Pub Date : 2026-01-01DOI: 10.1016/j.procir.2026.01.088
Timo Platt , Simon Jaquet , Jonas Baumann , Christoph Jäckel , Felix Niggemeyer , Maximilian Steinhorst , Teja Roch , Dirk Biermann
In machining deformation-sensitive components, clamping force-related impairments can affect component quality. The reduction of clamping forces to prevent deformation often limits parameters, productivity, and may lead to workpiece detachment. This study addresses these challenges by enhancing friction forces through tailored surface modifications, incorporating specifically designed structures and diamond-like carbon (DLC) coatings on clamping elements. The modified surface topographies were analyzed, and a sensor-integrated clamping device was employed to assess the clamping potential. Retention forces were investigated by varying clamping forces and subjecting workpieces to impulse-like excitation. The results demonstrate the potential for increasing clamping performance, validated for difficult-to-clamp components.
{"title":"Analysis of Surface-Modified Clamping Elements for Improved Clamping of Deformation-Sensitive Workpieces with a Sensor-Integrated Fixture","authors":"Timo Platt , Simon Jaquet , Jonas Baumann , Christoph Jäckel , Felix Niggemeyer , Maximilian Steinhorst , Teja Roch , Dirk Biermann","doi":"10.1016/j.procir.2026.01.088","DOIUrl":"10.1016/j.procir.2026.01.088","url":null,"abstract":"<div><div>In machining deformation-sensitive components, clamping force-related impairments can affect component quality. The reduction of clamping forces to prevent deformation often limits parameters, productivity, and may lead to workpiece detachment. This study addresses these challenges by enhancing friction forces through tailored surface modifications, incorporating specifically designed structures and diamond-like carbon (DLC) coatings on clamping elements. The modified surface topographies were analyzed, and a sensor-integrated clamping device was employed to assess the clamping potential. Retention forces were investigated by varying clamping forces and subjecting workpieces to impulse-like excitation. The results demonstrate the potential for increasing clamping performance, validated for difficult-to-clamp components.</div></div>","PeriodicalId":20535,"journal":{"name":"Procedia CIRP","volume":"138 ","pages":"Pages 510-515"},"PeriodicalIF":0.0,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146162151","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}
Pub Date : 2026-01-01DOI: 10.1016/j.procir.2026.01.068
Berend Denkena , Benjamin Bergmann , Malte Kraeft
The wear behaviour of cutting tools depends significantly on the mechanical load on the cutting wedge. The rake angle influences the chip formation and thus the mechanical loads. The influence on the shear angle, the contact length and the process forces was investigated. An experimentally based method was used to investigate the influence of the rake angle on the normal and tangential stresses on the cutting wedge when machining AISI4140.
{"title":"Modeling of mechanical loads on the cutting wedge with varying rake angle","authors":"Berend Denkena , Benjamin Bergmann , Malte Kraeft","doi":"10.1016/j.procir.2026.01.068","DOIUrl":"10.1016/j.procir.2026.01.068","url":null,"abstract":"<div><div>The wear behaviour of cutting tools depends significantly on the mechanical load on the cutting wedge. The rake angle influences the chip formation and thus the mechanical loads. The influence on the shear angle, the contact length and the process forces was investigated. An experimentally based method was used to investigate the influence of the rake angle on the normal and tangential stresses on the cutting wedge when machining AISI4140.</div></div>","PeriodicalId":20535,"journal":{"name":"Procedia CIRP","volume":"138 ","pages":"Pages 393-397"},"PeriodicalIF":0.0,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146161781","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}
In the area targeted by this study, the number of visits and migratory behavior of visitors to the city are low, and local revitalization is required. In this study, a coupon competition game using a combinatorial auction is proposed with the aim of increasing the distance traveled by visitors. By conducting computer experiments that simulate actual bidding behavior by taking into account the utility of visitors in the bidding of the combinatorial auction, it is confirmed that the extent to which the winning bids can be used to improve migratory.
{"title":"A Study on Methods of Improving Visitor Migration in Urban Areas Using Combinatorial Auction","authors":"Asahi Michishita , Nobutada Fujii , Shunsuke Watanabe , Ruriko Watanabe , Shinichi Tanaka","doi":"10.1016/j.procir.2026.01.006","DOIUrl":"10.1016/j.procir.2026.01.006","url":null,"abstract":"<div><div>In the area targeted by this study, the number of visits and migratory behavior of visitors to the city are low, and local revitalization is required. In this study, a coupon competition game using a combinatorial auction is proposed with the aim of increasing the distance traveled by visitors. By conducting computer experiments that simulate actual bidding behavior by taking into account the utility of visitors in the bidding of the combinatorial auction, it is confirmed that the extent to which the winning bids can be used to improve migratory.</div></div>","PeriodicalId":20535,"journal":{"name":"Procedia CIRP","volume":"138 ","pages":"Pages 25-29"},"PeriodicalIF":0.0,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146161902","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}
Pub Date : 2026-01-01DOI: 10.1016/j.procir.2026.01.014
Liz Annika Leutner , Lars Leyendecker , Maximilian Motz , Tobias Claus Brandstätter , Henrik Heymann , Robert H. Schmitt
Artificial intelligence (AI) offers great potential to increase productivity in production engineering. Nevertheless, manufacturing companies fail to successfully establish industrial AI applications on the shopfloor. Reasons are the great complexity and intransparency of AI as well as high performance and reliability requirements of production systems. To overcome these challenges and to comply with increasing regulatory requirements (e.g., the EU AI Act), we propose a framework for guiding the development of trustworthy industrial AI applications. Based on the core requirements of the production engineering domain, we propose a risk-based approach and define four qualification dimensions: safety, robustness, transparency and adaptivity.
{"title":"Framework for Developing Trustworthy Industrial AI Applications","authors":"Liz Annika Leutner , Lars Leyendecker , Maximilian Motz , Tobias Claus Brandstätter , Henrik Heymann , Robert H. Schmitt","doi":"10.1016/j.procir.2026.01.014","DOIUrl":"10.1016/j.procir.2026.01.014","url":null,"abstract":"<div><div>Artificial intelligence (AI) offers great potential to increase productivity in production engineering. Nevertheless, manufacturing companies fail to successfully establish industrial AI applications on the shopfloor. Reasons are the great complexity and intransparency of AI as well as high performance and reliability requirements of production systems. To overcome these challenges and to comply with increasing regulatory requirements (e.g., the EU AI Act), we propose a framework for guiding the development of trustworthy industrial AI applications. Based on the core requirements of the production engineering domain, we propose a risk-based approach and define four qualification dimensions: safety, robustness, transparency and adaptivity.</div></div>","PeriodicalId":20535,"journal":{"name":"Procedia CIRP","volume":"138 ","pages":"Pages 72-77"},"PeriodicalIF":0.0,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146161910","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}
Pub Date : 2026-01-01DOI: 10.1016/j.procir.2026.01.032
Max Eichenwald , Rainer Müller
Efficient offer management in mechanical engineering is based on the internal availability of a central knowledge base. New customer inquiries can be analyzed and compared with historical projects. These serve as a reference with regard to technical solution concepts and calculations. Knowledge about completed projects often lies implicitly in the heads of long-term employees and is difficult to access. Building on the recent successes of language modeling using neural networks, we present a method for processing documentation of historical projects and identifying essential metadata using Name Entity Recognition (NER) for storage in a database.
{"title":"Text-based analysis of production system documentation for cataloging historical projects using natural language processing","authors":"Max Eichenwald , Rainer Müller","doi":"10.1016/j.procir.2026.01.032","DOIUrl":"10.1016/j.procir.2026.01.032","url":null,"abstract":"<div><div>Efficient offer management in mechanical engineering is based on the internal availability of a central knowledge base. New customer inquiries can be analyzed and compared with historical projects. These serve as a reference with regard to technical solution concepts and calculations. Knowledge about completed projects often lies implicitly in the heads of long-term employees and is difficult to access. Building on the recent successes of language modeling using neural networks, we present a method for processing documentation of historical projects and identifying essential metadata using Name Entity Recognition (NER) for storage in a database.</div></div>","PeriodicalId":20535,"journal":{"name":"Procedia CIRP","volume":"138 ","pages":"Pages 180-185"},"PeriodicalIF":0.0,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146161931","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}
Pub Date : 2026-01-01DOI: 10.1016/j.procir.2026.01.033
Amaia Arregi Egibar , Iñigo Llanos
The use of process fingerprints in manufacturing is popular as it provides insight about the processes, and it enables the development of smart applications. Building a fingerprint requires signal segmenting, which can be a cumbersome task as not all the information required is always available. The present paper evaluates different algorithms for pattern recognition in univariate time series using unsupervised learning techniques for event identification. This comparison is performed through extrinsic and intrinsic evaluation metrics obtained from simulated data, representing industrial data. The results indicate that the matrix-profiles based algorithm can perform better than those based on changepoint detection.
{"title":"Automatic signal segmentation using unsupervised learning techniques for process fingerprint identification in smart manufacturing systems","authors":"Amaia Arregi Egibar , Iñigo Llanos","doi":"10.1016/j.procir.2026.01.033","DOIUrl":"10.1016/j.procir.2026.01.033","url":null,"abstract":"<div><div>The use of process fingerprints in manufacturing is popular as it provides insight about the processes, and it enables the development of smart applications. Building a fingerprint requires signal segmenting, which can be a cumbersome task as not all the information required is always available. The present paper evaluates different algorithms for pattern recognition in univariate time series using unsupervised learning techniques for event identification. This comparison is performed through extrinsic and intrinsic evaluation metrics obtained from simulated data, representing industrial data. The results indicate that the matrix-profiles based algorithm can perform better than those based on changepoint detection.</div></div>","PeriodicalId":20535,"journal":{"name":"Procedia CIRP","volume":"138 ","pages":"Pages 186-191"},"PeriodicalIF":0.0,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146161932","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}
Pub Date : 2026-01-01DOI: 10.1016/j.procir.2026.01.034
Laurent Paquot , Emmanuelle Abisset-Chavanne , Pierre-André Rey , Mathias Durant
This article proposes a methodology for fault diagnosis on a whole machine-tool in low data limit environments. The approach involves data selection with dependability analysis and Fault Detection and Isolation (FDI) tools additionally to physic laws for using AI only where it is necessary. Physics laws are based on Bond Graphs for modelling healthy behavior, simulating faults, determining dynamic thresholds and applying Hamming Distance. AI will support the diagnosis by isolating the remaining non-isolable anomalies from faulty signals. This study focuses on a linear axis to validate the methodology.
{"title":"Bond Graph and AI as a hybrid model for fault diagnosis at the scale of a complete machine-tool","authors":"Laurent Paquot , Emmanuelle Abisset-Chavanne , Pierre-André Rey , Mathias Durant","doi":"10.1016/j.procir.2026.01.034","DOIUrl":"10.1016/j.procir.2026.01.034","url":null,"abstract":"<div><div>This article proposes a methodology for fault diagnosis on a whole machine-tool in low data limit environments. The approach involves data selection with dependability analysis and Fault Detection and Isolation (FDI) tools additionally to physic laws for using AI only where it is necessary. Physics laws are based on Bond Graphs for modelling healthy behavior, simulating faults, determining dynamic thresholds and applying Hamming Distance. AI will support the diagnosis by isolating the remaining non-isolable anomalies from faulty signals. This study focuses on a linear axis to validate the methodology.</div></div>","PeriodicalId":20535,"journal":{"name":"Procedia CIRP","volume":"138 ","pages":"Pages 192-197"},"PeriodicalIF":0.0,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146161992","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}
Pub Date : 2026-01-01DOI: 10.1016/j.procir.2026.01.042
Xiaomei Xu , Attique Bashir , Rainer Müller
This paper outlines a systematic approach to improve the precision of 3D reconstructions from blurry point cloud images taken by a 3D camera. The process involves thorough 3D scanning, point cloud image alignment and precise 3D robotic pose estimation. Global registration utilizes TEASER++, and local registration employs the Iterative Closest Point algorithm for rotation and translation estimation. The alignment results are utilized to generate an enhanced CAD model. An accurate 3D robotic pose is determined from the CAD model data. Validation is done using LEGO components, benchmarked against an industrial tool for performance evaluation.
{"title":"An approach for precise CAD reconstruction based on TEASER++, iterative ICP methods for robotics applications","authors":"Xiaomei Xu , Attique Bashir , Rainer Müller","doi":"10.1016/j.procir.2026.01.042","DOIUrl":"10.1016/j.procir.2026.01.042","url":null,"abstract":"<div><div>This paper outlines a systematic approach to improve the precision of 3D reconstructions from blurry point cloud images taken by a 3D camera. The process involves thorough 3D scanning, point cloud image alignment and precise 3D robotic pose estimation. Global registration utilizes TEASER++, and local registration employs the Iterative Closest Point algorithm for rotation and translation estimation. The alignment results are utilized to generate an enhanced CAD model. An accurate 3D robotic pose is determined from the CAD model data. Validation is done using LEGO components, benchmarked against an industrial tool for performance evaluation.</div></div>","PeriodicalId":20535,"journal":{"name":"Procedia CIRP","volume":"138 ","pages":"Pages 240-245"},"PeriodicalIF":0.0,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146162003","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}
Pub Date : 2026-01-01DOI: 10.1016/j.procir.2026.01.057
Max Eichenwald , Jan Molter , Rainer Müller
The digital representation of a physical asset is a key factor regarding the digital twin. The idea of Asset Administration Shells (AAS) aiming at consistent asset description and data exchange across different manufacturers is gaining ground. Yet, in its early stages, widespread implementation is lacking in the industrial landscape. Consequently, small and medium-sized enterprises (SMEs) face challenges in creating or accessing AAS. We provide an overview of the principles and capabilities of AAS and discuss a practical implementation that automatically generates AAS from a centralized resource description of assets within an ERP system.
{"title":"Digital twin: Automatic generation of Asset Administration Shells (AAS)","authors":"Max Eichenwald , Jan Molter , Rainer Müller","doi":"10.1016/j.procir.2026.01.057","DOIUrl":"10.1016/j.procir.2026.01.057","url":null,"abstract":"<div><div>The digital representation of a physical asset is a key factor regarding the digital twin. The idea of Asset Administration Shells (AAS) aiming at consistent asset description and data exchange across different manufacturers is gaining ground. Yet, in its early stages, widespread implementation is lacking in the industrial landscape. Consequently, small and medium-sized enterprises (SMEs) face challenges in creating or accessing AAS. We provide an overview of the principles and capabilities of AAS and discuss a practical implementation that automatically generates AAS from a centralized resource description of assets within an ERP system.</div></div>","PeriodicalId":20535,"journal":{"name":"Procedia CIRP","volume":"138 ","pages":"Pages 328-333"},"PeriodicalIF":0.0,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146162066","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}
Pub Date : 2026-01-01DOI: 10.1016/j.procir.2026.01.039
Claudiu Bisu , Miron Zapciu
The importance of the spindle is well known but the complexity of vibration, transmissibility, the multitude of vibration sources and their coupling, make the diagnostic process limited or even produce large errors. In the practical engineering, the fault detection of the spindle, even more of the spindle motor is mainly carried out by workshop technical experts based on vibration analysis. In the case of in-situ monitoring and diagnosis of spindle is more difficult than the experimental laboratory setup. The signals from in-situ conditions contain more noise and vibration interferences, the measurement environment is complex and taking into account local several factors is inevitable. This paper presents a method of fault diagnostics in condition of in-situ using a measurement protocol based on stationary accelerometers, speed sensor and an acquisition data. The aim of the paper is centred on the fault diagnosis model applied to spindles that can integrate the types of faults both at low frequencies and at high frequencies; defect type, source of vibration and propose different types of solutions.
{"title":"In-situ Spindle Diagnostic with Automated Fault Defects Integration","authors":"Claudiu Bisu , Miron Zapciu","doi":"10.1016/j.procir.2026.01.039","DOIUrl":"10.1016/j.procir.2026.01.039","url":null,"abstract":"<div><div>The importance of the spindle is well known but the complexity of vibration, transmissibility, the multitude of vibration sources and their coupling, make the diagnostic process limited or even produce large errors. In the practical engineering, the fault detection of the spindle, even more of the spindle motor is mainly carried out by workshop technical experts based on vibration analysis. In the case of in-situ monitoring and diagnosis of spindle is more difficult than the experimental laboratory setup. The signals from in-situ conditions contain more noise and vibration interferences, the measurement environment is complex and taking into account local several factors is inevitable. This paper presents a method of fault diagnostics in condition of in-situ using a measurement protocol based on stationary accelerometers, speed sensor and an acquisition data. The aim of the paper is centred on the fault diagnosis model applied to spindles that can integrate the types of faults both at low frequencies and at high frequencies; defect type, source of vibration and propose different types of solutions.</div></div>","PeriodicalId":20535,"journal":{"name":"Procedia CIRP","volume":"138 ","pages":"Pages 222-227"},"PeriodicalIF":0.0,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146162067","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}
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