Results 1 to 10 of about 1,269 (116)

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

open access: yesInternational Journal of Advanced Manufacturing Technology, 2009
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 this paper, the effect of spindle speed variation is analyzed in the high-speed domain for spindle speeds corresponding to the first flip (period doubling) and to the first Hopf
Tamás Insperger   +2 more
exaly   +5 more sources

Analysis and Experiment of Dynamic Picking Process of Spindle of Cotton Picker

open access: yesAgriculture, 2022
The spindle is a key core component of a cotton picker, and its operating parameters directly affect the quality of cotton harvesting. In this study, the spindle was selected as the research object.
Haiyang Li   +8 more
doaj   +1 more source

Assessment of Hole Quality, Thermal Analysis, and Chip Formation during Dry Drilling Process of Gray Cast Iron ASTM A48

open access: yesEng, 2022
The cutting parameters in drilling operations are important for high-quality holes and productivity improvement in any manufacturing industry. This study investigates the effects of spindle speed and feed rate on temperature, surface roughness, hole size,
Numan Habib   +5 more
doaj   +1 more source

Research on the Effect of Spindle Speed on the Softening and Hardening Characteristics of the Axial Operating Stiffness of Machine Tool Spindle

open access: yesLubricants, 2022
Spindle stiffness is one of the most critical indicators for evaluating and measuring the service performance of spindles. The traditional static stiffness indexes only involve static analysis and rarely focus on the study of spindle-carrying capacity ...
Jiandong Li   +6 more
doaj   +1 more source

Dynamic Modeling of Motorized Spindle System with Unbalanced Mass and Spindle Inclination

open access: yesApplied Sciences, 2023
The high-speed motorized spindle has been wildly used in the field of aerospace processing, due to its advantages such as high speed, high precision, and high efficiency.
Dan Gu   +4 more
doaj   +1 more source

Study on precision dicing process of SiC wafer with diamond dicing blades

open access: yesNanotechnology and Precision Engineering, 2021
An innovative method for high-speed micro-dicing of SiC has been proposed using two types of diamond dicing blades, a resin-bonded dicing blade and a metal-bonded dicing blade.
Xue Wang   +4 more
doaj   +1 more source

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

open access: yesAdvanced Materials Research, 2010
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 variations is made numerically with the semi-discretization method.
Seguy, Sébastien   +3 more
openaire   +3 more sources

Analysis of Hole Quality and Chips Formation in the Dry Drilling Process of Al7075-T6

open access: yesMetals, 2021
Millions of holes are produced in many industries where efficient drilling is considered the key factor in their success. High-quality holes are possible with the proper selection of drilling process parameters, appropriate tools, and machine setup. This
Numan Habib   +6 more
doaj   +1 more source

Chatter Vibration Surveillance by the Optimal‐linear Control of Spindle Speed and Randomly Varying Spindle Speed [PDF]

open access: yesPAMM, 2009
AbstractTool‐workpiece relative vibration plays principal role during the process of milling with slender ball end mills. Due to certain conditions, a loss of stability and generation of self‐excited chatter vibration will appear. The paper is devoted to a new approach towards vibration surveillance of rotating tools in modern milling machines. Dynamic
Krzysztof Kalinski, Marek Galewski
openaire   +1 more source

Study and Application of Cooling Technology for High Speed Motorized Spindle

open access: yesJournal of Harbin University of Science and Technology, 2022
For the high-speed motorized spindle high-speed and structural integration of the temperature rise control and other technical problems, the existing cooling technology achievements of high-speed motorized spindles are systematically analyzed and ...
CHENG Yao-nan   +4 more
doaj   +1 more source

Home - About - Disclaimer - Privacy