Experimental Investigation of Effect of Rotary Abrasive Jet Nozzle on Coating Removal Rate and Surface Finish

Abstract:

An abrasive jet machine can be used effectively for removing the existing coating on the surfaces .A rotating, variable angle abrasive jet nozzle has been designed to produce a swirling abrasive jet .The horizontal and the vertical striking angles of the abrasive jet nozzle has been adjusted as 50° ,40° respectively [1] . Investigations have been carried out to evaluate the effect of Garnet and SiO₂ abrasives and the speed of the rotation of the nozzle on coating removal rate. Coated Mild steel, Galvanized Iron and Aluminium were used as specimens for investigations. The rotary abrasive jet nozzle provides the swirling abrasive jet and intensifying the shearing action as the speed increases gradually and reached up to 355 rpm. The surface roughness of the coating removed samples for various rotary speed of the abrasive jet nozzle were observed and measured. The surface roughness was found to be more closely associated with the speed of rotation of the abrasive jet nozzle.

• Periodical: Advanced Materials Research (Volume 1043)
• Pages: 165-171
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.1043.165
• Online since: October 2014
• Authors: D.S. Robinson Smart*, D.P. Rufus, Lijin George
• Keywords: Coating Removal, Horizontal Striking Angle, Rotary Abrasive Jet Nozzle, Swirling Abrasive Jet

References

[1] D.S. Robinson Smart, 2012. Experimental Investigation of effect of abrasive jet nozzle Position and angle on coating removal Rate. International journal of manufacturing System. 1.

DOI: 10.3923/ijmsaj.2011.57.64

[2] Raykowski, A., M. Hader, B. Maragno and J.K. Spelt, 2001. Blasting cleaning of gas turbine Components: Deposit removal and substrate Deformation. Wear, 249: 126-131.

DOI: 10.1016/s0043-1648(01)00518-x

[3] D.P. Weston, P.H. Shipway, S.J. Harris, 2005. Coating removal from an Industrial polypropylene Blend by cryogenic blasting: the development Substrate damage. International journal of Wear, 258: 392-401.

DOI: 10.1016/j.wear.2004.01.021

[4] S.Y. Ahmadi-Brooghani etl, 2007. Modeling of Single-Particle Impact in Abrasive Water Jet Machining, World Academy of Science, Engineering and Technology, Vol: 1 2007-12-20.

[5] G. Fowler, I.R. Pashby, P.H. Spipway, 2009. The Effect of particle hardness and shape when Abrasive water jet milling titanium alloy Ti6A14V, International journal of Wear, 266: 613-620.

DOI: 10.1016/j.wear.2008.06.013

[6] Z.X. Yuan, Y.Y. Chen, J.G. Jiang, C.F. Ma, 2006. Swirling effect of jet impingement on heat Transfer from a flat surface fto CO2 stream, International journal of Experimental, Thermal and Fluid sciences, 31: 55-60.

DOI: 10.1016/j.expthermflusci.2005.12.007

[7] Ciampini, D., J.K. Spelt and M. Papini, 2003. Simulation of interference effects in particle Streams following impact with a flat surface: Part I. Theory and analysis. Wear, 254: 237-249.

DOI: 10.1016/s0043-1648(03)00017-6

[8] L.M. Hlavac, I.M. Hlavacova, L. Gembalova, J. Kalicinsky, S. Fabian, J. Mestanek, J. Kmec, V. Madr, 2009. Experimental method for the Investigation of the abrasive water jet cutting Quality, Journal of materials processing Technology, 209: 6190-6195.

DOI: 10.1016/j.jmatprotec.2009.04.011

[9] Arola, D., M.L. McCain, S. Kunaporn and M. Ramulu, 2002. Water jet and abrasive water jet Surface treatment of titanium: a comparison of Surface texture and residual stress. Wear, 249: 943-950.

DOI: 10.1016/s0043-1648(01)00826-2

[10] Hashish, M. and J. Stewart, 2000. Observations on precision turning with AWJ. Proceedings of 15th International Conference on Jet Cutting Technology, Sept. 6-8, Ronneby, Sweden, pp: 367-380.

[11] J. Wang, 1999. Abrasive water jet machining of polymer matrix composites cutting performance, Erosive process and predictive models, Int. J. Adv. Manul. Technol. 15, 757-768.

DOI: 10.1007/s001700050129

[12] Oka, Y.I., H. Ohnogi, T. Hosokawa and M. Matsumura, 1997. The impact angle dependence of erosion damage caused by solid particle impact. Wear, 203/204: 573-579.

DOI: 10.1016/s0043-1648(96)07430-3