Results 11 to 20 of about 80,859 (280)

Extraction and Assessment of Features Using Shannon Entropy and Rényi Entropy for Chatter Detection in Micro Milling [PDF]

Micromachines
Chatter is a common phenomenon in micromachining processes that adversely affects machining quality, reduces tool life, and generates excessive noise that contributes to environmental pollution.
Zehui Zheng, Xiubing Jing, Bowen Song, Xiaofei Song, Yun Chen, Huaizhong Li   +5 more
doaj   +2 more sources

Influence of different position modal parameters on milling chatter stability of orthopedic surgery robots [PDF]

Scientific Reports
This research is dedicated to exploring the dynamics of milling chatter stability in orthopedic surgery robots, focusing on the impact of position modal parameters on chatter stability.
Heqiang Tian, Bo Pang, Junqiang Liu, Debao Meng, Xiaoqing Dang   +4 more
doaj   +2 more sources

Multi-modal denoised data-driven milling chatter detection using an optimized hybrid neural network architecture [PDF]

Scientific Reports
Chatter, a type of self-excited vibration, deteriorates surface quality and reduces tool life and machining efficiency. Chatter detection serves as an effective approach to achieve stable cutting.
Haining Gao, Haoyu Wang, Hongdan Shen, Shule Xing, Yong Yang, Yinlin Wang, Wenfu Liu, Lei Yu, Mazhar Ali, Imran Ali Khan   +9 more
doaj   +2 more sources

Milling chatter recognition based on dynamic and wavelet packet decomposition [PDF]

Mechanical Sciences, 2022
In metal milling, especially in the machining of low-stiffness workpieces, chatter is a key factor affecting many aspects such as surface quality, machining efficiency, and tool life.
M. Xie, X. Yu, X. Yu, Z. Ren, Y. Li
doaj   +1 more source

Prediction, detection, and suppression of regenerative chatter in milling

Advances in Mechanical Engineering, 2022
In metal cutting processing, especially in the processing of low-rigidity workpieces, chatter is a key factor affecting many aspects such as surface quality, processing efficiency and tool life.
Bo Liu, Changfu Liu, Xinli Yu, Yang Zhou, Daohai Wang   +4 more
doaj   +1 more source

GA-PE-VMD and MSE Methods for Milling Chatter Feature Extraction of Thin-walled Parts

Journal of Harbin University of Science and Technology, 2023
In the high-speed milling of aviation parts, due to the low stiffness of thin-walled structure, it is easy to produce chatter. Chatter leads to poor surface quality, dimensional error and reducing the service life of tools and machines.Therefore, a ...
WANG Hanbin, LI Maoyue, LIU Xianli, WANG Zhixue, MENG Boyang   +4 more
doaj   +1 more source

An analytical design method for milling cutters with nonconstant pitch to increase stability, part 2: Application [PDF]

, 2003
Chatter stability in milling can be improved significantly using variable pitch cutters. The pitch angles can be optimized for certain chatter frequency and spindle speed ranges using the analytical method presented in the first part of this two-part ...
Budak, Erhan
core   +4 more sources

Finite Element Analysis and Experimental Investigation of Tool Chatter in Ultra-Precision Diamond Micro-Milling Process

Applied Sciences, 2022
Ultra-precision milling with an aerostatic high-speed spindle and a single-crystal diamond micro-tool is promising for the fabrication of miniaturized complex parts.
Haijun Zhang, Shijin Lu, Chunyu Zhang, Guo Li, Fei Teng, Junjie Zhang, Tao Sun   +6 more
doaj   +1 more source

Verification of pattern formation mechanism using voxel model and estimation accuracy for inverse analysis of vibration phenomenon using two-dimensional discrete Fourier transform of end mill chatter mark

Nihon Kikai Gakkai ronbunshu, 2021
The vibration generated at the contact point between a tool blade and a machined surface during cutting significantly influences the generation mechanism of regenerated chatter vibration.
Nobutoshi OZAKI, Haruki MINETAKA, Shota MATSUI, Toshiki HIROGAKI, Eiichi AOYAMA   +4 more
doaj   +1 more source

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

Nihon 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, Hiroki TAKAHARA, Kengo KAWAI   +2 more
doaj   +1 more source