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检索条件"机构=Fraunhofer Institute for Production System and Design Technology IPK"

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Functional Architecture for Solution Independent Realizations of Digital Continuity in system Development

Functional Architecture for Solution Independent Realization...

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2023 International Interdisciplinary PhD Workshop, IIPhDW 2023

作者： Manoury, Marvin Fraunhofer Institute for Production Systems and Design Technology Ipk Virtual Product Creation Berlin Germany

ISBN: (纸本)9781665410847

Product and service creation requires the interdisciplinary collaboration of different stakeholders. In virtual product and service creation these stakeholders generate models and data to describe the product or service over their entire life cycle. For a reliant product creation and optimization, these models and data need to be consistent through all disciplines and life cycle phases. In this publication, a solution-independent functional architecture to foster the digital continuity across the involved disciplines and life cycle phases is described. To achieve it, existing approaches in literature are evaluated and requirements and desired capabilities extracted. An reduced form of the Architecture Analysis & design Integrated Approach (ARCADIA) is used to describe a functional architecture. Consecutively, existing solutions are mapped to the architecture and evaluated for compliance. © 2023 IEEE.

关键词： Life cycle

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Explorative Study on Benchmarking Approaches for the Improvement of Corporate Greenhouse Gas Emissions

Explorative Study on Benchmarking Approaches for the Improve...

引用

2023 IEEE International Conference on technology and Entrepreneurship, ICTE 2023

作者： Budde, Felix Kidschun, Florian Fraunhofer Institute for Production Systems and Design Technology IPK Business Excellence Methods Berlin Germany

ISBN: (纸本)9798350303438

Using traditional benchmarking methods on the environmental impact of enterprises, carbon benchmarking aims to enable organizations to compare their individual carbon footprint with their peers. The insights gathered during that process allows enterprises to identify areas for improvement and make informed decisions about their carbon emissions using best practices from their industry section. This paper presents a systematic study of carbon benchmarking approaches and methodologies for the assessment, performance comparison and improvement of corporate greenhouse gas emissions. In a first step, a series of robust criteria are defined in order to respond to the specific requirements of effective carbon benchmarking, aiming for comparable and reliable results. Secondly, existing frameworks and methodologies for the assessment and performance comparison of greenhouse gas emissions (GHG) are explored through a systematic literature review. In a last step, the approaches identified are compared and evaluated by comparison group and scope. In this context, potential gaps are identified and further need for research in the field of corporate GHG reduction methods and approaches revealed. © 2023 IEEE.

关键词： Benchmarking

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Transdisciplinary Setup Guide for Automated Maintenance Training Generation in Virtual Reality from Virtual Commissioning 30

Transdisciplinary Setup Guide for Automated Maintenance Trai...

引用

30th ISTE International Conference on Transdisciplinary Engineering: Leveraging Transdisciplinary Engineering in a Changing and Connected World, TE 2023

作者： Quast, Sascha Konkol, Kathrin Fraunhofer Institute for Production Systems and Design Technology Ipk Department Extended Reality Berlin Germany

ISBN: (纸本)9781643684406

In automated production industries, qualified maintenance is important. Planning and executing complex practical maintenance training scenarios on real machines can be expensive. To reduce cost, virtual training simulations in Virtual Reality (VR) are slowly being established in the virtual commissioning sector, but implementation times can be long and costly when each new training scenario needs to be implemented manually. This paper describes the outcome of a three-year research project, which addressed an automated generation of gamified maintenance training in VR based on existing virtual commissioning scenarios instead of manually configuring the machine logic on an example in the automotive industry. With the project partners from the automotive and gaming industry, a demonstrator was created. The result is a transdisciplinary setup guide for three different user types: the commissioner, the trainer, and the trainee. The users are supported with a combination of automated functions and included descriptions to utilize VR without being VR experts. The first user, the commissioner, can generate a VR scene from virtual commissioning and connects them so that the real machine behavior of the virtual Programmable Logic Controller (PLC) and Numerical Control (NC) can be used in VR over the virtual Human Machine Interfaces (HMI) like touchscreens, buttons, and other machine parts. The trainer can configure training in this virtual commissioning scene for the maintenance trainee to use for virtual machine training. The demonstrator received positive feedback from key users of the automotive industry and should be tested for their training in the next steps. © 2023 The Authors.

关键词： E-learning

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Sustainable product lifecycle management with Digital Twins: A systematic literature review 33

Sustainable product lifecycle management with Digital Twins:...

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33rd CIRP design Conference

作者： Seegrün, Anne Kruschke, Thomas Mügge, Janine Hardinghaus, Louis Knauf, Tobias Riedelsheimer, Theresa Lindow, Kai Fraunhofer Institute for Production Systems and Design Technology IPK Pascalstraße 8-9 Berlin10587 Germany

A Digital Twin (DT) is a virtual replica of a product or product-service system, which can be used to provide transparency of a product's sustainability and to positively influence the ecological impact throughout its lifecycle by means of intelligent data analytics. This paper identifies current sustainability-focused application scenarios of DTs in the manufacturing industry and outlines the results of a systematic literature review (SLR). The identification of the state-of-the-art and the assessment of current DT concepts with regard to the addressed product lifecycle phases, technological maturity and sustainability scope point towards key directions to guide future research. © 2023 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (https://***/licenses/by-nc-nd/4.0)

关键词： Life cycle

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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...

引用

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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Determination of critical local straining conditions for solidification cracking at laser beam welding by experimental and numerical methods

Determination of critical local straining conditions for sol...

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94th Annual Meeting of the International Association of Applied Mathematics and Mechanics, GAMM 2024

作者： Bakir, Nasim Gumenyuk, Andrey Rethmeier, Michael Berlin Germany Technische Universität Berlin Berlin Germany Fraunhofer Institute for Production Systems and Design Technology IPK Berlin Germany

The phenomenon of solidification cracking has been the subject of numerous research projects over the years. Great efforts have been made to understand the fundamentals of hot cracking. It is generally agreed that solidification cracks form in the solidification range between the liquidus and solidus temperatures under the combination of thermal, metallurgical and mechanical factors. There is still a need to determine the time-resolved strain distribution in the crack-sensitive region in order to analyse the local critical conditions for solidification cracking phenomena. This was a strong motivation for the development of a measurement system used in this study to estimate the local strains and strain rates in the zone where the solidification crack is expected to occur. The laser beam welding experiments were conducted using the Controlled-Tensile-Weldability test (CTW test) to apply an external strain condition during welding to generate solidification cracks. The CTW test is a test method for investigating the susceptibility of laser-welded joints to solidification cracking, in which the sample can be subjected to a defined strain at a defined strain rate during welding. In combination with experimental investigations, numerical simulations provide spatially detailed and time-dependent information about the strain development during the welding process, especially regarding the critical conditions for solidification cracking. Therefore, this tool was also used in the present study to evaluate the accuracy of measurement methods and to estimate experimentally derived values and their concrete influence on the formation of solidification cracks. By integrating experimental methods and numerical simulations, this study investigates the spatially resolved and temporally changing development of strain during welding, with a particular focus on the critical conditions that lead to the formation of solidification cracks. The use of numerical simulations serves a dual p

关键词： Laser beam welding

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Automated manufacturing of drug-coated balloons for coronary artery disease 23

Automated manufacturing of drug-coated balloons for coronary...

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23rd International Conference of the European Society for Precision Engineering and Nanotechnology, EUSPEN 2023

作者： Uhlmann, E. Hein, C. Schlüter, S. Wang, Y. Dürre, G. Fraunhofer Institute for Production systems and Design Technology IPK Germany Institute for Machine Tools and Factory Management IWF Technical University Berlin Germany

ISBN: (纸本)9781998999132

Drug-coated balloons were established as an improvement for coronary angioplasty in recent years. However, due to the balloons' high manufacturing variance, coating them evenly is challenging. Therefore, production is still carried out at least partially manually. Within the framework of the presented research project, a four-axis machine kinematics has been developed, enabling even coating of balloon catheters of various sizes in a controlled climate. High-precision measurement using a confocal sensor allows for compensation for the manufacturing variance of the balloon catheter by means of surface mapping. The average coating thickness as well as its distribution can be determined similarly. Thus, in case of insufficient coating, local reapplication can be carried out. With the developed machine system, it is therefore possible to produce coating area densities in the range of 4 μg mm-2 -2 with minimal inhomogeneities. © 2023 Euspen Headquarters.

关键词： Coatings

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Implementation of a handling system for using carbon fibres as tool electrodes in micro-ED drilling 23

Implementation of a handling system for using carbon fibres ...

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23rd International Conference of the European Society for Precision Engineering and Nanotechnology, EUSPEN 2023

作者： Uhlmann, E. Polte, M. Yabroudi, S. Lezama, S. Institute for Machine Tools and Factory Management IWF Technische Universität Berlin Germany Fraunhofer Institute for Production Systems and Design Technology IPK Germany

ISBN: (纸本)9781998999132

Electrical discharge machining (EDM) processes represent an established process for the machining of complex geometries in hard to cut and electrically conductive materials. Nevertheless, micro-electrical discharge drilling still poses the challenge of machining holes with diameters dh ≤ 50 μm. The preparation of even smaller pin tool electrodes demands a great amount of non-productive time, which often involves the use of additional electrical discharge dressing processes for its manufacturing. A possible solution is the use of single carbon fibres with diameters 5 μm ≤ del ≤ 10 μm as tool electrodes. The use of these single fibres comprises a challenge due to their geometrical and mechanical properties, e.g. diameter and brittleness. To overcome this challenge, an existing handling system for carbon fibres was re-designed considering the obstacles that arose with the use of previous versions of such systems. This includes the replacement of the liquid rubber coating of the movable clamping jaw in order to use foam rubber to achieve a better distribution of the clamping force that establishes the electrical contact between the carbon fibre and a conducting copper plate. The geometry of the borosilicate glass micro-pipette was redesigned to ensure an accurate positioning of the carbon fibre due to its inner tip diameter 15 μm ≤ dt ≤ 35 μm and to enable the use of fibre electrodes with a length of 15 mm ≤ le ≤ 25 mm. This hinders the deflection of the fibre tip during the machining process and enables the precise guidance of the fibre. Furthermore, the developed handling system was implemented for performing single discharge experiments, in which parameters such as open circuit voltage, charge current and discharge capacity were varied in order to determine their influence on the material removal process. © 2023 Euspen Headquarters.

关键词： Rubber

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Characterisation and investigation of ion-implanted boron-doped single crystal diamonds as temperature sensor for ultra-precision machining 23

Characterisation and investigation of ion-implanted boron-do...

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23rd International Conference of the European Society for Precision Engineering and Nanotechnology, EUSPEN 2023

作者： Uhlmann, E. Polte, M. Hocke, T. Thißen, K. Fraunhofer Institute for Production Systems and Design Technology IPK Germany Institute for Machine Tools and Factory Management IWF Technische Universität Berlin Germany

ISBN: (纸本)9781998999132

Ultra-precision machining is a crucial manufacturing process for the production of optical components in automotive, medical and aerospace industry and enables high dimensional accuracies and low surface roughness values. Dedicated single crystal diamond tools enable the manufacturing of optical and functional surfaces such as mirrors or lenses. Despite the high mechanical hardness, temperature induced chemical wear of the diamond tools occures during the process. To characterise und interpret the wear behaviour of diamond tools, the cutting temperature needs to be analysed. At state of the art, there are no precise methods available for analysing temperatures in the cutting zone of a single crystal diamond tool in order to identify the wear behaviour online during the process. Therefore, a dedicated measurement system based on boron-doped CVD single crystal diamonds as temperature sensor was developed. The electrosensory features of the fully boron-doped diamonds enable a direct temperature measurement in the cutting zone. To enable high sensitive temperature measurements, ion-implantation was used for partial and specific boron-doping close to the cutting edge of single crystal diamonds. To fundamentally evaluate the quality of the doping and contacting structures as well as the general process of the ion-implantation three different doping structures were investigated using single crystal diamond blanks prior doping the cutting tools. For this purpose, the boron-doped structures were optically characterised and the correlations between the resistances and the temperatures were evaluated as a function of different doping-levels and doping-lengths. First results show the successful application of the ion-implantation for boron-doping of single crystal diamonds. It could be proven that the selected boron-levels as well as boron-lengths lead to different initial conditions of the analysed specimens. Dedicated ionimplantation of single crystal diamond tools represents

关键词： Surface roughness

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