Procedia CIRP最新文献_第9页

3D point cloud analysis for surface quality inspection: A steel parts use case 用于表面质量检测的 3D 点云分析：钢铁部件使用案例

Procedia CIRP Pub Date : 2024-01-01 DOI: 10.1016/j.procir.2024.01.074

Michalis Ntoulmperis , Paolo Catti , Silvia Discepolo , Wilhelm van de Kamp , Paolo Castellini , Nikolaos Nikolakis , Kosmas Alexopoulos

{"title":"3D point cloud analysis for surface quality inspection: A steel parts use case","authors":"Michalis Ntoulmperis , Paolo Catti , Silvia Discepolo , Wilhelm van de Kamp , Paolo Castellini , Nikolaos Nikolakis , Kosmas Alexopoulos","doi":"10.1016/j.procir.2024.01.074","DOIUrl":"https://doi.org/10.1016/j.procir.2024.01.074","url":null,"abstract":"<div><p>A manufacturing process includes inspecting the product to verify it meets its quality standards. Such steps, however, are time-consuming and, depending on the means, prone to errors. If not identified in time, defects occurring at an early step of a manufacturing process may result in significant waste, especially if the product is not easy to re-work. Today, however, the combination of AI with computer vision technologies can enable manufacturers to transform quality inspection by automating the detection of defects. This study discusses the use of products’ 3D shape for inline surface defect detection, facilitating the adoption of proactive control strategies facilitating the reduction of waste. The product's 3D shape, represented by a point cloud is acquired by two fixed laser triangulation sensors orthogonally arranged. The K-means method is adopted for the point cloud data analysis, while Voxel Grid filters are used for downsampling to reduce computational time. The proposed approach has been evaluated in a use case related to the production of steel parts, with the findings supporting that an in-line implementation can facilitate the detection of surface or geometry defects, which, in turn, may facilitate the reduction of waste, by avoiding further processing of the defective product.</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/S221282712400101X/pdf?md5=31f3f63b4367d3ee68cf12e705d9b102&pid=1-s2.0-S221282712400101X-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140843626","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

Efficient data acquisition for traceability and analytics 高效数据采集，用于溯源和分析

Procedia CIRP Pub Date : 2024-01-01 DOI: 10.1016/j.procir.2024.01.011

Heiner Reinhardt , Mahtab Mahdaviasl , Bastian Prell , Anton Mauersberger , Philipp Klimant , Jörg Reiff-Stephan , Steffen Ihlenfeldt

引用次数: 0

Influence of the material history on the properties of recycled glass fiber reinforced polypropylene - impact of screw speed during injection molding 材料历史对再生玻璃纤维增强聚丙烯性能的影响--注塑过程中螺杆速度的影响

Procedia CIRP Pub Date : 2024-01-01 DOI: 10.1016/j.procir.2024.02.006

Lisa Dahrmann , Robert Kupfer , Maik Gude

{"title":"Influence of the material history on the properties of recycled glass fiber reinforced polypropylene - impact of screw speed during injection molding","authors":"Lisa Dahrmann , Robert Kupfer , Maik Gude","doi":"10.1016/j.procir.2024.02.006","DOIUrl":"https://doi.org/10.1016/j.procir.2024.02.006","url":null,"abstract":"<div><p>The changing properties of thermoplastic injection molding compounds during mechanical recycling complicate their use in structural lightweight engineering applications. Above that, an impact of the often unknown processing history on the recycled materials can be assumed, since it influences the material structure and degradation. In the present work it is investigated, how the shear load in plastification affects the properties of recycled glass fiber reinforced polypropylene during multiple processing cycles. Based on a design of experiments five processing cycles with different screw speeds are performed resulting in 47 different processing variants (screw speed, processing cycle). The samples undergo mechanical (tensile, impact), rheological (Melt Volume Rate) and morphological (fiber length distribution) tests. It was determined that the influence of the processing cycle is crucial for material degradation and properties. Also the screw speed setting directly affects the processing behaviour since it influences the melt temperature and viscosity. However, for the chosen process parameters, no clear influence of the screw speed on the resulting mechanical, rheological and morphological properties is found. The study suggests that knowledge of the screw speed setting is not essential for circular economy scenarios, as long it does not exceed the common processing recommendations.</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/S2212827124000271/pdf?md5=315a25031a1083c932f9c5504649ccc6&pid=1-s2.0-S2212827124000271-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140844239","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

A Standardized Data Model for the Battery Passport: Paving the Way for Sustainable Battery Management 电池护照的标准化数据模型：为可持续电池管理铺平道路

Procedia CIRP Pub Date : 2024-01-01 DOI: 10.1016/j.procir.2024.01.014

Mattia Gianvincenzi , Marco Marconi , Enrico Maria Mosconi , Francesco Tola

引用次数: 0

Data from start to finish: A System Life Cycle Data Map 从开始到结束的数据：系统生命周期数据图

Procedia CIRP Pub Date : 2024-01-01 DOI: 10.1016/j.procir.2024.01.060

Denis Tissen , Ingrid Wiederkehr , Christian Koldewey , Roman Dumitrescu

{"title":"Data from start to finish: A System Life Cycle Data Map","authors":"Denis Tissen , Ingrid Wiederkehr , Christian Koldewey , Roman Dumitrescu","doi":"10.1016/j.procir.2024.01.060","DOIUrl":"https://doi.org/10.1016/j.procir.2024.01.060","url":null,"abstract":"<div><p>The megatrend sustainability is changing the way industrial companies view their products and services and how they interact with the environment. In combination with digitalization, the way their systems (products and services) evolve is undergoing a significant shift, offering huge potential for optimization in favor of sustainability. Large volumes of data from the systems-in-use, software tools, and databases reshape how the system life cycle unfolds. This results into complex interrelationships between the life cycle phases and the created and used artifacts (i.e. models or production reports). The challenge for industrial companies is to get a structured overview of data sources, and data flows along the system life cycle. To address these challenges, a system life cycle data map has been developed utilizing design science. The data map illustrates the system life cycle phases, the related data sources and associated artifacts, and their interrelationships, i.e., the data flows between different artifacts. Applying the data map for a given system enhances data clarity and opens new opportunities for improving the system life cycle, its design, and potential for data-driven applications.</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/S2212827124000854/pdf?md5=91accb6f1fd4f2c0a1e6fe286b32bb14&pid=1-s2.0-S2212827124000854-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140843356","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 life cycle assessment of photovoltaic systems: An evaluation of environmental impacts over time 光伏系统生命周期比较评估：长期环境影响评估

Procedia CIRP Pub Date : 2024-01-01 DOI: 10.1016/j.procir.2024.02.005

Heidi Hottenroth , Tobias Viere

{"title":"Comparative life cycle assessment of photovoltaic systems: An evaluation of environmental impacts over time","authors":"Heidi Hottenroth , Tobias Viere","doi":"10.1016/j.procir.2024.02.005","DOIUrl":"https://doi.org/10.1016/j.procir.2024.02.005","url":null,"abstract":"<div><p>The production of photovoltaic (PV) systems is subject to continuous technological development and geographical shifts in manufacturing, leading to changes in economic aspects and environmental impacts. This work focuses on evaluating changes in environmental impacts over time using life cycle assessment (LCA). Several existing LCA studies and life-cycle inventory datasets for multi-crystalline silicon (multi-Si), single-crystalline silicon (single-Si), cadmium telluride (CdTe), and copper indium gallium selenide (CIS) were compared, and the reasons for deviations were analyzed.</p><p>The comparison was carried out at the plant level for panel slanted roof systems, and the impact assessment results were compared to their counterparts from the ecoinvent v3.3 life cycle inventory cut-off database for individual datasets.</p><p>The study found that technological advances in PV manufacturing have reduced environmental impacts. The differences between cell types converged over time, with CdTe having the lowest environmental impact during production. However, this may be relativized when considering the lower life time of CdTe cells in a cradle-to-grave assessment. Single-Si has a higher environmental impact during manufacturing, but it is just about compensated for compared to multi-Si. If a dataset for PV must be selected without cell-type knowledge, multi-Si plants are recommended as a proxy. The analysis provides insights into the environmental impacts of different PV systems over time and highlights the importance of regular updates of life-cycle inventories and consistent modeling.</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/S2212827124000246/pdf?md5=97673d88420b5f63b74026e6b52aa5e3&pid=1-s2.0-S2212827124000246-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140844236","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

Gear Up for Change: Unveiling 3D Printing's Potential for Appliance Repair through Dynamic Testing of Gears 改变齿轮：通过齿轮动态测试揭示 3D 打印在家电维修方面的潜力

Procedia CIRP Pub Date : 2024-01-01 DOI: 10.1016/j.procir.2024.01.055

Alex Bunodiere , Brent Hendrickx , Melchior Mertens , Joost Duflou

{"title":"Gear Up for Change: Unveiling 3D Printing's Potential for Appliance Repair through Dynamic Testing of Gears","authors":"Alex Bunodiere , Brent Hendrickx , Melchior Mertens , Joost Duflou","doi":"10.1016/j.procir.2024.01.055","DOIUrl":"https://doi.org/10.1016/j.procir.2024.01.055","url":null,"abstract":"<div><p>This study delves into the static and dynamic load testing of 3D-printed gears, addressing the potential of utilizing FDM 3D printing for repairing household appliances. The failure of electronic household appliances attributed to plastic gear malfunction has prompted an alarming number of products to be prematurely discarded due to a lack of available spare parts. The research emphasizes the transformative potential of 3D printing to streamline gear repairs, enabling rapid local production of gear replacements, and reducing costs and downtimes associated with conventional spare parts. PLA and ABS, the two most widely used 3D printing materials, underwent exhaustive static tests to determine maximum load-bearing capacities and accelerated fatigue tests to assess long-term performance. Results underscore the potential of the 3D printing process itself, highlighted by flexibility and shortened production timelines. However, limitations arise from the inferior mechanical properties of PLA and ABS as compared to traditional plastic gear materials such as nylon. PLA demonstrates promise under controlled temperatures but only with lubrication or metal contact, while ABS reveals inadequate mechanical and fatigue characteristics at higher torques.</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/S2212827124000775/pdf?md5=f64aaf65dc01fdca75040130b292e861&pid=1-s2.0-S2212827124000775-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140843350","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

On the performance of cryogenic technology in milling of hardened H13 tool steel. 低温技术在铣削淬硬 H13 工具钢中的性能。

Procedia CIRP Pub Date : 2024-01-01 DOI: 10.1016/j.procir.2024.02.012

A. Damir , A. Sadek , H. Attia

引用次数: 0

Preliminary Results from Life Cycle Assessment of a Product-Service System for Tailpipe Particle Measuring 尾气粒子测量产品服务系统生命周期评估的初步结果

Procedia CIRP Pub Date : 2024-01-01 DOI: 10.1016/j.procir.2024.01.010

Kai Rüdele , Matthias Wolf , Benjamin Ivantsits , Christian Ramsauer

{"title":"Preliminary Results from Life Cycle Assessment of a Product-Service System for Tailpipe Particle Measuring","authors":"Kai Rüdele , Matthias Wolf , Benjamin Ivantsits , Christian Ramsauer","doi":"10.1016/j.procir.2024.01.010","DOIUrl":"https://doi.org/10.1016/j.procir.2024.01.010","url":null,"abstract":"<div><p>Road vehicle fuel combustion emits large quantities of air pollutants such as respirable suspended particles. They are deemed to have severe impacts on human health. Therefore, concentration measurements to identify vehicles with malfunctioning after-treatment systems are crucial. This study assesses the environmental impacts of the production and use phase of a device detecting and quantifying those particle emissions caused by automobiles, also considering associated services such as regular calibration. The focus is on the comparison of environmental impacts of this product-service system and its possible emission avoidance by ensuring stipulated limits. For this purpose, the environmental performance is assessed by means of an adjusted break-even point method. Our work shows that the identification and replacement of 21 improperly working exhaust filters already offset the environmental burden of one device in at least one impact category.</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/S2212827124000209/pdf?md5=8d02b17b6e92f027dac30acb04216e85&pid=1-s2.0-S2212827124000209-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140844194","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

Conceptualization of a digital product passport to enable circular and sustainable automotive value chains – the combustion engine use case 概念化数字产品护照，实现循环和可持续的汽车价值链--内燃机用例

Procedia CIRP Pub Date : 2024-01-01 DOI: 10.1016/j.procir.2024.01.025

Antonia Pohlmann , Martin Popowicz , Josef-Peter Schöggl , Johann Bachler , Jakob Keler , Rupert J. Baumgartner

{"title":"Conceptualization of a digital product passport to enable circular and sustainable automotive value chains – the combustion engine use case","authors":"Antonia Pohlmann , Martin Popowicz , Josef-Peter Schöggl , Johann Bachler , Jakob Keler , Rupert J. Baumgartner","doi":"10.1016/j.procir.2024.01.025","DOIUrl":"https://doi.org/10.1016/j.procir.2024.01.025","url":null,"abstract":"<div><p>Despite stricter emission controls and the planned reduction of newly sold Internal Combustion Engine (ICE) cars, adequate repairing and recycling of old ICE cars remains vital, reflected also by the recent EURO7 standard that explicitly refers to repairability. Digital Product Passports (DPPs) have gained attention as enablers of transparent and traceable value chains and improved product lifecycle management. While the focus has been put on creating DPPs for electric vehicle batteries, research on the potentials and requirements for DPPs for the ICE and its well-known components, like the exhaust gas turbocharger, does not exist. Thus, this study systematically investigates what information such DPP needs to contain to support value chain actors’ sustainability/circularity-related decision-making. A mixed-method approach is applied. The Supply Chain Oriented Process to Identify Stakeholders (SCOPIS) method, as well as two expert workshops (N = 8 and N = 6) and an expert survey (N = 8) served for identifying the stakeholders and their most relevant information requirements. The results consist of a refined and prioritized list of information requirements, a conceptual model of a DPP for the turbocharger, and the presentation of two use cases: refurbishment and recycling. This contribution serves as the foundation for handling ICEs sustainably and circularly.</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/S2212827124000416/pdf?md5=da1192b4ac78ee5359258cb68be5d4ac&pid=1-s2.0-S2212827124000416-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140844310","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