scholarly journals A dynamic cutting force model for transverse orthogonal cutting of unidirectional carbon/carbon composites considering fiber distribution

2020 ◽  
Vol 251 ◽  
pp. 112668
Author(s):  
Chenwei Shan ◽  
Menghua Zhang ◽  
Yang Yang ◽  
Shengnan Zhang ◽  
Ming Luo
Keyword(s):  
Cutting Force ◽  
Orthogonal Cutting ◽  
Carbon Composites ◽  
Force Model ◽  
Fiber Distribution ◽  
Cutting Force Model ◽  
Dynamic Cutting Force

scholarly journals Experimental investigations of chatter and critical cutting conditions in turning

2021 ◽  
Author(s):  
Vipul Shah
Keyword(s):  
Cutting Force ◽  
Orthogonal Cutting ◽  
Experimental Results ◽  
Experimental Investigations ◽  
Force Model ◽  
Cutting Force Model ◽  
The Arts ◽  
Dynamic Cutting Force ◽  
Theoretical Predictions ◽  
Series Of Experiments

Vibration can cause problems when it occurs during machining, especially if it cannot be damped and continuous to increase, a phenomenon known as chatter. This thesis project focuses on reviewing the state-of-the-arts work in chatter research, identifying a reliable mechanistic dynamic cutting force model for orthogonal cutting operations when machining slender shafts, carrying out a series of experiments on uniform and stepped workpiece[s], and validating the theoretical predictions of chatter onset conditions against experimental results.

scholarly journals Experimental investigations of chatter and critical cutting conditions in turning

2021 ◽  
Author(s):  
Vipul Shah
Keyword(s):  
Cutting Force ◽  
Orthogonal Cutting ◽  
Experimental Results ◽  
Experimental Investigations ◽  
Force Model ◽  
Cutting Force Model ◽  
The Arts ◽  
Dynamic Cutting Force ◽  
Theoretical Predictions ◽  
Series Of Experiments

Vibration can cause problems when it occurs during machining, especially if it cannot be damped and continuous to increase, a phenomenon known as chatter. This thesis project focuses on reviewing the state-of-the-arts work in chatter research, identifying a reliable mechanistic dynamic cutting force model for orthogonal cutting operations when machining slender shafts, carrying out a series of experiments on uniform and stepped workpiece[s], and validating the theoretical predictions of chatter onset conditions against experimental results.

Improved dynamic cutting force modelling in micro milling of metal matrix composites part II: Experimental validation and prediction

2019 ◽  
Vol 234 (8) ◽  
pp. 1500-1515
Author(s):  
Zhichao Niu ◽  
Kai Cheng
Keyword(s):  
Cutting Force ◽  
Metal Matrix Composites ◽  
Cutting Forces ◽  
Metal Matrix ◽  
Micro Milling ◽  
Force Model ◽  
Matrix Composites ◽  
Cutting Force Model ◽  
Side Milling ◽  
Dynamic Cutting Force

The effects of cutting dynamics and the particles' size and density cannot be ignored in micro milling of metal matrix composites. This article presents the improved dynamic cutting force modelling for micro milling of metal matrix composites based on the previous analytical model. This comprehensive improved cutting force model, taking the influence of the tool run-out, actual chip thickness and resultant tool tip trajectory into account, is evaluated and validated through well-designed machining trials. A series of side milling experiments using straight flutes polycrystalline diamond end mills are carried out on the metal matrix composite workpiece under various cutting conditions. Subsequently, the measured cutting forces are compensated by a Kalman filter to achieve the accurate cutting forces. These are further compared with the predicted cutting forces to validate the proposed dynamic cutting force model. The experimental results indicate that the predicted and measured cutting forces in micro milling of metal matrix composites are in good agreement.

Modeling the Chip-Work Contact Force for Chip Breaking in Orthogonal Machining With a Flat-Faced Tool

1998 ◽  
Vol 120 (1) ◽  
pp. 49-56 ◽  
Author(s):  
B. K. Ganapathy ◽  
I. S. Jawahir
Keyword(s):  
Cutting Force ◽  
Contact Force ◽  
Cutting Forces ◽  
Metal Cutting ◽  
Orthogonal Cutting ◽  
Force Model ◽  
Two Dimensional ◽  
Cutting Force Model ◽  
Chip Breaking ◽  
Orthogonal Machining

The present tendency towards increased automation of metal cutting operations has resulted in a need to develop a model for the chip breaking process. Conventional cutting force models do not have any provision for the study of chip breaking since they assume a continuous mode of chip formation, where the contact action of the free-end of the chip is ignored in all analyses. The new cutting force model proposed in this work incorporates the contact force developed due to the free-end of the chip touching the workpiece, and is applicable to the study of two-dimensional chip breaking in orthogonal machining. Orthogonal cutting tests were performed to obtain two-dimensional chip breaking. The experimentally measured cutting forces show a good correlation with the estimated cutting forces using the model. Results show that the forces acting on the chip vary within a chip breaking cycle and help identify the chip breaking event.

Analysis of Cutting Forces in Precision Turning Based on Oblique Cutting Model

2010 ◽  
Vol 97-101 ◽  
pp. 1961-1964 ◽  
Author(s):  
Wei Guo Wu ◽  
Gui Cheng Wang ◽  
Chun Gen Shen
Keyword(s):  
Cutting Force ◽  
Cutting Forces ◽  
Orthogonal Cutting ◽  
Differential Method ◽  
Force Model ◽  
Cutting Force Model ◽  
Linear Change ◽  
Oblique Cutting ◽  
Precision Turning ◽  
Cutting Model

In this work, the prediction and analysis of cutting forces in precision turning operations is presented. The model of cutting forces is based on the oblique cutting force model which was rebuilt by two coordinate conversions from the orthogonal cutting model. Then the cutting field in precision turning was divided into two fields which are characterized as curve change and linear change on cutter edge and they were modeled respectively. Cutting field of cutter nose was modeled by differential method and its cutting force distribution is predicted by the proposed method. The predicted results for the cutting forces are in agreement with the experimental results under a variety of operation variables, including changes in the depths of cut and in the feedrate.

Establishment and verification of a dynamic cutting force model for metal bandsawing

2016 ◽  
Vol 90 (9-12) ◽  
pp. 2703-2712
Author(s):  
Jing Ni ◽  
Lu Li ◽  
M. S. H. Al-Furjan ◽  
Jing Xu ◽  
Xiao Yang
Keyword(s):  
Cutting Force ◽  
Force Model ◽  
Cutting Force Model ◽  
Dynamic Cutting Force
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