A FEM and Experimental Study of Chip Formation in Orthogonal Cutting of Superalloy GH80A

Jun Li Li; Ming Chen; Bin Rong

doi:10.4028/www.scientific.net/MSF.626-627.663

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HomeMaterials Science ForumMaterials Science Forum Vols. 626-627A FEM and Experimental Study of Chip Formation in...

A FEM and Experimental Study of Chip Formation in Orthogonal Cutting of Superalloy GH80A

Abstract:

The nickel-based superalloy GH80A has been widely used in kinds of aeronautical key structures because of its high yield stress and anti-fatigue performance at high temperature. However, it is also a typical difficult-to-cut material. In order to improve cutting process, kinds of methods have been applied to study cutting process including experimental approach and finite element method (FEM). In this paper, a comparison of chip formation is carried out between traditional Johnson-Cook (JC) model and Isotropic model. Besides, effects of tool rake angle and friction coefficient on chip formation are investigated by Isotropic model. FEM predicated results such as stress and cutting temperature are also analyzed. Relative turning tests are performed and comparison of chip morphology between FEM and experiment is carried out.

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Advances in Materials Manufacturing Science and Technology XIII Volume I

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Periodical:

Materials Science Forum (Volumes 626-627)

Pages:

663-668

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.626-627.663

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Online since:

August 2009

Authors:

Jun Li Li, Ming Chen, Bin Rong

Keywords:

Experiment, Finite Element Model (FEM), Material Model, Nickel-Based Superalloy, Saw-Tooth Chip, Turning

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