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Erosion capability of ultra-high-speed continuous waterjet and pulsating waterjet: the comparison
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SYSNO ASEP 0478121 Document Type C - Proceedings Paper (int. conf.) R&D Document Type Conference Paper Title Erosion capability of ultra-high-speed continuous waterjet and pulsating waterjet: the comparison Author(s) Sitek, Libor (UGN-S) RID, ORCID
Hlaváček, Petr (UGN-S) RID, ORCID
Klichová, Dagmar (UGN-S) RID, ORCID
Trieb, F. (DE)
Pude, F. (DE)Number of authors 5 Source Title Vodní paprsek 2017 - výzkum, vývoj, aplikace. - Ostrava : Ústav geoniky AV ČR, 2017 / Klichová D. ; Sitek L. - ISBN 978-80-86407-71-5 Pages s. 175-193 Number of pages 19 s. Publication form Medium - C Action Vodní paprsek 2017 - výzkum, vývoj, aplikace Event date 13.09.2017 - 15.09.2017 VEvent location Lednice Country CZ - Czech Republic Event type WRD Language eng - English Country CZ - Czech Republic Keywords hyperpressure ; hydraulic power ; ultra-high-speed waterjet ; pulsating waterjet Subject RIV JQ - Machines ; Tools OECD category Mechanical engineering R&D Projects ED2.1.00/03.0082 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) LO1406 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) TA04020986 GA TA ČR - Technology Agency of the Czech Republic (TA ČR) Institutional support UGN-S - RVO:68145535 Annotation Advantages and possibilities of continuous ultra-high-speed waterjets (with
pressures of 600 MPa and more) when cutting metals are well known to
the professional public both from scientific studies and from practice. In addition
to efficiency increased as water pressure increases and reduced water
consumption, abrasive consumption can also be reduced in the case of abrasive
waterjet. Ultra-high-speed waterjet technology allows not only to cut metal sheets
with pure water, but also allows cutting of harder materials such as ceramics.
Despite the initial suspicion and technical problems associated with the reliability
and sealing of some hyperpressure elements, high-pressure devices generating
water pressures around 600 MPa are now commercially available. However, no
comparison has been made so far concerning the efficiency of these jets with
acoustically modulated high-speed pulsating waterjets using relatively low
pressures and higher water flow rates when eroding metallic materials.
The article compares cuts made by pure ultra-high-speed waterjet generated at
hyperpressures (from 500 to 800 MPa) with erosive capabilities of pulsating
waterjets generated on the contrary at water pressures in the order of tens of MPa
on three metallic materials (stainless steel, mild steel and copper) using the same
jet hydraulic power.Workplace Institute of Geonics Contact Lucie Gurková, lucie.gurkova@ugn.cas.cz, Tel.: 596 979 354 Year of Publishing 2018
Number of the records: 1