Advances in High Performance Micro Abrasive Blasting

Micro abrasive blasting (MAB) has been successfully improved by the introduction of a rectangular Laval nozzle concept. In this paper the earlier presented set of models has been extended to predict the performance of such nozzles. The results of the sub-model for the jet show that its energy intens...

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Bibliographic Details
Published inCIRP annals Vol. 54; no. 1; pp. 281 - 284
Main Authors Achtsnick, M., Hoogstrate, A.M., Karpuschewski, B.
Format Journal Article Conference Proceeding
LanguageEnglish
Published Oxford Elsevier Ltd 2005
Elsevier
Subjects
Abrasion
Applied sciences
Blasting
Exact sciences and technology
Mechanical engineering. Machine design
Micromachining
Abrasion
Blasting
Micromachining
Particle size
Roughness
Processing time
Rough surface
Experimental study
Modeling
Contour
Jet
Abrasives
Miniaturization
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Summary:Micro abrasive blasting (MAB) has been successfully improved by the introduction of a rectangular Laval nozzle concept. In this paper the earlier presented set of models has been extended to predict the performance of such nozzles. The results of the sub-model for the jet show that its energy intensity is more evenly distributed and at a substantial higher level compared to conventional nozzle concepts. The results of the material removal sub-model show that it is more beneficial to increase particle velocity rather than particle size to increase the blasting efficiency. The developed sub-model for the contour generation predicts the shape and the roughness of the blasting profile. A scanning strategy has been developed which enables a significant reduction of the processing time. The developed models have been experimentally proved and verified. The knowledge gained in this investigation opens the possibility to derive new rules for the design of microstructures.
ISSN:0007-8506
DOI:10.1016/S0007-8506(07)60103-6