An improved full-discretization method for chatter stability prediction

2018 ◽  
Vol 96 (9-12) ◽  
pp. 3503-3510 ◽  
Author(s):  
Yuebang Dai ◽  
Hongkun Li ◽  
Baitian Hao
Keyword(s):  
Discretization Method ◽  
Stability Prediction ◽  
Chatter Stability ◽  
Full Discretization ◽  
Chatter Stability Prediction

Third-order updated full-discretization method for milling stability prediction

2017 ◽  
Vol 92 (5-8) ◽  
pp. 2299-2309 ◽  
Author(s):  
Zhenghu Yan ◽  
Xibin Wang ◽  
Zhibing Liu ◽  
Dongqian Wang ◽  
Li Jiao ◽  
...  
Keyword(s):  
Discretization Method ◽  
Stability Prediction ◽  
Third Order ◽  
Full Discretization ◽  
Milling Stability

Mechanics and Dynamics of Multifunctional Tools

2015 ◽  
Vol 137 (1) ◽  
Author(s):  
Min Wan ◽  
Zekai Murat Kilic ◽  
Yusuf Altintas
Keyword(s):  
Time Domain ◽  
Prediction Models ◽  
Chip Thickness ◽  
Combined Processes ◽  
Multiple Delays ◽  
Stability Prediction ◽  
Chatter Stability ◽  
Regenerative Effect ◽  
Hole Making ◽  
Chatter Stability Prediction

The mechanics and dynamics of the combined processes are presented for multifunctional tools, which can drill, bore, and chamfer holes in one operation. The oblique cutting forces on each cutting edge with varying geometry are modeled first, followed by their transformations to tangential, radial, and axial directions of the cutter. The regenerative effect of lateral and torsional/axial vibrations is considered in predicting the dynamic chip thickness with multiple delays due to distribution of cutting edges on the cutter body. The lateral and torsional/axial chatter stability of the complete hole making operation is predicted in semidiscrete time domain. The proposed static cutting force and chatter stability prediction models are experimentally proven for two different multifunctional tools in drilling Aluminum Al7050 and Steel AISI1045.

Model-based chatter stability prediction for high-speed spindles

2007 ◽  
Vol 47 (7-8) ◽  
pp. 1176-1186 ◽  
Author(s):  
V. Gagnol ◽  
B.C. Bouzgarrou ◽  
P. Ray ◽  
C. Barra
Keyword(s):  
High Speed ◽  
Stability Prediction ◽  
Chatter Stability ◽  
Model Based ◽  
Chatter Stability Prediction

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

2020 ◽  
Vol 2020 ◽  
pp. 1-16
Author(s):  
Chao Huang ◽  
Wen-An Yang ◽  
Xulin Cai ◽  
Weichao Liu ◽  
YouPeng You
Keyword(s):  
Metal Removal ◽  
Removal Rate ◽  
Discretization Method ◽  
Chatter Stability ◽  
Computationally Efficient ◽  
Third Order ◽  
Regenerative Chatter ◽  
Full Discretization ◽  
Milling Operations ◽  
Comparison Results

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 machine. Various full-discretization methods have been designed for predicting regenerative chatter stability. The main problem of such methods is that they can predict the regenerative chatter stability but do not efficiently determine stability lobe diagrams (SLDs). Using third-order Newton interpolation and third-order Hermite interpolation techniques, this study proposes a straightforward and effective third-order full-discretization method (called NI-HI-3rdFDM) to predict the regenerative chatter stability in milling operations. Experimental results using simulation show that the proposed NI-HI-3rdFDM can not only efficiently predict the regenerative chatter stability but also accurately identify the SLD. The comparison results also indicate that the proposed NI-HI-3rdFDM is very much more accurate than that of other existing methods for predicting the regenerative chatter stability in milling operations. A demonstrative experimental verification is provided to illustrate the usage of the proposed NI-HI-3rdFDM to regenerative chatter stability prediction. The feature of accurate computing makes the proposed NI-HI-3rdFDM more adaptable to a dynamic milling scenario, in which a computationally efficient and accurate chatter stability method is required.

Consolidated chatter stability prediction model considering material removing and ploughing processes

2019 ◽  
Vol 59 ◽  
pp. 120-133 ◽  
Author(s):  
Takehiro Hayasaka ◽  
Hongjin Jung ◽  
Kensuke Azuma ◽  
Eiji Shamoto
Keyword(s):  
Prediction Model ◽  
Stability Prediction ◽  
Chatter Stability ◽  
Chatter Stability Prediction
Sign in / Sign up

Export Citation Format

Share Document