Time Dependent Behavior Analysis of Inconel 718 in High Speed Grinding Process

Abstract:

The time dependent behavior of grinding is expressed as the change of process output measures as a function of time during grinding. Although the wheel capability will be restored by dressing, the time dependent behavior of grinding during one dressing skip is determinant on the grinding quality variation in terms of surface integrity and workpiece geometric accuracy. Therefore, understanding of grinding time dependent behavior in relation with the wheel-workpiece microscopic interaction is critical for wheel and process development to achieve stable grinding processes. In this paper, the high speed grinding of inconel 718 with cBN grinding wheels is carried out. The time dependent behavior is recorded to represent the characteristic features. And the microscopic wheel topography is measured under SEM throughout the whole grinding process so as to reveal the root cause for the time dependent behavior and its impact on the workpiece quality variation.

• Periodical: Materials Science Forum (Volumes 836-837)
• Pages: 56-63
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.836-837.56
• Online since: January 2016
• Authors: Geng Zhi, Xue Kun Li*, Yi Ming Rong
• Keywords: CBN, Grinding, Superalloy, Time Dependent Behavior

References

[1] W. Ding, J. Xu, Z. Chen, H. Su, Y. Fu, Grindability and surface integrity of cast nickel-based superalloy in creep feed grinding with brazed CBN abrasive wheels. Chinese Journal of Aeronautics, 23(2010): 501-510.

DOI: 10.1016/s1000-9361(09)60247-8

[2] J. Webster, M. Tricard, Innovations in abrasive products for precision grinding. CIRP Annals - Manufacturing Technology, 53(2004): 597-617.

DOI: 10.1016/s0007-8506(07)60031-6

[3] N. Kawagoishi, Q. Chen, E. Kondo, M. Goto, H. Nisitani, Influence of cubic boron nitride grinding on the fatigue strengths of carbon steels and a nickel-base superalloy. Journal of Materials Engineering and Performance, 8(1999): 152-158.

DOI: 10.1361/105994999770346981

[4] M.N. Kumar, S.K. Subbu, P.V. Krishna, A. Venugopal, Vibration Assisted Conventional and Advanced Machining: A Review. Procedia Engineering, 97(2014): 1577-1586.

DOI: 10.1016/j.proeng.2014.12.441

[5] C. Guo, Z. Shi, H. Attia, D. McIntosh, Power and wheel wear for grinding nickel alloy with plated CBN wheels. Annals of the CIRP, 56(2007): 343-346.

DOI: 10.1016/j.cirp.2007.05.079

[6] K. Subramanian, Measurement and analysis of grinding processes. Abrasives Magazine, 5(1999): 1-6.

[7] J.F.G. Oliveira, E.J. Silva, C. Guo, F. Hashimoto, Industrial challenges in grinding. CIRP Annals - Manufacturing Technology, 58(2009): 663-680.

DOI: 10.1016/j.cirp.2009.09.006

[8] K. Subramanian, R.P. Lindsay, A system approach for the use of vitrified bonded superabrasive wheels for precision production grinding. Transactions of the ASME, 114(1992): 41-52.

DOI: 10.1115/1.2899757