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Title: Milling force prediction using a dynamic shear length model
Authors: Li, H.Z.
Li, X.P. 
Keywords: Cutting forces
Predictive machining theory
Shear length
Theoretical modelling
Issue Date: Jan-2002
Citation: Li, H.Z., Li, X.P. (2002-01). Milling force prediction using a dynamic shear length model. International Journal of Machine Tools and Manufacture 42 (2) : 277-286. ScholarBank@NUS Repository.
Abstract: Modelling of cutting forces in milling is often needed in machining automation. In this paper, a new method for the determination of the cutting forces in face milling is presented, which applies a predictive machining theory originally developed for orthogonal cutting to milling operations, with a dynamic shear length model developed and incorporated. The proposed dynamic shear length model is developed based on the analysis for the true tooth trajectories of a milling cutter, taking into account of the characteristic wavy surface effects in milling. The prediction for the cutting forces is carried out at each step of the angular increment of cutter rotation from input data of fundamental workpiece material properties, tool geometry and cutting conditions. Cutting forces at a cutter tooth can be predicted once the shear angle, shear length, shear plane area, and the shear flow stress along the shear length have been determined. The milling force prediction using the dynamic shear length model is verified through milling experimental tests. The sensitivity of the difference between the static and dynamic shear length models with respect to the feed per tooth and the cutter diameter is discussed. © 2001 Elsevier Science Ltd. All rights reserved.
Source Title: International Journal of Machine Tools and Manufacture
ISSN: 08906955
DOI: 10.1016/S0890-6955(01)00098-0
Appears in Collections:Staff Publications

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