A novel abrasive blasting process: Abrasive medium classification and CFD simulations

Özkaya, E.1, a; Bayraktar, E.2, b; Turek, S.2, c; Biermann, D.1, d

1)
Institut für Spanende Fertigung, Technische Universität Dortmund, Baroper Str. 303, 44227 Dortmund
2)
Institut für Angewandte Mathematik (LS 3), TU Dortmund, Vogelpothsweg 87, 44227 Dortmund

a) oezkaya@isf.de; b) ebayrakt@mathematik.uni-dortmund.de; c) stefan.turek@mathematik.tu-dortmund.de; d) biermann@isf.de

Kurzfassung

This study concerns the determination of the significant factors for an innovative deburring process: low pressure abrasive water-jet blasting. The abrasive medium aluminum oxide (Al2O3) is classified according to the individual characteristics of different grain sizes. Then, the particle behavior in the air jet is analyzed with an optical measuring method, Particle Image Velocimetry (PIV); the velocity profile and the particle distribution of the dispersed system are obtained. Computational Fluid Dynamics (CFD) simulations were verified by comparing the experimental and numerical results, and the velocity range for the abrasive particles has been specified.

Schlüsselwörter

Abrasive particles, deburring, micro milling, computational fluid dynamics, micro abrasive water-jet blasting

Veröffentlichung

Materialwissenschaft und Werkstofftechnik – Materials Science and Engineering Technology, 44 (2013) 6, S. 577-588, doi: 10.1002/mawe.201300124