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Reliable determination of interfacial heat transfer coefficients for hot sheet metal forming 可靠测定热金属板成型的界面传热系数
IF 3.2 3区 工程技术
Cirp Annals-Manufacturing Technology Pub Date : 2024-01-01 DOI: 10.1016/j.cirp.2024.03.007
L. Schell, E. Sellner, B. Heller, T. Wenzel, P. Groche (1)
{"title":"Reliable determination of interfacial heat transfer coefficients for hot sheet metal forming","authors":"L. Schell,&nbsp;E. Sellner,&nbsp;B. Heller,&nbsp;T. Wenzel,&nbsp;P. Groche (1)","doi":"10.1016/j.cirp.2024.03.007","DOIUrl":"10.1016/j.cirp.2024.03.007","url":null,"abstract":"<div><p>Non-isothermal hot forming processes are of great scientific and industrial interest to produce e.g. high-strength aluminum components for lightweight applications. The interfacial heat transfer coefficient (IHTC) is a key factor in the design of these forming processes. However, the IHTC values reported in the literature vary significantly, even for the same material combinations and load conditions. The present work reveals the causes of these variations by a combined experimental and model-based approach. It is shown that the measurement of dynamically changing blank temperatures and the determination of the die surface temperature are two core aspects of non-isothermal experimental IHTC analysis.</p></div>","PeriodicalId":55256,"journal":{"name":"Cirp Annals-Manufacturing Technology","volume":"73 1","pages":"Pages 237-240"},"PeriodicalIF":3.2,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S0007850624000076/pdfft?md5=2f258360c2aa1b227f14977c1e3fe915&pid=1-s2.0-S0007850624000076-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141959438","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Laser-induced fabrication of doped-graphene based on collagen for bone tissue engineering scaffold applications 激光诱导制备基于胶原蛋白的掺杂石墨烯，用于骨组织工程支架应用
IF 3.2 3区 工程技术
Cirp Annals-Manufacturing Technology Pub Date : 2024-01-01 DOI: 10.1016/j.cirp.2024.04.018
{"title":"Laser-induced fabrication of doped-graphene based on collagen for bone tissue engineering scaffold applications","authors":"","doi":"10.1016/j.cirp.2024.04.018","DOIUrl":"10.1016/j.cirp.2024.04.018","url":null,"abstract":"<div><p>Electro-active scaffolds play an important role in bone tissue engineering applications, serving as physical substrates for cell proliferation and osteogenic differentiation, ultimately realizing new bone regeneration. This paper discusses a novel strategy to synthesize graphene through laser-induced surface doping, using bone collagen as the carbon source, serving as a key functional filler to be combined with biocompatible, biodegradable poly(ε-caprolactone) (PCL), for the fabrication of the next generation electro-active bone tissue engineering scaffolds. Scaffolds are fabricated through material-extrusion additive manufacturing. The developed graphene is proven to present a significant enhancement effect on surface and mechanical properties over the conventional graphene material.</p></div>","PeriodicalId":55256,"journal":{"name":"Cirp Annals-Manufacturing Technology","volume":"73 1","pages":"Pages 165-168"},"PeriodicalIF":3.2,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141139382","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Predictive digital twin-driven dynamic error control for slow-tool-servo ultraprecision diamond turning 用于慢刀伺服超精密金刚石车削的预测性数字孪生驱动动态误差控制
IF 3.2 3区 工程技术
Cirp Annals-Manufacturing Technology Pub Date : 2024-01-01 DOI: 10.1016/j.cirp.2024.04.080
{"title":"Predictive digital twin-driven dynamic error control for slow-tool-servo ultraprecision diamond turning","authors":"","doi":"10.1016/j.cirp.2024.04.080","DOIUrl":"10.1016/j.cirp.2024.04.080","url":null,"abstract":"<div><p>A predictive digital twin (DT)-driven dynamic error control approach is presented for accuracy control in high-frequency slow-tool-servo ultraprecision diamond turning processes. An explainable artificial intelligence-enabled real-time DT of the total dynamic error (inside and outside the servo loop) was established using in-line acceleration input data near the tool. A feedforward controller was used to mitigate the total dynamic errors before they came into effect. The machining trials using this approach showed that significant improvement in machining accuracy (87%, surface form accuracy; 95%, phase accuracy with precisions of 0.06 µm and 0.05°), and efficiency (8 times the state-of-the-art) were successfully achieved.</p></div>","PeriodicalId":55256,"journal":{"name":"Cirp Annals-Manufacturing Technology","volume":"73 1","pages":"Pages 377-380"},"PeriodicalIF":3.2,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S000785062400091X/pdfft?md5=742f2bb3ca3e043bb1e8c7c336b0adec&pid=1-s2.0-S000785062400091X-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141143169","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Non-Circular-Rotary-Turning process for manufacturing parts with non-circular contours 用于制造非圆形轮廓零件的非圆形旋转车削工艺
IF 3.2 3区 工程技术
Cirp Annals-Manufacturing Technology Pub Date : 2024-01-01 DOI: 10.1016/j.cirp.2024.04.054
Tassilo Arndt, Volker Schulze (2)
{"title":"Non-Circular-Rotary-Turning process for manufacturing parts with non-circular contours","authors":"Tassilo Arndt,&nbsp;Volker Schulze (2)","doi":"10.1016/j.cirp.2024.04.054","DOIUrl":"10.1016/j.cirp.2024.04.054","url":null,"abstract":"<div><p>Modern medical implants are characterized by non-circular shapes, which is often challenging for economic production. Non-Circular-Rotary-Turning (NCRT) is a newly developed process for manufacturing non-circular cross-sections at high productivity and a high degree of geometric freedom. In this work, the basic process kinematics of NCRT are presented. A process design method is proposed and validated. The fundamental cutting conditions are examined using simulation and the cutting forces are studied experimentally. In an example of application, NCRT enables to reduce machining time by a factor of more than ten compared to a conventional process chain, resulting even in better surface quality.</p></div>","PeriodicalId":55256,"journal":{"name":"Cirp Annals-Manufacturing Technology","volume":"73 1","pages":"Pages 61-64"},"PeriodicalIF":3.2,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S0007850624000593/pdfft?md5=2a3663bec1b8d871d7cb7384036f78a4&pid=1-s2.0-S0007850624000593-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141959528","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
The impact of airborne emissions from coolants and lubricants on machining costs 冷却剂和润滑剂的空气排放对加工成本的影响
IF 3.2 3区 工程技术
Cirp Annals-Manufacturing Technology Pub Date : 2024-01-01 DOI: 10.1016/j.cirp.2024.04.056
{"title":"The impact of airborne emissions from coolants and lubricants on machining costs","authors":"","doi":"10.1016/j.cirp.2024.04.056","DOIUrl":"10.1016/j.cirp.2024.04.056","url":null,"abstract":"<div><p>A novel aerosol evaluation cell was employed to measure particle number and mass concentration, with a size distribution from nano to micro scale. Different cooling/lubrication and airflow extraction scenarios were tested on a CFRP/Ti6Al4V case study, and the particle concentrations were measured to evaluate their effect on productivity and cost per hole, if current occupational exposure limits are respected. Aspects to achieve sustainable machining like tool life, consumption of coolant and energy, and standby time required to safely open the machine-tool doors were considered. LCO<sub>2</sub> delivered the best productivity and cost results as it improved the tool life by 40 % compared to MQL, while eliminating the need for standby time to evacuate particles.</p></div>","PeriodicalId":55256,"journal":{"name":"Cirp Annals-Manufacturing Technology","volume":"73 1","pages":"Pages 77-80"},"PeriodicalIF":3.2,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S0007850624000659/pdfft?md5=4976d4cce7aa0ada009740a803cc7fe2&pid=1-s2.0-S0007850624000659-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141276300","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Laser powder bed fusion of WC-Co form turning tools with integrated cooling features: Design, printing, and test machining of Ti6Al4V 具有集成冷却功能的 WC-Co 形车刀的激光粉末床熔化：Ti6Al4V 的设计、打印和试加工
IF 3.2 3区 工程技术
Cirp Annals-Manufacturing Technology Pub Date : 2024-01-01 DOI: 10.1016/j.cirp.2024.04.053
{"title":"Laser powder bed fusion of WC-Co form turning tools with integrated cooling features: Design, printing, and test machining of Ti6Al4V","authors":"","doi":"10.1016/j.cirp.2024.04.053","DOIUrl":"10.1016/j.cirp.2024.04.053","url":null,"abstract":"<div><p>Additively manufactured cutting tools have thus far proven unsuccessful in machining difficult-to-cut materials like titanium. To the knowledge of the authors, this paper demonstrates, for the first time, the form turning of Ti6Al4V with WC-Co tools printed using laser powder bed fusion (LPBF), without any material-related post-processing. Following an investigation into LPBF parameters to optimize WC-Co properties, numerical modelling was utilized to design and analyse said tools, which were then printed, finish-ground, and tested. This advance was facilitated by the enabling capabilities of LPBF, which elevated tool performance by incorporating features that are critical to machining titanium, such as cooling fins and streamlined internal coolant channels.</p></div>","PeriodicalId":55256,"journal":{"name":"Cirp Annals-Manufacturing Technology","volume":"73 1","pages":"Pages 65-68"},"PeriodicalIF":3.2,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S000785062400060X/pdfft?md5=057429dc9cab04d8559b57388810085d&pid=1-s2.0-S000785062400060X-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141404553","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Fast ED-milling of high volume fraction Al/SiCp metal matrix composites 快速 ED 铣削高体积分数 Al/SiCp 金属基复合材料
IF 3.2 3区 工程技术
Cirp Annals-Manufacturing Technology Pub Date : 2024-01-01 DOI: 10.1016/j.cirp.2024.03.014
{"title":"Fast ED-milling of high volume fraction Al/SiCp metal matrix composites","authors":"","doi":"10.1016/j.cirp.2024.03.014","DOIUrl":"10.1016/j.cirp.2024.03.014","url":null,"abstract":"<div><p>This work introduces a fast ED-milling approach for machining of complex and precise geometries on high vol.% Al/SiC MMCs. It aims to overcome the issues of severe tool wear and low overall machining efficiency while conducting conventional milling. The material removal mechanism of this specific machining scheme is investigated through discharge phenomena observation and metallurgical analyzation, thereby, discharge current regulation methods for finishing and roughing were developed accordingly to further promote the material removal. Machining tests verify that, as compared to die-sinking EDM, the proposed method guarantees rather higher machining efficiency and satisfactory surface quality in machining of various cavities.</p></div>","PeriodicalId":55256,"journal":{"name":"Cirp Annals-Manufacturing Technology","volume":"73 1","pages":"Pages 121-124"},"PeriodicalIF":3.2,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141027187","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Performance evaluation of multi-stage manufacturing systems operating under feedback and feedforward quality control loops 在反馈和前馈质量控制回路下运行的多级制造系统的性能评估
IF 3.2 3区 工程技术
Cirp Annals-Manufacturing Technology Pub Date : 2024-01-01 DOI: 10.1016/j.cirp.2024.04.015
{"title":"Performance evaluation of multi-stage manufacturing systems operating under feedback and feedforward quality control loops","authors":"","doi":"10.1016/j.cirp.2024.04.015","DOIUrl":"10.1016/j.cirp.2024.04.015","url":null,"abstract":"<div><p>In manufacturing, the essential product characteristics are often created through multiple stages. Coupling product data obtained through inspection and controllers based on decision models with prediction capabilities enables quality control loops, enhancing both feedback and feedforward mechanisms. This paper proposes a methodology to merge the formulation of feedback and feedforward quality control loops into a performance evaluation model for multi-stage manufacturing systems. This approach evaluates quality control loop impacts system-wide, aiding in configuring and reconfiguring quality gates. A case study illustrates how allocating inspection technologies and efficient decision models improves overall system performance through effective feedback and feedforward control loops.</p></div>","PeriodicalId":55256,"journal":{"name":"Cirp Annals-Manufacturing Technology","volume":"73 1","pages":"Pages 349-352"},"PeriodicalIF":3.2,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S0007850624000295/pdfft?md5=2b00c4f732c3c98501ae9e937f2f2500&pid=1-s2.0-S0007850624000295-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141032138","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Investigation of cutting force in gear skiving by measurement and simulation 通过测量和模拟研究齿轮铣削中的切削力
IF 3.2 3区 工程技术
Cirp Annals-Manufacturing Technology Pub Date : 2024-01-01 DOI: 10.1016/j.cirp.2024.04.036
{"title":"Investigation of cutting force in gear skiving by measurement and simulation","authors":"","doi":"10.1016/j.cirp.2024.04.036","DOIUrl":"10.1016/j.cirp.2024.04.036","url":null,"abstract":"<div><p>Cutting force simulations are effective tools to predict the quality of the cutting process and to reduce the process development times. Such simulations must generally be verified by measurements to ensure the required prediction accuracy. Table and tool holder dynamometers are typically used equipment for cutting force measurement by basic cutting processes like milling and turning. However, the use of this equipment by advanced processes like gear skiving is limited. This paper presents an approach for a sensory, spindle-integrated force measurement system for mill-turn machines and its use for the verification of a cutting force simulation in gear skiving.</p></div>","PeriodicalId":55256,"journal":{"name":"Cirp Annals-Manufacturing Technology","volume":"73 1","pages":"Pages 329-332"},"PeriodicalIF":3.2,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141045885","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Artificial Intelligence in manufacturing: State of the art, perspectives, and future directions 制造业中的人工智能：技术现状、前景和未来方向
IF 3.2 3区 工程技术
Cirp Annals-Manufacturing Technology Pub Date : 2024-01-01 DOI: 10.1016/j.cirp.2024.04.101
Robert X. Gao (1) , Jörg Krüger (1) , Marion Merklein (1) , Hans-Christian Möhring (2) , József Váncza (1)
{"title":"Artificial Intelligence in manufacturing: State of the art, perspectives, and future directions","authors":"Robert X. Gao (1) ,&nbsp;Jörg Krüger (1) ,&nbsp;Marion Merklein (1) ,&nbsp;Hans-Christian Möhring (2) ,&nbsp;József Váncza (1)","doi":"10.1016/j.cirp.2024.04.101","DOIUrl":"10.1016/j.cirp.2024.04.101","url":null,"abstract":"<div><p>Inspired by the natural intelligence of humans and bio-evolution, Artificial Intelligence (AI) has seen accelerated growth since the beginning of the 21st century. Successful AI applications have been broadly reported, with Industry 4.0 providing a thematic platform for AI-related research and development in manufacturing. This paper highlights applications of AI in manufacturing, ranging from production system design and planning to process modeling, optimization, quality assurance, maintenance, automated assembly and disassembly. In addition, the paper presents an overview of representative manufacturing problems and matching AI solutions, and a perspective of future research to leverage AI towards the realization of smart manufacturing.</p></div>","PeriodicalId":55256,"journal":{"name":"Cirp Annals-Manufacturing Technology","volume":"73 2","pages":"Pages 723-749"},"PeriodicalIF":3.2,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S000785062400115X/pdfft?md5=5e60d069391c5387622b4831d6e72a1a&pid=1-s2.0-S000785062400115X-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141851208","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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