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International Journal of Nanomanufacturing最新文献

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Modelling and optimisation of cutting parameters on surface roughness in micro-milling Inconel 718 using response surface methodology and genetic algorithm 响应面法和遗传算法在铬镍铁合金718微铣削加工中切削参数对表面粗糙度的建模和优化
International Journal of Nanomanufacturing Pub Date : 2018-01-11 DOI: 10.1504/IJNM.2018.10009992
Xiaohong Lu, Furui Wang, Xinxin Wang, Li-kun Si
{"title":"Modelling and optimisation of cutting parameters on surface roughness in micro-milling Inconel 718 using response surface methodology and genetic algorithm","authors":"Xiaohong Lu, Furui Wang, Xinxin Wang, Li-kun Si","doi":"10.1504/IJNM.2018.10009992","DOIUrl":"https://doi.org/10.1504/IJNM.2018.10009992","url":null,"abstract":"In recent years, micro-milling techniques have attracted great attention and interest from academia and industry. Inconel 718 is a nickel-based superalloy with good tensile, fatigue, creep and rupture strength and can find great application in nuclear and aerospace industry. In this paper, the response surface methodology (RSM) was applied to develop the model for predicting surface roughness in micro-milling Inconel 718. The magnitudes of cutting parameters affecting the surface roughness, which were depth of cut, spindle speed, and feed rate, were analysed by the analysis of variance (ANOVA). The validity of the surface roughness prediction model was proved due to the tiny error between the measured values and the prediction results. Then, genetic algorithm (GA) was used to determine the optimal cutting parameters achieving minimum surface roughness in micro-milling Inconel 718 process. All experiments show that the optimised results agree well with the test ones.","PeriodicalId":14170,"journal":{"name":"International Journal of Nanomanufacturing","volume":"14 1","pages":"34"},"PeriodicalIF":0.0,"publicationDate":"2018-01-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46317619","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: 11
Ultra-precision cutting of linear micro-groove array for distributed feedback laser devices 分布反馈激光器件线性微槽阵列的超精密切割
International Journal of Nanomanufacturing Pub Date : 2018-01-11 DOI: 10.1504/IJNM.2018.10009990
B. Guo, Xin Yu, Zhaoqi Zeng, Qingliang Zhao, Lei Xu, Li Xiaoliang
{"title":"Ultra-precision cutting of linear micro-groove array for distributed feedback laser devices","authors":"B. Guo, Xin Yu, Zhaoqi Zeng, Qingliang Zhao, Lei Xu, Li Xiaoliang","doi":"10.1504/IJNM.2018.10009990","DOIUrl":"https://doi.org/10.1504/IJNM.2018.10009990","url":null,"abstract":"The tunable range and beam linewidth of distributed feedback laser were determined by fabrication quality of the periodic linear micro-groove array on substrate, which grooves are high sloped and ranged sub-micron to few microns. Compared with the common micro-groove arrays (size from tens of microns to sub-millimetre), the ultra-precision cutting of these tiny and high-sloped linear micro-groove arrays are more difficult to realise. In this paper, a series of investigations was proposed for ultra-precision cutting of linear micro-groove array on polymethyl methacrylate (PMMA). Firstly, the different cutting processes included planing and fly-cutting were conducted. The workpiece morphology, surface quality and machining efficiency of these processes were investigated. Then, the fly cutting process was optimised by the calculation of non-free chip zone and the analysis of chip interference by cutting experiments. Finally, a novel tool positioning method based on acoustic emission was presented in order to realise high accuracy control of micro-groove arrays dimensions.","PeriodicalId":14170,"journal":{"name":"International Journal of Nanomanufacturing","volume":"14 1","pages":"9"},"PeriodicalIF":0.0,"publicationDate":"2018-01-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48244530","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: 2
Water dissolution ultra-precision polishing of KDP crystal and its precision cleaning KDP晶体的水溶超精密抛光及其精密清洗
International Journal of Nanomanufacturing Pub Date : 2018-01-11 DOI: 10.1504/IJNM.2018.10009991
Yuchuan Chen, Gao Hang, X. Wang, Xiaoji Teng
{"title":"Water dissolution ultra-precision polishing of KDP crystal and its precision cleaning","authors":"Yuchuan Chen, Gao Hang, X. Wang, Xiaoji Teng","doi":"10.1504/IJNM.2018.10009991","DOIUrl":"https://doi.org/10.1504/IJNM.2018.10009991","url":null,"abstract":"KDP crystal is a kind of excellent electro-optic material used in many laser facilities, which is also widely acknowledged to be extremely hard to machine. In this work, we developed a process to finish KDP crystal to a precision and clean engineering specimen. A micro-nano water dissolution principle and its planarisation mechanism in the machining process are illustrated, which turns the disadvantaged deliquescence property of KDP crystal into the driving force for ultra-precision polishing of the crystal. Micro emulsion fluid with nano water nuclei can precisely control the material removal and realize the selective polishing, thus forming a super smooth and precise surface. Then a subsequent cleaning process developed specially for this ultra-precision polishing method helps to get rid of the polishing fluid, and finally reduces the residue off the crystal to a clean and tidy surface with 1.964 nm rms roughness for engineering application.","PeriodicalId":14170,"journal":{"name":"International Journal of Nanomanufacturing","volume":"14 1","pages":"23"},"PeriodicalIF":0.0,"publicationDate":"2018-01-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42228859","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
Study of materials effects on the single cutting in ultra-precision raster milling 超精密光栅铣削中材料对单次切削的影响研究
International Journal of Nanomanufacturing Pub Date : 2018-01-11 DOI: 10.1504/IJNM.2018.089181
Wang Sujuan, To Suet, Chen Xin
{"title":"Study of materials effects on the single cutting in ultra-precision raster milling","authors":"Wang Sujuan, To Suet, Chen Xin","doi":"10.1504/IJNM.2018.089181","DOIUrl":"https://doi.org/10.1504/IJNM.2018.089181","url":null,"abstract":"Ultra-precision raster milling (UPRM) rotates a single crystal diamond tool to discontinuously remove materials from the workpiece and can directly produce freeform surfaces with sub-micrometric form accuracy and nanometric surface finishing. This paper presents theoretical and experimental investigations on the workpiece material effect on single cutting profile in UPRM. Experiments are conducted to study the material effect on cutting profile by single cutting four materials including copper, aluminium alloy 6061, brass and aluminium bronze under the same cutting conditions in UPRM. A characterisation method is presented in the paper to study the effect of different workpiece material on the cutting profiles in UPRM. The experimental results show that copper alloy makes the smallest effect on the single cutting profile because of the lowest elastic recovery ratio while the material effect of aluminium bronze is the highest due to the highest elastic recovery ratio and the highest hardness.","PeriodicalId":14170,"journal":{"name":"International Journal of Nanomanufacturing","volume":"14 1","pages":"77"},"PeriodicalIF":0.0,"publicationDate":"2018-01-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1504/IJNM.2018.089181","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49628034","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
Performance of PVDF/TiO2 nano-composite film in the application of energy harvester PVDF/TiO2纳米复合膜在能量采集器中的应用性能
International Journal of Nanomanufacturing Pub Date : 2018-01-11 DOI: 10.1504/IJNM.2018.10009989
Ningli An, Jingjing Ye
{"title":"Performance of PVDF/TiO2 nano-composite film in the application of energy harvester","authors":"Ningli An, Jingjing Ye","doi":"10.1504/IJNM.2018.10009989","DOIUrl":"https://doi.org/10.1504/IJNM.2018.10009989","url":null,"abstract":"The compression mode and shear mode for energy harvesting experimental platform was estabished. The energy collection efficiency of PVDF/TiO2 nano-composite film in the two mode and nonlinear piezoelectric effect were analysed. Experimental results show that the energy collection efficiency of the shear mode was higher than the compressed mode. The Piezoelectric constant and piezoelectric coupling coefficient have nonlinear changes under large stress. In this paper, the experimental data establish a relationship electromechanical coupling coefficients and parameters of composite thin film piezoelectric stress.","PeriodicalId":14170,"journal":{"name":"International Journal of Nanomanufacturing","volume":"14 1","pages":"1"},"PeriodicalIF":0.0,"publicationDate":"2018-01-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46630099","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 study and prediction on impact scratching of single abrasive for K9 glass K9玻璃单磨料冲击划伤的实验研究与预测
International Journal of Nanomanufacturing Pub Date : 2018-01-11 DOI: 10.1504/IJNM.2018.10009999
Chen Li, Fei-hu Zhang, Xiaoshuang Rao, B. Leng
{"title":"Experimental study and prediction on impact scratching of single abrasive for K9 glass","authors":"Chen Li, Fei-hu Zhang, Xiaoshuang Rao, B. Leng","doi":"10.1504/IJNM.2018.10009999","DOIUrl":"https://doi.org/10.1504/IJNM.2018.10009999","url":null,"abstract":"The orthogonal test L16 (43) was designed, and the impact scratching experiment for K9 glass was carried out by using Vickers diamond indenter on the DMG ULTRASONIC 70-5 linear. The three-dimensional morphology of the surface for glass was observed by scanning electron microscope (SEM), which was compared with that in the quasi static state. The strain rate of the grinding process was obtained by choosing the contact zone length as the impact contact length, which was the evaluation Index of impact. The relationships between strain rate and the depth of radial crack, strain rate and the depth of transverse crack, strain rate and normal scratching force were first analysed. The results showed that the depth of radial of crack, the depth of transversal crack and the normal scratching force decreased with the increase of strain rate. The two-layer BP neural network was established, which took the strain rate as input variables. The depth of radial crack, the depth of transversal crack and normal scratching force were predicted and the errors were within 10%, which indicated that the prediction results of BP neural network were reliable.","PeriodicalId":14170,"journal":{"name":"International Journal of Nanomanufacturing","volume":"14 1","pages":"89"},"PeriodicalIF":0.0,"publicationDate":"2018-01-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42253539","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
Study on a non-contact polishing method using motion coupling confined etchant layer technique 运动耦合约束蚀刻层技术的非接触抛光方法研究
International Journal of Nanomanufacturing Pub Date : 2018-01-11 DOI: 10.1504/IJNM.2018.10009993
Y. Cao, Yuchao Jia, Yongda Yan, Han Lianhuan, Xuesen Zhao, Zhenjiang Hu, D. Zhan
{"title":"Study on a non-contact polishing method using motion coupling confined etchant layer technique","authors":"Y. Cao, Yuchao Jia, Yongda Yan, Han Lianhuan, Xuesen Zhao, Zhenjiang Hu, D. Zhan","doi":"10.1504/IJNM.2018.10009993","DOIUrl":"https://doi.org/10.1504/IJNM.2018.10009993","url":null,"abstract":"The confined etchant layer technique (CELT) has been proved not only an effective electrochemical microstructures fabrication method, but also a potential polishing method due to its distance sensitiveness. To verify its polishing capability in motion mode and examine the influence of motion parameters on polishing efficiency and material removal rate, motion coupling confined etchant layer technique (MCCELT) polishing experiments were carried out on n-GaAs wafers by adopting central composite inscribe (CCI) design of response surface methodology. Furthermore, the interactions between motion, electrochemical reaction and substrate deformation were analysed using multi-physics coupling finite element simulations. Statistical model shows that sample surface roughness decreases with the decreases of working distance (between the electrode and the substrate) and feeding velocity, and indicates it still has potential to reach more smooth results.","PeriodicalId":14170,"journal":{"name":"International Journal of Nanomanufacturing","volume":"14 1","pages":"51"},"PeriodicalIF":0.0,"publicationDate":"2018-01-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48387281","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 clearance angle on micro/nano structure fabrication in elliptical vibration cutting of hardened steel 淬硬钢椭圆振动切削中间隙角对微纳结构加工的影响
International Journal of Nanomanufacturing Pub Date : 2017-10-20 DOI: 10.1504/IJNM.2017.10008414
Jianguo Zhang, N. Suzuki, Yilong Wang, E. Shamoto
{"title":"Influence of clearance angle on micro/nano structure fabrication in elliptical vibration cutting of hardened steel","authors":"Jianguo Zhang, N. Suzuki, Yilong Wang, E. Shamoto","doi":"10.1504/IJNM.2017.10008414","DOIUrl":"https://doi.org/10.1504/IJNM.2017.10008414","url":null,"abstract":"Surfaces textured by sophisticated micro/nano structures can provide advanced and useful functions and features as compared with simply smooth surfaces. To promote widespread use of the structured surfaces, manufacturing technology of structured surfaces for ultra-precision dies and moulds made of hardened steel is absolutely essential. Conventional diamond cutting is not applicable to machining of steel due to rapid tool wear and surface deterioration. On the other hand, elliptical vibration cutting (EVC) equipped with the ultra-precision amplitude control sculpturing method is considered as a potential candidate for the functional surface fabrication on steel materials. In this method, tool geometry, especially the clearance angle, imposes a limit on the machinable part geometry due to the flank face contact to the target shape in the downhill machining. In order to clarify the influence of flank face contact on the machining accuracy and the tool wear, a series of theoretical and experimental investigations are conducted in this paper. A surface with micro sine-sweep profile is fabricated on hardened steel by applying the proposed amplitude control sculpturing method. It verified that the interference between flank face and fabricated structure causes not only the serious machining accuracy deterioration but also the serious tool damage due to the enhancing of ploughing process.","PeriodicalId":14170,"journal":{"name":"International Journal of Nanomanufacturing","volume":"13 1","pages":"351"},"PeriodicalIF":0.0,"publicationDate":"2017-10-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42749943","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
Comprehensive error modelling and error compensation for complex optical free-form surface polishing platform 复杂光学自由曲面抛光平台综合误差建模与误差补偿
International Journal of Nanomanufacturing Pub Date : 2017-10-20 DOI: 10.1504/IJNM.2017.10008421
Zhang Zhong, Zhao Ji, Ji Shi Jun, Li Gang
{"title":"Comprehensive error modelling and error compensation for complex optical free-form surface polishing platform","authors":"Zhang Zhong, Zhao Ji, Ji Shi Jun, Li Gang","doi":"10.1504/IJNM.2017.10008421","DOIUrl":"https://doi.org/10.1504/IJNM.2017.10008421","url":null,"abstract":"Four-axis polishing platform plays an important role in machining a complex optical free-form surface and the kinematic error generally determine the accuracy of the optical free-form surface fabricated by this platform. This paper analyses kinematics of the polishing platform based on the homogeneous coordinate transformation theory and the error of kinematics synthesis model is established. Based on minimum error assumption, transition matrix is obtained from machine tool coordinate system to the cutting tool coordinate system and changing rule of comprehensive error in different position and direction is gained in two-axis motion worktable. Laser interferometer is used to measure the geometric error of polishing platform, it is found that different feed rate and measured spacing had no significant effect on the positioning error of moving axis and positioning error rather than the straightness and angle error has more significant influence on the accuracy of machine tool. Compensation experiment was conducted based on integrated error model, the x-axis and z-axis positioning error was reduced by 87.37% and 90.32% after compensation and the compensation result is remarkable.","PeriodicalId":14170,"journal":{"name":"International Journal of Nanomanufacturing","volume":"13 1","pages":"371"},"PeriodicalIF":0.0,"publicationDate":"2017-10-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44861454","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
Study on algorithm of automatic alignment compensation of electron gun in a scanning electron microscope 扫描电子显微镜电子枪自动对准补偿算法研究
International Journal of Nanomanufacturing Pub Date : 2017-10-20 DOI: 10.1504/IJNM.2017.10008419
Seung Jae Kim, D. Jang
{"title":"Study on algorithm of automatic alignment compensation of electron gun in a scanning electron microscope","authors":"Seung Jae Kim, D. Jang","doi":"10.1504/IJNM.2017.10008419","DOIUrl":"https://doi.org/10.1504/IJNM.2017.10008419","url":null,"abstract":"Primary electrons are emitted from the cathode in a scanning electron microscope (SEM). The electron gun's cathode diameter is ~60 µm and the anode's internal diameter is ~3 mm. When the cathode and anode centres do not match, the SEM image is distorted. We developed an automatic alignment method for the electron gun. The primary electrons are scanned under the anode hole for secondary electron image acquisition. However, when the primary electrons are scanned from the upper anode hole, secondary electrons on the specimen as big as the size of the anode hole are generated. The alignment of the cathode and anode centres is determined from the image's brightness and position on the screen; if the image is very bright, the alignment is normal. We employ pattern recognition to analyse images to achieve automatic alignment of the electron gun. We designed a scanning device and performed image scale calibration.","PeriodicalId":14170,"journal":{"name":"International Journal of Nanomanufacturing","volume":"13 1","pages":"362"},"PeriodicalIF":0.0,"publicationDate":"2017-10-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44190441","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
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