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A FEM and Experiment Study on High Speed Machining of Nickel-Based Superalloy GH4169

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Abstract:

As a typical difficult-to-cut material, the nickel-based superalloy GH4169 has been used in many kinds of aeronautical key structures and turbine components because of its high yield stress and anti-fatigue performance even in high temperature. In this paper, finite element method (FEM) is introduced to study the saw-tooth chip formation in detail. By the way of Lagrange approach, adiabatic shear band (ASB) is simulated and the chip forming mechanism is interpreted by adiabatic shearing theory via the comparison of two models, one of which has a failure criterion and another not. The comprehensive comparison and analysis of chip morphology between simulation and experiment are also presented in this paper.

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Periodical:

Key Engineering Materials (Volumes 375-376)

Pages:

82-86

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.375-376.82

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Online since:

March 2008

Authors:

Dong Jin Zhang, Chen Wang, Gang Liu, Ming Chen

Keywords:

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

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© 2008 Trans Tech Publications Ltd. All Rights Reserved

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