Results 21 to 30 of about 319,295 (264)
Numerical Simulation of Solid-Fluid 2-Phase-Flow of Cutting System for Cutter Suction Dredgers
Polish Maritime Research, 2018 The study of the flow characteristics of the solid-fluid two phase flow in the cutter suction dredger is very important for exploring the slurry formation mechanism and optimizing the operational parameters. In this study, standard k-ε model and Multiple
Zhang Min +3 more
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Placement of workstations for automated cutting process [PDF]
Tekstilna industrija, 2020 The correct placement of workstations is necessary for maximum efficiency of the work process in the cutting room. Automated spreading and cutting have different productivity.
Nemeša Ineta
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Test Method for Dynamic Flexibility of Large Thread Pitch Turning
Journal of Harbin University of Science and Technology, 2020 In the finishing process of turning large pitch thread, the system vibration causes the instantaneous change of the contact relationship between the tool and workpiece The axial change of the tool and workpiece contact relationship causes the thickness ...
LI Zhe +5 more
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Tehnički Glasnik, 2023 When machining difficult-to-cut metal materials often used to make sheet metal forming tools, excessive cutting force jumps often break the cutting edge. Therefore, this research developed a system of three neural network models to accurately predict the
Uroš Župerl, Miha Kovačič
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Scientific Reports, 2022 In order to study the influence of the multiple interaction of coal and rock and the velocity effect of the cutting head on the flutter stability of the cantilever roadheader, considering the physical characteristics of coal and rock, the structural ...
Yun Zhu, Miao Xie, He Wang
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Vibration Identification of Folded-MEMS Comb Drive Resonators
Micromachines, 2018 Natural frequency and frequency response are two important indicators for the performances of resonant microelectromechanical systems (MEMS) devices.
Jianxin Han +6 more
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矿业科学学报, 2023 If the shearer is cutting coal using the "memory cutting" technique, a manual demonstration is required.The memory cutting technology has higher requirements on the reserving conditions of coal seams.When the coal seam fluctuates greatly, frequent manual
Hou Yunbing +5 more
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Micromachines, 2018 This paper attempts to qualitatively identify the static pull-in position, pull-in voltage, and fundamental frequency of one-electrode microresonators from a physical perspective. During theoretical derivation, a generalized one-degree-of-freedom (1-DOF)
Jianxin Han +6 more
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Measurement of Cutting Temperature in Interrupted Machining Using Optical Spectrometry
Sensors, 2023 This research presents an experimental study focused on measuring temperature at the tool flank during the up-milling process at high cutting speed. The proposed system deals with emissivity compensation through a two-photodetector system and during ...
Isaí Espinoza-Torres +6 more
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Nonlinear Dynamic Analysis of the Cutting Process of a Nonextensible Composite Boring Bar
Shock and Vibration, 2020 A nonlinear dynamic analysis of the cutting process of a nonextensible composite cutting bar is presented. The cutting bar is simplified as a cantilever with plane bending.
Bole Ma, Yongsheng Ren
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