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Efficient parameter estimation for grinding force models using a Bayesian approach 基于贝叶斯方法的磨削力模型有效参数估计
Pub Date : 2026-01-01 DOI: 10.1016/j.procir.2026.01.090
Lena Geißel , Adina Grimmert , Petra Wiederkehr
To prevent mechanical damage caused by process forces when grinding turbine blades for aerospace applications, the prediction of process forces is of major interest. Macroscopic grinding simulations utilizing suitable force models are a common method to predict process forces. However, the prediction accuracy of the simulation highly depends on determined model parameter values. In order to enable an efficient and precise model parameter estimation, this study presents a Bayesian Markov Chain Monte Carlo (MCMC) method based on hybrid data sources. By only using few measurements combined with simulated data, force model parameters are conditioned leading to accurate simulation results.
为了防止在磨削航空航天涡轮叶片时过程力造成的机械损伤,过程力的预测是一个重要的研究方向。利用合适的力模型进行宏观磨削仿真是预测加工力的常用方法。然而,仿真的预测精度在很大程度上取决于模型参数值的确定。为了实现高效、精确的模型参数估计,提出了一种基于混合数据源的贝叶斯马尔可夫链蒙特卡罗(MCMC)方法。只需要少量的测量数据与仿真数据相结合,就可以调节力模型参数,从而获得准确的仿真结果。
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引用次数: 0
Investigation of Chip Evacuation in Ejector Deep Hole Drilling using Mesh-Free Simulation Methods 基于无网格仿真的喷射器深孔钻削排屑研究
Pub Date : 2026-01-01 DOI: 10.1016/j.procir.2026.01.069
Nuwan Rupasinghe , Julian Frederic Gerken , Andreas Baumann , Peter Eberhard , Dirk Biermann
Ejector deep hole drilling is advantageous due to its high material removal rate and bore quality without requiring a complex sealing system for drilling applications with large length to diameter ratios. Sufficient supply of metal working fluid and efficient removal of the swarf is crucial, which would otherwise lead to poor bore quality, increased friction, and tool wear. Based on experimentally obtained chip shapes, a coupled SPH-DEM simulation model was used to enhance the understanding of the highly complicated and dynamic chip evacuation conditions. A comparison of different tool head designs and their influence on the chip evacuation is presented.
喷射器深孔钻井的优势在于其高材料去除率和井眼质量,而不需要复杂的密封系统,适用于长径比大的钻井应用。充足的金属加工液供应和有效去除屑是至关重要的,否则会导致镗孔质量差、摩擦增加和工具磨损。基于实验获得的切屑形状,采用SPH-DEM耦合仿真模型,增强对高度复杂动态的切屑疏散条件的理解。比较了不同刀头的设计及其对排屑的影响。
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引用次数: 0
Manufacturing of self-support thin structures with extrusion and sinter-based technology 用挤压和烧结技术制造自支撑薄结构
Pub Date : 2026-01-01 DOI: 10.1016/j.procir.2026.01.097
Alessandro Pellegrini , Marco Zaza , Maria Grazia Guerra , Fulvio Lavecchia , Luigi Maria Galantucci
In the present work a composite 316L filament was used to realize through Material extrusion debinding and sintering the simple cubic (SC) and the body-center-cubic (BCC) cells characterized by critical features as bridges and overhang angle. Two beam size were considered for each cell. The printing quality and dimensional accuracy of the cells was assessed with a visual inspection and through 3D scanning. The adoption of the cooling always improved the quality of the printed parts and influenced the dimensional accuracy of a smaller size of the beams for the BCC, instead a bigger size for the SC.
本文采用复合材料316L长丝,通过材料挤压脱粘和烧结,实现了具有桥梁和悬垂角等关键特征的简单立方(SC)和体-心-立方(BCC)胞体。每个单元考虑两种光束尺寸。通过目视检查和三维扫描来评估细胞的打印质量和尺寸精度。冷却的采用总是提高了打印部件的质量,并影响了小尺寸的BCC梁的尺寸精度,而不是大尺寸的SC。
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引用次数: 0
Automated Hybrid Machine Learning System for Production 用于生产的自动混合机器学习系统
Pub Date : 2026-01-01 DOI: 10.1016/j.procir.2026.01.007
Hendrik Mende , Henrik Heymann , Laura Battistella Fiorini , Gustavo Schewinski , Dennis Grunert , Albina Karimova , Hamidreza Paria , Christian Strobl , Robert H. Schmitt , Thomas Bergs
Hybrid Machine Learning (ML) models have potential for high performance, as they learn based on data and incorporate existing knowledge. In this work, an automated system is developed which creates the best possible hybrid ML model without Data Science expertise. First, the system architecture is defined including the breakdown of functionalities into a workflow along the sub-components of the system. Then, the system is validated on a use case from optics production, i.e., quality prediction during nonisothermal glass forming. A performance comparison between a baseline ML model with the automatically generated hybrid ML model is demonstrated.
混合机器学习(ML)模型具有高性能的潜力,因为它们基于数据学习并结合现有知识。在这项工作中,开发了一个自动化系统,可以在没有数据科学专业知识的情况下创建最佳的混合ML模型。首先,定义系统架构,包括沿着系统的子组件将功能分解为工作流。然后,该系统在光学生产的一个用例上进行了验证,即非等温玻璃成型过程中的质量预测。演示了基线ML模型与自动生成的混合ML模型之间的性能比较。
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引用次数: 0
Integrated 3D Simulation and Digital Twin Framework for Collaborative Production Process Design and Planning in Small and Medium Enterprises: a Use Case Analysis 中小企业协同生产过程设计与规划的集成三维仿真和数字孪生框架:用例分析
Pub Date : 2026-01-01 DOI: 10.1016/j.procir.2026.01.010
Flavio Tonelli , Massimo Paolucci , Antonio Giovannetti , Marco Mosca , Livia Torterolo
Comprehensive frameworks for end-to-end digital supply chain planning are leveraging on 3D simulation and digital twin technologies to enhance production process design and planning also in small and medium enterprises (SMEs). The proposed system empowers production engineers by facilitating bill of material (BOM) generation, production routing, and fostering a collaborative co-design approach with external suppliers. Inspired by Product Lifecycle Management (PLM) principles, the framework is particularly geared towards quality management, emphasizing work instruction generation, and providing a seamless Industrial Internet of Things (IIoT) digital representation of the production process during the execution phase. The integration of these technologies not only optimizes production efficiency but also promotes a holistic and collaborative approach to manufacturing, ensuring SMEs can navigate the challenges of modern digital supply chains with agility and precision.
端到端数字供应链规划的综合框架正在利用3D模拟和数字孪生技术来增强中小型企业(sme)的生产流程设计和规划。所建议的系统通过促进物料清单(BOM)的生成、生产路线和促进与外部供应商的协作共同设计方法来授权生产工程师。受产品生命周期管理(PLM)原则的启发,该框架特别面向质量管理,强调工作指令生成,并在执行阶段提供生产过程的无缝工业物联网(IIoT)数字表示。这些技术的集成不仅可以优化生产效率,还可以促进整体和协作的制造方法,确保中小企业能够灵活和精确地应对现代数字供应链的挑战。
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引用次数: 0
Rule-based one-shot object tracking for NC-robots under consideration of energy consumption 考虑能量消耗的基于规则的nc机器人单次目标跟踪
Pub Date : 2026-01-01 DOI: 10.1016/j.procir.2026.01.046
Rico Löser , Leutrim Gjakova , Marco Schumann , Philipp Klimant , Martin Dix , Yunqi Gu , Ruth Maria Otto
In order to become climate neutral, significant energy savings must be achieved in European factories while preserving the economic strength. Simultaneously, new technologies are needed to enable the transition from mass production to mass customization. Cognitive robotics is a key component of this proposition to recognize the environment and dynamically adapt manufacturing behavior. The present paper discusses and evaluates a developed position control for tracking operation of NC-robots based on 2D image processing using ECC algorithm. This approach based on one-shot learning in combination with continuous movement of NC-robots allows to reduce cycle time, respectively energy consumption. Finally, the benefits of the proposed solutions are extended to on-the-fly assembly processes.
为了实现气候中和,欧洲工厂必须在保持经济实力的同时实现显著的节能。同时,需要新技术来实现从大规模生产到大规模定制的转变。认知机器人是这一命题的关键组成部分,以识别环境并动态适应制造行为。本文讨论并评价了一种基于二维图像处理的基于ECC算法的nc机器人跟踪操作位置控制。这种基于一次性学习的方法与nc机器人的连续运动相结合,可以减少循环时间和能量消耗。最后,提出的解决方案的好处被扩展到动态装配过程。
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引用次数: 0
CADLabel: Development of an annotation tool for deep learning tasks on 3D CAD models CADLabel:开发用于3D CAD模型上深度学习任务的注释工具
Pub Date : 2026-01-01 DOI: 10.1016/j.procir.2026.01.054
Marco Hussong , Marcel Nunziatino , Matthias Klar , Jan C. Aurich
The recognition of features is important in computer-aided engineering (CAE) across different applications, such as computer aided process planning (CAPP) or computer aided manufacturing (CAM). While deep learning has become a widely used approach for the recognition of features, it necessitates large datasets that are still difficult to compile. To facilitate the annotation of 3D CAD models, a novel annotation tool is introduced. The CADLabel annotation tool offers direct and indirect manual labeling modules for 3D CAD models, but it also contains a recommendation system leveraging geometrical and topological analysis with a graph neural network (GNN) to propose potential features, streamlining the annotation workflow. Additional attributes include support for multiple STEP file formats, integration to add further information to the 3D CAD model such as Product and Manufacturing Information (PMI), and the ability to export annotations in different file formats suitable for deep learning.
特征识别在计算机辅助工程(CAE)的不同应用中是重要的,例如计算机辅助工艺规划(CAPP)或计算机辅助制造(CAM)。虽然深度学习已经成为一种广泛使用的特征识别方法,但它需要大量的数据集,这些数据集仍然难以编译。为了方便对三维CAD模型进行标注,介绍了一种新的标注工具。CADLabel标注工具为3D CAD模型提供了直接和间接的手工标注模块,但它还包含一个推荐系统,利用图形神经网络(GNN)的几何和拓扑分析来提出潜在的特征,简化标注工作流程。其他属性包括支持多种STEP文件格式,集成以向3D CAD模型添加更多信息,如产品和制造信息(PMI),以及以适合深度学习的不同文件格式导出注释的能力。
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引用次数: 0
Semantic world models for object identification and localization in mobile robotics 移动机器人中目标识别与定位的语义世界模型
Pub Date : 2026-01-01 DOI: 10.1016/j.procir.2026.01.041
Patrick Rückert , Naemi Wassermann , Kirsten Tracht
Semantic world models are experiencing increasing attention as a relevant field of research in robotics. They extend classical world models by describing the state of an environment based on information that has a tangible meaning for humans. This includes, for example, the class membership of objects located within the environment and their spatial relationship. Thus, semantic models bridge the gap between humans and robots and open up new possibilities for the industrial application of mobile robotics. In this paper, a software architecture is presented that implements a semantic world model focusing on the localization and identification of object instances.
语义世界模型作为机器人领域的一个相关研究领域正受到越来越多的关注。它们通过基于对人类有实际意义的信息来描述环境的状态,从而扩展了经典的世界模型。例如,这包括位于环境中的对象的类成员关系及其空间关系。因此,语义模型弥合了人与机器人之间的差距,为移动机器人的工业应用开辟了新的可能性。本文提出了一种基于对象实例定位和识别的语义世界模型的软件体系结构。
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引用次数: 0
In-process measurement of vibrations in ultrasonic vibration superimposed turning using mechanical feedback signals 利用机械反馈信号测量超声振动叠加车削过程中的振动
Pub Date : 2026-01-01 DOI: 10.1016/j.procir.2026.01.071
Jonas M. Werner , Hendrik Liborius , Welf-Guntram Drossel , Andreas Schubert
Performance of components or systems can be significantly enhanced by surface microstructuring. Ultrasonic vibration superimposed turning is a highly efficient method for this, including the microstructuring in finish machining. However, control of these processes under varying loads is difficult and requires constant regulation of the systems operating frequency and vibration amplitude. Applying sensors to measure mechanical vibrations and using them to control the system offers benefits over conventional approaches like phase-locked-loop (PLL) or autoresonant control. In the experimental investigations, two sonotrodes are designed to integrate a variety of sensors for vibration measurement. Strain gauges, fiber-optical sensors, an accelerometer, and a passive piezoelectric disk in the ultrasonic transducer have been chosen. The performance of the sensors is examined for a free vibration as well as in an ultrasonic vibration superimposed turning process. The sensors are evaluated at different operating frequencies and power levels as well as varied loads during manufacturing resulting from different feeds (0.05 mm and 0.1 mm). Furthermore, the cutting speed is varied (120 m/min and 480 m/min) to change the rotational frequency of the spindle. Results show that all of the sensors prove useful in measuring the vibrations and determining the resonance frequency of the system during operation. The research improves understanding of the benefits of measuring different mechanical properties (strain, acceleration) in ultrasonic vibration superimposed turning, allowing for a more accurate in-process monitoring of the ultrasonic vibration and the control of the system in the future.
通过表面微结构可以显著提高部件或系统的性能。超声振动叠加车削是一种高效的加工方法,可用于精加工中的微结构加工。然而,在变化载荷下控制这些过程是困难的,并且需要不断调节系统的工作频率和振动幅度。与锁相环(PLL)或自谐振控制等传统方法相比,应用传感器来测量机械振动并使用它们来控制系统具有更大的优势。在实验研究中,设计了两个声纳电极来集成各种振动测量传感器。在超声换能器中选用了应变计、光纤传感器、加速度计和无源压电片。测试了传感器在自由振动和超声振动叠加车削过程中的性能。传感器在不同的工作频率和功率水平下进行评估,以及在制造过程中由不同进给量(0.05 mm和0.1 mm)产生的不同负载。此外,通过改变主轴的旋转频率来改变切削速度(120 m/min和480 m/min)。结果表明,所有传感器在测量系统运行时的振动和确定系统谐振频率方面都是有用的。该研究提高了人们对超声振动叠加转向中测量不同机械性能(应变、加速度)的好处的理解,允许在未来更准确地监测超声振动和控制系统。
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引用次数: 0
Security-enhanced cutting tool wear segmentation with federated learning 安全增强的切削刀具磨损分割与联邦学习
Pub Date : 2026-01-01 DOI: 10.1016/j.procir.2026.01.072
Gustavo Laydner de Melo Rosa , Alexander Gwose , Philipp Ganser , Thomas Bergs
Metal cutting tool wear evaluation is a time- and cost-consuming task. Direct measurements (manual microscopic imaging) generate sensitive microscopic tool wear images (MTWI) which, on one hand, can inaugurate this measurement’s automation and, on the other hand, hold confidential information about the cutting process. This article contains an approach for collaboratively automating tool condition monitoring (TCM) while individually preserving the privacy of clients’ images. The method developed consists of a cohort of tool wear image owners and a Federated Learning (FL) pipeline for processing synergistically the owners’ images without sharing proprietary images. Both cohort data setting and training scenario are investigated, evaluated and discussed.
金属切削刀具磨损评估是一项费时费力的工作。直接测量(人工显微成像)产生敏感的显微刀具磨损图像(MTWI),一方面可以开创这种测量的自动化,另一方面,保存有关切削过程的机密信息。本文包含一种协作自动化工具状态监控(TCM)的方法,同时单独保护客户端映像的隐私。该方法由工具磨损图像所有者队列和联邦学习(FL)管道组成,用于在不共享专有图像的情况下协同处理所有者图像。对队列数据设置和训练场景进行了调查、评估和讨论。
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引用次数: 0
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Procedia CIRP
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