Parametric study of the grit blasting technique as a susface activation method prior to coating processes by thermal spraying
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URI: http://hdl.handle.net/10317/94Share
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Tomás Olmos, Pedro AntonioDirector/a
Conde del Teso, José; López y Matín Wenzelburger, DanielCenter
Escuela Técnica Superior de Ingeniería IndustrialKnowledge Area
Ingeniería de Sistemas y AutomáticaPublication date
2008-04-17Keywords
Materiales cerámicosAbstract
The aims of the study were to carry out a comparison of grit blasting and other surface pretreatment
processes and identify the relation between grit blasting parameters and coating
adhesion, because it can be assumed that the adhesion between substrate and coating
strongly depends on the physical properties of the substrate surface. By this way, in order to
improve the bonding between substrate and coating, it is necessary to study the influence of
different surface pre-treatment parameters and to compare different pre-treatment
techniques.
Grit blasting, water jet blasting and mechanicals processes (milling and grinding) have been
studied. In order to compare them, the roughness of the surface, the adhesive straights, the
topography, the contact surface and the residual stresses have been the considered
parameters to carry out the research. Two different substrates have been studied, AlMg7
and St_42.
For grit blasting, five different blasting parameters have been analyzed ...
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