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International Journal of Electrical Machining最新文献

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Milling of Sintered Carbide using Electrochemical Reaction 利用电化学反应铣削烧结硬质合金
International Journal of Electrical Machining Pub Date : 1900-01-01 DOI: 10.2526/ijem.26.16
A. Goto, Sicong Wang, Atsushi Nakata, Kosuke Shirai, Yusuke Wakikawa, Koki Sakabe, Junda Chen, K. Hayakawa
{"title":"Milling of Sintered Carbide using Electrochemical Reaction","authors":"A. Goto, Sicong Wang, Atsushi Nakata, Kosuke Shirai, Yusuke Wakikawa, Koki Sakabe, Junda Chen, K. Hayakawa","doi":"10.2526/ijem.26.16","DOIUrl":"https://doi.org/10.2526/ijem.26.16","url":null,"abstract":"","PeriodicalId":407646,"journal":{"name":"International Journal of Electrical Machining","volume":"39 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132867787","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: 1
Selectice laser sintering: state-of-the-art 选择性激光烧结:最先进的
International Journal of Electrical Machining Pub Date : 1900-01-01 DOI: 10.2526/ijem.6.7
J. Kruth, T. Laoui
{"title":"Selectice laser sintering: state-of-the-art","authors":"J. Kruth, T. Laoui","doi":"10.2526/ijem.6.7","DOIUrl":"https://doi.org/10.2526/ijem.6.7","url":null,"abstract":"Selective Laser Sintering (SLS) is a rapid prototyping process that allows to progressively produce (build) complex geometrical parts by fusing and solidifying successive layers of fine powder material deposited on top of each other. Fusion is induced by heat delivered by a laser beam that melts or sinters the powder grains together and to the previous solidified layer. The paper describes the state-of-the-art of SLS one decade after its first appearance (First SLS machine sold in 1990). It deals with progresses in terms of SLS machines (hardware, optics, lasers, ... ), SLS processible materials (polymers, metals, ceramics, foundry sand, composites, cermets, ... ) and applications (prototypes, tooling, moulds and dies, functional parts, ... ).","PeriodicalId":407646,"journal":{"name":"International Journal of Electrical Machining","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134057903","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: 7
Experimental investigation on machining characteristics of difficult-to-machine materials with Electrochemical Mechanical Polishing 电化学机械抛光对难加工材料加工特性的实验研究
International Journal of Electrical Machining Pub Date : 1900-01-01 DOI: 10.2526/ijem.23.32
K. Otake, Y. Ishii, W. Natsu
{"title":"Experimental investigation on machining characteristics of difficult-to-machine materials with Electrochemical Mechanical Polishing","authors":"K. Otake, Y. Ishii, W. Natsu","doi":"10.2526/ijem.23.32","DOIUrl":"https://doi.org/10.2526/ijem.23.32","url":null,"abstract":"Difficult-to-machine materials, like titanium alloy, have many advantages such as high hardness and strength. On the other hand, these advantages become obstacle because of the tool wear in the case of mechanical machining, such as cutting and grinding. ECM is effective method for hard materials. However, such as titanium, passivity occurs and machining stops immediately. Electrochemical mechanical polishing (ECMP) is effective for materials that easily become passivated. In this paper, the machining characteristics of difficult-to-machine materials with ECMP are investigated.","PeriodicalId":407646,"journal":{"name":"International Journal of Electrical Machining","volume":"78 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123010468","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
Accuracy Improvements in ECM by Prediction and Control of the Localisation Effects 通过局部效应的预测和控制来提高ECM的精度
International Journal of Electrical Machining Pub Date : 1900-01-01 DOI: 10.2526/ijem.7.25
A. D. Silva, Hermanus S. J. Altena
{"title":"Accuracy Improvements in ECM by Prediction and Control of the Localisation Effects","authors":"A. D. Silva, Hermanus S. J. Altena","doi":"10.2526/ijem.7.25","DOIUrl":"https://doi.org/10.2526/ijem.7.25","url":null,"abstract":"The accuracy and precision of electrochemical machining (ECM) can be improved by using pulsed power and narrow inter-electrode gaps « 50 J.lm). The narrow gaps, however, make the control and prediction of the process much more complex than normal ECM. To this end, an empirical model is developed that can graphically represent the characteristic relationships between process parameters such as dissolution efficiency, current density, electrolyte concentration and pulse duration in narrow electrolytic gaps. This graphical technique facilitates new applications of high precision ECM (dimensional accuracy ± 5 J.lm, surface finish 0.03 J.lm Ra) by predicting and controlling the dissolution and localisation effects.","PeriodicalId":407646,"journal":{"name":"International Journal of Electrical Machining","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127807839","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: 3
Plasma Chemical Vaporization Machining with a Pipe Electrode for Optical Fabrication : a Review 管道电极等离子体化学汽化加工在光学制造中的研究进展
International Journal of Electrical Machining Pub Date : 1900-01-01 DOI: 10.2526/IJEM.17.1
H. Takino
{"title":"Plasma Chemical Vaporization Machining with a Pipe Electrode for Optical Fabrication : a Review","authors":"H. Takino","doi":"10.2526/IJEM.17.1","DOIUrl":"https://doi.org/10.2526/IJEM.17.1","url":null,"abstract":"Plasma chemical vaporization machining (CVM) has been proposed as a high-precision chemical shaping method, which uses rf plasma generated in the proximity of an electrode in an atmospheric environment. Based on the principle of plasma CVM, a computer numerically controlled plasma CVM device with a pipe electrode was proposed for optical fabrication. This paper reviews the plasma CVM device, its removal characteristics, and the fabrication results of glass optics by use of the device","PeriodicalId":407646,"journal":{"name":"International Journal of Electrical Machining","volume":"428 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116887781","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: 1
Electrical Discharge Grinding of Microstructures 微结构的放电磨削
International Journal of Electrical Machining Pub Date : 1900-01-01 DOI: 10.2526/ijem.6.41
E. Uhlmann, U. Doll, S. Piltz
{"title":"Electrical Discharge Grinding of Microstructures","authors":"E. Uhlmann, U. Doll, S. Piltz","doi":"10.2526/ijem.6.41","DOIUrl":"https://doi.org/10.2526/ijem.6.41","url":null,"abstract":"The paper shows the potentials of micro electrical discharge grinding (Il-EDG) for the production of microstructured tools for forming techniques. EDG is a process variant using a rotating disk electrode where the EDM process is superimposed by kinematics close to those of peripheral shape grinding. This way it is possible to manufacture long channels on large surfaces without using form electrodes. Beginning with the analytic description of characteristics and active mechanisms of Il-EDG, the influence of major parameters on process behavior is to be investigated. The objective of the experimental investigations is the determination of fundamentals for the development of compensation techniques to minimize process-caused tool wear effects on geometrical accuracy. Furthermore the influence of process technology on working results regarding obtainable surface quality and removal rate will be examined.","PeriodicalId":407646,"journal":{"name":"International Journal of Electrical Machining","volume":"31 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116955297","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: 6
Laser-Assisted Wet Etching of Silicon Back Surfaces Using 1552 nm Femtosecond Laser 用1552 nm飞秒激光辅助湿法蚀刻硅背表面
International Journal of Electrical Machining Pub Date : 1900-01-01 DOI: 10.2526/ijem.25.7
Khanh Phu Luong, Rie Tanabe-Yamagishi, N. Yamada, Yoshiro Ito
{"title":"Laser-Assisted Wet Etching of Silicon Back Surfaces Using 1552 nm Femtosecond Laser","authors":"Khanh Phu Luong, Rie Tanabe-Yamagishi, N. Yamada, Yoshiro Ito","doi":"10.2526/ijem.25.7","DOIUrl":"https://doi.org/10.2526/ijem.25.7","url":null,"abstract":"Efficient three-dimensional (3D) microfabrication techniques of an Si are in high demand for producing micrometer-scale 3D structures. Here, we report a new method for processing Si back surfaces using a 1552.5 nm femtosecond laser. As the Si is optically transparent at this wavelength, we attempted to machine the Si back surfaces via a nonlinear absorption process using the laser. Given that the etch rate of the back surface would be higher, wet etching was performed using an aqueous KOH solution. The 40% KOH solution was maintained in contact with the Si back surface at 25 (cid:113) C while the laser was irradiated from the front surface. The laser beam was focused on the back surface and linearly scanned under different conditions. Focusing the laser approximately 15 μ m into the liquid yielded deeper grooves as compared to those when it was focused precisely on the Si back surface. Further, the etch rate was significantly higher compared to that during dry etching. We could achieve the maximum etch depth of approximately 6 μ m during the wet etching process, in contrast to 0.3 μ m during dry etching. However, the groove depth was not constant along the processing path. The results demonstrate a possibility of a new, efficient, and debris-free microfabrication technique.","PeriodicalId":407646,"journal":{"name":"International Journal of Electrical Machining","volume":"38 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115564573","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: 3
Optimization of the Wire Electro Discharge Machining Process of Boron Carbide 碳化硼线材电火花加工工艺的优化
International Journal of Electrical Machining Pub Date : 1900-01-01 DOI: 10.2526/ijem.7.15
I. Cabanes, J. A. Sánchez, X. Maidagan, D. López, A. Lamikiz
{"title":"Optimization of the Wire Electro Discharge Machining Process of Boron Carbide","authors":"I. Cabanes, J. A. Sánchez, X. Maidagan, D. López, A. Lamikiz","doi":"10.2526/ijem.7.15","DOIUrl":"https://doi.org/10.2526/ijem.7.15","url":null,"abstract":"Final machining of ceramic components accounts in many cases for an important percentage of the final cost of the part. While diamond grinding is usually the most common solution, it shows important drawbacks related to the impossibility of generating complex shapes. Although diamond grinding will never be completely substituted, non-conventional machining methods can provide a feasible alternative. Amongst these methods, Electro Discharge Machining (EDM) is especially suited when the material shows an electrical conductivity over 0.01 S/cm. Many experiences on the EDM of conductive ceramics can be found in the literature, some of them dealing with the use of special-purpose generators. In this paper, a simple and low cost solution for the modification of the wave shape in an industrial WED M machine in order to optimise the machining of boron carbide is introduced. The results show improvements of up to 5 times the cutting speed achieved previously to the implementation of the modifications.","PeriodicalId":407646,"journal":{"name":"International Journal of Electrical Machining","volume":"34 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127399102","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: 1
Electrical Discharge Machining by Using MAX Phase Ceramic Tool Electrodes MAX相陶瓷刀具电极的放电加工
International Journal of Electrical Machining Pub Date : 1900-01-01 DOI: 10.2526/ijem.25.21
Hiroyuki Saito, Tomoki Kuribayashi, K. Kaneko, N. Yamaguchi, H. Kawasaki, M. Nanko
{"title":"Electrical Discharge Machining by Using MAX Phase Ceramic Tool Electrodes","authors":"Hiroyuki Saito, Tomoki Kuribayashi, K. Kaneko, N. Yamaguchi, H. Kawasaki, M. Nanko","doi":"10.2526/ijem.25.21","DOIUrl":"https://doi.org/10.2526/ijem.25.21","url":null,"abstract":"Given that copper has low hardness, the machined surface is easily peeled, and the chips are easily welded to the cutting tool. However, to obtain the tool electrode shape during machining, a specially coated cutting tool and a special milling machine are required in consideration of the machinability and the machined graphite chip. In this study, the machining characteristics of MAX phase ceramics are considered for their advantages in a new tool electrode material. Ti3SiC2 is a type of MAX phase ceramics that has excellent hardness, heat resistant, and abrasion resistant characteristics associated with ceramics. Further, it has the metallic characteristics in terms of electrical and heat conductivity. The tool electrode wear ratio and removal rate of both copper and TI3SIC2 electrodes were compared. In this study, the effects of electrical conditions on machining and the electrode polarity on tool electrode wear ratio and removal rate were also investigated.","PeriodicalId":407646,"journal":{"name":"International Journal of Electrical Machining","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126865986","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
Analysis of ECM Phenomena with Equivalent Circuit for Electrolysis 电解等效电路的ECM现象分析
International Journal of Electrical Machining Pub Date : 1900-01-01 DOI: 10.2526/ijem.15.45
W. Natsu, T. Kunimi
{"title":"Analysis of ECM Phenomena with Equivalent Circuit for Electrolysis","authors":"W. Natsu, T. Kunimi","doi":"10.2526/ijem.15.45","DOIUrl":"https://doi.org/10.2526/ijem.15.45","url":null,"abstract":"We investigated the interaction between the tool-electroge and workpiece in electrochemical machining (ECM) by establishing an equivalent circuit model for electrolysis. A Zener diode was introduced for the first time to account for the fact that Faradaic current only starts to flow after the potential across the double layer at the solid and liquid interface exceeds the threshold of the electrolytic reaction. After determining the circuit parameters by comparing experimental and analytical results, we examined the ECM characteristics, the Faradaic current as well as the influence of the pulse-off time on the machining accuracy and removal rate. It was found that our model incorporating the Zener diode accurately describes the ECM process. From the simulation, the pulse-off time was found to have a significant impact on machining accuracy.","PeriodicalId":407646,"journal":{"name":"International Journal of Electrical Machining","volume":"35 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127005736","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: 8
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