Procedia CIRP最新文献_第6页

Definition of value in the framework of systems engineering design methodologies with aeronautics insight 在系统工程设计方法框架下的价值定义

Procedia CIRP Pub Date : 2025-01-01 DOI: 10.1016/j.procir.2025.08.067

Rachele Rizzioli , Claude Cuiller , Francois Bouissiere , Patrice Quenderff , Pierre-Eric Dereux , Claudio Favi

引用次数: 0

AFM-ECM: Electrochemical micro/nano machining on an AFM platform AFM- ecm: AFM平台上的电化学微/纳米加工

Procedia CIRP Pub Date : 2025-01-01 DOI: 10.1016/j.procir.2025.02.279

Krishna Kumar Saxena , Muhammad Hazak Arshad , Dominiek Reynaerts

{"title":"AFM-ECM: Electrochemical micro/nano machining on an AFM platform","authors":"Krishna Kumar Saxena , Muhammad Hazak Arshad , Dominiek Reynaerts","doi":"10.1016/j.procir.2025.02.279","DOIUrl":"10.1016/j.procir.2025.02.279","url":null,"abstract":"<div><div>Fabricating micro and nanostructures on materials that are challenging to cut remains a significant hurdle, with limited fabrication technologies available outside of cleanroom environments. The growing interest in tip-based micro/nano manufacturing presents a promising avenue to address this issue. Techniques like atomic force microscope (AFM) tip-based scratching and nanoindentation are advancing in this field. Electrochemical machining (ECM), with its non-contact nature and atomic-level dissolution, shows potential for downscaling. By controlling and localizing material removal through miniaturized tools and ultrashort voltage pulses, ECM can be downscaled while athermally machining difficult-to-cut materials. This study explores the integration of ECM with an AFM platform, termed as AFM-ECM. Utilizing a specialized AFM tip and short pulsed voltage, this method enables micro/nano-machining. The paper details the hardware specifications of a prototype desktop AFM-ECM setup and the process specifics. Experimental tests validate feasibility of this technology and highlight critical issues in the downscaling of ECM process.</div></div>","PeriodicalId":20535,"journal":{"name":"Procedia CIRP","volume":"137 ","pages":"Pages 288-295"},"PeriodicalIF":0.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144911475","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}

引用次数: 0

Electrochemical machining of groove on tungsten using bipolar pulses and auxiliary electrode 利用双极脉冲和辅助电极对钨槽进行电化学加工

Procedia CIRP Pub Date : 2025-01-01 DOI: 10.1016/j.procir.2025.06.008

Qingrong Zhang , Zehao Huang , Hongping Luo , Wataru Natsu

{"title":"Electrochemical machining of groove on tungsten using bipolar pulses and auxiliary electrode","authors":"Qingrong Zhang , Zehao Huang , Hongping Luo , Wataru Natsu","doi":"10.1016/j.procir.2025.06.008","DOIUrl":"10.1016/j.procir.2025.06.008","url":null,"abstract":"<div><div>Electrochemical machining (ECM) directly controls the dissolution of anodic materials in the fabrication of metallic parts. The electrochemical dissolution behavior of the workpiece material is determined by its electrochemical properties rather than its hardness. Consequently, it is easy to machine difficult-to-cut materials such as tungsten. However, conventional ECM using a unipolar pulse (UP-ECM) and a neutral electrolyte (NaNO<sub>3</sub> aq) is difficult to machine tungsten, because tungsten oxide (WO<sub>3</sub>) with a high impedance is generated in the machining area, which hinders the further dissolution of tungsten. In our previous study, an ECM method using bipolar pulses and an auxiliary electrode (BPAE-ECM) was used to induce intensive hydrogen bubbles, thereby reducing stray corrosion. In this study, this method was used to remove WO<sub>3</sub> and machine grooves on tungsten. During the negative pulse period, the workpiece acts as the cathode and generates hydroxide ions (OH<sup>-</sup>) from hydrogen evolution to dissolve WO<sub>3</sub>, allowing the process to continue. Based on this theory, ECM experiments were conducted to investigate the machining characteristics of tungsten.</div></div>","PeriodicalId":20535,"journal":{"name":"Procedia CIRP","volume":"137 ","pages":"Pages 296-300"},"PeriodicalIF":0.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144911480","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}

引用次数: 0

High-speed observation of multi-channel phenomenon using glass coated with transparent high-resistance film 用涂有透明高阻膜的玻璃高速观察多通道现象

Procedia CIRP Pub Date : 2025-01-01 DOI: 10.1016/j.procir.2025.01.114

Xiaodong Yang , Tao Wei , Fengling Han , Xiaoming Duan , Songlin Ding

{"title":"High-speed observation of multi-channel phenomenon using glass coated with transparent high-resistance film","authors":"Xiaodong Yang , Tao Wei , Fengling Han , Xiaoming Duan , Songlin Ding","doi":"10.1016/j.procir.2025.01.114","DOIUrl":"10.1016/j.procir.2025.01.114","url":null,"abstract":"<div><div>In electrical discharge machining (EDM), high-resistance tool electrode materials result in the occurrence of multiple discharge channels within a single pulse. This phenomenon is utilized to improve machining efficiency or surface roughness. However, the multiple discharge channels occur in a very short time and very narrow space, making it extremely difficult to observe it directly and thus there are many unknowns about its understanding. In this study, high-speed imaging was used to investigate the multi-channel discharge process by using the glass coated with a transparent high-resistance film. As results, the discharge channels were clearly observed due to the transparency of the glass and film, and the phenomenon of multiple discharge channels within a single pulse was detected due to the high resistance of the film. It was found that the smaller the discharge gap, the greater the number of discharge channels and the smaller the channel diameter. It was also observed that during multi-channel discharge, the number of discharge channels may change, and the energy of each channel is not the same.</div></div>","PeriodicalId":20535,"journal":{"name":"Procedia CIRP","volume":"137 ","pages":"Pages 301-305"},"PeriodicalIF":0.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144911481","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}

引用次数: 0

Pulsed Cold Spray System for Physical Unclonable Function Generation 用于物理不可克隆函数生成的脉冲冷喷涂系统

Procedia CIRP Pub Date : 2025-01-01 DOI: 10.1016/j.procir.2025.02.269

Changheon Han , Ted Gabor , Hojun Lee , Jiho Lee , Semih Akin , Martin Byung-Guk Jun

引用次数: 0

Analysis on industrial framework conditions for a holistic system development process 分析了工业框架条件下的整体系统开发过程

Procedia CIRP Pub Date : 2025-01-01 DOI: 10.1016/j.procir.2025.08.034

Veronika Spale, Uwe Kenntner, Christian van Husen

引用次数: 0

Modeling the Residual Stress Evolution in Wire-Arc Directed Energy Deposition with Interlayer Machining Interventions 带有层间加工干预的线弧定向能沉积残余应力演变建模

Procedia CIRP Pub Date : 2025-01-01 DOI: 10.1016/j.procir.2025.02.069

Akshar Kota , Asif Rashid , Shreyes N. Melkote

引用次数: 0

Seamless Edge-Server Collaboration for Real-Time Digital Twin in Machining Process 边缘与服务器无缝协作，在加工过程中实现实时数字孪生

Procedia CIRP Pub Date : 2025-01-01 DOI: 10.1016/j.procir.2025.02.070

Cemile Besirova , Yigit Anil Yucesan , Mehmet Alper Sahin , Ugur Uresin , Ismail Lazoglu

{"title":"Seamless Edge-Server Collaboration for Real-Time Digital Twin in Machining Process","authors":"Cemile Besirova , Yigit Anil Yucesan , Mehmet Alper Sahin , Ugur Uresin , Ismail Lazoglu","doi":"10.1016/j.procir.2025.02.070","DOIUrl":"10.1016/j.procir.2025.02.070","url":null,"abstract":"<div><div>With the rise of smart manufacturing systems aimed at creating efficient and cost-effective environments for mass production, various process data acquisition techniques and data models have been developed for CNC manufacturing to enable the creation of Digital Twin (DT) models. This article proposes an edge-server collaborative data architecture collecting crucial CNC machine data, including servo motor parameters, cutting tool information, and sensor data such as vibration, pressure, and temperature. The architecture is designed to process real-time data during mass production with minimal latency, considering the high-speed nature of machining processes, while also storing historical data in a Data Lake for the development of AI models. An infrastructure for Digital Twin of the brake disc machining process is created, a particularly challenging task due to the complex geometry of the disc and the unique material characteristics of cast iron. During machining, sudden tool failures or even brake disc breakages can occur due to the heterogeneous nature of cast iron. Given that brake discs are critical safety components in automobiles, monitoring process data linked to the cast iron and cutting tool supply chain during mass production is essential. Digital Shadow serves as a foundation for real-time anomaly detection, predictive maintenance, and tool wear prediction models. This paper also proposes several deterministic modeling approaches for real-time anomaly detection, predictive maintenance, and remaining useful life predictions for cutting tools. These models leverage machine data such as spindle and feed-drive motor currents, load, and positional errors during brake disc machining, in combination with sensor data, including temperature, pressure, electrical power, and vibration, to enhance the monitoring and optimization of the machining process.</div></div>","PeriodicalId":20535,"journal":{"name":"Procedia CIRP","volume":"133 ","pages":"Pages 406-411"},"PeriodicalIF":0.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143759208","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}

引用次数: 0

Data-Driven Approach to Identify Acoustic Emission Source Motion and Positioning Effects in Laser Powder Bed Fusion with Frequency Analysis 利用频率分析确定激光粉末床熔合中的声发射源运动和定位效应的数据驱动方法

Procedia CIRP Pub Date : 2025-01-01 DOI: 10.1016/j.procir.2025.02.091

Ming Wu , Shivam Shukla , Bey Vrancken , Mathias Verbeke , Peter Karsmakers

{"title":"Data-Driven Approach to Identify Acoustic Emission Source Motion and Positioning Effects in Laser Powder Bed Fusion with Frequency Analysis","authors":"Ming Wu , Shivam Shukla , Bey Vrancken , Mathias Verbeke , Peter Karsmakers","doi":"10.1016/j.procir.2025.02.091","DOIUrl":"10.1016/j.procir.2025.02.091","url":null,"abstract":"<div><div>Acoustic signal analysis is a common technique for in-process monitoring of laser powder bed fusion (LPBF) to detect defects. However, the propagation of sound waves from the melting pool to sensors can introduce variability in the perceived acoustic signal due to the relative positioning between sensors and the melting pool. This study investigates this phenomenon using a data-driven approach. Sensors, both structural and airborne, not only capture process dynamics but also contextual factors in manufacturing, such as laser movement patterns, baseplate thickness, and printing positions. The frequency data derived from Fourier transforms of the acoustic signals per printing vector were employed as inputs for a 1D-Convolutional Neural Network (CNN) model that can classify these contextual factors. By leveraging Gradient-weighted Class Activation Mapping (Grad-CAM), frequencies crucial for printing positions and acoustic emission source dynamics were identified. The insights obtained from this research aid in developing robust acoustic monitoring systems for LPBF.</div></div>","PeriodicalId":20535,"journal":{"name":"Procedia CIRP","volume":"133 ","pages":"Pages 531-536"},"PeriodicalIF":0.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143759120","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}

引用次数: 0

Experimental and numerical forming of sandwich structures consisting of thermoplastic laminates and soft-elastic foam 热塑性层压板与软弹性泡沫夹层结构的实验与数值成形

Procedia CIRP Pub Date : 2025-01-01 DOI: 10.1016/j.procir.2025.01.039

Philipp Kabala , Ralf Kraft , Elmar Schröder , André Hürkamp , Klaus Dröder

{"title":"Experimental and numerical forming of sandwich structures consisting of thermoplastic laminates and soft-elastic foam","authors":"Philipp Kabala , Ralf Kraft , Elmar Schröder , André Hürkamp , Klaus Dröder","doi":"10.1016/j.procir.2025.01.039","DOIUrl":"10.1016/j.procir.2025.01.039","url":null,"abstract":"<div><div>Sandwich structures have a pivotal role in the development of lightweight structures. In addition to their outstanding mechanical properties compared to monolithic materials, they offer high potential in integrating functions such as acoustic and thermal insulation. Depending on the requirements, the materials for the face sheets and the core can be varied. Typically, the core has high compressive and flexural stiffness, which makes it challenging to produce complex-shaped sandwich structures through a forming process without partially damaging the core. In this context, sandwich structures comprising a soft-elastic foam core and organic sheets as face sheets are of particular interest. The soft-elastic foam core allows for the integration of acoustic and thermal insulating properties while enabling low-damage forming. To this end, the influence of foam thickness and contour as well as the integration of vacuum-assistance in the forming process on the dimensional accuracy are experimentally analysed. Additionally, a model for simulating the forming process is developed and validated based on the dimensional accuracy.</div></div>","PeriodicalId":20535,"journal":{"name":"Procedia CIRP","volume":"131 ","pages":"Pages 86-93"},"PeriodicalIF":0.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143509262","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0