Design and application of a cavitating waterjet

Whang Zong Wu*

*Corresponding author for this work

Research output: Contribution to journalJournal Article peer-review

2 Scopus citations


Increasing environmental restrictions on the printed circuit board cutting and cleaning have created an interest in the application of an ultra-high pressure cavitating waterjet. The erosion performance of a cavitating waterjet is achieved through a combined effect of the collapse of cavitation bubbles and the impact of high speed water droplets. In the investigation, the damage mechanism of cavitation formation and erosion is analyzed and design principles of a cavitating nozzle are accordingly proposed. Parameters for the optimal performance are discussed. The cavitating nozzle demonstrates four times erosion rate of a conventional nozzle experimentally. Application to the manufacturing processes of PCB boards is promising.

Original languageEnglish
Pages (from-to)15-22
Number of pages8
JournalJournal of the Chinese Society of Mechanical Engineers, Transactions of the Chinese Institute of Engineers, Series C/Chung-Kuo Chi Hsueh Kung Ch'eng Hsuebo Pao
Issue number1
StatePublished - 02 1997


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