Results 31 to 40 of about 37,684 (309)

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

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   +2 more sources

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

Regenerative chatter by teeth allocated in the cutting direction with position-dependent modal displacement ratios [PDF]

open access: yes, 2019
Cutters with high flexibility, e.g. side-and-face cutters and band saw cutters, are widely used in industries for finishing of narrow and deep grooves or parting operations.
Xu, Yang   +4 more
core   +1 more source

A Comparison of Wavelet Packet, Wavelet Leaders Multifractal, and p-Leader Multifractal Method in Chatter Detection [PDF]

open access: yes, 2023
An efficient stability analysis contributes to the improvement of machining stability and chatter suppression. First, this paper presents three chatter detection approaches that were developed on the application of wavelet transforms.
Wang, Y   +4 more
core   +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

Generalized design method of highly-varied-helix end mills for suppression of regenerative chatter in peripheral milling [PDF]

open access: yes, 2017
Peripheral finishing of hardened steel by milling has recently been introduced to the machining field, but often causes severe chatter vibration due to high specific cutting force and low stiffness of slender end mills.
Shamoto, Eiji   +2 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

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