Results 11 to 20 of about 347,911 (156)

MODELLING AND ANALYSIS OF CHATTER MITIGATION STRATEGIES IN MILLING [PDF]

open access: yes, 2013
Machining stability plays a major role in improving machine tool performance and product quality. Uncontrolled chatter phenomenon causes too many defects and problems in manufacturing industry such as increased surface roughness, tool wear and even ...
Saleh, Khaled
core   +6 more sources

Some aspects about milling : expert system for cutting parameters selection and control designs [PDF]

open access: yes, 2006
Milling is a mechanical process which consist of the relative movement between feeding the work-piece and rotating the multitooth cutter, to remove material from the work-piece.
De la Sen, Manuel   +2 more
core   +8 more sources

Optimisation of variable helix end milling tools [PDF]

open access: yes, 2010
High productivity, low cost and high profits are important issues in aerospace, automotive and tool/die metal manufacturing industries. Machining processes are widely used in manufacturing operations for metal manufacturing rather than casting and ...
Yusoff, Ahmad
core   +7 more sources

Control method of chatter vibration based on inverse analysis of end milling chatter mark

open access: yesNihon Kikai Gakkai ronbunshu, 2017
It is well known that a regular chatter mark appears on the machined surface when chatter vibration occurs. There must be an essential information relationship between the chatter mark and the vibration stability.
Toshiki HIROGAKI   +3 more
doaj   +1 more source

Online Analysis of Nonlinear Vibration Characteristics of Milling Chatter

open access: yesJournal of Harbin University of Science and Technology, 2018
In order to analyze the nonlinear dynamic behavior of the milling chatter,firstly to analyze the varying depths of cut during milling stationary vibration signal the vibration signal and bred flutter vibration signal nonlinear characteristics based on ...
WU Shi   +4 more
doaj   +1 more source

Chatter identification in turning process based on vibration analysis using Hilbert-Huang transform

open access: yesJournal of Mechanical Engineering and Sciences, 2020
In machining process, the increasing cutting depth is aimed to accelerate machining operations in a short time. However, the increasing cutting depth can cause chatter vibration at any time.
Agus Susanto   +4 more
doaj   +1 more source

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

open access: yes, 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   +3 more
core   +1 more source

State estimation based on image processing of chatter mark on end-milled surface by two-dimensional discrete Fourier transform

open access: yesNihon Kikai Gakkai ronbunshu, 2019
In this report, we propose a method to analyze the frequency and phase difference of self-excited vibration during cutting by using image analysis for the photographed image of the machined surface by end milling.
Nobutoshi OZAKI   +3 more
doaj   +1 more source

A Hybrid Chatter Detection Method Based on WPD, SSA, and SVM-PSO

open access: yesShock and Vibration, 2020
As a kind of self-excited vibrations, chatter vibration is extremely common in end milling, especially in high-speed cutting processes. It affects the machining accuracy of products and decreases the processing efficiency of machine tools.
Erhua Wang, Peng Yan, Jie Liu
doaj   +1 more source

Active Vibration Control for a CNC Milling Machine [PDF]

open access: yes, 2013
There is a requirement for improved three-dimensional surface characterisation and reduced tool wear when modern computer numerical control (CNC) machine tools are operating at high cutting velocities, spindle speeds and feed rates.
Longstaff, Andrew P.   +9 more
core   +1 more source

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