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Holistic Approach for Human Resource Management in Industry 4.0

Procedia CIRP 2016年 54卷 1-6页

作者： Fabian Hecklau Mila Galeitzke Sebastian Flachs Holger Kohl Fraunhofer Institute for Production Systems and Design Technology IPK Pascalstr. 8-9 10587 Berlin Germany Technische Universität Berlin Straße des 17. Juni 135 10623 Berlin Germany

To cope with knowledge and competence challenges related to new technologies and processes of Industry 4.0 new strategic approaches for holistic human resource management are needed in manufacturing companies. Due to the continuous automation of simple manufacturing processes, the number of workspaces with a high level of complexity will increase, which results in the need of high level of education of the staff. The challenge is to qualify employees to shift their capacities to workspaces with more complex processes and ensure the retention of jobs in changing working environments. A strategic approach for employee qualification is described in this contribution.

关键词： Industry 4.0 human resource management competence development qualification

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Effects of Different Cutting Edge Preparation Methods on Micro Milling Performance

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Procedia CIRP 2016年 46卷 352-355页

作者： E. Uhlmann D. Oberschmidt Y. Kuche A. Löwenstein I. Winker Institute for Machine Tools and Factory Management (IWF) Technische Universität Berlin Pascalstraße 8–9 10587 Berlin Germany Fraunhofer Institute for Production Systems and Design Technology (IPK) Pascalstraße 8–9 10587 Berlin Germany

In micro milling, which is mostly used in mold and die making, process reliability and predictability of tool failure are important. Particularly in precision and micro machining, tool breakage is hardly detectable and the requirements on accuracy are very high. Immersed tumbling is an appropriate process for the defined cutting edge preparation of micro milling tools. Its effects like increasing tool wear performance and tool life has been evaluated. In this paper, different cutting edge preparation processes showed that in cutting tests different effects occur regarding tool wear, process forces and surface quality. Immersed tumbling leads to the lowest active force F a , but magnet finishing leads still do a slightly better surface quality.

关键词： Cutting edge preparation micro milling process reliability

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Success factors and organizational approaches for the implementation of energy management systems according to ISO 50001

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TQM Journal 2015年第4期27卷 361-381页

作者： Karcher, Phillip Jochem, Roland Division Quality Management Fraunhofer Institute for Production Systems and Design Technology IPK Berlin Germany Quality Science Department Technische Universität Berlin Berlin Germany

Purpose - The purpose of this paper is to identify main success factors for the effective implementation, operation and certification of an energy management system (EnMS) in accordance with ISO 50001, which represents the fastest growing standard for management systems in the world (International Organization for Standardization, 2013). design/methodology/approach - Due to rising energy costs, increasing global competitive pressure and the demand for environmentally friendly products companies all over the world consider the implementation of an EnMS to meet future challenges. For that reason a survey ( Jochem et al., 2013) among already certified German companies has been conducted focussing on organizational, teambuilding and technical aspects. Findings - Results indicate that EnMSs are most commonly built on already existing management structures and therefore staff organization is crucial for the success of the project. Still, monetary aspects such as energy related cost savings seem to be the decisive criterion for the operation of an EnMS. Regarding teambuilding aspects specific technical expertise is required which leads to crossfunctional teams focussing on the field of production. In addition key technical and administrative measures for an effective EnMS were identified. Originality/value - The study provides best practice knowledge and gives interested companies the advantage to benefit from both the positive experiences of the participants as well as to prevent potential contra productive activities during the implementation, certification and operation of an EnMS.

关键词： Energy management systems

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Influence of Cutting Edge Preparation on the Performance of Micro Milling Tools

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Procedia CIRP 2016年 46卷 214-217页

作者： E. Uhlmann D. Oberschmidt A. Löwenstein Y. Kuche Institute for Machine Tools and Factory Management (IWF) Technische Universität Berlin Pascalstraße 8-9 10587 Berlin Germany Fraunhofer Institute for Production Systems and Design Technology (IPK) Pascalstraße 8-9 10587 Berlin Germany

A main reason for premature tool failure in micro milling is the irregular wear behavior of the cutting tools. An approach to improve the tool wear behavior is a defined cutting edge preparation using immersed tumbling. A particular challenge is the cutting edge preparation of micro milling tools with small diameters D ≤ 0.5 mm. High loads within the preparation process can lead to outbreaks of the cutting edge and tool breakage. Furthermore, the influence of changed cutting edge geometry regarding the process behavior has to be more examined for these tool diameters. In this paper, micro milling tools with a diameter D = 0.2 mm will be prepared and the influence on the cutting process will be presented and discussed. The experiments will show a better wear behavior for the prepared tools and an improved surface roughness on the machined workpiece.

关键词： micro milling cutting edge wear machining

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Online platform for conducting responsible research and innovations

Online platform for conducting responsible research and inno...

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International Conference on Research Challenges in Information Science, RCIS

作者： Mohamad Ajami Louisa Grabner Giovanni Giambene Van Le Doanh Luong John Pearson Automation Technology Fraunhofer-Institute for Production Systems and Design Technology (IPK) Berlin Germany Department of Information Engineering and Mathematical Sciences University of Siena Siena Italy Faculty of Computer Science University of Namur Namur Belgium

ISBN: (纸本)9781479987115

This paper deals with the implementation of an online platform for Responsible Research and Innovation (RRI), which provides anticipatory and deliberative tools to address societal expectations with regard to resrarch and innovation and mobilises information technology tools for inclusive, responsive and sustainable research. In particular, we have developed a Forum, which is a Web-based application and service for stakeholders (members of the RRI community) to deliberate and discuss about RRI. Different interaction modalities are supported by the Forum, such as: `Caucus Process', Suggestion Board, Partnership Initiative, etc. A special attention is devoted to the Citizen Jury and Tacit Knowledge modules that represent innovative features of our Forum. The outcomes show that our online Forum represents an effective solution to address RRI issues by adopting e-Government and knowledge management approaches. This work was carried out as part of EU FP7 Responsibility project.

关键词： Rail to rail inputs Technological innovation Stakeholders Electronic mail Electronic government Knowledge management Computer science

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Machining of Hygroscopic Materials by High-pressure CO 2 Jet Cutting

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Procedia CIRP 2016年 48卷 57-61页

作者： Eckart Uhlmann Martin Bilz Johannes Mankiewicz Simon Motschmann Patrick John Fraunhofer Institute for Production Systems and Design Technology (IPK) Pascalstraße 8-9 Berlin 10587 Germany Institut für Werkzeugmaschinen und Fabrikbetrieb (IWF) TU-Berlin Pascalstraße 8-9 Berlin 10587 Germany

Cutting with a high-pressure CO 2 jet has the potential for a dry and residue-free machining of hygroscopic materials. An experimental system for continuous CO 2 high-pressure jets at atmospheric conditions was developed. The high-pressure liquid CO 2 expands into atmospheric pressure after exiting the nozzle and changes to gas and particles and can be used for the machining of parts and surfaces. The investigations led to first expertises for the continuous jet cutting with high pressure CO 2 at atmospheric conditions with jet pressures of up to 3000 bar. Commercial blasting plants are not available yet and only research institutes hold prototypes and experimental systems. During the technological examinations the mass flow and impulse forces of CO 2 and high-pressure water jets were determined and compared experimentally. Identical cutting tests were carried out with polyurethane. Principal similarities are shown in the produced cutting surfaces and grooves of both processes. The experiments indicated that the effects of the individual blasting parameters are identical to the impulse force and groove depth for both processes. The high-pressure CO 2 jet offers a dry and residue-free machining of hygroscopic materials. The process can be integrated decentralized and directly into production lines. According to the current knowledge, the limitation for the cutting of materials, depending on the thickness of the workpiece, is a maximum hardness of 60 Shore D at a maximum density of 600 g/cm 3 . Thus, the process is currently limited to the processing of synthetic and natural materials.

关键词： Cutting Machine tool Manufacturing

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Two-axis vibration system for targeted influencing of micro-milling 15

Two-axis vibration system for targeted influencing of micro-...

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15th International Conference of the European Society for Precision Engineering and Nanotechnology, EUSPEN 2015

作者： Uhlmann, E. Perfilov, I. Oberschmidt, D. 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)9780956679079

Micro milling is a well-established manufacturing process for mould and die industry, which gains an increasing scope of usage for medical and biotechnical components and applications. Apart from manufacturing of microsystems, micro milling is also being applied for production of function-oriented surfaces, which improves the component functionality. The influence on surface topography and surface roughness in the process of micro milling can be achieved by means of targeted high-frequency vibration of a workpiece. There was developed a system to perform vibration assisted micro milling, which excites a workpiece in two directions horizontally to the spindle axis. For exploring of vibration assisted micro milling there was developed a system which excites the high-frequency vibration of a workpiece in two directions horizontally to the spindle axis. Frequency, amplitude and phase shift of the oscillation are controlled in accordance to the rotational angle of the machine tool spindle. Therefore, a closed loop control of a workpiece actuation considering the actual spindle speed is implemented. The system enables 2 DOF vibration assisted milling up to f = 10 kHz with a maximum amplitude of a = 7,5 μm. With usage of necessary industrial hardware vibration assisted micro milling offers a new and fast way of process optimization and surface structuring. This paper presents detailed information on the device for vibration assisted micro milling and the results of the milling tests in order to show the high potential for further research activities in the area.

关键词： Milling (machining)

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New machine tool concept for two-side ultra-precision machining 15

New machine tool concept for two-side ultra-precision machin...

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15th International Conference of the European Society for Precision Engineering and Nanotechnology, EUSPEN 2015

作者： Uhlmann, E. Oberschmidt, D. Polte, J. Polte, M. Guhde, S. 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)9780956679079

The requirements regarding workpiece surface quality, geometrical and positional accuracy as well as tolerances for linear and angular dimensions are increasing. Furthermore, the machine technology limits and defines the manufacturing quality directly. Hence, the fraunhofer institute FOR PRODUCTION SYSTEMS AND design technology ipk AND THE institute FOR MACHINE TOOLS AND FACTORY MANAGEMENT IWF of the TU Berlin have developed a new machine tool concept for ultra-precision machining. This enables two-side machining of the front surfaces of optical elements. The concept aims at increasing the economic efficiency of ultra-precision machining.

关键词： Machine tools

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Cutting of steel X13NiMnCuAl4-2-1-1 with micro milling tools using a defined cutting edge preparation 15

Cutting of steel X13NiMnCuAl4-2-1-1 with micro milling tools...

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15th International Conference of the European Society for Precision Engineering and Nanotechnology, EUSPEN 2015

作者： Uhlmann, E. Oberschmidt, D. Loewenstein, A. Kuche, Y. Winker, I. 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)9780956679079

An approach to improve the wear behaviour of micro milling tools is a defined cutting edge preparation applying immersed tumbling. In experimental investigations a 3-axes machine tool is used to analyze the influence of the wear behaviour of prepared micro milling tools with diameters D = 0.2 mm made of cemented carbide. During machining of steel X13NiMnCuAl4-2-1-1 the process behaviour is analyzed, the cutting forces Fc in the milling process are examined and the surface roughness of the workpiece is measured.

关键词： Milling (machining)

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A chemical consideration of binderless-cBN as cutting material for ultra-precision turning 15

A chemical consideration of binderless-cBN as cutting materi...

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15th International Conference of the European Society for Precision Engineering and Nanotechnology, EUSPEN 2015

作者： Uhlmann, E. Sturm, H. Oberschmidt, D. Polte, J. Polte, M. Lorenz, D. Frenzel, S. Fraunhofer Institute for Production Systems and Design Technology IPK Germany Institute for Machine Tools and Factory Management IWF Technische Universität Berlin Germany Germany

ISBN: (纸本)9780956679079

Ultra-precision cutting of stainless steel with diamond as cutting material needs modification of the workpiece material or special equipment for vibration assisted machining. In this paper detailed information about the chemical reaction for direct cutting of stainless steel with binderless-cBN while turning is given. The effect of lubricant on the wear of binderless-cBN is shown and confocal Raman spectroscopy with confocal imaging was done on the cutting tools.

关键词： Stainless steel

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