projects
Eureka SMART I-Stamp
Funder
Vinnova, 2021-03144Available from: 2024-06-04 Created: 2024-06-04 Last updated: 2025-10-15Bibliographically approved
In thesis
1. Towards Sustainable and Intelligent Manufacturing Processes: Data-Driven Insights from Automotive Manufacturing
Open this publication in new window or tab >>Towards Sustainable and Intelligent Manufacturing Processes: Data-Driven Insights from Automotive Manufacturing
2025 (English)Doctoral thesis, comprehensive summary (Other academic)
Abstract [en]

Global manufacturing is entering an era of unprecedented variability in material properties, driven by sustainability goals and market volatility. The adoption of recycled steels introduces supplier-specific differences, while cost-reduction strategies and geopolitical disruptions (tariffs, trade barriers, and resource shortages) further amplify process scatter. These dynamics challenge conventional quality control in automotive sheet metal forming and demand intelligent, adaptable production systems.

This dissertation addresses how data-driven methods can strengthen process robustness without major infrastructure changes. Three guiding hypotheses are explored: (H1) machine learning can provide insights into the impact of input variations; (H2) synthetic data can supplement or replace operational data for model development; and (H3) existing sensor signals can be reinterpreted to reduce reliance on additional instrumentation.

A hybrid methodology combining finite element simulations, stochastic modeling, and industrial press shop data was developed. Key contributions include: (1) generation of synthetic datasets for predictive modeling of draw-in and cushion force; (2) application of unsupervised learning for early detection of anomalous material batches; and (3) a novel process monitoring metric, process work, derived from existing sensors to monitor process health.

The findings provide a framework for integrating intelligent data-driven tools into legacy systems, supporting the transition toward resilient and sustainable manufacturing practices.

Place, publisher, year, edition, pages
Karlskrona: Blekinge Tekniska Högskola, 2025. p. 175
Series
Blekinge Institute of Technology Doctoral Dissertation Series, ISSN 1653-2090 ; 2025:16
Keywords
Data-Driven Manufacturing, Machine Learning in Manufacturing, Process Monitoring and Control, Sheet Metal Forming
National Category
Mechanical Engineering
Identifiers
urn:nbn:se:bth-28765 (URN)978-91-7295-517-2 (ISBN)
Public defence
2025-12-16, C413A, BTH, Karlskrona, 09:15 (English)
Opponent
Supervisors
Available from: 2025-11-03 Created: 2025-10-15 Last updated: 2025-12-10Bibliographically approved

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TemperatureImpact_Barlo2024(1896 kB)152 downloads
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3a1e59ec51a8b1ca6414d88cfb67f7947a231f536eb5749bd7d957e7c19b2781b92d328526602d6a4ac0dfbce3ca016803cffd0a8c64df8ae281260c1728ec9a
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Barlo, AlexanderSigvant, MatsPilthammar, Johan

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