Procedia CIRP最新文献

{"title":"Comparing Surface Characteristics of Additively Manufactured and Cold Rolled NiTi Workpieces, Post - Processed Using Wire Electric Discharge Machining","authors":"Christopher O’Hara ,&nbsp;Merve Nur Doğu ,&nbsp;Meris Ikiz ,&nbsp;Usman Aziz ,&nbsp;Dermot Brabazon ,&nbsp;David Tormey","doi":"10.1016/j.procir.2025.02.282","DOIUrl":"10.1016/j.procir.2025.02.282","url":null,"abstract":"<div><div>This work investigated the resulting surface properties of additively manufactured (AM) NiTi samples compared to cold-rolled (CR) NiTi samples post-processed under a range of wire electric discharge machining (WEDM) settings. The research aimed to optimize surface topography and composition to enhance the surface properties and fatigue life of AM NiTi shape memory alloy components, focusing on minimizing the WEDM processing required for net-shape flat surfaces produced via AM. The intent is to reduce the overall material use and processing time for shape memory alloy AM components. In this study, the mean surface roughness (Ra) of the as-printed NiTi samples saw a 24% to 61% reduction, with the best Ra achieved being 4.23µm, down from 10.71µm. The WEDM processed AM sample surfaces had a 31% to 177% higher Ra than the CR equivalent samples. The material removal rate (MRR) aligned to within (at best) a 4% difference in the MRR between the AM sample and CR equivalent. Changes in the samples Vickers hardness (HV) presented a decrease of 1% to 29% on the CR samples and 3% to 38% on the AM samples, with the maximum decrease being 91.5HV and 136HV, respectively. These results highlight notable differences in machinability between CR and AM NiTi samples, emphasizing the need for further research to optimize WEDM processes for net-shape AM NiTi components.</div></div>","PeriodicalId":20535,"journal":{"name":"Procedia CIRP","volume":"137 ","pages":"Pages 329-334"},"PeriodicalIF":0.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144911490","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Reverse Engineering Process Modeling for Cutting Insert Preparation in Laser Micro-Machining","authors":"Ján Milde ,&nbsp;Maroš Dubnička ,&nbsp;Marcel Kuruc ,&nbsp;Marek Vozár ,&nbsp;Augustín Görög","doi":"10.1016/j.procir.2025.02.261","DOIUrl":"10.1016/j.procir.2025.02.261","url":null,"abstract":"&lt;div&gt;&lt;div&gt;In simulations and certain manufacturing processes (such as additive manufacturing, laser ablation), STL models in the form of raw data from the digitization process can be used as direct input. However, to produce a model with the highest possible accuracy and quality, reverse engineering is often necessary to eliminate errors or defects, ensuring a geometrically precise and optimal model, in the case, when initial CAD data are missing. Based on practical experience, where the cutting insert was scanned using the smallest measuring volumes MV 38 and MV 100, we can conclude that the measurement method using optical 3D scanning is suitable for measuring the cutting insert as well as its wear. During the reverse engineering process, it is frequently required to adjust the models, such as aligning the coordinate system or modifying (reducing) the triangular mesh to decrease the size of STL models, if necessary. The reverse engineering process itself offers a wide range of methods that can be applied (e.g., surface fitting methods such as external, middle, or internal fitting), which can significantly impact the accuracy of the final CAD model, required as input for simulations or the manufacturing processes themselves. This research paper focuses on analyzing the accuracy of a CAD model of a cutting insert with chip-braker based on various techniques used in the Reverse Geometric Modeling process. The exact type or name of the cutting insert will not be disclosed for commercial and business reasons and will be referred to throughout the article simply as the cutting insert. The experiment also examines the impact of triangular mesh reduction on the final accuracy of the CAD model within the reverse geometric modeling process. For this experiment, a turning cutting insert with a chip-breaker was selected, and its physical model was digitized using the optical 3D scanner GOM ATOS II Triple Scan with a measurement volume of MV 100. The results of this experiment highlight the effects of individual reverse geometric modeling methods (surface wrapping using external, middle, and internal fittings) as well as the influence of triangular mesh reduction on the final accuracy of the CAD model, specifically in the case of the cutting insert. The aim of this experiment is to determine how specific process parameters of reverse geometric modeling affect the accuracy of the cutting insert, particularly how precise parameters of the cutting insert (e.g., IC, L, RE, ESPR, AN, and others) change with variations in reverse geometric modeling parameters and triangular mesh reduction. These findings are highly relevant not only for simulations of the machining process in advanced CAE software but also for the manufacturing of models using advanced production technologies such as additive manufacturing or laser micro-machining. The results of this experiment highlight the suitability of using non-contact data acquisition methods, specifically optical 3D scann","PeriodicalId":20535,"journal":{"name":"Procedia CIRP","volume":"137 ","pages":"Pages 25-33"},"PeriodicalIF":0.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144911713","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Concept for Product Architecture Evolution Planning in the Context of Circular Economy","authors":"Michael Riesener ,&nbsp;Alexander Keuper ,&nbsp;Timm Schulz-Isenbeck ,&nbsp;Günther Schuh","doi":"10.1016/j.procir.2025.08.009","DOIUrl":"10.1016/j.procir.2025.08.009","url":null,"abstract":"<div><div>The linear economic model of the manufacturing industry requires a fundamental shift towards a circular economy. The extension of product lifespans through value-adding upgrades serves to conserve resources and promote sustainability. However, the product architecture may constrain the potential for value enhancements through product upgrades. This necessitates the evaluation of whether novel features can still be integrated into the existing product architecture rather than a new product generation. A conceptual framework is employed to facilitate decisionmaking in the evolution planning of circular product architectures, which weighs the upgrade’s development and reassembly effort against its added-value and the architecture’s future viability.</div></div>","PeriodicalId":20535,"journal":{"name":"Procedia CIRP","volume":"136 ","pages":"Pages 38-43"},"PeriodicalIF":0.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144912018","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Robotic Process Automation and Employee Outcomes: A Quantitative Study of Role Changes, Work-Life Balance, and Job Opportunity","authors":"Pittawat Ueasangkomsate ,&nbsp;Thanawan Boonsripornchai","doi":"10.1016/j.procir.2025.08.003","DOIUrl":"10.1016/j.procir.2025.08.003","url":null,"abstract":"<div><div>This study investigates employees’ perceptions of the impact of Robotic Process Automation (RPA) on their roles, work-life balance, and job opportunities in a Thai state enterprise. The study employed a quantitative approach, collecting data from 171 employees who experienced RPA implementation using a structured questionnaire. The data were analyzed using descriptive statistics and the Paired Samples t-test. The findings revealed significant differences in employees’ perceptions of role changes and work-life balance before and after RPA implementation. Employees reported increased assignment of challenging and skill-intensive tasks, as well as improved work-life balance, particularly in terms of reduced overtime work and better physical and mental health. However, no significant difference was found in employees’ perceptions of threatening job opportunities. The study contributes to the literature by providing insights into the impact of RPA on employees in a developing country context and offers practical recommendations for organizations to manage the workforce implications of automation. Future research should investigate the long-term effects of RPA on employee outcomes and explore the generalizability of the findings to other industries and cultural contexts.</div></div>","PeriodicalId":20535,"journal":{"name":"Procedia CIRP","volume":"136 ","pages":"Pages 3-8"},"PeriodicalIF":0.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144912113","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Application of artificial intelligence in model-based systems engineering of automated production systems","authors":"Timo Schuchter ,&nbsp;Patrick Saft ,&nbsp;Ralf Stetter ,&nbsp;Markus Pfeil ,&nbsp;Wolfram Höpken ,&nbsp;Markus Till ,&nbsp;Stephan Rudolph","doi":"10.1016/j.procir.2025.08.013","DOIUrl":"10.1016/j.procir.2025.08.013","url":null,"abstract":"<div><div>Despite the incontestable appeal, the application of artificial intelligence (AI) in engineering processes is still limited to isolated applications and, in some fields, enthusiasm has given way to disillusionment. This paper aims to contribute to a concept of a framework that allows the application of AI in model-based systems engineering (MBSE) processes of automated production systems; the main focus is hereby on the MBSE processes. The aim of the complete framework is to realize an AI-based, self-learning digital twin that automatically adapts to the real system behavior and represents an optimal image of a product and its production process at all times. An expressive, semantic overall model serves as the basis for new approaches to artificial intelligence. In the complete framework, knowledge gained using AI methods is integrated into the overall model and thus brought into an overall context. Such an overall model improves the interpretability and explainability of the AI models and enables complex analyses, simulations and forecasts. The core element of the approach is a novel, AI-based, self-learning engineering model consisting of a product and production model that maps function, behavior and product geometry. Graph-based design languages are used for forming a central data model and functional mock-up units are applied for continuous co-simulation. The approach is underlined by means of an application to the design of automated assembly systems.</div></div>","PeriodicalId":20535,"journal":{"name":"Procedia CIRP","volume":"136 ","pages":"Pages 61-66"},"PeriodicalIF":0.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144912123","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"De-Production model combining R-Strategies and D-Strategies in product and production systems life cycles: Application to Remanufacturing","authors":"A.J. Baptista ,&nbsp;R.F. Santos ,&nbsp;A.L. Soares ,&nbsp;S. Evans","doi":"10.1016/j.procir.2025.08.093","DOIUrl":"10.1016/j.procir.2025.08.093","url":null,"abstract":"<div><div>The world faces unprecedented challenges related to the so-called Triple Planetary Crisis (climate changes, massive pollution, biodiversity losses). The Linear Economy model of development represents a very relevant cause for these crises effects, since it is anchored on the paradox of ever-growing natural resources extraction within a finite planet space and limited policy barriers for ecosystems degradation. Circular Economy emerges as a promising alternative development model, but it still urges for effective implementation. This work presents a novel De-Production model that combines, by design or redesign, the articulation of R-Strategies and D-Strategies across the product and production life cycles in order to unblock circular business models. It is proposed a systemic approach considering product circularity by means of activating R-Strategies, improving both production operations and de-production operations via value retention mindset. The model is tested via discrete simulation in a remanufacturing case study of a bicycle wheel assembly.</div></div>","PeriodicalId":20535,"journal":{"name":"Procedia CIRP","volume":"136 ","pages":"Pages 540-545"},"PeriodicalIF":0.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144912396","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Fostering Model Reuse in Model-based Systems Engineering using Knowledge Graphs","authors":"Roman Stephan ,&nbsp;Thomas Schumacher ,&nbsp;David Inkermann","doi":"10.1016/j.procir.2025.08.051","DOIUrl":"10.1016/j.procir.2025.08.051","url":null,"abstract":"<div><div>The increasing spread of MBSE is associated with the issue of reusing the knowledge contained in different system models in different development projects. Existing approaches for the reuse of system models or elements of these can be classified into framework-based, retrieval-based, and pattern-based. While framework- and pattern-based approaches require standardized modelling methods, retrieval-based approaches are based on merging of different system models. This is not supported by current MBSE-tools. In this contribution we investigate how knowledge graphs can be generated from various SysML system models and whether and how new knowledge, e.g., about cause-effect relationships or structural patterns, can be determined.</div></div>","PeriodicalId":20535,"journal":{"name":"Procedia CIRP","volume":"136 ","pages":"Pages 290-295"},"PeriodicalIF":0.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144912438","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Advancing the Collaboration in Manufacturing Networks A Systematic Literature Review on Implementations of Asset Administration Shells and Data Spaces","authors":"Fabian Zink ,&nbsp;Lorenz Fink ,&nbsp;Bernhard Wallner ,&nbsp;Friedrich Bleicher ,&nbsp;Thomas Trautner","doi":"10.1016/j.procir.2025.08.094","DOIUrl":"10.1016/j.procir.2025.08.094","url":null,"abstract":"<div><div>Collaboration in manufacturing networks is crucial to maximize the impact of digitalization and leveraging collected data. Addressing three key challenges overcoming data silos, achieving semantic interoperability and protecting intellectual property is essential. A promising solution is the combination of Asset Administration Shells and data space technologies. This systematic literature review investigates implementations of these two concepts in manufacturing, evaluating use cases based on their technological readiness levels and the technologies employed. The findings aim to guide researchers and practitioners and identify future research directions.</div></div>","PeriodicalId":20535,"journal":{"name":"Procedia CIRP","volume":"136 ","pages":"Pages 546-551"},"PeriodicalIF":0.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144912397","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Immersive Onboarding: Designing a Training Framework for Effective Virtual Reality Integration in Product Development","authors":"Ali Abughalia,&nbsp;Carsten Stechert","doi":"10.1016/j.procir.2025.08.075","DOIUrl":"10.1016/j.procir.2025.08.075","url":null,"abstract":"<div><div>Virtual Reality (VR) is increasingly recognized as a valuable tool in product development. To effectively integrate VR into the product development process, companies need skilled personnel, modifications to existing workflows, and robust digital infrastructure. These elements are crucial for preparing the enterprise for VR technology and enhancing its acceptance among team members. This paper provides guidelines for designing a structured and continuously updated training framework, informed by retrospective and incremental measurements, to develop employee skills and ensure the company is well-positioned to leverage VR effectively.</div></div>","PeriodicalId":20535,"journal":{"name":"Procedia CIRP","volume":"136 ","pages":"Pages 432-437"},"PeriodicalIF":0.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144912479","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Requirements for Modeling Frameworks in the Context of Assembly Work Instruction Development","authors":"Rieke Leder ,&nbsp;Daniel Rippel ,&nbsp;Nils Hoppe ,&nbsp;Michael Freitag","doi":"10.1016/j.procir.2025.08.082","DOIUrl":"10.1016/j.procir.2025.08.082","url":null,"abstract":"<div><div>This paper introduces requirements for a flexible modeling framework for creating digital work instructions (DWI) for industrial assembly processes. Designed to standardize DWI development, the framework organizes materials, tools, and hints into structured workflows, integrating diverse input data. Developed through a three-phase methodology data identification, framework creation, and validation its design is informed by a requirement analysis. A LEGO® use case demonstrates its application, highlighting its potential to improve efficiency, reduce errors, and support the integration of advanced technologies in manufacturing.</div></div>","PeriodicalId":20535,"journal":{"name":"Procedia CIRP","volume":"136 ","pages":"Pages 474-479"},"PeriodicalIF":0.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144912486","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}