Cirp Annals-Manufacturing Technology最新文献

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Slipline solution to asperity deformation under combined high normal pressure and subsurface deformation 高压法向和地下变形联合作用下的滑线解

IF 3.2 3区工程技术 Q2 ENGINEERING, INDUSTRIAL

Cirp Annals-Manufacturing Technology

Pub Date : 2025-01-01 Epub Date: 2025-04-25 DOI: 10.1016/j.cirp.2025.03.030

Chris V. Nielsen (2) , Paulo A.F. Martins (1) , Niels Bay (1)

A new set of slipline fields, along with a corresponding calculation procedure, offers an analytical solution to the flattening of asperities under high normal pressure and subsurface deformation. This new solution integrates existing slipline fields for asperity flattening at high normal pressures with those related to indentation and provides a statically admissible transition to uniform subsurface deformation under plane strain conditions. The calculation procedure effectively manages the transition from one slipline field to another, accounting for increments in both the real contact area ratio and the longitudinal strain associated with subsurface deformation. The new solution is validated against numerical simulations.

一组新的滑线场，以及相应的计算程序，为高法向压力和地下变形下的凹凸不平提供了解析解。这种新的解决方案整合了现有的在高压下的光滑场和与压痕相关的滑动场，并提供了在平面应变条件下向均匀地下变形的静态允许过渡。计算过程有效地管理了从一个滑线场到另一个滑线场的过渡，考虑了实际接触面积比和与地下变形相关的纵向应变的增量。通过数值模拟验证了新解的有效性。

引用次数: 0

Laser powder directed energy deposition and substrate-free single layer powder bed fusion under micro- and lunar gravity conditions 微月重力条件下激光粉末定向能沉积和无基体单层粉末床熔合

IF 3.2 3区工程技术 Q2 ENGINEERING, INDUSTRIAL

Cirp Annals-Manufacturing Technology

Pub Date : 2025-01-01 Epub Date: 2025-05-08 DOI: 10.1016/j.cirp.2025.03.031

Ludger Overmeyer (2) , Marvin Raupert , Matthias Pusch , Tjorben Griemsmann , André Katterfeld , Christoph Lotz

In-Space Manufacturing (ISM) needs material-efficient processes or the usage of locally available resources. This article presents two successfully applied approaches: Laser Powder Directed Energy Deposition (LP-DED) realized in microgravity on Earth for the first time using Ti-6Al-4V and substrate-free single layer powder bed fusion (PBF) under lunar gravity using LX-I50 regolith simulant. The Einstein-Elevator, a third-generation drop tower, is used to simulate the environmental conditions of space regarding gravity. The research results confirm the feasibility and open up new perspectives for space research, particularly concerning resource-efficient manufacturing technologies in future missions.

空间制造（ISM）需要材料效率高的工艺或本地可用资源的使用。本文介绍了两种成功应用的方法：利用Ti-6Al-4V首次在地球微重力条件下实现激光粉末定向能沉积（LP-DED）和利用LX-I50模拟表土在月球重力条件下实现无基体单层粉末床熔融（PBF）。“爱因斯坦电梯”是第三代落差塔，用于模拟太空重力环境条件。研究结果证实了可行性，并为空间研究开辟了新的前景，特别是关于未来任务中的资源高效制造技术。

引用次数: 0

Advances in magnetic field-assisted finishing 磁场辅助整理的研究进展

IF 3.2 3区工程技术 Q2 ENGINEERING, INDUSTRIAL

Cirp Annals-Manufacturing Technology

Pub Date : 2025-01-01 Epub Date: 2025-05-28 DOI: 10.1016/j.cirp.2025.04.097

Hitomi Yamaguchi (1) , Fukuo Hashimoto (1) , Eraldo da Silva (2) , Chi Fai Cheung (1)

Magnetic Field-Assisted Finishing (MAF) is a process that removes material by means of magnetic-abrasive tools suspended in a magnetic field. The unique behavior of magnetic-abrasive tools has given rise to various derivatives. This paper reviews the progression of MAF over the past century starting with a historical review, MAF fundamentals, and variations of MAF (e.g., polishing, edge finishing, and mass finishing). The status of MAF process modeling and a new approach to process modeling are introduced. The advantages and limitations of MAF are shown by discussing the material-removal characteristics. Lastly, potential applications and future directions for MAF research are suggested.

磁场辅助精加工（MAF）是一种通过悬浮在磁场中的磁性磨具去除材料的工艺。磁性磨具的独特性能产生了各种衍生工具。本文从历史回顾、MAF基本原理和MAF的变化（如抛光、边缘精加工和大量精加工）开始，回顾了MAF在过去一个世纪的发展。介绍了MAF过程建模的现状和一种新的过程建模方法。通过对材料去除特性的讨论，说明了MAF的优点和局限性。最后，对MAF的应用前景和未来研究方向进行了展望。

引用次数: 0

Future-Proof Production Scheduling and Control 面向未来的生产调度和控制

IF 3.2 3区工程技术 Q2 ENGINEERING, INDUSTRIAL

Cirp Annals-Manufacturing Technology

Pub Date : 2025-01-01 Epub Date: 2025-06-26 DOI: 10.1016/j.cirp.2025.04.095

Marcello Urgo (2) , Gisela Lanza (1) , Rok Vrabič (2) , Dávid Gyulai

Traditional production scheduling and control are increasingly inadequate in light of the rapid evolution of manufacturing technology, the growing impact of unforeseen disruptions, and the generally increasing complexity of production. A framework for future-proof production scheduling and control is introduced to close this gap, providing a comprehensive overview of future requirements and the necessary technologies and approaches. Robust decision criteria are derived, explained and filled with major recent advances in production scheduling and control, digital twins, artificial intelligence, and knowledge formalisation. Emerging trends are discussed, and an outlook for future research and decision-making is derived.

鉴于制造技术的快速发展，不可预见的中断的影响越来越大，以及生产的普遍增加的复杂性，传统的生产调度和控制越来越不充分。为了缩小这一差距，引入了一个面向未来的生产调度和控制框架，提供了对未来需求和必要技术和方法的全面概述。在生产调度和控制、数字孪生、人工智能和知识形式化方面，我们推导、解释并填充了稳健的决策标准。讨论了新兴趋势，并对未来的研究和决策进行了展望。

引用次数: 0

Atomic-level flat polishing of polycrystalline diamond by combining plasma modification and chemical mechanical polishing 等离子体修饰与化学机械抛光相结合的聚晶金刚石原子级平面抛光

IF 3.2 3区工程技术 Q2 ENGINEERING, INDUSTRIAL

Cirp Annals-Manufacturing Technology

Pub Date : 2025-01-01 Epub Date: 2025-04-21 DOI: 10.1016/j.cirp.2025.03.024

Song Yuan , Chi Fai Cheung (1) , Alborz Shokrani (2) , Zejin Zhan , Chunjin Wang

This paper presents an atomic-level flat polishing method based on hydroxyl (•OH) oxidation combining plasma modification and chemical mechanical polishing (CMP) of polycrystalline diamond (PCD). The PCD surface was firstly modified using •OH generated by He-based H₂O₂ plasma leading to the formation of an approximately 30 nm thick uniform oxidation layer on the PCD surface composed of carbon-oxygen mixed layer and oxygen-rich layer. Reactive force field molecular dynamics (ReaxFF MD) simulations explained the plasma modification mechanism. The modified layer was then removed using CMP resulting in an atomic-level flat surface with arithmetical mean height (Sa) of 0.366 nm.

提出了一种基于羟基（•OH）氧化的聚晶金刚石（PCD）等离子体修饰和化学机械抛光（CMP）相结合的原子级平面抛光方法。首先利用he基H2O2等离子体生成的•OH修饰PCD表面，在PCD表面形成由碳氧混合层和富氧层组成的约30 nm厚的均匀氧化层。反应力场分子动力学（ReaxFF MD）模拟解释了等离子体修饰机理。然后使用CMP去除修饰层，得到算术平均高度（Sa）为0.366 nm的原子级平面。

引用次数: 0

Mitigation of Cu dishing in chemical mechanical polishing using micro-structured pads 微结构衬垫缓解化学机械抛光中的铜盘现象

IF 3.2 3区工程技术 Q2 ENGINEERING, INDUSTRIAL

Cirp Annals-Manufacturing Technology

Pub Date : 2025-01-01 Epub Date: 2025-04-17 DOI: 10.1016/j.cirp.2025.03.016

Seulah Park , Sukkyung Kang , Dong Geun Kim , Sanha Kim (2)

Dishing is a critical defect in chemical mechanical polishing (CMP) that affects the mechanical reliability and electrical performance of hybrid bonding interfaces in semiconductor packaging. This study explores that micro-structured pad with well-defined asperity design can minimize CMP dishing. A theoretical model identifies asperity area, height variation, and modulus as key factors influencing contact pressure and dishing. Experimental results validate the model, demonstrating a 69% reduction in dishing with a soft cylindrical pad compared to a commercial pad. This improvement is attributed to increased real contact area and uniform pressure distribution due to minimized height variation and material compliance.

碟形是化学机械抛光（CMP）中的一个关键缺陷，影响半导体封装中混合键合界面的机械可靠性和电性能。本研究探讨具有明确粗糙度设计的微结构垫块可以最大限度地减少CMP盘形。理论模型确定了粗糙度面积、高度变化和模量是影响接触压力和盘形的关键因素。实验结果验证了该模型，表明与商业垫相比，使用软圆柱形垫可以减少69%的盘子。这种改进是由于实际接触面积的增加和均匀的压力分布，由于最小的高度变化和材料的顺应性。

引用次数: 0

Sub-surface sinking effect of reinforcement particle in laser assisted machining of metal matrix composites 激光辅助加工金属基复合材料中增强颗粒的亚表面沉降效应

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.2025.04.041

Omkar Mypati , Zhirong Liao (2) , Shusong Zan , Rachid M'Saoubi (1) , Dragos Axinte (1)

Aluminium-based SiC particle-reinforced metal matrix composites are widely used in engineering applications due to their exceptional mechanical properties. However, their machining remains challenging due to the mismatch of material properties between the brittle SiC particles and the ductile aluminium matrix, causing tool wear and surface damage. To mitigate these issues, laser inverse problem scanning is utilised to strategically melt the top layer aluminium matrix, allowing the SiC particles to sink and promoting more ductile Al-matrix. The strategic hybrid laser milling approach optimises particle sinking, reduces tool wear and enhances surface integrity by minimising particle fracture, pullout and refining microstructure.

铝基碳化硅颗粒增强金属基复合材料以其优异的力学性能在工程中得到了广泛的应用。然而，由于脆性SiC颗粒和韧性铝基体之间的材料特性不匹配，导致刀具磨损和表面损伤，因此它们的加工仍然具有挑战性。为了缓解这些问题，激光反问题扫描被用于有策略地熔化顶层铝基体，允许SiC颗粒下沉并促进更具延展性的al基体。战略性混合激光铣削方法优化了颗粒下沉，减少了刀具磨损，通过最大限度地减少颗粒断裂、拔出和细化微观结构，提高了表面完整性。

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A novel approach to milling cutter temperature analysis with cutting fluid consideration 考虑切削液的铣刀温度分析新方法

IF 3.2 3区工程技术 Q2 ENGINEERING, INDUSTRIAL

Cirp Annals-Manufacturing Technology

Pub Date : 2025-01-01 Epub Date: 2025-04-21 DOI: 10.1016/j.cirp.2025.04.020

Thomas Bergs (2) , Hui Liu

This study investigates heat transfer to the tool and the cooling efficiency of flood cooling under various cutting conditions using experiments and simulations. An experimental apparatus was developed to measure tool temperature during side milling with cutting fluid. Furthermore, a computationally efficient multiscale simulation method, combining engagement simulation and orthogonal cutting simulation, is introduced to predict process forces and heat transfer to the tool. The findings indicate that accurate orthogonal cutting models enable the multiscale simulation to predict cutting forces and heat transfer. The higher computation speed compared to chip-forming simulations makes the proposed method well-suited for industrial applications.

本研究采用实验和模拟的方法研究了不同切削条件下的刀具传热和冷却效率。研制了一种测量切削液侧铣削过程刀具温度的实验装置。此外，引入了一种计算效率高的多尺度模拟方法，结合啮合模拟和正交切削模拟，来预测加工力和刀具的传热。研究结果表明，精确的正交切削模型可以实现多尺度切削力和传热的预测。与芯片成形模拟相比，该方法具有较高的计算速度，适合于工业应用。

引用次数: 0

Physics-based modelling and validation of dynamically varying thermal and mechanical residual stress fields in finish machining of aerospace alloys 航空航天合金精加工中动态变化热、机械残余应力场的物理建模与验证

IF 3.2 3区工程技术 Q2 ENGINEERING, INDUSTRIAL

Cirp Annals-Manufacturing Technology

Pub Date : 2025-01-01 Epub Date: 2025-04-25 DOI: 10.1016/j.cirp.2025.04.078

Julius Schoop, I.S. Jawahir (1)

While the physics of chip formation have been widely studied, there remains a need for greater qualitative and quantitative understanding of the way thermal and mechanical loads, and particularly their dynamic variability across length and time scales affect both the magnitude and variability of machining-induced residual stress (MIRS). This paper leverages an advanced in-situ characterization technique along with a physics-based process model to accurately and quickly predict key MIRS variables for aerospace alloys Inconel 718 and Ti-6Al4V. Our analysis clearly shows opportunities for digitally enabled predictability of engineered surface integrity to evaluate the fatigue performance of aerospace alloys more effectively.

虽然切屑形成的物理学已经得到了广泛的研究，但仍然需要对热载荷和机械载荷的方式进行更多的定性和定量理解，特别是它们在长度和时间尺度上的动态变化对加工诱导残余应力（MIRS）的大小和可变性的影响。本文利用先进的原位表征技术以及基于物理的过程模型，准确快速地预测航空航天合金Inconel 718和Ti-6Al4V的关键MIRS变量。我们的分析清楚地表明，工程表面完整性的数字化可预测性可以更有效地评估航空航天合金的疲劳性能。

引用次数: 0

Constellation-based robotic visual servoing method for fault diagnosis of used printed circuit board assemblies 基于星座的机器人视觉伺服在印制板组件故障诊断中的应用

IF 3.2 3区工程技术 Q2 ENGINEERING, INDUSTRIAL

Cirp Annals-Manufacturing Technology

Pub Date : 2025-01-01 Epub Date: 2025-06-04 DOI: 10.1016/j.cirp.2025.04.080

Bence Tipary , Gábor Erdős (2) , Zsolt Kemény

The mainstream of diagnostic approaches of printed circuit board assemblies is optimised for large-scale industrial production, and is less suited for repair and maintenance during later stages of the product life-cycle. Main challenges include sparse documentation, small batch sizes and high product diversity, to which existing solutions are too costly, bulky or parameter-sensitive for industrial use. The paper presents a novel approach using computer vision, visual servoing and digital twins for robotic positioning of a measuring probe head. Subject to patent application, the method has proven its feasibility and affordability in live industrial practice with 99.80% success rate.

印刷电路板组件的主流诊断方法是针对大规模工业生产进行优化的，不太适合产品生命周期后期的维修和维护。主要的挑战包括稀疏的文档、小批量和高产品多样性，现有的解决方案对于工业用途来说过于昂贵、笨重或对参数敏感。本文提出了一种利用计算机视觉、视觉伺服和数字孪生技术实现测量探头机器人定位的新方法。经专利申请，该方法在现场工业实践中证明了其可行性和可承受性，成功率达99.80%。

引用次数: 0

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