Title: Experimental and theoretical investigation of AISI D2 hardened steel machining with varying nose radius CBN tools
Authors: T.H. Lee, Philip Mathew
Addresses: School of Mechanical and Manufacturing Engineering, The University of New South Wales, Sydney NSW 2052, Australia. ' School of Mechanical and Manufacturing Engineering, The University of New South Wales, Sydney NSW 2052, Australia
Abstract: This paper describes an experimental and theoretical investigation of the AISI D2 hardened steel. The hardened material (over 60 HRc) is machined using CBN tools with different radii to obtain chips of various sizes for different cutting conditions. The tool geometry was set at −7° and a 45° approach angle was used. The cutting performance was measured by taking into account the cutting forces, chip thicknesses, shear angle and the secondary deformation zones. In addition, a theoretical model is developed by taking into account the flow stress properties of the AISI D2 steel available in the literature for use with the Oxley machining approach. A comparison of the predicted and experimental results indicates good agreement.
Keywords: AISI D2 hardened steel; CBN tools; hard turning; Oxley machining theory; work material properties; cutting forces; chip thickness; shear angle; secondary deformation; flow stress.
International Journal of Machining and Machinability of Materials, 2007 Vol.2 No.2, pp.254 - 269
Published online: 28 May 2007 *Full-text access for editors Full-text access for subscribers Purchase this article Comment on this article