Multi-Scale Fe Modeling Inconel718 Machining Process and Crack Initiation of Brittle Particle

Abstract:

nconel718 is particle reinforced metal matrix composites widely applied in important fields. To evaluate the impact of particles on the machined subsurface in Inconel718 during high-speed machining operation, a multi-scale orthogonal cutting finite element (FE) model is established. A cohesive element technique is adopted to predict particle crack initiation process. The multi-scale FE model is validated with experimental data in terms of cutting forces and chip morphology. The simulation reveals that particle has a great influence on surface roughness and the feed force when particles are located in the sub-surface within the depths of 30μm, and the cutting process has less effect on the particle crack initiation when the particles in the depths of more than 40μm or deeper. The interaction effects generated from particle sizes in the same depth are investigated on the cutting process and particle crack initiation.

• Periodical: Advanced Materials Research (Volume 500)
• Pages: 574-579
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.500.574
• Online since: April 2012
• Authors: Xiao Jin Xu, Li Qiang Ding, Xue Ping Zhang
• Keywords: Brittle Particle, Crack Initiation, Finite Element Analysis (FEA), Inconel 718, Multi-Scale

References

[1] Sandvik Coromant, in: Application Guide Heat Resistant Super Alloys, US, (2007).

[2] Santosh, in: Experimental investigations into the carbide cracking phenomenon on Inconel718 superalloy material. Proceedings of the ASME International Manufacturing Science and Engineering Conference, (2009), pp.33-39.

DOI: 10.1115/msec2009-84085

[3] S.L. Sooa , D.K. Aspinwall, R.C. Dewesa, in: 3D FE modeling of the cutting of Inconel718. Journal of Materials Processing Technology, Vol. 150, (2004), pp.116-123.

[4] E. Uhlmann, in: Finite Element Modeling and Cutting Simulation of Inconel718. Annals of the CIRP, Vol. 56, (2007), pp.61-64.

DOI: 10.1016/j.cirp.2007.05.017

[5] Sun, Chen, in: Multi-scale simulation on nanometric cutting of single crystal copper. Journal of Engineering Manufacture, Vol. 220, (2006), pp.1217-1222.

[6] Shiari, Miller, R.E., Klug, in: Multi-scale simulation of material removal processes at the nanoscale. Journal of the Mechanics and Physics of Solids, Vol. 55, (2007), pp.2384-2405.

DOI: 10.1016/j.jmps.2007.03.018

[7] Y.B. Guo, S. Anurag, in: Finite element modeling of random multiphase materials for micromachining. Proceedings of IMECE, (2007), pp.509-515.

DOI: 10.1115/imece2007-43848

[8] Yu Long, Changsheng Guo, in: Multi-phase FE model for machining Inconel718. Proceedings of the ASME International Manufacturing Science and Engineering Conference, (2010), pp.263-269.

[9] G.R. Johnson, W.H. Cook, in: A constitutive model and data for metals subjected to large strains, strain rates and high temperatures. Proceedings of the Seventh International Symposium on Ballistics, USA, (1983).

[10] G.R. Johnson, W.H. Cook, in: Fracture characteristics of three metals subjected to various strains, strain rates, temperatures and pressures. Engineering Fracture Mechanics, Vol. 21, (1985), pp.31-48.

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

[11] J. Michael Pereira, Bradley, A. Lerch, in: Effects of heat treatment on the ballistic impact properties of Inconel718 for jet engine fan containment applications. International Journal of Impact Engineering, Vol. 25, (2001), pp.715-733.

DOI: 10.1016/s0734-743x(01)00018-5

[12] G.E., Hollox, in: Microstructure and mechanic l behavior of carbides. Materials Science and Engineering, (1968), pp.121-137.