检索结果-内蒙古大学图书馆

Creating digital products in engineering companies – a practitioner’s review

Procedia CIRP 2021年 100卷 205-210页

作者： Eike Permin Thomas Vollmer Dennis Grunert Robert Schmitt SMS digital GmbH Eduard-Schloemann-Str. 4 40237 Düsseldorf Germany Fraunhofer-Institute for Production Technology Steinbachstraße 17 52074 Aachen Germany Laboratory for Machine Tools and Production Engineering (WZL) of RWTH Aachen University Steinbachstraße 19 52074 Aachen Germany

German engineering companies with their focus on mechanical solutions and technical excellence are currently going through a major change in their value creation – digitalization of products processes and the digital transformation of the entire organization. Comparable to the introduction of service-oriented business twenty years ago, digitalization comprises the opportunity to enhance the existing offer portfolio in terms of product individualization, reduced scrap or lead times, but at the same time creates extremely deviating requirements regarding innovation management, business models, commercial structures as well as company culture. At the same time, successful examples from the consumer industry or best practices in general cannot be applied as a one-to-one copy due to the different market situation and boundary conditions. This paper thus reviews the major challenges engineering companies are currently facing. It evaluates existing models and approaches from the consumer industry with respect to their applicability in engineering and finally provides best practices and examples from the EPC (Engineering, Procurement, Construction) market as well as their implementation strategy.

关键词： digitalization business apps business models development customer-centered innovation marketing scalability implementation partnering

来源：评论

学校读者我要写书评

暂无评论

Potentials and challenges of Smart Products and related business models

Potentials and challenges of Smart Products and related busi...

引用

2020 IEEE International Conference on Engineering, technology and Innovation, ICE/ITMC 2020

作者： Wang, Wei Min Lunnemann, Pascal Klemichen, Antje Bluher, Till Stark, Rainer Technische Universität Berlin Department for Machine Tools and Factory Management Pascalstr. 8-9 Berlin10587 Germany Fraunhofer-Institute for Production Systems and Design Technology Department for Virtual Product Creation Pascalstr. 8-9 Berlin10587 Germany

ISBN: (纸本)9781728170374

Smart products are increasingly penetrating the market. They extend cyber-physical systems with Internet-based services and thus enable customer-specific adaptations and updates of products in the field. For industrial companies, smart product offering bear the potential to expand their product portfolios and increase their sales. In this article, the results of a survey among German engineers are presented that evaluated the actual state of adoption and future expectations regarding smart products in German industrial companies. The results show that the majority of German companies have recognized the potentials of smart products and also introduced such offerings in their portfolio. In this context, it is also expected that the product-related usage data will lead to a more individual communication with the customer. On the other hand, there is a high degree of uncertainty among companies regarding the adaptation of new business models, cooperation with an increasing number of partners, data management and the necessary technological infrastructure. These uncertainties can result in companies leaving potentials unexploited and opening up opportunities for new market participants. In summary, there seems to be a remaining gap between the willingness to abandon traditional business models and the expectations and strategies for future value creation. © 2020 IEEE.

关键词： Cyber Physical System

来源：评论

学校读者我要写书评

暂无评论

Automotive hybrid design production and effective end machining by novel abrasive waterjet technique

引用

Procedia CIRP 2021年 101卷 374-377页

作者： M. Schüler D. Heidrich T. Herrig X.F. Fang T. Bergs Fraunhofer Institute for Production Technology IPT Steinbachstraße 17 52074 Aachen Germany University of Siegen - Institute of Automotive Lightweight Design Breite Strasse 11 57076 Siegen Germany Laboratory for Machine Tools and Production Engineering (WZL) of RWTH Aachen University Campus-Boulevard 30 52074 Aachen Germany

Hybrid designs with the combination of metal and long fiber reinforced thermoplastics (LFT) offer a great opportunity to reduce component weight for automotive applications. Production costs are typically high due to complex processes and challenging end machining. A complete manufacturing process chain for simultaneous hybrid design production is presented. Hybrid forming, a manufacturing process combining metal sheet forming, LFT compression molding and bonding, was developed to manufacture an automotive lightweight component, finally end machined by innovative waterjet techniques. Besides optimizing waterjet end machining strategies, waterjet controlled-depth machining was used to remove LFT material selectively, resulting in increased hybrid production flexibility.

关键词： Waterjet machining Abrasion Abrasive Properties

来源：评论

学校读者我要写书评

暂无评论

THE BIOMECHANICAL STABILITY OF A NOVEL BIOABSORBABLE MAGNESIUM ALLOY (ZX00:Mg–Zn–Ca) BONE ANCHOR FOR ROTATOR CUFF REPAIRS: A HUMAN EX VIVO STUDY

引用

Journal of Musculoskeletal Research 2025年第1期28卷

作者： Kinsky, Rudolf Maximilian Schleifenbaum, Stefan Honea, Maxim Siegert, Paul Hammer, Niels Fischerauer, Stefan Franz Weinberg, Annelie Wurnig, Christian Sanatorium Hera Loeblichgasse 14 Vienna 1090 Austria Department of Orthopedic Trauma and Plastic Surgery Semmelweisstraße 14 Raum-1322 (Sockelgeschoss) Leipzig D-04103 Germany Institute of Materials Science Joining and Forming Technical University of Graz Rechbauerstraße 12 Graz 8010 Austria Orthopaedic Hospital Speising 109 Speisingerstrasse Vienna 1130 Austria Division of Macroscopic and Clinical Anatomy Gottfried Schatz Research Center Medical University of Graz Auenbruggerplatz 25 Graz 8036 Austria Fraunhofer Institute for Machine Tools and Forming Technology Nöthnitzer Str. 44 Dresden 01187 Germany Department of Orthopaedic Trauma and Plastic Surgery University Clinics of Leipzig Liebigstr. 27 Leipzig 04109 Germany University Clinic f. Orthopaedics und Traumatology Medical University Graz Auenbruggerplatz 5 Graz 8036 Austria Musculo-Skeletal Research Unit for Biomaterials Department of Orthopaedics Trauma Medical University of Graz Auenbruggerplatz 5 Graz 8036 Austria

Introduction: The purpose of this study was to ascertain the primary ex vivo biomechanical stability of a novel bioabsorbable magnesium alloy (ZX00: Mg–Zn–Ca) bone anchor in human cadaveric proximal humeri, indicated in the reconstruction of the rotator cuff. Methods: Twenty human Thiel-embalmed cadaveric humeri were prepared and freed from soft tissue. One ∅5.7 × 20.5-mm ZX00 anchor and one ∅5.5 mm × 16.3 mm Arthrex Titanium FT Corkscrew (ATC) control anchor were inserted into the footprint of the supraspinatus tendon, 15 mm apart. The humeri were mounted onto a material testing machine and following a 40 N preload, cyclic loading was performed over 400 cycles. If the construct remained intact, ultimate load to failure (ULTF) was measured using an increasing axial load of 1 mm/s, ULTF and mode of failure were recorded. Results: No difference was found in the ability to withstand cyclic loading, mode or load-to-failure strengths between ZX00 and control anchors. The maximum tractional force loaded for the ZX00 anchors had a median of 257.4 N (range 165.3–328.2). The corresponding value for the ATC anchors averaged 239.9 N (range 118.9–306.7). Conclusion: ZX00 alloy anchors appear to provide adequate initial biomechanical stability when compared to an industry-standard control in a cadaveric rotator cuff repair model. © 2025 The Author(s)

关键词： Absorbable implants Alloys Magnesium Rotator cuff tear Arthropathy Shoulder injuries

来源：评论

学校读者我要写书评

暂无评论

Application of biological transformation to foster positive urban production

引用

Procedia CIRP 2020年 90卷 2-9页

作者： Christoph Herrmann Lennart Büth Max Juraschek Tim Abraham Lothar Schäfer Chair of Sustainable Manufacturing & Life Cycle Engineering Institute of Machine Tools and Production Technology Technische Universität Braunschweig Germany Fraunhofer Institute for Surface Engineering and Thin Films Braunschweig Germany

Urbanization and the limited environmental carrying capacity of our planet are crucial challenges for human kind. Industrial value creation and the production of goods have a significant role in the worldwide emissions pattern. A biologically oriented conception of technical systems with the goal of a sustainable added value is summarized as “biological transformation”. By bringing together the concentration of consumption, waste generation and more, in urban areas, with the biologicalisation of industrial value creation an opportunity arises to actively create bio-based positive urban production. Based on the principles of the biological transformation a framework is derived, stretching the design space between spatial urban levels and production life cycle stages, thereby fostering positive bio-based urban production. The design space is then applied, allocating current realization and envisioned cases as well as giving recommendations for future research topics.

关键词：

来源：评论

学校读者我要写书评

暂无评论

Environmental and technical evaluation of additive manufacturing: Enabling process chain perspective by energy value stream mapping

引用

Procedia CIRP 2022年 105卷 440-445页

作者： Mathias Wiese Christopher Rogall Nadja Henningsen Christoph Herrmann Sebastian Thiede Polymer Additive Manufacturing Center AUDI AG Auto-Union-Straße 1 Ingolstadt 85045 Germany Chair of Sustainable Manufacturing and Life Cycle Engineering Institute of Machine Tools and Production Technology Technische Universität Braunschweig Langer Kamp 19b Braunschweig 38106 Germany Fraunhofer Institute for Surface Engineering and Thin Films (IST) Bienroder Weg 54 E Braunschweig 38108 Germany Manufacturing Systems Faculty of Engineering Technology Department of Design Production & Management University of Twente De Horst 2 Building 20 Enschede 7522 LW The Netherlands

Additive manufacturing (AM) currently evolves from a prototyping process to an alternative manufacturing process for end-use parts, advancing into fabrication of low to medium product volumes. Moreover, increasing awareness of environmental impacts of manufacturing lead to the necessity of holistic evaluation among traditional evaluation criteria in the technical and economic domains. However, existing evaluation approaches seldom consider a complete AM process chain and are lacking a production-oriented notation which enables comparability across technologies and support in identification of improvement potentials on technical and environmental level. To address this gap, this paper highlights the way from structured data acquisition to setup of an energy value stream map (EVSM) for AM process chains in end-use part production, augmenting methods of lean manufacturing by the energy dimension. Consequently, it contributes to a holistic and transparent process chain perspective to assess AM as a manufacturing alternative. The proposed methodology is applied to a case study covering two different process chains, a first based on powder bed fusion via Multi-jet Fusion (MJF) and a second utilizing vat-photopolymerization via Continuous Liquid Interphase Printing (CLIP). While the MJF process chain’s energetical hot spot is situated in the printing process itself, the hot spot for CLIP is found in thermal post-processing, exceeding the comparably efficient printing process by magnitudes and ultimately resulting in higher energy intensity per part compared to the MJF process chain. These results highlight the necessity of a holistic evaluation method for complete AM-based process chains and their influence on the product properties. Insights may help engineers, designers and decision makers in pre-selection of suitable manufacturing strategies with a more complete view on AM process chains.

关键词： Additive manufacturing rapid manufacturing process chains value stream mapping sustainable manufacturing decision support

来源：评论

学校读者我要写书评

暂无评论

Implementation of the machine Tool-Specific Current and Voltage Control Characteristics in Multiphysics Simulation of Electrochemical Precision Machining

引用

Procedia CIRP 2019年 82卷 237-242页

作者： Ingo Schaarschmidt Matthias Hackert-Oschätzchen Gunnar Meichsner Mike Zinecker Andreas Schubert Professorship Micromanufacturing Technology Chemnitz University of Technology 09107 Chemnitz Germany Fraunhofer Institute for Machine Tools and Forming Technology IWU 09126 Chemnitz Germany

In this study a multiphysics simulation model of the pulsed electrochemical machining (PECM) with oscillating cathode is shown. The focus of this study is on the implementation of machine tool-specific control characteristics in combination with physical phenomena and material removal. As a result, the implementation of the machine tool control characteristics leads to an increase of simulation accuracy of the multiphysics model. The simulation results are compared with results of previous simulations and experimental investigations.

关键词： Electrochemical machining (ECM) Material removal High strength steel

来源：评论

学校读者我要写书评

暂无评论

Influence of Part Geometry and Feature Size on the Resulting Microstructure and Mechanical Properties of the Case Hardening Steel 16MnCr5 processed by Laser Powder Bed Fusion

引用

Procedia CIRP 2021年 104卷 726-731页

作者： Matthias Schmitt Florian Gerstl Max Boesele Max Horn Georg Schlick Johannes Schilp Gunther Reinhart Fraunhofer-Institute for Casting Composite and Processing Technology IGCV Am Technologiezentrum 10 D-86159 Augsburg Germany University of Augsburg Chair of Digital Manufacturing Faculty of Applied Computer Sience Eichleitnerstr. 30 D-86159 Augsburg Germany Institute for Machine Tools and Industrial Management (iwb) Technical University of Munich D-85748 Garching Germany

Additive manufacturing, especially laser powder bed fusion (LPBF), allows the build-up of complex parts. However, the resulting microstructure is not only influenced by the manufacturing parameters but also by the part geometry due to the influence on heat dissipation. At first, six geometric features are identified which can affect heat dissipation. Geometric samples of a case-hardening steel are produced via LPBF. Analysis of the microstructure and the mechanical properties show that the cross-sectional area and overhang angles have significant influence resulting in a hardness differences of more than 90 HV while increasing the ferrite content with increasing overhang angles. For further investigation, the results are analytically linked to the part density.

关键词： case-hardening steel 16MnCr5 influence of geometry microstructure heat dissipation

来源：评论

学校读者我要写书评

暂无评论

Production rescheduling through product quality prediction

引用

Procedia Manufacturing 2021年 54卷 142-147页

作者： Maik Frye Dávid Gyulai Júlia Bergmann Robert H. Schmitt Fraunhofer Institute for Production Technology (IPT) Steinbachstraße 17 52074 Aachen Germany EPIC Centre of Excellence in Production Informatics and Control Institute for Computer Science and Control (SZTAKI) 13-17 Kende Budapest 1111 Hungary Laboratory for Machine Tools WZL RWTH Aachen University Steinbachstraße 19. 52074 Aachen Germany

In production management, efficient scheduling is key towards smooth and balanced production. Scheduling can be well-supported by real-time data acquisition systems, resulting in decisions that rely on actual or predicted status of production environment and jobs in progress. Utilizing advanced monitoring systems, prediction-based rescheduling method is proposed that can react on in-process scrap predictions, performed by machine learning algorithms. Based on predictions, overall production can be rescheduled with higher efficiency, compared to rescheduling after completion of the whole machining process with realization of scrap. Series of numerical experiments are presented to demonstrate potentials in prediction-based rescheduling, with early-stage scrap detection.

关键词： machine Learning Production Scheduling Product Quality Prediction Data Quality

来源：评论

学校读者我要写书评

暂无评论

Demand-oriented barriers and potentials for remanufacturing in Vietnam

引用

International Journal of Sustainable Manufacturing 2020年第2-4期4卷 336-349页

作者： Guidat, Thomas Wewer, Aleksandra Kohl, Holger Seliger, Günther Department of Machine Tools and Factory Management Technische Universität Berlin Pascalstraße 8-9 Berlin10587 Germany Vietnamese German University Lê Lai Đinh Hoà Thů Dâu Môt Bình Dương Viet Nam Fraunhofer Institute for Production Systems and Design Technology IPK Pascalstraße 8-9 Berlin10587 Germany

Since the liberalisation of its economy, Vietnam has emerged as a key location for investment in workforce-intensive assembly processes operation, through an available and cheap workforce. Soaring national consumption levels for goods and services generate in turn unprecedented quantities of waste to be treated locally. In 2015, governmental decision 16/2015/QĐ-TTg set a basis for a national waste legislation for mechanical and electronic equipment goods. Remanufacturing is a non-destructive, industrial reuse strategy which aims at restoring products to original specifications by reusing a maximum number of original components in their current form. It has potential to provide Vietnam with an alternative to low value-added repair activities. As Vietnam is the fourth market for motorcycles in the world, this paper presents a case study about barriers and potentials for remanufacturing from the market and customer perspective. Potential solutions for supporting industrial development are suggested. © 2020 Inderscience Enterprises Ltd.

关键词： Motorcycles

来源：评论

学校读者我要写书评

暂无评论

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案：

请选择收藏分类：

通借通还

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：