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Journal of Laser Micro Nanoengineering最新文献

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Dimensionless Enthalpy as Characteristic Factor for Process Control in Laser Powder Bed Fusion 无量纲焓作为激光粉末床熔合过程控制的特征因子
IF 1.1 4区 材料科学
Journal of Laser Micro Nanoengineering Pub Date : 2020-01-01 DOI: 10.2961/jlmn.2020.03.2017
T. Hanemann, C. Seyfert, P. Holfelder, A. Rota, M. Heilmaier
{"title":"Dimensionless Enthalpy as Characteristic Factor for Process Control in Laser Powder Bed Fusion","authors":"T. Hanemann, C. Seyfert, P. Holfelder, A. Rota, M. Heilmaier","doi":"10.2961/jlmn.2020.03.2017","DOIUrl":"https://doi.org/10.2961/jlmn.2020.03.2017","url":null,"abstract":"","PeriodicalId":54788,"journal":{"name":"Journal of Laser Micro Nanoengineering","volume":"88 1","pages":"257"},"PeriodicalIF":1.1,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72649075","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 4
Texturization of Engine Components with Shaped Ultrashort Laser Pulses 用成形超短激光脉冲对发动机部件进行织构化
IF 1.1 4区 材料科学
Journal of Laser Micro Nanoengineering Pub Date : 2019-12-20 DOI: 10.2961/jlmn.2019.02.0005
W. Rossi, A. Vieira
{"title":"Texturization of Engine Components with Shaped Ultrashort Laser Pulses","authors":"W. Rossi, A. Vieira","doi":"10.2961/jlmn.2019.02.0005","DOIUrl":"https://doi.org/10.2961/jlmn.2019.02.0005","url":null,"abstract":"The aim of this work was to texturize surfaces of steel engine components to reduce the coefficient of dynamic friction and wear between two surfaces. The elements of the texture had the shape of a spherical half-shell and were produced by the overlap of femtosecond laser pulses with donut shape. The incubation effect was estimated using the D-scan method to relate the ablation threshold to the number of overlapping pulses. Thus, the control of the focal position of the laser beam and the number of overlapped pulses, taking into account the effects of incubation, made it possible to obtain this type of dimple with controlled shape and size. A distribution of dimples with density of 11% caused an 18% reduction in the coefficient of friction in a tribological pair DIN 16MnCr5 and SAE 52100 steel sphere.","PeriodicalId":54788,"journal":{"name":"Journal of Laser Micro Nanoengineering","volume":" ","pages":""},"PeriodicalIF":1.1,"publicationDate":"2019-12-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45421548","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Fabrication of Nickel-Gold Microsensor Using In Situ Laser-Induced Metal Deposition Technique 原位激光诱导金属沉积技术制备镍金微传感器
IF 1.1 4区 材料科学
Journal of Laser Micro Nanoengineering Pub Date : 2019-12-01 DOI: 10.2961/jlmn.2019.03.0011
M. Panov, Ilia Aliabev, E. Khairullina, V. Mironov, I. Tumkin
{"title":"Fabrication of Nickel-Gold Microsensor Using In Situ Laser-Induced Metal Deposition Technique","authors":"M. Panov, Ilia Aliabev, E. Khairullina, V. Mironov, I. Tumkin","doi":"10.2961/jlmn.2019.03.0011","DOIUrl":"https://doi.org/10.2961/jlmn.2019.03.0011","url":null,"abstract":"","PeriodicalId":54788,"journal":{"name":"Journal of Laser Micro Nanoengineering","volume":"40 1","pages":""},"PeriodicalIF":1.1,"publicationDate":"2019-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84542594","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 6
Hybrid Micro Textures – A Multi-Scale Surface Engineering Approach For Enhancing Tribological Characteristics 混合微织构——提高摩擦学特性的多尺度表面工程方法
IF 1.1 4区 材料科学
Journal of Laser Micro Nanoengineering Pub Date : 2019-12-01 DOI: 10.2961/jlmn.2019.03.0006
{"title":"Hybrid Micro Textures – A Multi-Scale Surface Engineering Approach For Enhancing Tribological Characteristics","authors":"","doi":"10.2961/jlmn.2019.03.0006","DOIUrl":"https://doi.org/10.2961/jlmn.2019.03.0006","url":null,"abstract":"","PeriodicalId":54788,"journal":{"name":"Journal of Laser Micro Nanoengineering","volume":" ","pages":""},"PeriodicalIF":1.1,"publicationDate":"2019-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44560849","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 7
Studies on Microdrilling of NbN Superconductor using Pulsed Laser Ablation 脉冲激光烧蚀NbN超导体微孔的研究
IF 1.1 4区 材料科学
Journal of Laser Micro Nanoengineering Pub Date : 2019-12-01 DOI: 10.2961/jlmn.2019.03.0004
{"title":"Studies on Microdrilling of NbN Superconductor using Pulsed Laser Ablation","authors":"","doi":"10.2961/jlmn.2019.03.0004","DOIUrl":"https://doi.org/10.2961/jlmn.2019.03.0004","url":null,"abstract":"","PeriodicalId":54788,"journal":{"name":"Journal of Laser Micro Nanoengineering","volume":" ","pages":""},"PeriodicalIF":1.1,"publicationDate":"2019-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46874547","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Picosecond Laser Fabrication of the Riblet-Array Surface Texture on Ti64 Alloy Substrate 皮秒激光制备Ti64合金基板上的条纹阵列表面织构
IF 1.1 4区 材料科学
Journal of Laser Micro Nanoengineering Pub Date : 2019-12-01 DOI: 10.2961/jlmn.2019.03.0003
{"title":"Picosecond Laser Fabrication of the Riblet-Array Surface Texture on Ti64 Alloy Substrate","authors":"","doi":"10.2961/jlmn.2019.03.0003","DOIUrl":"https://doi.org/10.2961/jlmn.2019.03.0003","url":null,"abstract":"","PeriodicalId":54788,"journal":{"name":"Journal of Laser Micro Nanoengineering","volume":" ","pages":""},"PeriodicalIF":1.1,"publicationDate":"2019-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47318654","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
Laser-induced Ejection of a Millimeter-sized Liquid Droplet from a Metal Surface by IR Laser Irradiation at Three Different Pulse Durations 三种不同脉冲持续时间的红外激光诱导金属表面毫米级液滴喷射
IF 1.1 4区 材料科学
Journal of Laser Micro Nanoengineering Pub Date : 2019-12-01 DOI: 10.2961/jlmn.2019.03.0010
H. Niino, T. Sakai, Shinji Ookuma, Naoto Okada, Y. Kato, T. Kurita, T. Kawashima
{"title":"Laser-induced Ejection of a Millimeter-sized Liquid Droplet from a Metal Surface by IR Laser Irradiation at Three Different Pulse Durations","authors":"H. Niino, T. Sakai, Shinji Ookuma, Naoto Okada, Y. Kato, T. Kurita, T. Kawashima","doi":"10.2961/jlmn.2019.03.0010","DOIUrl":"https://doi.org/10.2961/jlmn.2019.03.0010","url":null,"abstract":"Laser-induced cleaning by the elimination of liquid contaminant droplets from the surface of a solid substrate is an attractive application of laser technology. We report the laser-induced ejection of an organic carbonate liquid droplet from an aluminum surface using three different infrared (IR) laser pulse durations (5.7 ns, 35 ns, and 90 μs). Single-shot cleaning of a large area sample through a noncontact process was achieved by irradiation with a nanosecond-pulsed laser. The dynamic behavior of liquid desorption was observed with a high-speed CCD camera. The threshold laser fluences for liquid desorption by laser irradiations were determined for each of the lasers. The laser pulse duration increased with increasing threshold laser fluence.","PeriodicalId":54788,"journal":{"name":"Journal of Laser Micro Nanoengineering","volume":" ","pages":""},"PeriodicalIF":1.1,"publicationDate":"2019-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43764669","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","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 Imaging of a Laser Ablation Process Using Parallel Phase-Shifting Interferometry 利用平行移相干涉技术实现激光烧蚀过程的高速成像
IF 1.1 4区 材料科学
Journal of Laser Micro Nanoengineering Pub Date : 2019-12-01 DOI: 10.2961/jlmn.2019.03.0005
{"title":"High-Speed Imaging of a Laser Ablation Process Using Parallel Phase-Shifting Interferometry","authors":"","doi":"10.2961/jlmn.2019.03.0005","DOIUrl":"https://doi.org/10.2961/jlmn.2019.03.0005","url":null,"abstract":"","PeriodicalId":54788,"journal":{"name":"Journal of Laser Micro Nanoengineering","volume":" ","pages":""},"PeriodicalIF":1.1,"publicationDate":"2019-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48631677","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Experimental Study on the Relationship between Direction of Crack Propagation and Thermal Stress Distribution in Laser Cleaving Process for Glass Substrate 玻璃基板激光切割过程中裂纹扩展方向与热应力分布关系的实验研究
IF 1.1 4区 材料科学
Journal of Laser Micro Nanoengineering Pub Date : 2019-09-01 DOI: 10.2961/jlmn.2019.02.0008
Y. Nakajima, Keiji Yamada, K. Fukushima, Ryutaro Tanaka, K. Sekiya
{"title":"Experimental Study on the Relationship between Direction of Crack Propagation and Thermal Stress Distribution in Laser Cleaving Process for Glass Substrate","authors":"Y. Nakajima, Keiji Yamada, K. Fukushima, Ryutaro Tanaka, K. Sekiya","doi":"10.2961/jlmn.2019.02.0008","DOIUrl":"https://doi.org/10.2961/jlmn.2019.02.0008","url":null,"abstract":"Photoelastic observation was applied for the thermal stress cleaving of brittle substrates in order to experimentally investigate the stress distribution and its effects on the accuracy of crack propagation. In the laser cleaving process with a curved path, the principle stress acted on the incorrect direction near the edge of the substrate, then the crack deviated from the desired cleaving path. Additionally, high scanning speed of laser disturbed the distribution of the principal stress direction and resulted in the incline of cleaved surface. In the trimming process by laser cleaving, the straight cleaving path was bent toward the free edge of substrate due to the asymmetrical stress distribution, which was successfully observed by the proposed photoelastic method.","PeriodicalId":54788,"journal":{"name":"Journal of Laser Micro Nanoengineering","volume":"1 1","pages":""},"PeriodicalIF":1.1,"publicationDate":"2019-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"69259389","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Ablation Characteristics of Alumina and Zirconia Ceramics on Ultra-short Pulsed Laser Machining 超短脉冲激光加工氧化铝和氧化锆陶瓷的烧蚀特性
IF 1.1 4区 材料科学
Journal of Laser Micro Nanoengineering Pub Date : 2019-08-30 DOI: 10.2961/jlmn.2019.02.0009
Norbert Ackerl, K. Wegener
{"title":"Ablation Characteristics of Alumina and Zirconia Ceramics on Ultra-short Pulsed Laser Machining","authors":"Norbert Ackerl, K. Wegener","doi":"10.2961/jlmn.2019.02.0009","DOIUrl":"https://doi.org/10.2961/jlmn.2019.02.0009","url":null,"abstract":"Ultra-short pulsed laser manufacturing gives a unique route to ablate hard-to-machine materials and enables little thermal impact. A comparative study on an alumina-toughened zirconia (ATZ) composite and pure alumina is presented. Singleand multi-pulse ablation of 1030nm and 515nm wavelength with sub picosecond pulses reveal an abrupt increase of the material removal rate. Pockets with 5μm beam distance and 15 layers rotated by 23° are generated to attain the multi-pulse ablation rate. The threshold fluence gives 0.1J/cm2 and 0.11J/cm2 for green wavelength and the ATZ and alumina, respectively. Single pulse ablation with 7J/cm2 energy density point to the sharp ablation limit and an electron microscopy assessment reveals a step-like behavior. Subsequent Raman spectroscopy studies prove the persistence of the tetragonal morphology of zirconia. These findings enable laser manufacturing of microstructures on ceramic specimen with a 2.5D and quasi-tangential strategy.","PeriodicalId":54788,"journal":{"name":"Journal of Laser Micro Nanoengineering","volume":" ","pages":""},"PeriodicalIF":1.1,"publicationDate":"2019-08-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46491014","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 17
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