Results 11 to 20 of about 667 (180)

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

Deep learning for the detection of machining vibration chatter

open access: yesAdvances in Engineering Software, 2023
Most of the work on chatter detection is based on laboratory machining tests, thus without the constraints of noise, the variety of situations to be managed in the industry, and the uncertainties on the parameters (sensor position, tool engagement, and sometimes even spindle rotation frequency).
Kounta, Cheick Abdoul Kadir A.   +3 more
openaire   +3 more sources

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

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

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

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

Influence of Chatter of VMC Arising During End Milling Operation and Cutting Conditions on Quality of Machined Surface

open access: yesInternational Islamic University Malaysia Engineering Journal, 2012
Machine tool chatter is a dynamic instability of the cutting process. Chatter results in poor part surface finish, damaged cutting tool, and an irritating and unacceptable noise.
A.K.M.N. Amin, M.A. Rizal, and M. Razman
doaj   +1 more source

Chatter Identification of Face Milling Operation via Time-Frequency and Fourier Analysis

open access: yesInternational Journal of Automation and Smart Technology, 2016
Chatter is generally defined as self-generated vibrations from the interaction between tool and workpiece.  It is the most critical vibration in machining operations and can decrease the surface quality and cause the premature tool wear.
Ching-Chih Wei   +2 more
doaj   +1 more source

The Bivariate Empirical Mode Decomposition and Its Contribution to Grinding Chatter Detection

open access: yesApplied Sciences, 2017
Grinding chatter reduces the long-term reliability of grinding machines. Detecting the negative effects of chatter requires improved chatter detection techniques.
Huanguo Chen   +6 more
doaj   +1 more source

On the occurrence of regenerative chatter vibrations.

open access: yesTRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series C, 1986
Cutting forces and deflections of a workpiece are measured from the start of cutting operations and one of the important physical causes of regenerative chatter is found to be a small change of the cutting force that necessarily exists, even in a stable cutting condition.
OTA, Hiroshi   +2 more
openaire   +3 more sources

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