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Full-Text Articles in Mechanical Engineering
An Investigation Of The Dynamics Of Abrasive Waterjet Formation, Md. Ekramul Hasan Khan
An Investigation Of The Dynamics Of Abrasive Waterjet Formation, Md. Ekramul Hasan Khan
Theses
The aim of this research was to investigate the jet formation and the jet behavior, as characterized by the velocity field, the force exerted by the jet on a work-piece and the jet geometry. The velocity and force distributions were measured using a laser transit anemometer (LTA) and a piezoelectric force transducer (PFT) respectively for constant water pressure (334.6 MPa) supply. The jet structure and its instantaneous behavior were visualized by the used of high speed filming. LTA and PFT measuring techniques were established and verified. The measurements were performed under different operating conditions. It was found that at a …
Investigation Of Forces In The Course Of The Water Jet--Work Piece Interaction, Hung-Yuan Li
Investigation Of Forces In The Course Of The Water Jet--Work Piece Interaction, Hung-Yuan Li
Theses
This study is concerned with the dynamic of the interaction between the water jet and the work-piece. The piezoelectric transducer was used to construct an experimental setup. The simultaneous use of the constructed setup and strain gage enables us to validate the experimental procedure. The forces in the impingment zone were measured at different operational conditions. Totally about 400 different combinations of these conditions were tested. It was found that the force is mainly determined by the diameter of the sapphire. The effects of the abrasive size , abrasive flow rate, the diameter of the carbide tube, and the stand-off …