Erosion effects evaluation of pulsating water jet on brass EN 12164

0450608 - ÚGN 2016 RIV CZ eng C - Conference Paper (international conference)
Lehocká, D. - Klich, Jiří - Foldyna, Josef - Hloch, Sergej - Cárach, J.
Erosion effects evaluation of pulsating water jet on brass EN 12164.
Vodní paprsek 2015 - výzkum, vývoj, aplikace. Ostrava: Ústav geoniky AV ČR, v.v.i, 2015 - (Sitek, L.; Klichová, D.), s. 131-143. ISBN 978-80-86407-56-2.
[Vodní paprsek 2015 - výzkum, vývoj, aplikace. Velké Losiny (CZ), 06.10.2015-08.10.2015]
R&D Projects: GA MŠMT ED2.1.00/03.0082; GA MŠMT(CZ) LO1406
Institutional support: RVO:68145535
Keywords : pulsating water jet * erosion * mass material removal * brass
Subject RIV: JQ - Machines ; Tools

The objective of this experiment is to verify an assumption that with decreasing value of feed rate, mass v material removal Δ of brass EN 12164 during cutting by pulsating water jet is increased, and to seek the mass erosion curve course depending on the change of feed rate v [mm·s-1]. The selected observed parameter was evaluated in two units of Δ [mg·s-1] and Δ [mg·mm-1]. Two mutually related experiments were carried out. In the pilot experiment, the curve originating at hydraulic power output of 15 kW was evaluated that was achieved in combination of nozzle diameter d [mm] and pressure p [MPa] - d/p [mm/MPa] = 1.0668/52; 1.3208/39; 1.6002/31. After the pilot experiment, another experiment followed in which a particular range of feed rate values v = 0.2 - 8 mm·s-1 was selected. This resulted in finding that different courses of erosion process exist for mass material removal expressed in the form of curve Δ [mg·s-1] and Δ [mg·mm-1], depending on feed rate v [mm·s-1].
Permanent Link: http://hdl.handle.net/11104/0251874