Experimental Study of Particle Velocity Measurement in Abrasive Water Jet Cutting in the Nozzle and Jet Stream using Multiple Sensing Elements


Gee, C.


The machining ability of abrasive water jets are largely controlled by velocities of the abrasive. Previous work (1) has examined the size of abrasive that is delivered by individual nozzle designs, as a function of their shape, and from a common supply size range. This study measures the velocities achieved by representative particles. To understand the differences in design performance, an improved velocity measuring tool was designed, and magnetic particles were seeded into the garnet feed to allow more accurate measurement over a more extended range. By locating a series of five sensing coils at different points along the jet nozzle and the exiting jet path it was possible to calculate the particle velocity not only after leaving the nozzle, but also within the focusing tube. © BHR Group 2004 Water Jetting.

Meeting Name

17th International Conference on Water Jetting: Advances and Future Needs (2004: Sep. 7-9, Mainz, Germany)


Mining Engineering

Keywords and Phrases

Abrasive Water Jet; Coils; Magnetic Particles; Particle Velocities

Document Type

Article - Conference proceedings

Document Version


File Type





© 2004 BHR Group, All rights reserved.

Publication Date

09 Sep 2004

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