Results 21 to 30 of about 1,368 (215)
Science and Engineering of Composite Materials, 2023 Twisting is an important part in the production process of large package E-glass yarn. To derive the twisting process parameters of large package E-glass yarn, a method from the physical properties of bobbin yarn is proposed based on the study of the ...
Wang Xi +6 more
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Thermal Model of High-Speed Spindle Units
Intelligent Information Management, 2010 For the purpose to facilitate development of high-speed Spindle Units (SUs) running on rolling bearings, we have developed a beam element model, algorithms, and software for computer analysis of thermal characteristics of SUs. The thermal model incorporates a model of heat generation in rolling bearings, a model of heat transfer from bearings, and ...
Jeong-Du Kim, Igor Zverv, Keon-Beom Lee
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Testing and Modeling of Thrust Force and Torque in Drilling Recombinant Bamboo
BioResources, 2014 Recombinant bamboo with a thickness of 15 mm was drilled on a CNC machine. The process parameters considered were spindle speed, feed rate, and diameter of the drill, and the response parameters were thrust force and torque.
Rongrong Li +4 more
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Experimental Investigation on Electrochemical Grinding (ECG) for Stainless Steel 316 [PDF]
Engineering and Technology Journal, 2020 This research focuses on material removal rate (MRR) and surface roughness during electrochemical grinding (ECG) for stainless steel 316. The effect of applied current, electrolyte concentration, gap size and spindle speed on machining performances has ...
Abdullah J. Ghadban, Abbas F. Ibrahim
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Advances in Mechanical Engineering, 2018 The dynamic properties of aerostatic spindle systems vary with the spindle speed and have a significant impact on the processing quality of ultra-precision machine tools.
Peng Chen +5 more
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SUPPRESSION OF PERIOD DOUBLING CHATTER IN HIGH-SPEED MILLING BY SPINDLE SPEED VARIATION [PDF]
Machining Science and Technology, 2011 Spindle speed variation is a well known technique to suppress regenerative machine tool vibrations, but it is usually considered to be effective only for low spindle speeds. In the current paper, spindle speed variation is applied to the high speed milling process, at the spindle speeds where the constant speed cutting results in period doubling ...
Seguy, Sébastien +4 more
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Case Studies in Thermal Engineering, 2021 The high-speed motorized spindle is the core component of high-speed and high-precision machining, and its compact structure leads to internal heat accumulation and thermal deformation.
Ye Dai +6 more
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Programming spindle speed variation in turning
Eastern-European Journal of Enterprise Technologies, 2017 Разработана математическая модель и прикладная программа для моделирования возникновения регенеративных колебаний при точении в 3D пространстве. Программа предназначена для целенаправленного поиска наилучших параметров гармонического закона изменения частоты вращения шпинделя при программировании на токарном станке с числовым программным управлением ...
Petrakov, Yuriy +2 more
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Applied Sciences, 2018 A conventional manual lathe electric motor drives the multi-stage gearbox transmitting torque to the spindle so that the workpiece makes contact with the machine tool at a given speed.
Tadeusz Mikolajczyk +7 more
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Effect of High Speed Milling Process Parameters on the Milling Force and Surface Topography of AM50A Magnesium Alloy [PDF]
Xibei Gongye Daxue Xuebao, 2018 Within the scope of high speed milling process parameters, analyzed and discussed the effects of spindle speed, feed rate, milling depth and milling width on milling forces in the process of high speed milling of AM50A magnesium alloy.
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