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黄亦申,许雪峰,姚春燕,胡建德,彭伟
《中国工程科学》 2012年 第14卷 第10期 页码 82-89
研究苯代三聚氰胺甲醛(BGF)微球与阳离子型聚电解质聚二烯丙基二甲基氯化铵(PDADMAC)、阴离子型聚电解质聚4-苯乙烯璜酸钠(PSS)之间的吸附特性,利用静电自组装技术改变和控制BGF微球的荷电特性,制备出不同形式的PEi BGF/SiO2复合磨粒,以Zeta电位、透射电子显微镜(TEM)和热重分析(TG)等手段对复合磨粒进行了表征,并利用这些复合磨粒制备了铜片抛光用的复合磨粒抛光液。抛光试验表明,吸附在聚合物微球表面和游离于抛光液中的SiO2磨粒在抛光中均起到材料去除作用。传统单一SiO2磨粒抛光液的铜材料去除率为264 nm/min,PE0 BGF/SiO2混合磨粒抛光液的铜材料去除率为348 nm/min,PE3 BGF/SiO2复合磨粒抛光液的铜材料去除率为476 nm/min。经上述3种抛光液抛光后的铜表面,在5 μm×5 μm范围内,表面粗糙度Ra从0.166 μm分别降至3.7 nm、2.6 nm和1.5 nm,峰谷值Rpv分别小于20 nm、14 nm和10 nm,复合磨粒抛光液对铜片有良好的抛光性能。
Review on mechanism and process of surface polishing using lasers
Arun KRISHNAN, Fengzhou FANG
《机械工程前沿(英文)》 2019年 第14卷 第3期 页码 299-319 doi: 10.1007/s11465-019-0535-0
关键词: laser polishing surface roughness process parameters mechanism
Numerical analysis of hydrodynamic process of circular-translational-moving polishing (CTMP)
ZHAI Wenjie, LIU Changxiong, LIANG Yingchun
《机械工程前沿(英文)》 2008年 第3卷 第4期 页码 441-448 doi: 10.1007/s11465-008-0074-6
关键词: numerical analysis practical CTMP circular-translational-moving polishing CTMP different
Advances in polishing of internal structures on parts made by laser-based powder bed fusion
《机械工程前沿(英文)》 2023年 第18卷 第1期 doi: 10.1007/s11465-022-0724-0
关键词: laser-based powder bed fusion polishing internal structures surface quality surface features post process additive manufacturing
Ziyuan LIU, Hang GAO, Dongming GUO
《机械工程前沿(英文)》 2020年 第15卷 第2期 页码 294-302 doi: 10.1007/s11465-019-0576-4
关键词: potassium dihydrogen phosphate (KDP) crystal controllable deliquescence two-phase air–water fluid high-efficiency polishing material removal
Study on micro-texture and skid resistance of aggregate during polishing
Zhenyu QIAN, Lingjian MENG
《结构与土木工程前沿(英文)》 2017年 第11卷 第3期 页码 346-352 doi: 10.1007/s11709-017-0409-7
关键词: skid resistance of pavement micro-texture aggregates polishing test
面向大幅面金属增材抛光的激光扫描振镜与伺服台协同控制系统 Article
崔梦嘉, 卢立斌, 张震, 管迎春
《工程(英文)》 2021年 第7卷 第12期 页码 1732-1740 doi: 10.1016/j.eng.2020.06.028
为了满足高品质金属增材制造的迫切需求,本文创新地提出了一种以激光扫描振镜与精密伺服台协同控制为核心的大幅面激光精密抛光方法,以实现大幅面选区激光熔化(SLM)成形镍合金精密抛光。我们提出的协同控制系统主要包括主从式新型协同控制架构、运动矢量分解和误差合成等核心模块。研究实验结果表明,与传统步进-扫描方法相比,该协同控制系统实现了激光光斑连续运动,避免了拼接误差,加工效率提升了38.24%。由于激光扫描路径更流畅,相应能量分布更均匀,因此,大幅面抛光质量得到显著改善。本协同系统为大幅面、高精度、高效率的激光精密加工提供了重要途径,在航空航天、新能源、高端模具、医疗器械等精密制造领域具有广阔的应用前景。
Laboratory and field evaluation of asphalt pavement surface friction resistance
Zhong WU, Chris ABADIE
《结构与土木工程前沿(英文)》 2018年 第12卷 第3期 页码 372-381 doi: 10.1007/s11709-017-0463-1
Pavement surface friction is a significant factor for driving safety and plays a critical role in reducing wet-pavement crashes. However, the current asphalt mixture design procedure does not directly consider friction as a requirement. The objective of this study was to develop a surface friction prediction model that can be used during a wearing course mixture design. To achieve the objective, an experimental study was conducted on the frictional characteristics of typical wearing course mixtures in Louisiana. Twelve wearing course mixtures including dense-graded and open-graded mixes with different combinations of aggregate sources were evaluated in laboratory using an accelerated polishing and testing procedure considering both micro- and macro texture properties. In addition, the surface frictional properties of asphalt mixtures were measured on twenty-two selected asphalt pavement sections using different in situ devices including Dynamic Friction Tester (DFT), Circular Texture Meter (CTM), and Lock-Wheel Skid Trailer (LWST). The results have led to develop a procedure for predicting pavement end-of-life skid resistance based on the aggregate blend polish stone value, gradation parameters, and traffic, which is suited in checking whether the selected aggregates in a wearing course mix design would meet field friction requirements under a certain design traffic polishing.
关键词: friction skid resistance polishing PSV LWST micro-texture macro-texture
Review on the progress of ultra-precision machining technologies
Julong YUAN, Binghai LYU, Wei HANG, Qianfa DENG
《机械工程前沿(英文)》 2017年 第12卷 第2期 页码 158-180 doi: 10.1007/s11465-017-0455-9
Ultra-precision machining technologies are the essential methods, to obtain the highest form accuracy and surface quality. As more research findings are published, such technologies now involve complicated systems engineering and been widely used in the production of components in various aerospace, national defense, optics, mechanics, electronics, and other high-tech applications. The conception, applications and history of ultra-precision machining are introduced in this article, and the developments of ultra-precision machining technologies, especially ultra-precision grinding, ultra-precision cutting and polishing are also reviewed. The current state and problems of this field in China are analyzed. Finally, the development trends of this field and the coping strategies employed in China to keep up with the trends are discussed.
关键词: ultra-precision grinding ultra-precision cutting ultra-precision polishing research status in China development tendency
标题 作者 时间 类型 操作
Numerical analysis of hydrodynamic process of circular-translational-moving polishing (CTMP)
ZHAI Wenjie, LIU Changxiong, LIANG Yingchun
期刊论文
Experimental study on high-efficiency polishing for potassium dihydrogen phosphate (KDP) crystal by using
Ziyuan LIU, Hang GAO, Dongming GUO
期刊论文
Study on micro-texture and skid resistance of aggregate during polishing
Zhenyu QIAN, Lingjian MENG
期刊论文
Laboratory and field evaluation of asphalt pavement surface friction resistance
Zhong WU, Chris ABADIE
期刊论文