The Experts below are selected from a list of 3492 Experts worldwide ranked by ideXlab platform

Zixiang Xia - One of the best experts on this subject based on the ideXlab platform.

  • Effect of microhole-textures filled with graphite on tribological properties of WC/TiC/Co carbide tools:
    Proceedings of the Institution of Mechanical Engineers Part J: Journal of Engineering Tribology, 2019
    Co-Authors: Wenlong Song, Zixiang Xia, Wang Shoujun, Xuan Zhang
    Abstract:

    To expand the industrial application of cemented carbide, micro-EDM was utilized to machine microhole-textures on the carbide surface; graphite powder was burnished into the textured Microholes. Th...

  • Tribological Performance of Microhole-Textured Carbide Tool Filled with CaF2
    Materials, 2018
    Co-Authors: Wenlong Song, Shoujun Wang, Zixiang Xia
    Abstract:

    To enhance the friction and wear performance of cemented carbide, textured Microholes were machined on micro Electron Discharge Machining (EDM) on the tool rake face, and Calcium Fluoride (CaF2) powders were burnished into the Microholes. The friction and wear characteristics of the microhole-textured tool filled with CaF2 were investigated using sliding friction tests and dry cutting tests. Results exhibited that the working temperature could affect the tribological performance of the microhole-textured tool filled with CaF2 due to the temperature-sensitive nature of CaF2. There is no obvious lubrication effect for the textured tool filled with CaF2 at room temperature, while it was shown to be more effective in improving tribological property at a cutting speed of higher than 100 m/min with a corresponding to cutting temperature of 450 °C. The possible mechanisms for the microhole-textured tool filled with CaF2 were discussed and established.

  • Tribological Performance of Microhole-Textured Carbide Tool Filled with CaF2
    MDPI AG, 2018
    Co-Authors: Wenlong Song, Shoujun Wang, Zixiang Xia
    Abstract:

    To enhance the friction and wear performance of cemented carbide, textured Microholes were machined on micro Electron Discharge Machining (EDM) on the tool rake face, and Calcium Fluoride (CaF2) powders were burnished into the Microholes. The friction and wear characteristics of the microhole-textured tool filled with CaF2 were investigated using sliding friction tests and dry cutting tests. Results exhibited that the working temperature could affect the tribological performance of the microhole-textured tool filled with CaF2 due to the temperature-sensitive nature of CaF2. There is no obvious lubrication effect for the textured tool filled with CaF2 at room temperature, while it was shown to be more effective in improving tribological property at a cutting speed of higher than 100 m/min with a corresponding to cutting temperature of 450 °C. The possible mechanisms for the microhole-textured tool filled with CaF2 were discussed and established

Wenlong Song - One of the best experts on this subject based on the ideXlab platform.

  • Effect of microhole-textures filled with graphite on tribological properties of WC/TiC/Co carbide tools:
    Proceedings of the Institution of Mechanical Engineers Part J: Journal of Engineering Tribology, 2019
    Co-Authors: Wenlong Song, Zixiang Xia, Wang Shoujun, Xuan Zhang
    Abstract:

    To expand the industrial application of cemented carbide, micro-EDM was utilized to machine microhole-textures on the carbide surface; graphite powder was burnished into the textured Microholes. Th...

  • Tribological Performance of Microhole-Textured Carbide Tool Filled with CaF2
    Materials, 2018
    Co-Authors: Wenlong Song, Shoujun Wang, Zixiang Xia
    Abstract:

    To enhance the friction and wear performance of cemented carbide, textured Microholes were machined on micro Electron Discharge Machining (EDM) on the tool rake face, and Calcium Fluoride (CaF2) powders were burnished into the Microholes. The friction and wear characteristics of the microhole-textured tool filled with CaF2 were investigated using sliding friction tests and dry cutting tests. Results exhibited that the working temperature could affect the tribological performance of the microhole-textured tool filled with CaF2 due to the temperature-sensitive nature of CaF2. There is no obvious lubrication effect for the textured tool filled with CaF2 at room temperature, while it was shown to be more effective in improving tribological property at a cutting speed of higher than 100 m/min with a corresponding to cutting temperature of 450 °C. The possible mechanisms for the microhole-textured tool filled with CaF2 were discussed and established.

  • Tribological Performance of Microhole-Textured Carbide Tool Filled with CaF2
    MDPI AG, 2018
    Co-Authors: Wenlong Song, Shoujun Wang, Zixiang Xia
    Abstract:

    To enhance the friction and wear performance of cemented carbide, textured Microholes were machined on micro Electron Discharge Machining (EDM) on the tool rake face, and Calcium Fluoride (CaF2) powders were burnished into the Microholes. The friction and wear characteristics of the microhole-textured tool filled with CaF2 were investigated using sliding friction tests and dry cutting tests. Results exhibited that the working temperature could affect the tribological performance of the microhole-textured tool filled with CaF2 due to the temperature-sensitive nature of CaF2. There is no obvious lubrication effect for the textured tool filled with CaF2 at room temperature, while it was shown to be more effective in improving tribological property at a cutting speed of higher than 100 m/min with a corresponding to cutting temperature of 450 °C. The possible mechanisms for the microhole-textured tool filled with CaF2 were discussed and established

Masaru Fujino - One of the best experts on this subject based on the ideXlab platform.

  • Twin-Probe Vibroscanning Method for Dimensional Measurement of Microholes
    CIRP Annals, 1997
    Co-Authors: Takahisa Masuzawa, Christian Bergaud, B. J. Kim, Masaru Fujino
    Abstract:

    We present a new twin-probe vibroscanning method for measuring the inside profile of Microholes in electrically nonconductive materials. Instead of the single cantilever probe used in the conventional vibroscanning method, a probe with two elements in electrical contact is used to detect the surface. Following a feasibility test with a macroscale prototype device, the measurement of Microholes was realized using a silicon-based microprobe.

Fuang Yua Huang - One of the best experts on this subject based on the ideXlab platform.

  • use of micro ultrasonic vibration lapping to enhance the precision of Microholes drilled by micro electro discharge machining
    International Journal of Machine Tools & Manufacture, 2002
    Co-Authors: Cheng A Wang, Fuang Yua Huang
    Abstract:

    In microhole machining of metal, micro electro-discharge machining (MEDM) is an effective method that can easily create a hole with a diameter under 100 μm. Due to the poor surface quality and shape of MEDM, a machining method that compounds MEDM and micro ultrasonic vibration lapping (MUVL) is proposed here to allow the production of high precision Microholes with high aspect ratios. In our investigations, first, a circular or stepped circular microtool was made by the MEDM process, and the tool was used to create a microhole on a small piece of titanium plate in the same machining process. Finally, the abrasive particles driven by the same tool were utilized to grind this hole in the MUVL procedure, and a hole with a diameter about 100 μm can be obtained. Owing to the microtool and workpiece not taking apart from the clamping apparatus during different machining steps, the microhole was processed in the co-axial situation, so the precise shape and perfect surface can be obtained easily. For example, the diameter variation between the entrances and exits of the Microholes could reach a value of about 5 μm when the workpiece had a thickness of 500 μm, if the circular microtools was used. Meanwhile, the roundness of the Microholes clearly improved, regardless of whether circular or stepped tools were used. However, owing to the perfect grinding effect between the Microholes and microtools, the stepped circular tools produced high quality surfaces more easily than the circular tools.

Jiubin Tan - One of the best experts on this subject based on the ideXlab platform.

  • A Twin FBG Probe and Integration With a Microhole-Measuring Machine for the Measurement of Microholes of High Aspect Ratios
    IEEE-ASME Transactions on Mechatronics, 2016
    Co-Authors: Kunpeng Feng, Jiwen Cui, Shiyuan Zhao, Jiubin Tan
    Abstract:

    To enhance the precision manufacture of the Microholes of high aspect ratios, a fiber Bragg grating (FBG) probe with a twin fiber structure based on capillary-driven self-assembly fabrication method is developed for a micro-hole-measuring machine to do the high-precision measurement. The sensing principle of the twin FBG probe is investigated through analyzing the strain distribution within the probe under an axial or radial contact displacement. Then, the design and fabrication method of the twin FBG probe is demonstrated. To improve the accuracy of the measurement, both data processing method and measuring method are proposed. A data processing method for acquiring the triggering position with the transformation of the signal domain and multiple fitting is implemented to raise the accuracy of the triggering position. And a method for measuring the diameter of a microhole with perpendicular bisector of the chords and dichotomization scanning is utilized to enhance the determination accuracy of the diameter. Experimental and simulation results indicate that the data processing method and measuring method are robust, and the accuracy of the measurement can be improved.

  • development of a double fiber probe with a single fiber bragg grating for dimensional measurement of Microholes with high aspect ratios
    Optics Letters, 2014
    Co-Authors: Jiwen Cui, Kunpeng Feng, Jiubin Tan
    Abstract:

    A fiber Bragg grating (FBG)-based probe is developed by designing a novel double fiber structure to make the probe sensitive to both axial and radial contact displacements. A matched FBG pair interrogation system for the probe is modeled, and the best matched initial condition is found to make the probing system work in the linear and most sensitive mode. Actual measurements of ring gauges and fuel injection nozzles indicate that, for a microhole with an aspect ratio of greater than 14∶1, an axial resolution of 8 nm and a radial resolution of 30 nm can be achieved with the developed probe. It is therefore concluded that the double fiber probe with a single FBG developed can be used to measure high aspect ratio Microholes.