CIRP Journal of Manufacturing Science and Technology最新文献_第6页

Analytical modelling and experimental validation of novel surface-embedded maglev coupling for 2D valve considering the manufacturability of permanent magnet 考虑永磁体可制造性的新型二维阀面嵌入式磁浮联轴器分析建模与实验验证

IF 5.4 2区工程技术 Q2 ENGINEERING, MANUFACTURING

CIRP Journal of Manufacturing Science and Technology

Pub Date : 2025-10-27 DOI: 10.1016/j.cirpj.2025.10.004

Leidi Wang, Bin Meng, Yuzhou Huang

The manufacturability of permanent magnets (PMs) has always been a critical consideration in the design of 2D valve’s maglev couplings. The existing surface-mounted magnetic screw mechanism (SMMSM) suffers from complex manufacturing of helical PMs, resulting in poor assembly accuracy and air-gap uniformity. This paper presents a novel surface-embedded maglev coupling (SEMC), in which the surface-embedded magnetic circuit topology with standardized rectangular PMs significantly improves the manufacturability of PMs and assembly accuracy. To enable rapid and accurate prediction of output torque, an analytical model is established based on the field-circuit combined method. Sub-models for PM leakage flux, air gap reluctance, and soft magnetic component reluctance are built with the assistance of Maxwell platform. Considering the nonlinear permeability of the soft magnetic component, the permeability curve is divided into three regions to improve the modeling accuracy. The effects of key structural parameters on the output torque are investigated to guide the development of the prototype. A dedicated experimental platform is built to test the static and dynamic characteristics of SEMC. Experimental results show that the output torque is 0.625 Nm, and the step response time is 34.2 ms at a displacement of 1 mm. Then, SEMC is applied to a 2D electro-hydraulic proportional flow valve (2D-EHPFV) to verify its feasibility. Experimental results show that, at 7 MPa, the maximum no-load flow rate is 101.6 L/min, and the amplitude and phase frequency width are 48.5 Hz, and 30.6 Hz, respectively. The comparison indicates that SEMC outperforms SMMSM in manufacturability and application performance, which exhibits its potential for civil electro-hydraulic proportional control applications.

永磁体的可制造性一直是二维阀式磁悬浮联轴器设计中需要考虑的关键问题。现有的表面贴装磁螺杆机构（SMMSM）由于螺旋电机制造复杂，导致装配精度和气隙均匀性差。提出了一种新型的表面埋入式磁浮耦合（SEMC），其表面埋入式磁路拓扑结构具有标准化的矩形永磁转子，显著提高了永磁转子的可制造性和装配精度。为了快速准确地预测输出转矩，建立了基于场路组合法的解析模型。利用Maxwell平台建立了永磁漏磁、气隙磁阻和软磁元件磁阻的子模型。考虑到软磁分量的非线性磁导率，为提高建模精度，将磁导率曲线划分为3个区域。为指导样机的研制，研究了关键结构参数对输出转矩的影响。搭建了专用的实验平台，对SEMC的静态和动态特性进行了测试。实验结果表明，在位移为1 mm时，输出扭矩为0.625 Nm，阶跃响应时间为34.2 ms。然后，将SEMC应用于2D电液比例流量阀（2D- ehpfv），验证其可行性。实验结果表明，在7 MPa时，最大空载流量为101.6 L/min，幅值为48.5 Hz，相频宽为30.6 Hz。结果表明，SEMC在可制造性和应用性能上均优于SMMSM，显示出其在民用电液比例控制领域的应用潜力。

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引用次数: 0

A new strategy to reduce node accumulation in wire-arc directed energy deposition of multi-grid aluminium structures 一种减少多网格铝结构电弧定向能沉积中节点堆积的新策略

IF 5.4 2区工程技术 Q2 ENGINEERING, MANUFACTURING

CIRP Journal of Manufacturing Science and Technology

Pub Date : 2025-10-25 DOI: 10.1016/j.cirpj.2025.10.006

Qiwen Zheng , Shuncheng Kang , Hengrui Li , Yugang Miao , Bintao Wu

For multi-grid aluminium component fabricated by wire-arc directed energy deposition, sharp-corner intersections often experience excessive material accumulation and dimensional deviation. To address this challenge, this study proposed a Flat-Top Corner Model (FTCM) in which sharp vertices were replaced with short linear segments to reduce self-overlapping areas while maintaining intrinsic corner angles. Geometric analysis showed that FTCM could decrease self-overlapping by up to 59 % in 30° corners and 17 % in 90° corners, limiting peak height differences between nodes to less than 3 mm. Experimental validation on X, K, and K′ type nodes further demonstrated that FTCM could improve corner morphology by suppressing localized peak formation, stabilize molten pool dynamics, and enhance layer-to-layer bonding. The research outcomes offer an effective strategy for mitigating material buildup and provide guidance for high-precision and large-scale additive manufacturing of multi-grid component.

对于采用线弧定向能沉积法制造的多栅格铝构件，尖角交点往往会产生过多的材料积累和尺寸偏差。为了解决这一挑战，本研究提出了一种平顶角模型（FTCM），其中尖锐的顶点被短线性段取代，以减少自重叠区域，同时保持固有角的角度。几何分析表明，FTCM可以将30°角的自重叠减少59 %，90°角的自重叠减少17 %，将节点之间的峰高差限制在3 mm以下。对X、K和K′型节点的实验验证进一步表明，FTCM可以通过抑制局部峰的形成来改善拐角形貌，稳定熔池动力学，增强层间键合。研究成果为减少材料堆积提供了有效的策略，为高精度、大规模的多网格部件增材制造提供了指导。

引用次数: 0

Improving surface quality and mechanical strength through the optimization and enhancement of Fused Deposition Modelling (FDM) for non-planar 3D printing 通过优化和增强非平面3D打印的熔融沉积建模（FDM），提高表面质量和机械强度

IF 5.4 2区工程技术 Q2 ENGINEERING, MANUFACTURING

CIRP Journal of Manufacturing Science and Technology

Pub Date : 2025-10-23 DOI: 10.1016/j.cirpj.2025.10.003

Naiara Poli Veneziani Sebbe , João Paulo Marques Magalhães Costa , Rafael Resende Lucas , Arnaldo Manuel Guedes Pinto , André Filipe Varandas Pedroso , Francisco José Gomes da Silva , Rita de Cássia Mendonça Sales-Contini

This study aims to enhance the Fused Deposition Modelling (FDM) printing process by utilizing a printing method that deviates from traditional planar techniques and incorporates three-dimensional (3D) layers, assessing the features and qualities of the 3-axis non-planar FDM printing process. To achieve this, the primary specifications of the printer used were analysed and fine-tuned. Planar samples were printed with angles varying from 10º to 30º and extrusion widths between 0.3 mm and 0.7 mm. Concentric and parabolic structures were produced using the planar printing method to examine how the parameters affect the quality of the printed samples. Based on the initial findings, the parameters were refined for printing widths between 0.4 mm and 0.6 mm, while variations were made in printing speed, extrusion multiplier, and overlap. Additionally, investigations were conducted on mechanical strength, increased printing angle (50º to 90º), and roughness assessments of both planar and non-planar surfaces. By constructing a test component to evaluate the practicality of non-planar printing, the findings indicated the potential to modify the 3D printer to produce non-planar forms, thereby improving strength by up to 11 % for non-planar XY mechanical samples and up to 24 % for non-planar Z samples, and featuring designs with diverse angles up to higher angles (90°). The roughness results indicated a 61.7 % improvement in surface quality for the non-planar printing technique and a 34 % improvement for the optimized non-planar printing technique compared to the planar technique. Furthermore, this technique proves to be environmentally friendly as it eliminates the need for support.

本研究旨在通过利用一种与传统平面技术不同的打印方法，结合三维（3D）层，来增强熔融沉积建模（FDM）打印过程，评估三轴非平面FDM打印过程的特征和质量。为了实现这一目标，对所使用的打印机的主要规格进行了分析和微调。平面样品的打印角度从10º到30º不等，挤压宽度在0.3 mm到0.7 mm之间。采用平面印刷方法制备了同心圆和抛物线结构，考察了各参数对印刷样品质量的影响。根据最初的研究结果，优化了打印宽度在0.4 mm到0.6 mm之间的参数，同时对打印速度、挤出倍率和重叠进行了调整。此外，还对机械强度、增加的打印角度（50º至90º）以及平面和非平面表面的粗糙度进行了研究。通过构建一个测试组件来评估非平面打印的实用性，研究结果表明，修改3D打印机以产生非平面形状的潜力，从而将非平面XY机械样品的强度提高了11% %，非平面Z样品的强度提高了24% %，并且具有从不同角度到更高角度（90°）的设计。粗糙度结果表明，与平面印刷技术相比，优化后的非平面印刷技术的表面质量提高了61.7 %，优化后的非平面印刷技术的表面质量提高了34 %。此外，这项技术证明是环保的，因为它不需要支持。

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引用次数: 0

Thermal error prediction of CNC Swiss-type lathe under variable operating conditions based on symbolic regression and time series mixup enhancement 基于符号回归和时间序列混合增强的数控瑞士型车床变工况热误差预测

IF 5.4 2区工程技术 Q2 ENGINEERING, MANUFACTURING

CIRP Journal of Manufacturing Science and Technology

Pub Date : 2025-10-17 DOI: 10.1016/j.cirpj.2025.09.018

Shan Wu , Lingfei Kong , Aokun Wang , Xiaoyang Feng

Accurately predicting thermal errors is vital for developing effective strategies to compensate for them. Machine learning thermal errors models (ML-TEMs) offer significant advantages over traditional regression models. However, current ML-TEMs, such as neural networks and support vector machines, are black-box models. These models lack interpretability and are challenging to apply in engineering. Additionally, these methods depend heavily on extensive amounts of training data. The scarcity of labeled time-series data for Swiss-type lathe may hinder the model's ability to generalize across varying operating conditions. To address these issues, this paper proposes a symbolic regression model based on Time Series Mixup (TSM) enhancement. The TSM method was used to enhance the training data. The optimal interpretable model is obtained through fitness assessment and screening. The proposed model exhibits high prediction accuracy. In particular, it demonstrates superior accuracy and stability under complex operating conditions with random variations.

准确预测热误差对于制定有效的补偿策略至关重要。与传统的回归模型相比，机器学习热误差模型（ml - tem）具有显著的优势。然而，目前的ml - tem，如神经网络和支持向量机，都是黑盒模型。这些模型缺乏可解释性，在工程应用中具有挑战性。此外，这些方法严重依赖于大量的训练数据。瑞士型车床标记的时间序列数据的稀缺性可能会阻碍模型的能力，以概括不同的操作条件。针对这些问题，本文提出了一种基于时间序列混合（TSM）增强的符号回归模型。采用TSM方法对训练数据进行增强。通过适应度评估和筛选得到最优的可解释模型。该模型具有较高的预测精度。特别是，在随机变化的复杂操作条件下，它表现出优越的精度和稳定性。

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引用次数: 0

Refrigeration-based cooling for grinding 基于制冷的研磨冷却

IF 5.4 2区工程技术 Q2 ENGINEERING, MANUFACTURING

CIRP Journal of Manufacturing Science and Technology

Pub Date : 2025-10-15 DOI: 10.1016/j.cirpj.2025.10.002

Gibin George, Dinesh Setti, Vineed Narayanan, Pramod Kuntikana

A dry grinding technique in which the workpiece bulk is utilized as an efficient heat sink for the grinding heat is introduced. In this method, the workpiece is continuously cooled using a refrigeration circuit integrated into the workpiece holding device. This makes the technique different from the traditional cooling or lubrication techniques, whose performance depends on the efficiency of the medium supplied to the grinding zone. The performance of refrigeration-based cooling was compared with liquid cooling and grinding without any cooling, in which the workpiece bulk at room temperature is used as a heat sink. The comparison was made in terms of specific grinding forces, specific grinding energy, temperature, wheel wear, and workpiece quality for specific material removal rates varying between

150

and

250 {mm}^{3} / \min . mm

. The effect of workpiece dimensions on refrigeration-based cooling was also investigated using workpieces with varying volume-to-surface area ratios. Refrigeration cooling was more efficient in reducing grinding forces at a higher specific material removal rate than other techniques. This was attributed to the higher effectiveness of refrigeration cooling in promoting resharpening of the wheel, as inferred through the comparison of wear flat formation on the wheel. The study of the subsurface of the ground specimen indicated the ability of refrigeration cooling to prevent thermal softening. However, at low material removal rates, the beneficial effect of refrigeration cooling was not evident compared to liquid cooling.

介绍了一种干式磨削技术，该技术利用工件体作为磨削热的有效散热器。在该方法中，使用集成在工件保持装置中的制冷回路对工件进行连续冷却。这使得该技术不同于传统的冷却或润滑技术，其性能取决于提供给研磨区的介质的效率。将基于制冷的冷却与液体冷却和无冷却磨削的性能进行了比较，其中在室温下工件体作为散热片。在150 ~ 250mm3/min.mm的特定材料去除率下，对比磨削力、比磨削能、温度、砂轮磨损和工件质量进行了比较。工件尺寸对基于制冷的冷却的影响也进行了研究，使用不同体积与表面积比的工件。制冷冷却在降低磨削力方面比其他技术更有效，具有更高的具体材料去除率。这是由于制冷冷却在促进车轮的再锐化的更高效率，通过车轮上的磨损形成的比较推断。对地下试样的研究表明，制冷冷却能够防止热软化。然而，在材料去除率较低的情况下，制冷冷却的有益效果与液体冷却相比并不明显。

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引用次数: 0

Cutter design and generating process for tooth profile chamfering of involute cylindrical gears with cylindrical tools 用圆柱刀具进行渐开线圆柱齿轮齿廓倒角的刀具设计及加工工艺

IF 5.4 2区工程技术 Q2 ENGINEERING, MANUFACTURING

CIRP Journal of Manufacturing Science and Technology

Pub Date : 2025-10-14 DOI: 10.1016/j.cirpj.2025.09.019

Qi Dong, Yuwen Sun

Gear tooth profile chamfering plays a crucial role in mitigating stress concentration and reducing meshing impact. However, chamfer grinding and radial chamfering are inefficient because the tools for both methods work individually along the end face profile. Additionally, resharpening error occurs in the chamfer hobbing method because the contour of conical chamfer hobbing tool changes after resharpening. Considering that cylindrical tools enable continuous cutting at high speeds by engaging with the gear to be chamfered and maintains a constant cross-sectional profile, this study proposes a tooth profile chamfering method of involute cylindrical gears with cylindrical tools. Firstly, a basic mathematical model of tooth profile chamfering using a cylindrical tool is established, including the geometrical model of the chamfered surface and the machine configuration. Subsequently, the rake faces and cutting edges of the cylindrical tools for gear tooth profile chamfering are calculated based on the conjugate principle. Then, the interference during the chamfering process is checked and the chamfered surfaces are generated using the calculated cylindrical tools. In addition, the chamfer structures of the left and right profiles are machined individually, which helps to achieve uniform distributed tooth profile chamfered surfaces. As demonstrated by simulation and experimental verification, the proposed method using cylindrical tools is feasible and meets the requirements of tooth profile chamfering.

齿轮齿形倒角在减轻应力集中和减小啮合冲击方面起着至关重要的作用。然而，倒角磨削和径向倒角是低效的，因为这两种方法的工具都是沿着端面轮廓单独工作的。另外，由于锥形倒角滚刀刀具的轮廓在重新锐化后发生了变化，因此在倒角滚刀方法中会产生再锐化误差。考虑到圆柱刀具通过与待倒角齿轮啮合，实现高速连续切削，并保持截面轮廓不变的特点，提出了用圆柱刀具对渐开线圆柱齿轮进行齿形倒角的方法。首先，建立了圆柱刀具齿形倒角的基本数学模型，包括倒角面几何模型和机床结构；然后，基于共轭原理，计算了齿轮齿形倒角圆柱刀具的前刀面和切削刃。然后，对倒角过程中的干涉进行校核，并利用计算得到的圆柱刀具生成倒角曲面。另外，对左右齿形的倒角结构进行单独加工，使齿形倒角表面分布均匀。仿真和实验验证表明，采用圆柱刀具进行齿形倒角是可行的，满足齿形倒角的要求。

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引用次数: 0

Influence mechanism of tool pin profile on heat transfer and material flow behavior in friction stir welding of aluminum alloys 刀具销型对铝合金搅拌摩擦焊传热和材料流动行为的影响机理

IF 5.4 2区工程技术 Q2 ENGINEERING, MANUFACTURING

CIRP Journal of Manufacturing Science and Technology

Pub Date : 2025-10-10 DOI: 10.1016/j.cirpj.2025.10.001

Fanqi Yu, Shujun Chen, Tao Yuan, He Shan, Pengjing Zhao

The design of the tool pin is a critical factor influencing weld quality and material flow behavior in friction stir welding (FSW). This study employs a Coupled Eulerian-Lagrangian (CEL) thermo-mechanical model to systematically investigate the effects of tool pin taper angle on thermal cycles, plastic strain, and material flow during FSW of Al alloys. The model integrates interfacial friction heating, viscoplastic constitutive behavior, and thermomechanical contact conditions. Experimental validation was conducted through thermocouple-based temperature measurements and macrostructural analysis of weld cross-sections. Results indicate that larger taper angles enhance longitudinal thermal gradients and promote lateral heat dissipation, leading to a wider thermomechanically affected zone (TMAZ). A 0° taper angle induces significant adhesive friction and intense material flow, while a 60° taper reduces flow velocity near the pin tip. With increasing taper angle, plastic strain transitions from a uniform distribution to a concentrated region on the advancing side (AS) of the stir zone (SZ), where peak plasticity occurs. Conversely, deformation near the pin root is suppressed. These insights offer a theoretical basis for optimizing tool geometry to control heat distribution and material flow, improving weld quality in engineering applications.

工具销的设计是影响搅拌摩擦焊焊接质量和材料流动特性的关键因素。本研究采用欧拉-拉格朗日（CEL）耦合热力学模型，系统研究了刀具销锥角对铝合金摩擦摩擦过程中热循环、塑性应变和材料流动的影响。该模型集成了界面摩擦加热，粘塑性本构行为和热机械接触条件。通过基于热电偶的温度测量和焊缝截面的宏观结构分析进行了实验验证。结果表明，较大的锥度角增强了纵向热梯度，促进了侧向散热，导致更宽的热机械影响区（TMAZ）。当锥度为0°时，会产生明显的粘着摩擦和强烈的物质流动，而当锥度为60°时，则会降低针尖附近的流速。随着锥度角的增大，塑性应变由均匀分布向搅拌区（SZ）前进侧（AS）的集中区域转变，塑性峰值出现在搅拌区（SZ）前进侧（AS）。相反，销根附近的变形受到抑制。这些见解为优化工具几何形状以控制热分布和材料流动，提高工程应用中的焊接质量提供了理论基础。

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引用次数: 0

Towards digital twin-enhanced control policies: A knowledge-based classification of release and dispatching policies in manufacturing systems 面向数字孪生增强控制策略：制造系统中放行和调度策略的基于知识的分类

IF 5.4 2区工程技术 Q2 ENGINEERING, MANUFACTURING

CIRP Journal of Manufacturing Science and Technology

Pub Date : 2025-10-10 DOI: 10.1016/j.cirpj.2025.08.006

Marcello Urgo , Walter Terkaj , Lei Liu

The management of modern discrete manufacturing systems is challenged by high levels of complexity arising from intricate interdependencies among processes and the need to adapt to frequent internal and external disruptions. In this context, control policies play a pivotal role in managing manufacturing operations, guiding decisions for governing systems and optimising their performance. This study investigates the design and classification of release and dispatching policies based on the type and structure of information they require, with particular emphasis on supporting real-time and adaptive decision-making. This analysis takes advantage of the concept of Digital Twin (DT), tightly integrated with the physical manufacturing system via IIoT technologies, enabling continuous monitoring of operations in a factory, but also forward-looking simulation of system behaviour. The proposed classification leverages an ontology-based data model that formalises the structure of manufacturing knowledge and facilitates the systematic identification of the information required by control policies. The classification scheme incorporates both the informational requirements and the potential role of the DT in supporting their execution and the results provide a structured perspective on how control strategies can be aligned with available data and digital infrastructure to enhance the management of manufacturing systems.

现代离散制造系统的管理是由过程之间错综复杂的相互依赖关系和需要适应频繁的内部和外部中断而产生的高度复杂性所挑战的。在这种情况下，控制策略在管理制造操作、指导管理系统的决策和优化其性能方面发挥着关键作用。本文研究了基于信息类型和结构的放行和调度策略的设计和分类，特别强调支持实时和自适应决策。该分析利用了数字孪生（DT）的概念，通过工业物联网技术与物理制造系统紧密集成，实现了对工厂运营的持续监控，以及对系统行为的前瞻性模拟。提出的分类利用了基于本体的数据模型，该模型形式化了制造知识的结构，并促进了控制策略所需信息的系统识别。分类方案结合了信息需求和DT在支持其执行方面的潜在作用，结果提供了一个结构化的视角，说明如何将控制策略与可用数据和数字基础设施相结合，以增强制造系统的管理。

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引用次数: 0

Synergistic effects of ultrasonic vibration and nanofluid-MQL on surface integrity in sustainable machining of Ti-6Al-7Nb alloy 超声振动和纳米流体- mql对Ti-6Al-7Nb合金可持续加工表面完整性的协同效应

IF 5.4 2区工程技术 Q2 ENGINEERING, MANUFACTURING

CIRP Journal of Manufacturing Science and Technology

Pub Date : 2025-09-29 DOI: 10.1016/j.cirpj.2025.09.017

Erkin Duman , Yusuf Furkan Yapan , Alper Uysal

Recent trends in the biomedical industry emphasize improving the surface properties of materials for better biocompatibility. Consequently, various surface modification techniques, including machining, are used on titanium bioimplants. This study investigates the impact of sustainable machining on the surface integrity of the Ti-6Al-7Nb biomedical alloy under various cutting conditions including conventional dry cutting, minimum quantity lubrication (MQL), graphene nanofluid-based MQL (N-MQL), and ultrasonic vibration-assisted machining (UVA), encompassing UVA-DRY, UVA-MQL, and UVA-N-MQL. The focus is to analyze the relationship between machining performance and surface integrity. Machining experiments first evaluated cutting forces, cutting temperatures, and chip morphology. Then, surface roughness, texture, microstructural changes, microhardness, and phase transformation were examined to assess surface integrity. The findings reveal that the UVA-N-MQL significantly reduces cutting forces (by up to 6 % for main cutting force and 10.4 % for thrust force) and cutting temperatures (by up to 29 % compared to dry cutting), while enhancing chip breakability. These outcomes stem from the synergistic interaction between the ultrasonic softening effect induced by high-frequency tool oscillations and the enhanced coolant/lubricant penetration enabled by N-MQL lubrication. Additionally, surface roughness was minimized by up to 57 % with UVA-MQL, resulting in the smoothest surface finish. Microstructure analysis also indicated that dry cutting produced the deepest deformation layer (29.5 µm), while UVA-N-MQL achieved the shallowest affected zone (9.5 µm). Subsurface hardness exhibited a notable increase within a depth range of 60–80 µm, with dry cutting demonstrating the most significant work hardening (a 12 % increase), in contrast to UVA-MQL, which experienced the least. Phase transformation analysis revealed a significant increase in the β phase ratio due to machining, with conventional turning exhibiting higher transformation than UVA machining. The UVA-N-MQL method resulted in 10.4 % less phase transformation compared to conventional dry cutting.

生物医学工业的最新趋势强调改善材料的表面特性以获得更好的生物相容性。因此，各种表面改性技术，包括机械加工，被用于钛生物植入物。本研究探讨了不同切削条件下可持续加工对Ti-6Al-7Nb生物医学合金表面完整性的影响，包括传统干切削、最小量润滑（MQL）、石墨烯纳米流体基MQL （N-MQL）和超声波振动辅助加工（UVA），包括UVA- dry、UVA-MQL和UVA-N-MQL。重点分析了加工性能与表面完整性之间的关系。加工实验首先评估切削力、切削温度和切屑形貌。然后，检测表面粗糙度、纹理、显微组织变化、显微硬度和相变以评估表面完整性。研究结果表明，UVA-N-MQL显著降低了切削力（主切削力降低了6% %，推力降低了10.4% %）和切削温度（与干切削相比降低了29% %），同时提高了切屑易碎性。这些结果源于高频工具振荡引起的超声波软化效应与N-MQL润滑增强的冷却剂/润滑剂渗透之间的协同作用。此外，UVA-MQL将表面粗糙度降低了57% %，从而实现了最光滑的表面光洁度。显微组织分析还表明，干切削产生的变形层最深（29.5 µm），而UVA-N-MQL产生的影响区最浅（9.5 µm）。在60-80 µm深度范围内，亚表面硬度显著增加，其中干切削表现出最显著的加工硬化（增加12. %），而UVA-MQL则最少。相变分析表明，加工导致β相比显著增加，常规车削比UVA加工表现出更高的相变。与传统干切削相比，UVA-N-MQL方法的相变减少了10.4% %。

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引用次数: 0

Phenomena and mechanisms in plasma-enhanced jet electrochemical machining 等离子体增强射流电化学加工的现象与机理

IF 5.4 2区工程技术 Q2 ENGINEERING, MANUFACTURING

CIRP Journal of Manufacturing Science and Technology

Pub Date : 2025-09-27 DOI: 10.1016/j.cirpj.2025.09.016

Haowei Zhang, Ningsong Qu

This study presents a novel plasma-enhanced jet electrochemical machining (PE-JEM) method designed to improve the electrochemical machining performance while maintaining process stability. In jet electrochemical machining, the electrolyte jet usually exhibits free flow after increasing the inter-electrode gap, which leads to the natural formation of an air film between the electrode end face and the electrolyte. The high-speed imaging reveals the generation process and locations of plasma generation within the air film, with multiple plasma channels appearing simultaneously at different positions. The current and voltage signals demonstrate the periodic enhancement effect of the plasma, with the anode current density increasing approximately 2.7 times during plasma generation. Notably, the plasma generated in this method does not result in material wear at the tool electrode, ensuring process stability. The jet electrochemical machining experiment confirms significant performance improvements, with a 34.7 % increase in material removal rate and a 48 % increase in groove aspect ratio compared to conventional methods. When the electrode end surface was insulated to suppress plasma generation, the material removal rate and groove aspect ratio declined significantly. These findings highlight plasma-enhanced electrochemical machining as a highly efficient and stable technique for precision manufacturing applications.

提出了一种新型等离子体增强射流电化学加工（PE-JEM）方法，旨在提高电化学加工性能的同时保持工艺稳定性。在射流电化学加工中，增加电极间隙后，电解液射流通常表现为自由流动，导致电极端面与电解液之间自然形成气膜。高速成像揭示了气膜内等离子体产生的过程和位置，多个等离子体通道在不同位置同时出现。电流和电压信号显示出等离子体的周期性增强效应，在等离子体产生过程中阳极电流密度增加了约2.7倍。值得注意的是，在这种方法中产生的等离子体不会导致工具电极上的材料磨损，从而确保了过程的稳定性。射流电化学加工实验证实了显著的性能改善，与常规方法相比，材料去除率提高34.7 %，槽长径比提高48 %。当电极端面被绝缘以抑制等离子体的产生时，材料去除率和沟槽长径比显著下降。这些发现突出了等离子体增强电化学加工作为一种高效和稳定的精密制造应用技术。

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引用次数: 0