The Experts below are selected from a list of 15549 Experts worldwide ranked by ideXlab platform
Zhang Shuqiao - One of the best experts on this subject based on the ideXlab platform.
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experimental research on the dynamic characteristics of the cutting temperature in the process of high Speed Milling
Journal of Materials Processing Technology, 2003Co-Authors: Chen Ming, Sun Fanghong, Wang Haili, Yuan Renwei, Qu Zhenghong, Zhang ShuqiaoAbstract:Abstract The cutting temperature is a key factor which directly affects cutting tool wear, workpiece surface integrity and machining precision in the high Speed machining (HSM) process. The purpose of this paper is to present an inverse heat-transfer model considering three-dimensional transient heat conduction to calculate the heat flux and the temperature distribution on the tool–workpiece interface in the high Speed Milling process. The model was set up by a finite element method based on Beck’s inverse heat-conduction theory and was verified by numerical simulations and a series of experiments which aimed to obtain the surface temperature data of a thin-walled workpiece with the aid of an infrared thermometer and the tool–workpiece interface temperature by an embedded artificial thermocouple. The dynamic characteristics of the cutting temperature in high-Speed Milling aluminum alloy were studied systematically. The numerical simulation results revealed that there was a close agreement between the calculated temperature value and the measured temperature value of the cutting interface in high-Speed Milling of aluminum alloy. The inverse heat-conduction method can be used to estimate the heat flux flowing into the workpiece and the temperature distribution on the tool–workpiece interface. Using the infrared thermometer as a remote sensor can solve the problem of measuring the temperature in high-Speed Milling and also it can be used as an approach to reveal the cutting mechanism of high-Speed Milling. There exists a critical cutting Speed in the high-Speed Milling aluminum alloy. The value of this critical Speed will be different for the different cutting conditions. Constant feed per tooth must be kept in high-Speed Milling to efficiently suppress excessive heat generation while obtaining a high material removal rate, especially for machining difficult to-cut materials with a thin-wall construction. The average tool–workpiece interface temperature is influenced by the thickness of the workpiece. The related temperature distributions will be very beneficial to the optimal construction design for the thin-wall parts used in the aeronautics and astronautics as well as die and mold industries.
A. Feinauer - One of the best experts on this subject based on the ideXlab platform.
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Dynamic influence on workpiece quality in high Speed Milling
CIRP Annals - Manufacturing Technology, 1999Co-Authors: Uwe Heisel, A. FeinauerAbstract:The high Speed Milling process places completely new demands on the dynamic behaviour of machining centres. This paper describes the causes of vibrations in high Speed Milling. It includes a quantification of vibrations due to imbalances, accelerations and cutting forces. The effects on the quality of workpieces are simulated by a dynamic model of the machine. Therefore, also the mechanical structure and the axis control system are taken into account. The results of the simulation are verified by some cutting examinations. To improve the quality of workpieces suggestions are made to avoid vibrations or to compensate the effects on vibrations due to imbalance.
Yue Xiaobin - One of the best experts on this subject based on the ideXlab platform.
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High Speed Milling Experiment for Thin-wall Workpiece
Manufacturing Technology & Machine Tool, 2007Co-Authors: Yue XiaobinAbstract:In this paper, based on the single factor experiments of high Speed Milling, the influence rule for workpiece surface quality and Milling force are researched. The high Speed Milling parameters for thin-wall workpiece are optimized, and on the basis, the high Speed Milling experiment was done. As a result, the machining precision and efficiency for thin-wall workpiece are improved, which are based on the optimum high Speed Milling parameters.
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The Influence of High Speed Milling Parameter on Workpiece Surface Quality
Machine Tool & Hydraulics, 2007Co-Authors: Yue XiaobinAbstract:The cutting parameter is very important for workpiece surface quality.The single factor experiments were done.The influence rule of high Speed Milling parameters on workpiece roughness of surface and residual stress and the distributing of residual stress was researched.As a result, high Speed Milling parameter can achieve better workpiece surface quality.
Y.s. Wong - One of the best experts on this subject based on the ideXlab platform.
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tool wear characteristics of binderless cbn tools used in high Speed Milling of titanium alloys
Wear, 2005Co-Authors: Z.g. Wang, Mezanur Rahman, Y.s. WongAbstract:Abstract Titanium alloys are difficult-to-cut materials, and the performance of conventional tools is poor when used to machine them. In this paper, a new tool material, which is binderless cubic boron nitride (BCBN), is used for high-Speed Milling of a widely used titanium alloy Ti–6Al–4V. The performance and the wear mechanism of the tool have been investigated when slot Milling this alloy. This type of tool manifests longer tool life at high cutting Speeds. Analyses based on the SEM and EDX suggest that adhesion of workpiece, attrition and diffusion–dissolution are the main wear mechanisms of the BCBN tool when used in high-Speed Milling of Ti–6Al–4V.
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high Speed Milling of titanium alloys using binderless cbn tools
International Journal of Machine Tools & Manufacture, 2005Co-Authors: Z.g. Wang, Y.s. Wong, Mezanur RahmanAbstract:Abstract The performance of conventional tools is poor when used to machine titanium alloys. In this paper, a new tool material, which is binderless cubic boron nitride (BCBN), is used for high-Speed Milling of a widely used titanium alloy Ti–6Al–4V. The performance and the wear mechanism of the BCBN tool have been investigated when slot Milling the titanium alloy in terms of cutting forces, tool life and wear mechanism. This type of tool manifests longer tool life at high cutting Speeds. Observations based on the SEM and EDX suggest that adhesion of workpiece and attrition are the main wear mechanisms of the BCBN tool when used in high-Speed Milling of Ti–6Al–4V.
Bo Zhao - One of the best experts on this subject based on the ideXlab platform.
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Study on Surface Roughness in Ultrasonic High-Speed Milling of SiCp/Al Composites
Materials Science Forum, 2012Co-Authors: Dao Hui Xiang, Guang Xi Yue, Hai Tao Liu, Bo ZhaoAbstract:The orthogonal analysis and single factor analysis were used to analyze the roughness of SiCp/Al metal matrix composites (SiCp/Al MMCs) with ultrasonic high-Speed Milling and high-Speed Milling. The influences of Milling Speed, feed and Milling depth on the roughness were studied. The research indicates that the roughness in ultrasonic high-Speed Milling is lower than that in high-Speed Milling under the same condition, at the same time the optimal parameters of ultrasonic high-Speed Milling are obtained, this has a guiding significance for finish machining of SiCp/Al composites.
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Studies on Cutting Forces of High Volume Fraction SiCp/Al Composites with Ultrasonic Vibration High Speed Milling
Advanced Materials Research, 2011Co-Authors: Dao Hui Xiang, Guang Xi Yue, Hai Tao Liu, Xin Tao Zhi, Bo ZhaoAbstract:The orthogonal method was used for analyzing the machining performance of high volume fraction SiCp/Al metal matrix composites (SiCp/Al MMCs) during high Speed Milling and ultrasonic high Speed Milling in this paper. The influence of cutting Speed, feed rate and cutting depth on 3-directional forces were investigated. The results show that the cutting forces are decreased due to the cutting mechanism of SiCp/Al MMCs is changed from brittle cutting to ductile cutting during ultrasonic high Speed Milling. In addition, the chips exist in forms of C-type chips because of increasing rake angles. Ultrasonic high-Speed Milling is a more highly effective hard cutting way compared with high Speed Milling.
