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Finite-Element Analysis of Forces in Drilling of Ti-Alloys at Elevated Temperature

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Abstract:

Demand for high-strength alloys in aerospace, marine and off-shore industries has grown significantly over last decades, primarily thanks to their high strength, light weight as well as good fatigue and corrosion-resistance properties. However, these materials are extremely difficult to machine with conventional machining methods. Hot machining is an alternative technique used by many researchers for cutting of hard-to-cut materials in turning and milling operations. In this assisted machining technique, an external heat source is used to reduce shear strength of the machined workpiece, enhancing material removal of such alloys. Drilling is one of the most important and basic operations for producing cylindrical holes in machined components. In this work, a three-dimensional finite-element (FE) model of drilling process is developed in a commercial FE software DEFORM 3D. A nonlinear temperature-dependent material behaviour is incorporated in numerical simulations. The effect of an external heat source on thrust forces and torque on a drill-bit was investigated with the developed FE model. Advantages of hot drilling in reducing thrust force and torque reduction are demonstrated.

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Info:

Periodical:

Solid State Phenomena (Volume 188)

Pages:

250-255

DOI:

https://doi.org/10.4028/www.scientific.net/SSP.188.250

Citation:

Cite this paper

Online since:

May 2012

Authors:

Riaz Muhammad, Naseer Ahmed, Yasir Maqbool Shariff, Vadim Silberschmidt

Keywords:

Conventional Drilling, Finite Element, Hot Drilling, Thrust Force, Ti Alloys, Torque

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References

[1] C. R. Dandekar, Y.C. Shin, J. Barnes, Machineability improvement of titanium alloy (Ti-6Al-4V) via LAM and hybrid machining, International Journal of Machine Tools and Manufacture. 50 (2010) 174-182.

DOI: 10.1016/j.ijmachtools.2009.10.013

Google Scholar

[2] M. Dhananchezian, M. P. Kumar, Cryogenic turning of the Ti-6Al-4V alloy with modified cutting tool inserts, Cryogenics. 51 (2011) 34-40.

DOI: 10.1016/j.cryogenics.2010.10.011

Google Scholar

[3] R. Muhammad, N. Ahmed, M. Demiral, A. Roy, V. V. Silberschmidt, Computational study of ultrasonically-assisted turning of Ti alloys, Advanced Materials Research, 223 (2011) 30-36.

DOI: 10.4028/www.scientific.net/amr.223.30

Google Scholar

[4] N. Ahmed, A.V. Mitrofanov, V.I. Babitsky, V.V. Silberschmidt, Analysis of material response to ultrasonic vibration loading in turning Inconel 718, Materials Science and Engineering A. 424 (2006) 318-325.

DOI: 10.1016/j.msea.2006.03.025

Google Scholar

[5] S. Sun, M. Brandt, M.S. Dargusch, Thermally enhanced machining of hard-to-machine materials-A review, International Journal of Machine Tools and Manufacture. 50 (2010) 663-680.

DOI: 10.1016/j.ijmachtools.2010.04.008

Google Scholar

[6] K. Uehara, M. Sakurai, H. Takeshita: Cutting performance of coated carbides in electric hot machining of low machinibility metals. 32 (1) (1983) 97-100.

DOI: 10.1016/s0007-8506(07)63369-1

Google Scholar

[7] R. Muhammad, M. Abid, N. Ahmed, V. Silberschmidt, 3D modelling of drilling process of AISI 1010 steel, Journal of Machining and Forming Technologies. 2 (3-4) (2010) 201-216.

Google Scholar

[8] M. Bono, J. Ni, A model for predicting the heat flow into the workpiece in dry drilling, Journal of Manufacturing Science and Engineering. 124 (2002) 773-777.

DOI: 10.1115/1.1511176

Google Scholar

[9] B. Ozcelik, E. Bagci, Experimental and numerical studies on the determination of twist drill temperature in dry drilling: A new approach, Materials and Design. 27 (2006) 920-927.

DOI: 10.1016/j.matdes.2005.03.008

Google Scholar

[10] DEFORMTM-3D, Ver 6.1, Scientific Forming Technology Corporation, Columbus, Ohio.

Google Scholar

[11] G. Johnson, W. Cook, Fracture Characteristics of three metals subjected to various strains, strain rates, temperatures and pressures, Engineering Fracture Mechanics. 2 (1985) 31-48.

DOI: 10.1016/0013-7944(85)90052-9

Google Scholar

[12] M. Calamaz, D. Coupard, F. Girot, A new material model for 2D numerical simulation of serrated chip formation when machining titanium alloy Ti–6Al–4V, International Journal of Machine Tools and Manufacture. 48 (2008) 275-288.

DOI: 10.1016/j.ijmachtools.2007.10.014

Google Scholar

[13] G. Shi, X. Deng, C. Shet, A finite element study of the effect of friction in orthogonal metal cutting, Finite Elements in Analysis & Design. 38 (2002) 863-883.

DOI: 10.1016/s0168-874x(01)00110-x

Google Scholar

[14] R. Muhammad, N. Ahmed, Y.M. Shariff, V.V. Silberschmidt, Effect of cutting conditions on temperature generated in drilling process: A FEA approach, Advanced Materials Research. 223 (2011) 240-246.

DOI: 10.4028/www.scientific.net/amr.223.240

Google Scholar

[15] H. Fassi, L. Bousschine, A. Chaaba, A. Elharif, Numerical simulation of orthogonal cutting by incremental elsto-plastic analysis and finite element methods, Journal of Materials Processing Technology. 141 (2003) 181-188.

DOI: 10.1016/s0924-0136(02)01018-x

Google Scholar

[16] T. Oezer, The influence of friction models on finite element simulations of machining, International journal of Machine Tools Manufacture. 46 (2006) 518-530.

DOI: 10.1016/j.ijmachtools.2005.07.001

Google Scholar

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