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

Abstract:

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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.

Info:

Periodical:

Materials Science Forum (Volumes 626-627)

Edited by:

Dongming Guo, Jun Wang, Zhenyuan Jia, Renke Kang, Hang Gao, and Xuyue Wang

Pages:

663-668

DOI:

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

Citation:

J. L. Li et al., "A FEM and Experimental Study of Chip Formation in Orthogonal Cutting of Superalloy GH80A", Materials Science Forum, Vols. 626-627, pp. 663-668, 2009

Online since:

August 2009

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Price:

$35.00

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