Results 1 to 10 of about 44,195 (310)

Chatter Control by Spindle Speed Variation in High-Speed Milling [PDF]

Advanced Materials Research, 2009
High-speed milling operations are often limited by regenerative vibrations. The aim of this paper is to analyze the effect of spindle speed variation on machine tool chatter in high-speed milling. The stability analysis of triangular and sinusoidal shape
Arnaud, Lionel, Dessein, Gilles, Insperger, Tamás, Seguy, Sébastien   +3 more
core   +9 more sources

On the stability of high-speed milling with spindle speed variation [PDF]

The International Journal of Advanced Manufacturing Technology, 2010
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.
BP Mann, E Al-Regib, E Budak, E Solis, F Yang, Gilles Dessein, Grégoire Peigné, GS Duncan, H Paris, H Zhang, J Tlusty, J Tlusty, JS Sexton, JS Sexton, JS Sexton, Lionel Arnaud, M Zatarain, MA Davies, ML Campomanes, ND Sims, PV Bayly, R Radulescu, RPH Faassen, S Jayaram, S Sastry, S Seguy, S Seguy, S Smith, SA Tobias, SC Lin, SD Merdol, Sébastien Seguy, T Insperger, T Insperger, T Insperger, T Insperger, T Surmann, T Takemura, Tamás Insperger, TC Tsao, XH Long, Y Altintas, Y Altintas, Y Altintas   +43 more
core   +9 more sources

Tribological Analysis of a Radial Plain Bearing [PDF]

Robotica & Management, 2022
The paper presents experimental determination of the friction coefficient variation at a radial plain bearing, depending on the values of the radial force R and the angular speed ω of the spindle at a constant lubricant temperature value.
Daniel-Gheorghe Vela, Ion Vela, Calin-Octavian Miclosina   +2 more
doaj   +1 more source

Characterization of Dimensional Variations in Turning Process for Multistep Rotary Shaft of High-Speed Motorized Spindle

Machines, 2023
The surface accuracy of a multistep rotary shaft is very important in manufacturing and the assembly process of the high-speed motorized spindle of CNC machine tools, which is closely related to the machined dimensional variation induced by the turning ...
Ang Tian, Xueming Du, Shun Liu, Sun Jin
doaj   +1 more source

Lubrication of Radial Loaded Tapered Roller Bearings Under High Rotational Speeds

Tribology in Industry, 2023
To improve the manufacturing accuracy in the machining process, the stiffness of the machine tool spindle must be increased. One approach is to replace the conventionally used spindle bearings by tapered roller bearings to achieve a higher stiffness and ...
Marcus Gärtner, Christian Brecher, Stephan Neus, Cornelia Recker, Mark Franken, Thomas Engelmann, Ingo Wagler   +6 more
doaj   +1 more source

An Updated Method for Stability Analysis of Milling Process with Multiple and Distributed Time Delays and Its Application

Applied Sciences, 2021
Predicting and avoiding the onset of milling chatter are desirable to reduce its harm to machine tools, workpieces, and cutters. This paper presents an updated method to complete the stability prediction for the milling process with multiple and ...
Gang Jin, Wenshuo Li, Jianxin Han, Zhanjie Li, Gaofeng Hu, Guangxing Sun   +5 more
doaj   +1 more source

Characterization and Evaluation of Rotation Accuracy of Hydrostatic Spindle under the Influence of Unbalance

Shock and Vibration, 2020
The paper studies the characterization and evaluation technology of rotation accuracy of hydrostatic spindle under the influence of unbalance. The dynamic model of the motion error of the hydrostatic spindle is established based on the dynamic parameters.
Dongju Chen, You Zhao, Jingfang Liu
doaj   +1 more source

Design of a Hydrostatic Spindle and Its Simulation Analysis with the Application to a High Precision Internal Grinding Machine

Machines, 2022
Hydrostatic thrust bearings are the core part of the hydrostatic spindle, which is widely used in high precision grinding machines. In this paper, the viscosity-temperature (v-t) characteristics of hydrostatic oil are systematically investigated, which ...
Youyun Shang, Kai Cheng, Hui Ding, Shijin Chen   +3 more
doaj   +1 more source

Effect of Machining Parameters on Surface Roughness in Edge Trimming of Carbon Fiber Reinforced Plastics (CFRP)

Tribology Online, 2020
The main aim of this research was to investigate the effect of machining parameters towards surface quality during edge trimming process on a specific CFRP material.
S. A. Sundi, R. Izamshah, M. S Kasim
doaj   +1 more source

Research on the Characteristic Experiment about Milling Typical Die Steel 4Cr5MoSiV1 with Solid Carbide Ball end Mill

Journal of Harbin University of Science and Technology, 2020
The milling process of 4Cr5MoSiV1, a typical hot work die steel, is taken as the research object The high speed milling experiment is carried out with the double edge ball head milling cutter The laser displacement sensor is used to measure the cutting ...
YANG Xiaofan, LIU Judong, LI Lingxiang, HE Genghuang   +3 more
doaj   +1 more source