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TECHNICAL PAPERS

# Application of Finite Deformation Theory to the Development of an Orthogonal Cutting Model—Part II: Experimental Investigation and Model Validation

[+] Author and Article Information
Yuliu Zheng1

Department of Mechanical Engineering–Engineering Mechanics, Michigan Technological University, Houghton, MI 49931-1295

Xuefei Hu2

Department of Mechanical Engineering–Engineering Mechanics, Michigan Technological University, Houghton, MI 49931-1295

John W. Sutherland

Department of Mechanical Engineering–Engineering Mechanics, Michigan Technological University, Houghton, MI 49931-1295

1

Presently at Manufacturing R&D, Federal Mogul Corporation.

2

Presently at Global Engine Development-NA, Engine Systems, Caterpillar, Inc.

J. Manuf. Sci. Eng 128(3), 767-774 (Nov 14, 2005) (8 pages) doi:10.1115/1.2193556 History: Received January 06, 2005; Revised November 14, 2005

## Abstract

In Part 1 of this paper, a continuum mechanics model of the orthogonal cutting process was developed based on finite deformation theory. In this part of the paper, constitutive equations for O1 and L6 tool steels are developed using the results from split Hopkinson pressure bar tests. Statistically designed orthogonal cutting experiments are conducted to secure process results across a range of cutting conditions. The continuum mechanics model established in Part 1 of this paper is used to simulate all the cutting tests. All the model outputs are calculated and compared with the corresponding cutting experiment results. Good agreement is observed between the model predictions and the experimental results. The continuum mechanics model is successfully used to predict the cutting force, shear angle, and temperature.

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## Figures

Figure 1

Split Hopkinson pressure bar setup

Figure 4

The orthogonal cutting experimental setup

Figure 5

Cutting force comparison for O1 tool steel

Figure 2

Experimental and fitted constitutive equation behaviors for O1 and L6 tool steels

Figure 3

The extrapolated constitutive relationships for O1 and L6 steels

Figure 10

Shear angle comparisons for L6 tool steel

Figure 11

Temperature along a flowline at different cutting velocities

Figure 6

Cutting force comparison for L6 tool steel

Figure 7

Thrust force comparison for O1 tool steel

Figure 8

Thrust force comparison for L6 tool steel

Figure 9

Shear angle comparisons for O1 tool steel

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