TY - JOUR
T1 - Identification of shearing and ploughing cutting constants from average forces in ball-end milling
AU - Wang, J. J.
AU - Zheng, C. M.
N1 - Funding Information:
The authors gratefully acknowledge the financial support from National Science Council of Taiwan through Grant No. NSC89-2212-E-006-074.
Copyright:
Copyright 2008 Elsevier B.V., All rights reserved.
PY - 2002/5
Y1 - 2002/5
N2 - This paper presents an analytical model for the direct identification of global shearing and ploughing cutting constants from measured average cutting forces in ball-end milling. This model is based on the linear decomposition of elemental local cutting forces into a shearing component and a ploughing component. Then, a convolution integral approach is used to obtain the average cutting forces leading to a concise and explicit expression for the global shearing and ploughing cutting constants in terms of axial depth of cut, cutter radius and average milling forces. The model is verified by comparisons with an existing force model of variable cutting coefficients. Cutting constants are identified through milling experiments and the prediction of cutting forces from identified cutting constants coincides with the experimental measurements. A model for identifying the lumped shearing constants is obtained as a subset of the presented dual mechanism model. Experimental results indicate that a model with dual-mechanism cutting constants predicts the ball-end milling forces with better accuracy than the lumped force model.
AB - This paper presents an analytical model for the direct identification of global shearing and ploughing cutting constants from measured average cutting forces in ball-end milling. This model is based on the linear decomposition of elemental local cutting forces into a shearing component and a ploughing component. Then, a convolution integral approach is used to obtain the average cutting forces leading to a concise and explicit expression for the global shearing and ploughing cutting constants in terms of axial depth of cut, cutter radius and average milling forces. The model is verified by comparisons with an existing force model of variable cutting coefficients. Cutting constants are identified through milling experiments and the prediction of cutting forces from identified cutting constants coincides with the experimental measurements. A model for identifying the lumped shearing constants is obtained as a subset of the presented dual mechanism model. Experimental results indicate that a model with dual-mechanism cutting constants predicts the ball-end milling forces with better accuracy than the lumped force model.
UR - http://www.scopus.com/inward/record.url?scp=0036568613&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0036568613&partnerID=8YFLogxK
U2 - 10.1016/S0890-6955(02)00002-0
DO - 10.1016/S0890-6955(02)00002-0
M3 - Article
AN - SCOPUS:0036568613
VL - 42
SP - 695
EP - 705
JO - International Journal of Machine Tool Design & Research
JF - International Journal of Machine Tool Design & Research
SN - 0890-6955
IS - 6
ER -