Influence of Cutting Edge Radius in Micromachining AISI D2

Abstract:

Chip formation is a dynamic process that is often non linear in nature. A chip may not form when the depth of cut is less than a minimum chip thickness. This paper presents an investigation of cutting edge radius effect on micromachining AISI D2 tool steel via simulation. The chip growth, chip formation and material deformation mechanism was investigated using commercial finite element analysis software. A model is developed with consideration of the arbitrary LagrangianEulerian (ALE) method. The chip growth, chip formation and material deformation was investigate under three criteria such as a/r<1, a/r>1 and a/r=1. The model showed that the chip is formed at a/r >1 while material extrusion performed under a/r<1.

• Periodical: Applied Mechanics and Materials (Volume 393)
• Pages: 253-258
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.393.253
• Online since: September 2013
• Authors: J.B. Saedon, A. Hakim A. Halim, H. Husain, M.S. Meon, Muhamad Fauzi Othman
• Keywords: Chip Formation, Cutting Edge Radius, Finite Element Analysis (FEA), Minimum Chip Thickness

References

[1] Fan, W. and X. Liu, Finite Element Analysis of High Speed Cutting Tool. Applied Mechanics and Materials, 2013. Vols. 268-270: pp.496-499.

DOI: 10.4028/www.scientific.net/amm.268-270.496

[2] Tansel, I., O. Rodriguez, M. Trujillo, E. Paz, and W. Li, Micro-end-milling - I. Wear and breakage. International Journal of Machine Tools and Manufacture, 1998. 38(12): pp.1419-1436, ISSN: 0890-6955.

DOI: 10.1016/s0890-6955(98)00015-7

[3] Saedon, J.B., S.L. Soo, D.K. Aspinwall, A. Barnacle, and N.H. Saad, Prediction and Optimization of Tool Life in Micromilling AISI D2 (∼62 HRC) Hardened Steel. Procedia Engineering, 2012. 41(0): pp.1674-1683.

DOI: 10.1016/j.proeng.2012.07.367

[4] Peiyuan, L., A.M. Hoogstrate, J.A.J. Oosterling, H.H. Langen, and R.M. Schmidt, Experimental validation of micro endmill design for hard milling application. Proceedings of the 3rd International CIRP High Performance Cutting Conference, 2008. 1: pp.69-78.

[5] Saedon, J.B., S.L. Soo, D.K. Aspinwall, and A. Barnacle, Micro-milling of hardened AISI D2 tool steel. Advanced Materials Research, 2012. 445: pp.62-67.

DOI: 10.4028/scientific5/amr.445.62

[6] Woon, K.S., M. Rahman, F.Z. Fang, K.S. Neo, and K. Liu, Investigations of tool edge radius effect in micromachining: A FEM simulation approach. Journal of Materials Processing Technology, 2008. 195(1-3): pp.204-211, ISSN: 0924-0136.

DOI: 10.1016/j.jmatprotec.2007.04.137

[7] Liu, X., R.E. Devor, and S.G. Kapoor, Model-Based Analysis of the Structure Generation in Microendmilling—Part II: Experimental Validation and Analysis. ASME Journal of Manufacturing Science Engineering, 2007. 129(3): pp.461-469, ISSN: 10871357.

DOI: 10.1115/1.2716706

[8] Kim, C.J., J.R. Mayor, and J. Ni, A Static Model of Chip Formation in Microscale Milling. Journal of Manufacturing Science and Engineering, Transaction of the ASME, 2004. 126: pp.710-718, ISSN: 1087-1357.

DOI: 10.1115/1.1813475