Computational analysis of single and multiple impacts of low pressure and high pressure cold sprayed aluminum particles using SPH

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Abstract

Cold spray (CS) is a unique spraying process where the spray materials are not melted in a spray gun. Instead, the particles are kinetically deposited on the substrate at low temperature using compressed gas. This study investigates the bonding mechanism of low pressure CS (LPCS) and high pressure CS (HPCS) techniques through smoothed particle hydrodynamics (SPH) simulations, which are achieved by modeling the single and multiple particle impacts of aluminum (Al) particles on Al substrate. The impact of Al particles on the Al substrate is analyzed by evaluating the velocity, shape, temperature of the powder particles and substrate, porosity between particles, and effect of stress on the substrate. In the case of single particle impact, HPCS results in increased particle deformation. In multiple particle impact, LPCS results in low porosity. The shape of deformation, formation of pores, and residual stress of Al can be affected by the deposition process. Results indicate that LPCS is suitable for the deposition of light materials such as Al.

Original languageEnglish
Title of host publicationMaterial and Manufacturing Technology V
PublisherTrans Tech Publications Ltd
Pages147-151
Number of pages5
ISBN (Print)9783038351498
DOIs
Publication statusPublished - 01 Jan 2014
Event5th International Conference on Material and Manufacturing Technology, ICMMT 2014 - Kuala Lumpur, Malaysia
Duration: 08 May 201409 May 2014

Publication series

NameAdvanced Materials Research
Volume974
ISSN (Print)1022-6680
ISSN (Electronic)1662-8985

Other

Other5th International Conference on Material and Manufacturing Technology, ICMMT 2014
CountryMalaysia
CityKuala Lumpur
Period08/05/1409/05/14

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All Science Journal Classification (ASJC) codes

  • Engineering(all)

Cite this

Yusof, S. N. A., Manap, A., Misran, H., & Othman, S. Z. (2014). Computational analysis of single and multiple impacts of low pressure and high pressure cold sprayed aluminum particles using SPH. In Material and Manufacturing Technology V (pp. 147-151). (Advanced Materials Research; Vol. 974). Trans Tech Publications Ltd. https://doi.org/10.4028/www.scientific.net/AMR.974.147