Procedia CIRP最新文献_第4页

Additively manufactured vacuum grippers for the flexible handling and assembly of hairpin coils in electric motor production 用于在电机生产中灵活搬运和装配发夹线圈的快速制造真空机械手

Procedia CIRP Pub Date : 2024-01-01 DOI: 10.1016/j.procir.2024.07.003

Felix Fraider, Michael Baranowski, Johannes Gerner, Chiara Cassiani, Philipp Geis, Felix Wirth, Jürgen Fleischer

{"title":"Additively manufactured vacuum grippers for the flexible handling and assembly of hairpin coils in electric motor production","authors":"Felix Fraider, Michael Baranowski, Johannes Gerner, Chiara Cassiani, Philipp Geis, Felix Wirth, Jürgen Fleischer","doi":"10.1016/j.procir.2024.07.003","DOIUrl":"10.1016/j.procir.2024.07.003","url":null,"abstract":"<div><div>Hairpin technology has recently become the predominant winding technology for the manufacturing of stators used in electric traction motors. In contrast to conventional winding techniques, the manufacturing process chain is based on rectangular wire which is bent into a three-dimensional U-shape – so-called hairpin coils. These hairpin coils have to be individually gripped and assembled to form the stator winding. There can be hundreds of hairpin coils in a single stator, which can also differ in shape. Therefore, gripping and moving the individual hairpin coils is a challenging task in terms of flexibility and cycle time. This paper presents an approach to meet the outlined requirements using additively manufactured vacuum grippers. A concept is investigated in which the vacuum is generated in a conventional vacuum ejector and fed to the vacuum gripper via hose lines. In contrast, the concept of a functionally integrated vacuum gripper manufactured by a new laser-sintering process with automated continuous fibre reinforcement is presented. Based on the laser-sintering process, a lightweight vacuum gripper with an integrated vacuum ejector can be manufactured in a single process step without additional costs for purchased parts. After a review of the state of the art in both hairpin-specific and additively manufactured lightweight grippers, experimental test series are carried out concerning the vacuum quality and the grip strength of the different vacuum gripper designs. Pull-off tests show that high holding forces of several Newtons are possible proving the basic usability of vacuum grippers for hairpins, even though the achievable vacuum quality of the functionally integrated vacuum gripper is lower than that of the conventional ejector. Comparison of the novel approaches with a conventional mechanical hairpin gripper regarding weight, production costs and production time show promising improvements.</div></div>","PeriodicalId":20535,"journal":{"name":"Procedia CIRP","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142426808","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Multi-sensor data fusion framework and validation of algorithms with reference datasets 多传感器数据融合框架和利用参考数据集验证算法

Procedia CIRP Pub Date : 2024-01-01 DOI: 10.1016/j.procir.2024.10.024

Louis-Ferdinand Lafon , Alain Vissière , Charyar Mehdi-Souzani , Hichem Nouira , Nabil Anwer

{"title":"Multi-sensor data fusion framework and validation of algorithms with reference datasets","authors":"Louis-Ferdinand Lafon , Alain Vissière , Charyar Mehdi-Souzani , Hichem Nouira , Nabil Anwer","doi":"10.1016/j.procir.2024.10.024","DOIUrl":"10.1016/j.procir.2024.10.024","url":null,"abstract":"<div><div>Spatial data fusion algorithms are widely applied in dimensional metrology for quality assessment or surface reconstruction. Multi-sensor point cloud fusion combines the advantages of multiple sensors by merging their measurements into a single coordinate system and reducing the prediction uncertainty and systematic errors. Algorithms designed for these tasks employ many methods that require thorough evaluations through a common framework. To address this need, this paper proposes a framework for simultaneous registration and approximation, and introduces a reference data generator for unbiased evaluations of data fusion algorithms with heterogeneous and anisotropic noise assumptions for applications involving multiple sensors. The bias for the generated reference data is evaluated close to floating point accuracy, which validates the generation method, and uncertainty evaluation on ICP variants reveals that reference data is more suitable to evaluate point cloud fusion algorithms. The proposed framework and data generator allows developing and validating more accurate data fusion algorithms.</div></div>","PeriodicalId":20535,"journal":{"name":"Procedia CIRP","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142555679","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Facilitating circularity: challenges and design guidelines of Product-as-a-Service (PaaS) business model offers for electrical and electronic equipment 促进循环：电气和电子设备产品即服务（PaaS）商业模式的挑战和设计指南

Procedia CIRP Pub Date : 2024-01-01 DOI: 10.1016/j.procir.2024.03.037

J. Hidalgo-Crespo , Andreas Riel , Paulina Golinska-Dawson , Jef R. Peeters , Karolina Werner-Lewandowska , Joost R. Duflou

{"title":"Facilitating circularity: challenges and design guidelines of Product-as-a-Service (PaaS) business model offers for electrical and electronic equipment","authors":"J. Hidalgo-Crespo , Andreas Riel , Paulina Golinska-Dawson , Jef R. Peeters , Karolina Werner-Lewandowska , Joost R. Duflou","doi":"10.1016/j.procir.2024.03.037","DOIUrl":"10.1016/j.procir.2024.03.037","url":null,"abstract":"<div><div>The move towards a circular economy brings a range of practical challenges for product and service designers that will need to facilitate this transformation from a linear take-make-dispose model to a more circular model. The concept of Product-as-a-Service (PaaS) emerges as an innovative business model capable of catalyzing this fundamental shift. In a PaaS context, any product will be used by several different customers during its lifetime through different operational methodologies and value delivery mechanisms, so incorporating circularity into both product and service design is pivotal for the establishment of more sustainable product-service systems. To facilitate circularity, it is imperative to be able to close loops in the current PaaS offerings by the development of reuse, refurbishment, repair, remanufacturing, and recycling. However, different challenges arise from each of them, which translate into different design guidelines. With the help of the literature and through a cooperative ERA-MIN project, different expert partners provided their insights on the proposed PaaS offering for electrical and electronic equipment (EEE). The objective of this paper is to present the main challenges and describe the design guidelines derived from them.</div></div>","PeriodicalId":20535,"journal":{"name":"Procedia CIRP","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142437631","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Framework for Designing Quality-Centered Assistance Systems for the Smart Factory 为智能工厂设计以质量为中心的辅助系统的框架

Procedia CIRP Pub Date : 2024-01-01 DOI: 10.1016/j.procir.2024.03.017

Rieke Leder , Ann-Kathrin Rohde , Nicolas Jathe , Michael Lütjen , Michael Freitag

{"title":"Framework for Designing Quality-Centered Assistance Systems for the Smart Factory","authors":"Rieke Leder , Ann-Kathrin Rohde , Nicolas Jathe , Michael Lütjen , Michael Freitag","doi":"10.1016/j.procir.2024.03.017","DOIUrl":"10.1016/j.procir.2024.03.017","url":null,"abstract":"<div><div>Employee assistance systems are essential for companies to manage the growing complexity of information and processes. However, current systems mainly provide process-oriented support through documentation options, leaving a gap in real-time quality assessment. Real-time or in-process quality assessment becomes increasingly attractive for large and complex components where automated inspection is not feasible. To fill this gap, this paper proposes a new modeling framework for quality-centric assistance systems that are tailored to the Smart Factory environment. The framework integrates digital design principles, standard manufacturing processes, and quality parameters, facilitating seamless integration and standardized data exchange. An expert evaluation of the framework yielded positive ratings across various dimensions, underscoring its potential impact. Feedback from experts indicated the need for further refinement, including enhancing credibility through implementation and field tests, providing more detailed procedure models, and addressing challenges in sensor integration. Overall, this framework represents a significant advancement towards process-oriented assistance in various application areas, with implications for optimizing production and quality processes.</div></div>","PeriodicalId":20535,"journal":{"name":"Procedia CIRP","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142437635","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Comparative analysis of topology optimization versus material substitution: Is there a best method for vehicle weight reduction? 拓扑优化与材料替代的比较分析：是否有减轻车重的最佳方法？

Procedia CIRP Pub Date : 2024-01-01 DOI: 10.1016/j.procir.2024.06.013

Gibson P. Chirinda , Stephen Matope , Philani Zincume , Whisper Maisiri , Andreas Sterzing

引用次数: 0

Prototyping Industry 4.0: The Case of an Automated Stapler for Acoustic Slat Panel Production 工业 4.0 原型：用于隔音板生产的自动订书机案例

Procedia CIRP Pub Date : 2024-01-01 DOI: 10.1016/j.procir.2024.06.015

Sander Evenrud Kildal , Jonas Rossavik Johannessen , Daniel Nygård Ege , Martin Francis Berg , Martin Steinert

{"title":"Prototyping Industry 4.0: The Case of an Automated Stapler for Acoustic Slat Panel Production","authors":"Sander Evenrud Kildal , Jonas Rossavik Johannessen , Daniel Nygård Ege , Martin Francis Berg , Martin Steinert","doi":"10.1016/j.procir.2024.06.015","DOIUrl":"10.1016/j.procir.2024.06.015","url":null,"abstract":"<div><div>This paper explores the practical adoption challenges of Industry 4.0 principles in Small Enterprises (SEs), particularly through the development of an automated stapler prototype for acoustic slat panel production. The study presents a case where the prototype, costing less than 400 euros, is shown to potentially increase the production rate by 42%, showcasing the feasibility of cost-effective, tailored solutions in digitizing manufacturing processes within SEs. It demonstrates that such incremental improvements can substantially boost productivity and efficiency, enabling SEs to better compete in increasingly demanding markets while also mitigating the high cost and physical strains associated with manual labor. The presented approach of prioritizing significant improvements over complete automation aligns well with the practical and financial constraints of SEs. Moreover, the paper challenges the notion that the adoption of Industry 4.0 necessitates substantial investment, by highlighting the importance of flexible, low-cost prototyping in overcoming financial and technical constraints, suggesting a shift towards accessible digital transformation in the manufacturing sector.</div></div>","PeriodicalId":20535,"journal":{"name":"Procedia CIRP","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142437685","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Price competition for service provision with different bargaining abilities 不同议价能力的服务价格竞争

Procedia CIRP Pub Date : 2024-01-01 DOI: 10.1016/j.procir.2024.08.253

Jianyong Teng , Ryuichiro Ishikawa

引用次数: 0

Influence of clearance and velocity during blanking on the fatigue behavior of cellulose-based biocomposites 冲裁过程中的间隙和速度对纤维素基生物复合材料疲劳行为的影响

Procedia CIRP Pub Date : 2024-01-01 DOI: 10.1016/j.procir.2024.08.010

Ronja Scholz , Sven Winter , Alexander Delp , Tobias Breitfeld , Verena Psyk , Welf-Guntram Drossel , Frank Walther

{"title":"Influence of clearance and velocity during blanking on the fatigue behavior of cellulose-based biocomposites","authors":"Ronja Scholz , Sven Winter , Alexander Delp , Tobias Breitfeld , Verena Psyk , Welf-Guntram Drossel , Frank Walther","doi":"10.1016/j.procir.2024.08.010","DOIUrl":"10.1016/j.procir.2024.08.010","url":null,"abstract":"<div><p>Cellulose-based biocomposites, such as Cottonid, are a promising class of materials to improve the carbon footprint of products during their service life. Cottonid has high technological potential due to its physical and mechanical similarities to engineering plastics and light metals. To replace traditional metallic materials in industry, cellulose-based semi-finished products need to be formed and cut. In particular, blanking is the most cost-effective and industrially common cutting method for metals. However, this study investigates the influence of various blanking process parameters on the quality and the fatigue strength of the resulting cutting edges of Cottonid. The presented results give insights on how the relationships between process parameters during cutting and resulting material properties known from conventional materials can be transferred to cellulose-based biocomposites like Cottonid. The relative clearance was varied between 4 and 10% and the cutting velocity between 0.05 and 10 m/s. It was evident that slower velocities and smaller clearances resulted in visibly better cutting edges. In order to relate this effect to the mechanical performance of Cottonid, new 3-point bend specimens were taken from the blanked strips for fatigue testing. It was found that the fatigue strength was significantly affected by the velocity and clearance. Further, similar to metallic materials, clean-cut (smooth area) and a fractured zone can be clearly distinguished. A good cutting edge quality results in a higher resistance of the Cottonid component against crack initiation at process-induced defects. The knowledge gained may enable an efficient cutting process for cellulose-based materials with higher fatigue strength in the future.</p></div>","PeriodicalId":20535,"journal":{"name":"Procedia CIRP","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2212827124003640/pdf?md5=c771b7eeed8e72a51cfc06114f893c7b&pid=1-s2.0-S2212827124003640-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142148415","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Bioinspired active hemocompatible coating systems for mechanical circulatory support devices: when engineering meets nano and molecular technology 用于机械循环支持装置的生物启发活性血液兼容涂层系统：当工程学遇上纳米和分子技术

Procedia CIRP Pub Date : 2024-01-01 DOI: 10.1016/j.procir.2024.08.011

Martin Kohse , Lena Witzdam , Felix Jakob , Alexander Boes , Holger Mescheder , Robin Day , Oliver Grottke , Ulrich Schwaneberg , Cesar Rodriguez-Emmenegger , Thomas Bergs

{"title":"Bioinspired active hemocompatible coating systems for mechanical circulatory support devices: when engineering meets nano and molecular technology","authors":"Martin Kohse , Lena Witzdam , Felix Jakob , Alexander Boes , Holger Mescheder , Robin Day , Oliver Grottke , Ulrich Schwaneberg , Cesar Rodriguez-Emmenegger , Thomas Bergs","doi":"10.1016/j.procir.2024.08.011","DOIUrl":"10.1016/j.procir.2024.08.011","url":null,"abstract":"<div><p>Industrial manufacturing is undergoing a biological transformation, which has become a growing part of current research in production engineering. The technologies involved help to translate innovative approaches into existing or novel medical devices. Currently, however, even the most advanced blood contacting medical devices fail to be sufficiently inert to blood, thus causing acute effects – coagulation, inflammation, embolism, stroke – as well as chronic ones – inflammation and chronic use of anticoagulants. We present the marriage of advanced molecular science, nanotechnology and advanced production engineering to improve the hemocompatibility of hemodynamic systems, such as artificial hearts. Our consortium has joined forces to develop nature-inspired coating systems that improve hemocompatibility, prohibit adhesion of bacteria and minimize the growth of dangerous large thrombi. We achieve this by (1) concealing the presence of the titanium surface, thereby minimizing the activation of inflammatory and coagulatory reactions, (2) locally inactivating those molecules that cause uncontrolled coagulation, (3) directing the blood to use its own fibrinolytic system to digest the clot and (4) introducing micro surface patterns that interfere with the flow near the surface generating shear, which in turn prohibits dangerous clots from growing. <em>In vitro</em> tests demonstrate considerable improvement in hemocompatibility.</p></div>","PeriodicalId":20535,"journal":{"name":"Procedia CIRP","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2212827124003652/pdf?md5=1f2eb5d70dda36f623a8c6bb6856e564&pid=1-s2.0-S2212827124003652-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142148416","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Mycelium-based-composites – Vision for substitution of fossil-based materials 基于菌丝体的复合材料--替代化石材料的愿景

Procedia CIRP Pub Date : 2024-01-01 DOI: 10.1016/j.procir.2024.08.014

Steffen Ihlenfeldt , Stefan Schillberg , Christoph Herrmann , Simon Vogel , Robar Arafat , Simon Harst

{"title":"Mycelium-based-composites – Vision for substitution of fossil-based materials","authors":"Steffen Ihlenfeldt , Stefan Schillberg , Christoph Herrmann , Simon Vogel , Robar Arafat , Simon Harst","doi":"10.1016/j.procir.2024.08.014","DOIUrl":"10.1016/j.procir.2024.08.014","url":null,"abstract":"<div><p>For decades, fossil-based materials have formed the basis of an almost endless range of technical products. Through variable chemical composition and several additives, especially plastics can have a wide range of properties, which form the basis for the diversity of plastic-based products. While this variability enables many sustainability strategies, such as lightweighting, it is also impeding a fully circular economy. Therefore, in recent years, a number of new raw materials have been developed, but they can only cover a very limited part of the wide range of properties of fossil-based plastics. Another promising class of materials are composites based on fungal mycelium.</p><p>However, these are mainly limited to the consumer sector, e.g. vegan leather, where there is smaller demand for durability, functionality etc. The step from consumer to engineering materials require the production (or growth) process to be reproducible within the necessary quality requirements. Cyber-physical production systems have the potential to realise necessary technical qualities despite e.g. quality fluctuations of the raw material and production processes that are susceptible to interference. For this reason, this paper analyses the state of the art in production of mycelium based composites, shows the existing gaps and draws a vision to close these gaps.</p></div>","PeriodicalId":20535,"journal":{"name":"Procedia CIRP","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2212827124003688/pdf?md5=e3ceda9c40f62115990cfa26b756ead1&pid=1-s2.0-S2212827124003688-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142148417","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0