Number of the records: 1

Surface integrity evaluation of brass CW614N after impact of acoustically\nexcited pulsating water jet

SYSNO ASEP	0461707
Document Type	J - Journal Article
R&D Document Type	Journal Article
Subsidiary J	Článek ve WOS
Title	Surface integrity evaluation of brass CW614N after impact of acoustically excited pulsating water jet
Author(s)	Lehocká, D. (SK) Klich, Jiří (UGN-S)_{RID, ORCID} Foldyna, Josef (UGN-S)_{RID, ORCID} Hloch, Sergej (UGN-S)_{RID, SAI, ORCID} Hvizdoš, P. (SK) Fides, M. (SK) Botko, F. (SK) Cárach, J. (SK)
Number of authors	8
Source Title	Procedia Engineering. - Amsterdam : Elsevier BV Roč. 149, č. 149 (2016), s. 236-244
Number of pages	9 s.
Publication form	Online - E
Action	International Conference on Manufacturing Engineering and Materials, ICMEM 2016
Event date	06.06.2016 - 10.06.2016
VEvent location	Nový Smokovec
Country	SK - Slovakia
Event type	EUR
Language	eng - English
Country	NL - Netherlands
Keywords	pulsating water jet ; surface integrity ; mass material removal ; brass ; nanoindentation
Subject RIV	JQ - Machines ; Tools
R&D Projects	LO1406 GA MŠMT - Ministry of Education, Youth and Sports (MEYS)
	ED2.1.00/03.0082 GA MŠMT - Ministry of Education, Youth and Sports (MEYS)
Institutional support	UGN-S - RVO:68145535
UT WOS	000386946500031
EID SCOPUS	84980010028
DOI	10.1016/j.proeng.2016.06.662
Annotation	Presented article is focused on surface integrity evaluation of brass CW614N form the sight of surface topography, structural changes in surface layers and strengthening character in subsurface layers after impact of acoustically excited pulsating water jet (PWJ). Surface topography was evaluated using optical profilometry. Structural changes in subsurface layer were observed based on mass material removal ∆m [mg/s] and maximal depth of penetrance of PWJ hmax [mm]. Nano indentation measurement according to Berkovich were used to examination of strengthening character in subsurface layer. Disintegration of experimental samples was performed under constant technological conditions: hydraulic power of plunger pump Ph= 19 kW; round nozzle diameter d = 1.6 mm; feed speed rate v = 0.75 mm/s; pressure of plunger pump p = 38 MPa, stand-off distance of nozzle from target material z = 45 mm; ultrasound frequency f = 20.29 kHz and as variable factor was set power of ultrasound P on values 340, 360 and 380 W. In terms of surface topography experimental investigation proved that PWJ under selected conditions is not suitable for precision machining. Evaluation of the surface characteristics indicates that the chemical composition has a significant effect on material weight loss Δm [mg/s] and a maximum depth of penetration of PWJ hmax [mm]. Evaluation of characteristics of subsurface layer was observed strengthened area with lower elasticity.
Workplace	Institute of Geonics
Contact	Lucie Gurková, lucie.gurkova@ugn.cas.cz, Tel.: 596 979 354
Year of Publishing	2017
Electronic address	http://www.sciencedirect.com/science/article/pii/S1877705816311705

Number of the records: 1