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Deep Learning-Based Optical Character Recognition for Identifying On-Label Printed Part Numbers of Used Automotive Parts: A Comparative Study of Open Source and Commercial Methods 19th

Deep Learning-Based Optical Character Recognition for Identi...

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19th Global Conference on Sustainable Manufacturing, GCSM 2023

作者： Schlüter, Marian Tepper, Christian Briese, Clemens Kroeger, Ole Vicente-Garcia, Raul Krüger, Jörg Fraunhofer Institute for Production Systems and Design Technology IPK Berlin Germany

ISBN: (纸本)9783031774287

This paper explores the use of deep learning-based optical character recognition (OCR) to identify part numbers for used automotive parts. It compares open source and advanced AI methods to commercial tools from Google, Amazon, and Microsoft. The study finds that fine-tuned open source models outperform commercial services, especially for complex part numbers unrelated to any language structure. The preferred open source method, MaskedTextSpotter, is fine-tuned with image data from old vehicle and electrical parts, captured by a smartphone and 2D barcode scanner. Additionally, a new data augmentation method, CharChan, is introduced, replacing detected characters with random examples for better character recognition. The experiments demonstrate the efficacy of deep learning-based OCR for automotive part number identification. © The Author(s) 2025.

关键词： Deep learning

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Business Model design in Context of Circular Economy 19th

Business Model Design in Context of Circular Economy

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19th Global Conference on Sustainable Manufacturing, GCSM 2023

作者： Gellert, Benjamin Buxmann, Henry Nicolai Orth, Ronald Fraunhofer Institute for Production Systems and Design Technology Pascalstr. 8-9 Berlin10587 Germany

ISBN: (纸本)9783031774287

In dynamic environments, businesses not only look for sustainable technology solutions, but also for new business model opportunities that management can apply as they move to a more sustainable future. Being embedded in the process of analyzing the status quo and identifying potential improvements of sustainability management, this article focuses on the development of a catalog with circular economy-based business model patterns to provide an overview of universally applicable implementation measures for business model development. For this purpose, four steps were conducted: An extensive literature research to identify a comprehensive collection of sustainable business model patterns with specific emphasis on circular economy, reduction of identified patterns to exclude redundancies and ambiguities, derivation of the influence of these patterns on the elements of the Business Model Canvas—taking into account their impact on environmental sustainability, and a final enrichment with further details for practical application. This includes a definition, benefits, barriers, implementation steps as well as filterable categories for the specific selection of business model patterns. The result is a catalog which provides a valuable resource for businesses looking to adopt more sustainable business practices. © The Author(s) 2025.

关键词： Circular economy

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Developing a Framework for Sustainable Education in a production Engineering Study Program 19th

Developing a Framework for Sustainable Education in a Produc...

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19th Global Conference on Sustainable Manufacturing, GCSM 2023

作者： Mintchev, Maxim Eingartner, Valentin Muschard, Bernd Oertwig, Nicole Technische Universität Berlin Berlin Germany Fraunhofer Institute for Production Systems and Design Technology Berlin Germany

ISBN: (纸本)9783031774287

Given the current challenges faced by the world regarding climate change and the goals outlined by the United Nations in their Agenda 2030 for Sustainable Development, sustainability is increasingly gaining importance in education and industry. To be able to tackle the challenges of responsible consumption and production, societies need to prepare highly skilled and responsibly thinking engineers, who are fit for the market while also contributing actively to the transformative change towards sustainable economies and societies. The international master program Global production Engineering (GPE) at Technische Universität Berlin aims to impart knowledge on production, engineering, and management with a major focus on sustainability. In this paper, policies of universities locally and worldwide are reviewed and lecturers of GPE are surveyed to determine which sustainability topics and approaches are integrated in their lectures and in the curriculum. From this, a framework for competence building for sustainable development in the economy is developed. The program is then reviewed and found to be teaching some of the core competencies outlined by the Education for Sustainable Development, albeit with a clear potential for improvement. To address this, corrective measures are proposed. © The Author(s) 2025.

关键词： Sustainable development goals

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Planning and Control of Value Creation Networks in Timber Construction 19th

Planning and Control of Value Creation Networks in Timber Co...

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19th Global Conference on Sustainable Manufacturing, GCSM 2023

作者： Orozco, Sebastian Oertwig, Nicole Feldhaus, Annika Eingarnter, Valentin Mintchev, Maxim Kohl, Holger Technische Universität Berlin Berlin Germany Fraunhofer Institute for Production Systems and Design Technology Berlin Germany

ISBN: (纸本)9783031774287

Almost 40 percent of the global carbon emissions are caused by the construction and building sector. Additionally, the production of traditional building materials like concrete and steel requires a large amount of energy. The demand for residential buildings is increasing none the less and can potentially be met by utilizing more sustainable materials like timber in construction. However, timber construction is still connected to a rather manual value creation chain and analog information transfer. To make the process more time- and energy efficient, this paper proposes a framework for the value creation system of urban timber construction from the forest to the city. The three-leveled framework, based on the principles of Industry 4.0, connects the urban development planning with the vertical networking of digital technologies and the horizontal networking in the value chain. The framework is implemented to a dashboard using Microsoft Power BI to demonstrate the close relations of the layers. © The Author(s) 2025.

关键词： Digital transformation Timber construction Value creation network

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Supporting Changes in Digital Ownership and Data Sovereignty Across the Automotive Value Chain with Catena-X 6

Supporting Changes in Digital Ownership and Data Sovereignty...

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6th International Conference on Industry 4.0 and Smart Manufacturing, ISM 2024

作者： Manoury, Marvin Riedelsheimer, Theresa Hellmeier, Malte Meyer, Tom Fraunhofer Institute for Production Systems and Design Technology IPK Pascalstrasse 8-9 Berlin10587 Germany Fraunhofer Institute for Software and Systems Engineering ISST Speicherstraße 6 Dortmund44147 Germany

Considering the concept of a Circular Economy, which entails several life cycles of, e.g., vehicles, their components, and materials, it is important to investigate how the respective Digital Twins are managed over the lifecycle of their physical assets. This publication presents and compares three approaches for managing Digital Twins in industrial use cases. For the aggregation of these approaches, a user-centered design approach has been used in the research project Catena-X which focuses on the automotive industry. The results are analyzed qualitatively based on aspects such as data ownership and data sovereignty. It was identified, that all three approaches have limitations and benefits which make them useful in different scenarios. An overview of their strengths and weaknesses is presented to select an appropriate approach In similar setups. The results described in this publication can be used to select the best update approach in data spaces where multiple stakeholders are able to update information on a single asset. © 2025 The Authors.

关键词： Supply chains

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Simulation of ultrasonic-assisted grinding for improved efficiency in hard-to-machine materials: A direct approach to analyze material removal mechanisms 20

Simulation of ultrasonic-assisted grinding for improved effi...

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20th CIRP Conference on Modeling of Machining Operations in Mons, CIRP CMMO 2025

作者： Uhlmann, Eckart Gülzow, Bernhard Zhang, Xinyu Pascalstr. 8-9 Berlin10587 Germany Fraunhofer Institute for Production Systems and Design Technology IPK Pascalstr. 8-9 Berlin10587 Germany

The application of ultrasonic superposition is utilized in industrial manufacturing to enhance the chip formation mechanisms, particularly when machining hard-to-machine materials. The institute for Machine Tools and Factory Management (IWF) systematically investigates the interactions between tool and workpiece during ultrasonic-assisted grinding of high-performance ceramics. To gain an in-depth understanding of the microscopic engagement conditions, these conditions are analyzed by simulation. For this purpose, a Python simulation tool based on a geometrical-kinematic modeling approach was developed to analyze the ultrasonic-assisted circumferential longitudinal grinding process. It was demonstrated that ultrasonic assistance leads to smaller and more uniform chip thicknesses which reduce grinding forces and minimizes tool wear. Also, it promotes brittle chip formation mechanisms and improves the efficiency of the grinding process compared to conventional machining. For further investigation, the simulation model was adapted to the transverse face grinding process. In this context, not only the circumferential surface but also the face surface of the grinding tool is engaged with the workpiece. Additionally, the penetration of the workpiece is no longer tangential with the rotational movement but perpendicular to the tool movement. Analogous to the results of the analysis of the circumferential longitudinal grinding process, the influences of ultrasonic excitation on the engagement conditions, particularly the resulting chip thickness and surface topography for the adapted process kinematics were determined and are presented in this paper. © 2025 The Author(s).

关键词： Grinding (machining)

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DEM Simulation of Abrasive Brushing Processes on Additively Manufactured Workpieces 20

DEM Simulation of Abrasive Brushing Processes on Additively ...

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20th CIRP Conference on Modeling of Machining Operations in Mons, CIRP CMMO 2025

作者： Hoyer, Anton Uhlmann, Eckart Technische Universität Berlin Pascalstr. 8-9 Berlin10587 Germany Fraunhofer Institute for Production Systems and Design Technology IPK Pascalstr. 8-9 Berlin10587 Germany

Brushing with bonded abrasives is a finishing process mainly used for deburring, edge rounding, and surface roughness reduction. The brushing tools consist of flexible polymer filaments embedded with abrasive grains, allowing them to adapt to complex workpiece shapes. However, interactions between filaments lead to complex motion, chipping, and wear behaviors, making it difficult to predict work results. The discrete element method (DEM) has been shown to be effective in simulating process forces, contact areas, and filament interactions on flat workpieces. Consequently, this article focuses on processing geometrically complex workpieces, particularly additively manufactured turbine fan blades (Ni-Cr-Co), using round brushes with bonded silicon carbide. First, a vectorized iterative method is introduced to generate artificial filament patterns, enhancing DEM simulation accuracy compared to state-of-the-art filament pattern models. Subsequently, dry brushing experiments are carried out on a fan blade feature demonstrator, aiming to achieve homogeneous roughness reduction. The qualitative analysis of the contact surface suggests that results from DEM simulations can reduce the need for costly technological investigations and prototypes. © 2025 The Author(s).

关键词： Nickel alloys

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Corporate Climate Protection Measures to Improve the Carbon Footprint in production: A Systematic Development of a Toolbox with Climate Protection Actions for the Reduction of Greenhouse Gas Emissions in Small and Medium-Sized Enterprises 19th

Corporate Climate Protection Measures to Improve the Carbon ...

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19th Global Conference on Sustainable Manufacturing, GCSM 2023

作者： Budde, Felix Kohl, Holger Fraunhofer Institute for Production Systems and Design Technology IPK Pascalstraße 8-9 Berlin10587 Germany Technische Universität Berlin Pascalstraße 8-9 Berlin10587 Germany

ISBN: (纸本)9783031774287

Individual climate protection measures are already being successfully implemented by many companies. But often, there is a lack of comprehensive information for selecting and implementing the right measures that fit the individual company’s emissions profile. This paper presents the systematic development of a toolbox of climate protection actions for small and medium-sized enterprises in order to reduce greenhouse gas emissions. The development process followed a four-step methodological approach: conducting intensive research on climate protection measures in applied and practical literature, reducing and grouping the measures into their corresponding emission categories, structuring and categorizing the measures into specific types of areas, and providing detailed profiles and descriptions of each measure. The resulting list of climate protection actions follows underlying basic principles (i.e. improvement of the emission factor, reduction of emission-generating activities and behavioral changes) which allow an individual derivation of measures. In its final version, the toolbox provides small and medium-sized enterprises with a comprehensive and accessible resource for identifying and implementing effective climate protection actions according to their emissions profile. © The Author(s) 2025.

关键词： Greenhouse gas emissions

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technology Radar for a Sustainable Biological Transformation in the Manufacturing Industry 19th

Technology Radar for a Sustainable Biological Transformation...

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19th Global Conference on Sustainable Manufacturing, GCSM 2023

作者： Mügge, Janine Berkhahn, Magda Knauf, Tobias Stark, Rainer Faßbender, Lynn Lange, Annika Riedelsheimer, Theresa Lindow, Kai Fraunhofer Institute for Production Systems and Design Technology IPK Pascalstraße 8-9 Berlin10587 Germany Technische Universität Berlin Pascalstraße 8-9 Berlin10587 Germany

ISBN: (纸本)9783031774287

Bio-inspired, bio-integrated, bio-intelligent product and production systems are new research approaches aimed at achieving sustainability in manufacturing. For the industrial application of new technological solutions, it is crucial to convey their added value from not only an economic but also an environmental perspective. The evaluation of their technological readiness plays an important role in implementation. This paper presents a technology radar developed and evaluated within German research project BioFusion 4.0 involving 13 industry and research partners. The paper outlines the development approach and its application by means of three technological examples. The technologies are categorized and assessed using four significant attributes of an effective biological transformation: (1) the mode of action (bio-inspiration, bio-integration, and bio-interaction);(2) the transformative character and (3), the technology—and (4) Sustainability Readiness Level. The technology radar comprises a step-by-step procedure to assess a technology by each criterion to enable different stakeholders, such as production planners or product developers to evaluate and identify suitable technologies according to their needs and business strategy. The application of the technology radar is demonstrated on the exemplary technologies of a digital twin with integrated life-cycle assessment, situation awareness monitor for networked production systems and bio-based 3D printing. © The Author(s) 2025.

关键词： Biotic

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Supporting Changes in Digital Ownership and Data Sovereignty Across the Automotive Value Chain with Catena-X

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Procedia Computer Science 2025年 253卷 374-383页

作者： Marvin Manoury Theresa Riedelsheimer Malte Hellmeier Tom Meyer Fraunhofer Institute for Production Systems and Design Technology IPK Pascalstrasse 8-9 10587 Berlin Germany Fraunhofer Institute for Software and Systems Engineering ISST Speicherstraße 6 44147 Dortmund Germany

关键词： Digital Twins Ownership Circular Economy Data Sovereignty Supply Chain Catena-X

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