Results 21 to 30 of about 12,361 (269)

The countermeasure against forced and regenerative chatter in end milling process with multiple dynamic absorbers

open access: yesNihon Kikai Gakkai ronbunshu, 2014
The present study investigates the effect of multiple dynamic absorbers on both forced chatter and regenerative chatter. The stability lobe of regenerative chatter is widely employed to find the axial depth of cut and the spindle speed in which ...
Yutaka NAKANO   +2 more
doaj   +1 more source

Ensemble-Based Semi-Supervised Learning for Milling Chatter Detection

open access: yesMachines, 2022
Chatter is one of the most deleterious phenomena during the machining process, and leads to a low quality of workpiece surface, a noisy workplace, and decreases in tool and machine life.
Weichao Liu, Pengyu Wang, Youpeng You
doaj   +1 more source

Chatter Stability of Machining Operations [PDF]

open access: yesJournal of Manufacturing Science and Engineering, 2020
AbstractThis paper reviews the dynamics of machining and chatter stability research since the first stability laws were introduced by Tlusty and Tobias in the 1950s. The paper aims to introduce the fundamentals of dynamic machining and chatter stability, as well as the state of the art and research challenges, to readers who are new to the area. First,
Altintas, Yusuf   +4 more
openaire   +5 more sources

Proposal of novel chatter stability indices of spindle speed variation based on its chatter growth characteristics [PDF]

open access: yes, 2020
Chatter is one of the most critical problems that causes poor surface quality and restriction of machining efficiency. Spindle speed variation (SSV) is a well-known technique for suppression of regenerative chatter. However, in the authors’ understanding,
Jung, Hongjin   +3 more
core   +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

Proposal of novel spindle speed variation profile with constant acceleration rate for improvement of chatter stability [PDF]

open access: yes, 2021
Spindle speed variation (SSV) is one of the effective methods which suppresses regenerative chatter. However, regenerative chatter can grow even if SSV is applied. In the previous work, the chatter growth characteristics in SSV were clarified.
Jung, Hongjin   +3 more
core   +1 more source

Chatter in manufacturing system: Prediction and detection [PDF]

open access: yesTehnika
Chatter is a phenomenon that periodically occurs in machining systems. Its occurrence in machining processes excites the tool and other elements of the machining system, creating "chatter marks" on the workpiece surface, which affects the quality of the ...
Vorkapić Nikola M.   +2 more
doaj   +1 more source

An Efficient Third-Order Full-Discretization Method for Prediction of Regenerative Chatter Stability in Milling

open access: yesShock and Vibration, 2020
The prediction of regenerative chatter stability has long been recognized as an important issue of concern in the field of machining community because it limits metal removal rate below the machine’s capacity and hence reduces the productivity of the ...
Chao Huang   +4 more
doaj   +1 more source

Chatter Vibration Comparison Between Normal Helix Angle and Variable Helix Angle in End Milling Process Based on Spectrum Analysis

open access: yesRekayasa Mesin, 2020
Chatter vibration in machining processes is often found in cutting processes which will decrease the machining efficiency and the surface quality of the products. Chatter is a relative vibration of the cutting tool and workpiece caused by the fluctuation
Achmad As'ad Sonief   +3 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

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