Cirp Annals-Manufacturing Technology最新文献

英文中文

Design and control of flexible handling systems based on mobile cooperative multi-robot-systems 基于移动协同多机器人系统的柔性搬运系统设计与控制

IF 3.2 3区工程技术 Q2 ENGINEERING, INDUSTRIAL

Cirp Annals-Manufacturing Technology

Pub Date : 2025-01-01 Epub Date: 2025-04-28 DOI: 10.1016/j.cirp.2025.04.059

Tobias Recker, Annika Raatz (2)

This study introduces a scalable control framework for Cooperative Multi-Robot Systems (cMRS), enhancing flexibility in manufacturing by adapting single-robot motion sequences to multi-robot setups. The framework addresses kinematic overdetermination via a Virtual Robot Model (VRM), which centralizes motion specification without straining computational resources, allowing seamless scaling. Experimental results demonstrate that cMRS configurations with varying robot numbers can achieve object transport and handling with accuracy comparable to single-robot systems under admittance control. Although larger configurations show increased maximum tracking errors, average accuracy remains stable, demonstrating the framework’s effectiveness for scalable cooperative robotics.

本研究介绍了一种可扩展的多机器人协作系统（cMRS）控制框架，通过将单机器人运动序列适应多机器人设置来提高制造的灵活性。该框架通过虚拟机器人模型（VRM）解决了运动学过度确定问题，该模型集中了运动规范，而不会使计算资源紧张，从而允许无缝缩放。实验结果表明，不同机器人数量的cMRS配置可以实现与导纳控制下的单机器人系统相当的物体运输和搬运精度。虽然更大的配置显示最大跟踪误差增加，但平均精度保持稳定，证明了框架对可扩展协作机器人的有效性。

引用次数: 0

Customization and personalization of large language models for engineering design 用于工程设计的大型语言模型的定制和个性化

IF 3.2 3区工程技术 Q2 ENGINEERING, INDUSTRIAL

Cirp Annals-Manufacturing Technology

Pub Date : 2025-01-01 Epub Date: 2025-04-02 DOI: 10.1016/j.cirp.2025.03.001

Zhoumingju Jiang , Ang Liu (2) , Dawen Zhang , Xiwei Xu , Yun Dai

Large language models (LLMs) are increasingly used in design and manufacturing, yet directly employing general-purpose LLMs for conceptual design often leads to unmanufacturable concepts. This paper aims to adapt general-purpose LLMs for design-specific tasks. A new framework is presented to customize a general-purpose LLM into a design-specific model based on design-relevant data and Retrieval-Augmented Generation (RAG). Another complementary framework is presented to personalize the design-specific LLM by integrating design reasoning with prompting techniques. A design experiment, using patent documents as the design-relevant data, demonstrates that customization and personalization can improve LLM effectiveness in conceptual design, especially by enhancing concept feasibility.

大型语言模型（llm）越来越多地用于设计和制造，然而直接使用通用llm进行概念设计通常会导致不可制造的概念。本文旨在使通用法学硕士适应特定于设计的任务。提出了一种基于设计相关数据和检索增强生成（RAG）的通用法学硕士定制为特定设计模型的新框架。另一个补充框架提出了个性化的设计特定的法学硕士通过集成设计推理与提示技术。一项以专利文献为设计相关数据的设计实验表明，定制化和个性化可以提高LLM在概念设计中的有效性，特别是通过增强概念可行性。

引用次数: 0

Improving cutting performance of nickel-based alloy by graphene modified diamond tools 石墨烯改性金刚石刀具提高镍基合金切削性能

IF 3.2 3区工程技术 Q2 ENGINEERING, INDUSTRIAL

Cirp Annals-Manufacturing Technology

Pub Date : 2025-01-01 Epub Date: 2025-04-22 DOI: 10.1016/j.cirp.2025.04.034

Ni Chen, Huiwen Chen, Bo Yan, Zhiyuan Mao, Ahsan Imran, Guolong Zhao, Ning He

Inconel 718 is widely used in aerospace due to thermomechanical properties, but machining causes rapid tool wear. This study develops a covalent diamond-nanographite-graphene (CDGG) tool using nanosecond lasers and flywheel cleavage to convert sp³ diamond into sp² graphene, welds it onto a carbide handle, and sharpens cutting edges. The friction-wear tests and cutting experiments show that CDGG tool’s apparent friction coefficient is 49–59 % lower than diamond tool, rake face wear depth is 55–65 % lower than diamond tool, 75–85 % lower than ceramic tool. Graphene forms self-lubricating layers, minimizes wear, and enhances Inconel 718 machining efficiency and tool durability.

Inconel 718因其热机械性能广泛应用于航空航天领域，但加工过程中导致刀具快速磨损。本研究开发了一种共价金刚石-纳米石墨烯（CDGG）工具，使用纳秒激光和飞轮解理将sp³金刚石转化为sp²石墨烯，将其焊接到硬质合金手柄上，并使切削刃更加锋利。摩擦磨损试验和切削实验表明，CDGG刀具的表观摩擦系数比金刚石刀具低49 ~ 59%，前刀面磨损深度比金刚石刀具低55 ~ 65%，比陶瓷刀具低75 ~ 85%。石墨烯形成自润滑层，最大限度地减少磨损，提高Inconel 718的加工效率和刀具耐用性。

引用次数: 0

Hybrid modelling predicting forming behavior with variations in AlMgSi1 alloys 混合模型预测AlMgSi1合金的变形行为

IF 3.2 3区工程技术 Q2 ENGINEERING, INDUSTRIAL

Cirp Annals-Manufacturing Technology

Pub Date : 2025-01-01 Epub Date: 2025-04-28 DOI: 10.1016/j.cirp.2025.03.005

Kristian Martinsen (3) , Thawin Hart-Rawung , Jon Holmestad , Johan Andreas Stendal , Sverre Gulbrandsen-Dahl , Ole Runar Myhr

This paper shows how hybrid modeling combining a physics-based Precipitation Model and a data-driven Gaussian Process Regression model can be used to predict flow stress curves of different variants of AlMgSi1 alloys. The approach can be a step towards a methodology to manage higher variability in input material, such as remelted contaminated post-consumer aluminum scrap. Data from laboratory compression tests of six different compositional variations of AlMgSi1 with different contents of Si, Cu, and Mg was used. The proposed hybrid model aligns well with experimental results both within the training data range and inputs beyond the training range.

本文展示了基于物理的沉淀模型和数据驱动的高斯过程回归模型相结合的混合模型如何用于预测AlMgSi1合金不同变体的流变应力曲线。这种方法可以成为一种方法，用于管理输入材料的较高可变性，例如消费后重新熔化的受污染的铝废料。数据来自实验室压缩试验的六种不同的组成变化的AlMgSi1与不同含量的Si， Cu和Mg。所提出的混合模型无论在训练数据范围内还是在训练数据范围外，都与实验结果吻合良好。

引用次数: 0

Vision-based robotic disassembly of aircraft engines with YOLO-SAM: a novel method for task orientation estimation 基于视觉的飞机发动机机器人拆卸YOLO-SAM：一种新的任务定位估计方法

IF 3.2 3区工程技术 Q2 ENGINEERING, INDUSTRIAL

Cirp Annals-Manufacturing Technology

Pub Date : 2025-01-01 Epub Date: 2025-04-26 DOI: 10.1016/j.cirp.2025.04.063

Angelo Moroncelli , Sylvain Populus , Armand Rossi , Emanuele Carpanzano (1) , Loris Roveda

The growing demand for sustainable end-of-life management in aerospace has increased the need for robotic disassembly. This paper presents a novel pipeline for aircraft engine disassembly, operating in automatic and semi-automatic modes with state-of-the-art vision-based techniques. The key contributions are: (1) a method combining the Segment Anything Model (SAM) with YOLO for detecting removable bolts, independent of engine model and adaptable to various worn bolt types using vision-only perception; and (2) a SAM-based approach for estimating task orientation, ensuring precise tool alignment. Validated in simulations and real-world tests, the pipeline demonstrates high accuracy and adaptability for solutions in aerospace manufacturing.

航空航天领域对可持续报废管理日益增长的需求增加了对机器人拆卸的需求。本文提出了一种新型的飞机发动机拆卸管道，该管道采用最新的视觉技术，在自动和半自动模式下运行。主要贡献有：(1)一种将分段任意模型（SAM）与YOLO相结合的方法，用于检测可拆卸螺栓，该方法独立于发动机型号，并使用仅视觉感知适应各种磨损螺栓类型；(2)基于sam的估算任务方向的方法，确保精确的工具对齐。经过仿真和实际测试验证，该管道在航空航天制造解决方案中具有很高的精度和适应性。

引用次数: 0

Removal mechanism of diamond/Al composites in blasting erosion arc machining 喷蚀电弧加工中金刚石/铝复合材料的去除机理

IF 3.2 3区工程技术 Q2 ENGINEERING, INDUSTRIAL

Cirp Annals-Manufacturing Technology

Pub Date : 2025-01-01 Epub Date: 2025-04-28 DOI: 10.1016/j.cirp.2025.04.019

Lin Gu (2) , Lijie Jiang , Kelin Li , Xiaoka Wang

Diamond/Al composites are promising materials for thermal management, but the presence of diamond particles makes them extremely difficult-to-cut. To address this challenge, blasting erosion arc machining (BEAM) is suggested for its high efficiency. The removal mechanism, particularly the influence of diamond particles, was first studied through magnetohydrodynamics and heat transfer simulations. Further analysis revealed how differences in the thermal properties between the reinforcements and the matrix result in distinct solid-liquid-gas phase transitions. The debris morphology and composition were analyzed to further clarify the removal mechanism. Experiments confirmed the high-efficiency machining performance of BEAM in diamond/Al composites.

金刚石/铝复合材料是一种很有前途的热管理材料，但金刚石颗粒的存在使其极难切割。为了解决这一难题，人们提出了效率高的喷砂蚀弧加工方法（BEAM）。首先通过磁流体动力学和传热模拟研究了去除机理，特别是金刚石颗粒的影响。进一步的分析揭示了增强材料和基体之间的热性能差异如何导致不同的固-液-气相变。分析了碎屑形态和成分，进一步阐明了去除机理。实验证实了BEAM在金刚石/铝复合材料中的高效加工性能。

引用次数: 0

Printability assessment and modelling for process optimization of 3D Aerosol Jet® printed high aspect ratio microstructures 3D气溶胶喷射®打印高纵横比微结构的工艺优化的可打印性评估和建模

IF 3.2 3区工程技术 Q2 ENGINEERING, INDUSTRIAL

Cirp Annals-Manufacturing Technology

Pub Date : 2025-01-01 Epub Date: 2025-04-28 DOI: 10.1016/j.cirp.2025.04.062

Elisabetta Ceretti (2) , Mohit Sharma , Eleonora Ferraris (2) , Paola Serena Ginestra , Miriam Seiti

The printability assessment of high-aspect-ratio structures in additive manufacturing is critical for ensuring dimensional accuracy and functional properties. This study proposes a method to evaluate print quality by quantifying metrics, including accuracy, shape fidelity and line edge quality, using advanced imaging and predictive analysis. A printability index is developed to relate these metrics to process parameters, here applied to Aerosol Jet® Printing. By validating structures’ quality and optimizing parameters, the index effectively improves process stability, reduces defects, and enhances structural precision. This approach provides a robust tool for process optimization, ensuring consistent results in complex high-aspect-ratio designs, further advancing printing scalability and reproducibility.

增材制造中高纵横比结构的可打印性评估对于确保尺寸精度和功能性能至关重要。本研究提出了一种通过量化指标来评估打印质量的方法，包括精度、形状保真度和线条边缘质量，使用先进的成像和预测分析。可印刷性指数的发展，将这些指标与工艺参数，这里应用于气溶胶喷射®打印。该指标通过对结构质量的验证和参数的优化，有效地提高了工艺稳定性，减少了缺陷，提高了结构精度。这种方法为工艺优化提供了一个强大的工具，确保在复杂的高纵横比设计中获得一致的结果，进一步提高了打印的可扩展性和可重复性。

引用次数: 0

Characterization of the high-pressure suspension jet for efficient cutting and abrasive circularity 高压悬浮射流高效切割和磨料圆度的表征

IF 3.2 3区工程技术 Q2 ENGINEERING, INDUSTRIAL

Cirp Annals-Manufacturing Technology

Pub Date : 2025-01-01 Epub Date: 2025-05-06 DOI: 10.1016/j.cirp.2025.04.067

Florian Morczinek , Martin Dix (3) , Rafael Wertheim (1)

To optimize the workpiece removal process and maximize the fraction of reusable abrasive particles, it is necessary to ascertain the characteristics of the high-pressure suspension jet process, including the kinetic energy of the particles in the jet. In this study, the particle velocity and the change in their size were measured and analyzed. It was found that due to breakage the average particle size decreases by up to 35 % during the acceleration process in the nozzle. The results showed that the particle size has insignificant influence on particle velocity, while the kinetic energy of an average particle decreased by up to 72 %.

为了优化工件去除工艺，最大限度地提高可重复使用磨料颗粒的比例，需要确定高压悬浮射流过程的特性，包括射流中颗粒的动能。在本研究中，测量和分析了颗粒的速度及其大小的变化。研究发现，在喷嘴加速过程中，由于破碎，平均粒径降低了35%。结果表明，粒径对颗粒速度的影响不显著，而平均颗粒的动能降低了72%。

引用次数: 0

Effect of layer thickness in laser powder bed fusion of HWTS 50 hot work tool steel 激光粉末床熔敷层厚度对HWTS 50热加工工具钢熔敷效果的影响

IF 3.2 3区工程技术 Q2 ENGINEERING, INDUSTRIAL

Cirp Annals-Manufacturing Technology

Pub Date : 2025-01-01 Epub Date: 2025-05-23 DOI: 10.1016/j.cirp.2025.03.004

Sasan Dadbakhsh , Sinesh Vadakkekkara , Ashik Mansingh Anila , Lorena Emanuelli , Massimo Pellizzari , Faraz Deirmina

This work optimises and analyses the processing of a new lean tool steel (Osprey® HWTS 50), using laser powder bed fusion (PBF-LB) at 80 °C preheating and different layer thicknesses (20 µm vs. 40 µm). Full density is reached via a higher volumetric energy density (VED) for the lower layer thickness. After optimising contours, reducing surface roughness and ensuring no microcrack formation, the tensile properties are rather comparable in both cases (UTS ∼ 1500 MPa, elongation ∼ 10–12%). However, yield strength, hardness and residual stresses are slightly higher for the lower layer thickness. The geometrical freedom for intricate features is nevertheless comparable.

本工作优化和分析了一种新型精益工具钢（Osprey®HWTS 50），在80°C预热和不同层厚度（20 μ m和40 μ m）下使用激光粉末床熔合（PBF-LB）进行加工。对于较低的层厚度，通过较高的体积能量密度（VED）达到全密度。在优化轮廓，降低表面粗糙度并确保没有微裂纹形成后，两种情况下的拉伸性能相当相似（UTS ~ 1500 MPa，伸长率~ 10-12%）。然而，层厚越低，屈服强度、硬度和残余应力越高。然而，复杂特征的几何自由度是可以比较的。

引用次数: 0

Advanced double-flush riveting for multistage forming tools 先进的双冲铆多阶段成形工具

IF 3.2 3区工程技术 Q2 ENGINEERING, INDUSTRIAL

Cirp Annals-Manufacturing Technology

Pub Date : 2025-01-01 Epub Date: 2025-04-23 DOI: 10.1016/j.cirp.2025.03.040

Carlos M.A. Silva , João P.M. Pragana , Rui F.V. Sampaio , Ivo M.F. Bragança , Paulo A.F. Martins (1)

This paper presents a novel double-flush riveting process for creating lap joints in sheet metal parts. The process involves punching, forging, and shaving to produce countersunk holes with precise geometry, followed by compression of cylindrical rivets into the holes of two overlapped sheet parts to create form-closed mechanical interlocks. Experimental and numerical analyses examine the influence of the primary process parameters on interlock quality and required forming and destructive forces. The investigation is a step forward in joining technology by offering a simple alternative to welding, bonding, and mechanical joining, with seamless integration into multistage forming tools.

本文提出了一种用于板料零件搭接的新型双平头铆接工艺。该工艺包括冲孔、锻造和剃削，以产生精确几何形状的沉孔，然后将圆柱形铆钉压缩到两个重叠的薄板零件的孔中，以形成封闭的机械联锁。实验和数值分析考察了主要工艺参数对联锁质量的影响以及所需的成形力和破坏力。这项研究是连接技术的一个进步，提供了一种简单的替代焊接、粘合和机械连接的方法，可以无缝集成到多阶段成形工具中。

引用次数: 0

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