Results 11 to 20 of about 2,750,886 (215)

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   +2 more sources

In-Process Chatter Detection in Surface Grinding

open access: yesMATEC Web of Conferences, 2015
The chatter causes the poor surface finish during the surface grinding. It is therefore necessary to monitor the chatter during the process. Hence, this research has proposed the in-process chatter detection in the surface grinding process by utilizing ...
Tangjitsitcharoen Somkiat   +1 more
doaj   +2 more sources

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

Improving generalisation and accuracy of on-line milling chatter detection via a novel hybrid deep convolutional neural network [PDF]

open access: yes, 2023
Unstable chatter seriously reduces the quality of machined workpiece and machining efficiency. In order to improve productivity, on-line chatter detection has attracted much interest in the past decades.
Liao, Zhirong   +13 more
core   +1 more source

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

Chatter Monitoring of Machining Center Using Head Stock Structural Vibration Analyzed with a 1D Convolutional Neural Network

open access: yesSensors, 2022
Real-time chatter detection is crucial for the milling process to maintain the workpiece surface quality and minimize the generation of defective parts. In this study, we propose a new methodology based on the measurement of machine head stock structural
Kwanghun Jeong   +4 more
doaj   +1 more source

Intelligent integrated monitoring system for lathe equipment

open access: yesJournal of Low Frequency Noise, Vibration and Active Control, 2021
During the production process of the components of precision machines, a stable quality is the key consideration of the vendors. During the production process of metal parts, a thermal expansion error of the spindle will occur due to long time operations,
Bo-Lin Jian   +2 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

Fault detection for DFIG based on sliding mode observer of new reaching law [PDF]

open access: yesBulletin of the Polish Academy of Sciences: Technical Sciences, 2021
For fault detection of doubly-fed induction generator (DFIG), in this paper, a method of sliding mode observer (SMO) based on a new reaching law (NRL) is proposed.
RuiQi Li   +6 more
doaj   +1 more source

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