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be operated at 2×105 r/min to obtain a uniform pattern and surface roughness on machining brittle materials as well as soft materials such as brass and aluminum. The goals of this study are to understand the machined pattern obtained using a given diamond-tipped array (n×n), investigate the change in the surface roughness as a function of the cutting speed and establish the machining conditions......
(SS304), which was directly fixed on the insulator placed in a tank. The machining profile of cavity was measured by surface mapping microscope (MicroXAM). The experimental conditions are listed...J. Cent. South Univ. Technol. (2011) 18: 1115-1120 DOI: 10.1007/s11771-011-0811-6 Effects of mask wall angle on matrix-hole shape changes during electrochemical machining by mask LI Dong-lin(李冬林......
Machining characteristics of complex prism pattern on electroplated roll by copper Tae-Jin JE1, Sang-Cheon PARK2, Kang-Won LEE1, Yeong-Eun YOO1, Doo-Sun CHOI1, Kyung-Hyun WHANG1, Myung-Chang... of multiple threads is shown in Fig.1(d). The pitch of the feed is to multiply the pitch of the prism pattern by the number of the threads. Fig.1 Schematics of machining mechanism of multiple threads......
Mg alloy surface alloying layer fabricated through evaporative pattern casting technology CHEN Dong-feng(陈东风), DONG Xuan-pu(董选普), ZHANG Xiong(张 雄), FAN Zi-tian(樊自田) State Key Laboratory... factors of surface alloying layer by evaporative pattern casting technology were investigated. A certain thickness alloying layer was formed on the surface of Mg-alloy matrix when the pouring temperature......
the pitch error. And, the effects of the thermal expansion of the spindles can be eliminated by starting pattern machining after 2 h warming-up of the machining system. The surface temperature... patterns without pitch error were machined on the large roll mold. Key words: copper-plated roll mold; machining; prism pattern; temperature variation 1 Introduction Micro prism film is used......
Effect of process parameters on density of magnesium alloy parts by low-pressure expendable pattern casting LI Ji-qiang(李继强), FAN Zi-tian(樊自田), DONG Xuan-pu(董选普) State Key Laboratory of Material...; Abstract: The combination of magnesium alloys with the low-pressure expendable pattern casting (LP-EPC) process would bright future for application of magnesium......
indicate that the processing speed, machining accuracy and surface quality can be improved under UPECM compound machining.Key words:ultrasonic; pulse electrochemical machining (PECM); cavitation catalysis...Mechanism of ultrasonic-pulse electrochemical compound machining based on particlesZHANG Cheng-guang(张成光), ZHANG Yong(张勇), ZHANG Fei-hu(张飞虎) (School of Mechanical and Electrical Engineering, Harbin......
, deformation of entrance position represents the influence of tool deflection, as shown in Fig.8(c). Fig.6 Results of machined surface and burr formation on machining channel pattern at different cutting depths: (a, a′) 10 μm; (b, b′) 20 μm; (c, c′) 30 μm Fig.7 Results of surface roughness on bottom position of machining channel pattern: (a) Ra=2.0 nm, Rz=28 nm, cutting......
the requirement of the advanced optical applications. It is very important to develop the manufacturing technology for the optical component of certain pattern used at different wavelengths. The machining... limit, 3) clean machined surface and high efficiency, 4) any materials, and 5) machining/ ablating on the focal spot. Compared with the traditional laser, femtosecond laser can fabricate nanostructures......
by EDM process to increase the efficiency of material removal and reduce the surface roughness. In this study, the benefits of the hybrid process were determined as the machining performance of hybrid.... The experimental results show that the hybrid process of AJM and EDM can enhance the machining efficiency and improve the surface quality. Consequently, the developed hybrid process can fit the requirements......