发布求助
文献互助 智能选刊 最新文献

Manufacturing Letters最新文献

筛选
英文 中文
Development of crack-free functionally graded Ti64/TNM-B1 material using laser powder bed fusion 激光粉末床熔合制备无裂纹功能梯度Ti64/TNM-B1材料
IF 1.9
Manufacturing Letters Pub Date : 2025-06-25 DOI: 10.1016/j.mfglet.2025.06.205
Hatem A. Soliman, Mohamed Elbestawi
{"title":"Development of crack-free functionally graded Ti64/TNM-B1 material using laser powder bed fusion","authors":"Hatem A. Soliman,&nbsp;Mohamed Elbestawi","doi":"10.1016/j.mfglet.2025.06.205","DOIUrl":"10.1016/j.mfglet.2025.06.205","url":null,"abstract":"<div><div>The processing of Titanium Aluminides (TiAls) and Ti64 significantly benefits aerospace applications due to their excellent strength-to-weight ratio. Ti64 is commonly used for turbine disks, while TiAl is utilized for low-pressure blades. Laser Powder Bed Fusion (L-PBF) can facilitate the seamless integration of these materials, where reducing connections is essential for weight savings. However, challenges remain, such as variations in thermal expansion coefficients and the potential for crack formation during L-PBF. This study develops a functional graded material from Ti64 to TNM-B1 in 20 % increments, for the first time using L-PBF without cracks, followed by post-processing to enhance the microstructure.</div></div>","PeriodicalId":38186,"journal":{"name":"Manufacturing Letters","volume":"45 ","pages":"Pages 26-30"},"PeriodicalIF":1.9,"publicationDate":"2025-06-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144502312","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 robotic friction stir lap welding of three stack aluminum alloy assembly for automotive applications 汽车用三堆铝合金组件的高速机器人搅拌摩擦搭接
IF 1.9
Manufacturing Letters Pub Date : 2025-06-21 DOI: 10.1016/j.mfglet.2025.06.200
Hrishikesh Das, Shivakant Shukla, Piyush Upadhyay
{"title":"High-speed robotic friction stir lap welding of three stack aluminum alloy assembly for automotive applications","authors":"Hrishikesh Das,&nbsp;Shivakant Shukla,&nbsp;Piyush Upadhyay","doi":"10.1016/j.mfglet.2025.06.200","DOIUrl":"10.1016/j.mfglet.2025.06.200","url":null,"abstract":"<div><div>We present the first experimental demonstration of high-speed (1 m/min) robotic friction stir lap welding for three-sheet (3T) stack-ups of both similar and dissimilar aluminum alloys, including wrought and cast forms. The mechanical performance of the joints under lap shear, T-peel, and U-peel/KSII loading were evaluated. A novel U-peel/KSII configuration, applied for the first time for linear joints demonstrates the role of stitch welds in arresting crack growth. These results establish the feasibility of using robotic FSLW for complex, high-volume automotive structures while maintaining high weld quality at industrially relevant speeds.</div></div>","PeriodicalId":38186,"journal":{"name":"Manufacturing Letters","volume":"45 ","pages":"Pages 36-40"},"PeriodicalIF":1.9,"publicationDate":"2025-06-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144563557","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
Evaluation of repeatability of topographic measurements based on multiscale analysis 基于多尺度分析的地形测量可重复性评价
IF 1.9
Manufacturing Letters Pub Date : 2025-06-21 DOI: 10.1016/j.mfglet.2025.06.202
Damian Gogolewski
{"title":"Evaluation of repeatability of topographic measurements based on multiscale analysis","authors":"Damian Gogolewski","doi":"10.1016/j.mfglet.2025.06.202","DOIUrl":"10.1016/j.mfglet.2025.06.202","url":null,"abstract":"<div><div>This paper describes a new method, based on wavelet transformation, for evaluation repeatability during optical measurements of surface topography. Repeated measurements are made with the same parameters without repositioning the measuring object. The analysis carried out proved differences in the variability of surface irregularities with respect to scale. On the surface it is possible to distinguish a number of morphological features which, during the realization of subsequent measurements, were defined by a different distribution of irregularity height, resulting in highlighting measurement errors. The analysis showed that these changes are particularly visible for scales up to 13 μm, nevertheless for larger scales the differences occur only in selected sections of the profile and not along the entire length, which has a direct correlation with the occurrence of peak or valley. For small scales, slight shifts of certain morphological features in corresponding profiles were noted, as highlighted by the varying orientation of the arrows. The study has the potential for practical use in both the research field and industrial applications, and can contribute to supplementing the current standards.</div></div>","PeriodicalId":38186,"journal":{"name":"Manufacturing Letters","volume":"45 ","pages":"Pages 17-20"},"PeriodicalIF":1.9,"publicationDate":"2025-06-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144502336","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
Shear strength at the interface between polylactic-acid and thermoplastic polyurethane layers processed with multi-material additive manufacturing 多材料增材制造工艺下的聚乳酸和热塑性聚氨酯层界面剪切强度
IF 1.9
Manufacturing Letters Pub Date : 2025-06-21 DOI: 10.1016/j.mfglet.2025.06.201
Rahmat Riza , Muslim Mahardika , Budi Arifvianto
{"title":"Shear strength at the interface between polylactic-acid and thermoplastic polyurethane layers processed with multi-material additive manufacturing","authors":"Rahmat Riza ,&nbsp;Muslim Mahardika ,&nbsp;Budi Arifvianto","doi":"10.1016/j.mfglet.2025.06.201","DOIUrl":"10.1016/j.mfglet.2025.06.201","url":null,"abstract":"<div><div>Multi-material additive manufacturing for joining two dissimilar polymers, such as the rigid polylactic-acid and the flexible thermoplastic polyurethane, has gained attention of researchers. However, the interaction between these two printed materials remains poorly understood. This study evaluated the shear strength at the interface between PLA and TPU materials, joined through fused filament fabrication, using peel-off testing following ASTM 3163-01 standard. The results revealed low shear strength at the interface of these two printed materials, indicating that their bonding mechanism was primarily driven by surface contact. Furthermore, the applied raster angles significantly influenced the measured shear strength of the printed materials.</div></div>","PeriodicalId":38186,"journal":{"name":"Manufacturing Letters","volume":"45 ","pages":"Pages 21-25"},"PeriodicalIF":1.9,"publicationDate":"2025-06-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144502311","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
Rapid tooling: comparative analysis of mechanical properties and energy efficiency in micro-injection mouldings using polymer and metal moulds 快速模具：使用聚合物和金属模具的微注射成型的机械性能和能源效率的比较分析
IF 1.9
Manufacturing Letters Pub Date : 2025-06-21 DOI: 10.1016/j.mfglet.2025.06.204
Mert Gülçür, Adam Rich, Olivia Griffiths, Paul Wilson, Mark Williams, Gregory Gibbons
{"title":"Rapid tooling: comparative analysis of mechanical properties and energy efficiency in micro-injection mouldings using polymer and metal moulds","authors":"Mert Gülçür,&nbsp;Adam Rich,&nbsp;Olivia Griffiths,&nbsp;Paul Wilson,&nbsp;Mark Williams,&nbsp;Gregory Gibbons","doi":"10.1016/j.mfglet.2025.06.204","DOIUrl":"10.1016/j.mfglet.2025.06.204","url":null,"abstract":"<div><div>Rapid tooling enables the fabrication of<!--> <!-->polymer mould inserts, reducing reliance on subtractive manufacturing and mould heating. This study compares rapid polymer and metal tooling in micro-injection moulding, focusing on mechanical properties and energy efficiency. A micro-tensile bar design was used polymer mould and an aluminium counterpart. Both moulds were tested on a μ-IM machine, monitoring energy consumption during cycles. The study<!--> <!-->showed: (i) Polymer tooling achieves tensile properties within 6.4% of metal, (ii) up to 17.6% energy savings per moulding, (iii) rapid tools can replace metal for micro-products, offering energy efficiency, reduced lead times for product iterations.</div></div>","PeriodicalId":38186,"journal":{"name":"Manufacturing Letters","volume":"45 ","pages":"Pages 31-35"},"PeriodicalIF":1.9,"publicationDate":"2025-06-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144502313","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
Transfer learning-enhanced transformer for virtual process sensing in resistance spot welding 基于迁移学习的电阻点焊虚拟过程传感变压器
IF 1.9
Manufacturing Letters Pub Date : 2025-06-15 DOI: 10.1016/j.mfglet.2025.06.199
Ethan York , Xijia Zhao , Hassan Ghessemi-Armaki , Blair Carlson , Peng Wang
{"title":"Transfer learning-enhanced transformer for virtual process sensing in resistance spot welding","authors":"Ethan York ,&nbsp;Xijia Zhao ,&nbsp;Hassan Ghessemi-Armaki ,&nbsp;Blair Carlson ,&nbsp;Peng Wang","doi":"10.1016/j.mfglet.2025.06.199","DOIUrl":"10.1016/j.mfglet.2025.06.199","url":null,"abstract":"<div><div>Resistance Spot Welding (RSW) is a crucial manufacturing process, especially in automotive manufacturing. However, quality assurance in RSW remains a challenge, due to the lack of low-cost, non-invasive process sensing techniques. This paper investigates Transformer for generating virtual electrode force and displacement signals from physically measurable DR signals. Furthermore, to enhance the generalizability, the transformer has been enhanced by transfer learning to adapt to dynamic welding scenarios, by pre-training the transformer model with data from diverse welding conditions and fine-tuning using minimal experimental data from novel conditions. Experimental results validate the effectiveness of virtual sensing technology for RSW process monitoring.</div></div>","PeriodicalId":38186,"journal":{"name":"Manufacturing Letters","volume":"45 ","pages":"Pages 13-16"},"PeriodicalIF":1.9,"publicationDate":"2025-06-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144338296","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
Laser-enabled organic coating for sustainable PFAS-free metal surfaces 激光驱动的有机涂层，用于可持续的无pfas金属表面
IF 1.9
Manufacturing Letters Pub Date : 2025-06-13 DOI: 10.1016/j.mfglet.2025.06.198
Mohammad Mohammadzadeh Sanandaji, Rahat Mollick, Albert Ratner, Hongtao Ding
{"title":"Laser-enabled organic coating for sustainable PFAS-free metal surfaces","authors":"Mohammad Mohammadzadeh Sanandaji,&nbsp;Rahat Mollick,&nbsp;Albert Ratner,&nbsp;Hongtao Ding","doi":"10.1016/j.mfglet.2025.06.198","DOIUrl":"10.1016/j.mfglet.2025.06.198","url":null,"abstract":"<div><div>This study presents a laser-enabled organic coating (LASEO) approach that integrates laser texturing with gel-like carbon dot (G-CD) treatment to develop a PFAS-free alternative for metal surfaces. In this method, nanosecond laser-induced micro/nanostructures enhance coating adhesion, while the G-CD coating provides durable superhydrophilicity and even superwicking behavior. Experimental results show that LASEO-treated surfaces maintain a water contact angle below 10° for over 30 days, outperforming conventional hydrophilic coatings. This scalable technique holds promise for applications in fluid transport and thermal management, offering a sustainable alternative to PFAS-based coatings.</div></div>","PeriodicalId":38186,"journal":{"name":"Manufacturing Letters","volume":"45 ","pages":"Pages 8-12"},"PeriodicalIF":1.9,"publicationDate":"2025-06-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144366061","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
Friction-stir, tailor-welded blanks made from primary and recycled 6082 aluminium alloys 摩擦搅拌，定制焊接坯料由原铝和回收6082铝合金制成
IF 1.9
Manufacturing Letters Pub Date : 2025-06-01 DOI: 10.1016/j.mfglet.2025.05.001
Yugesh Raajha MS , Xiaochao Liu , Jun Ma , Torgeir Welo , Øystein Grong
{"title":"Friction-stir, tailor-welded blanks made from primary and recycled 6082 aluminium alloys","authors":"Yugesh Raajha MS ,&nbsp;Xiaochao Liu ,&nbsp;Jun Ma ,&nbsp;Torgeir Welo ,&nbsp;Øystein Grong","doi":"10.1016/j.mfglet.2025.05.001","DOIUrl":"10.1016/j.mfglet.2025.05.001","url":null,"abstract":"<div><div>The use of aluminum is increasing in electric vehicles (EVs) owing to the high demand for weight reduction. Producing aluminum from recycled scrap requires 95 % less energy than primary metal production, which provides the potential to accelerate the transition to a carbon–neutral economy. In this research, we use Tailor-Welded Recycled Aluminum (TWRA) made of recycled and primary aluminum, aiming to understand the weldability with recycled materials and their potential use as automotive components. AA6082 produced by extrusion from primary and recycled materials, respectively, were welded by conventional Friction Stir Welding (FSW). The welding process was performed both in T4 and T6 temper conditions. Despite the undermatched characteristics relative to the base metal, the primary–recycled joints showed higher joint strength when welded in T4 condition and higher ductility when welded in T6 condition. SEM and EDS analysis revealed precipitate evolution, and intermetallic phases played a strong role in determining the mechanical behavior of these welded joints.</div></div>","PeriodicalId":38186,"journal":{"name":"Manufacturing Letters","volume":"44 ","pages":"Pages 52-56"},"PeriodicalIF":1.9,"publicationDate":"2025-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144204839","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
Influence of convection heat transfer coefficient on the predicted macroscopic temperature field in direct laser deposition of large-scale parts 对流换热系数对激光直接沉积大型零件宏观温度场预测的影响
IF 1.9
Manufacturing Letters Pub Date : 2025-05-28 DOI: 10.1016/j.mfglet.2025.05.002
Sergei Ivanov, Artur Vildanov, Konstantin Babkin, Evgeniy Zemlyakov
{"title":"Influence of convection heat transfer coefficient on the predicted macroscopic temperature field in direct laser deposition of large-scale parts","authors":"Sergei Ivanov,&nbsp;Artur Vildanov,&nbsp;Konstantin Babkin,&nbsp;Evgeniy Zemlyakov","doi":"10.1016/j.mfglet.2025.05.002","DOIUrl":"10.1016/j.mfglet.2025.05.002","url":null,"abstract":"<div><div>In this work the influence of the heat transfer coefficient on the accuracy of the numerical prediction of the macroscopic temperature field in direct laser deposition of large-scale thin-walled structures is investigated in detail. It is shown that a temperature-independent constant heat transfer coefficient results in a considerable discrepancy in the prediction of the interpass temperature and the temperature distribution in the whole buildup. The numerical simulation revealed that the macroscopic temperature field in the buildup exhibits a pronounced sensitivity to the temperature dependence of the heat transfer coefficient. The film coefficient of the bottom surface of the substrate, which contacts the massive turntable of the direct laser deposition machine, has a negligible effect on the interpass temperature and mainly influences the temperature distribution near the substrate.</div></div>","PeriodicalId":38186,"journal":{"name":"Manufacturing Letters","volume":"45 ","pages":"Pages 1-7"},"PeriodicalIF":1.9,"publicationDate":"2025-05-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144212459","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
Advancing cold roll bonding efficiency by preceding XHV-adequate laser deoxidation 通过先前的xhv -充足的激光脱氧，提高冷轧粘合效率
IF 1.9
Manufacturing Letters Pub Date : 2025-05-12 DOI: 10.1016/j.mfglet.2025.03.002
Khemais Barienti , Finn-Lennard Janthur , Henri Heimers , Sarah Seffer , Jörg Hermsdorf , Sebastian Herbst , Ludger Overmeyer , Hans Jürgen Maier , Florian Nürnberger
{"title":"Advancing cold roll bonding efficiency by preceding XHV-adequate laser deoxidation","authors":"Khemais Barienti ,&nbsp;Finn-Lennard Janthur ,&nbsp;Henri Heimers ,&nbsp;Sarah Seffer ,&nbsp;Jörg Hermsdorf ,&nbsp;Sebastian Herbst ,&nbsp;Ludger Overmeyer ,&nbsp;Hans Jürgen Maier ,&nbsp;Florian Nürnberger","doi":"10.1016/j.mfglet.2025.03.002","DOIUrl":"10.1016/j.mfglet.2025.03.002","url":null,"abstract":"<div><div>The influence of a preceding laser ablation surface treatment on cold roll bonding (CRB) efficiency under extreme high vacuum-adequate (XHV-adequate) conditions were examined. Experimental investigations were conducted in a controlled glovebox environment. The impact of varying laser parameters on the critical reduction required for bonding copper and aluminium sheets was analysed. The results demonstrate a significant reduction in critical deformation necessary for bond formation. Surfaces treated by laser ablation achieve bonding at plastic deformations as low as 0.5%. In comparison, brushed surfaces require a plastic strain of 19% in similar XHV-adequate conditions. Using confocal laser scanning microscopy, a correlation between laser parameters and resulting surface characteristics was established, revealing material-specific surface alterations. Scanning electron microscopy analysis of the bonded interfaces further shows enhanced interfacial deformation in laser-treated specimens, which is characterised by increased waviness and pronounced protrusions. The investigations demonstrate a synergistic effect between laser-induced surface modifications and oxide-free conditions in an XHV-adequate atmosphere, which leads to a significant optimisation of CRB efficiency.</div></div>","PeriodicalId":38186,"journal":{"name":"Manufacturing Letters","volume":"44 ","pages":"Pages 42-46"},"PeriodicalIF":1.9,"publicationDate":"2025-05-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144069194","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
下一页 尾页
0
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整，为了账户安全，请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
请完成安全验证×
相关产品
×
本文献相关产品
联系我们：info@booksci.cn Book学术提供免费学术资源搜索服务，方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号：604180095
Book学术官方微信