Evaluation of physical phenomena and surface integrity during hydroabrasive disintegration of the rotating workpiece with feedback\nloop control

0502697 - ÚGN 2020 RIV GB eng J - Journal Article
Cárach, J. - Hloch, Sergej - Petrů, J. - Müller, M. - Hromasová, M. - Nag, A. - Čuha, D. - Hlaváček, Petr - Hatala, M. - Kratochvíl, J. - Ruggiero, A.
Evaluation of physical phenomena and surface integrity during hydroabrasive disintegration of the rotating workpiece with feedback
loop control.
Measurement. Roč. 134, February 2019 (2019), s. 586-594. ISSN 0263-2241. E-ISSN 1873-412X
R&D Projects: GA MŠMT(CZ) LO1406
Institutional support: RVO:68145535
Keywords : abrasive water jet turning * acoustic emission * online monitoring * SEM analysis * surface roughness parameter
OECD category: Mechanical engineering
Impact factor: 3.364, year: 2019
Method of publishing: Limited access
https://www.sciencedirect.com/science/article/pii/S0263224118310662

The paper deals with the potential of employing accompanying physical phenomena, acoustic emissions, during monitoring of abrasive water jet disintegration of rotating workpiece. It focuses on the acquisition of theoretical knowledge about this technology with the aid of SEM surface analysis. Variation in traverse speed of the cutting head is used during the experiments. All values were obtained during experimental materials turning by AWJ method. The surfaces were scanned using optical profilometer MicroProf FRT to obtain surface roughness parameters such as Ra (10.75 µm–22.5 µm), Rq (13.75 µm–28.25 µm) and Rz (88 µm–166 µm). The result includes the possibility of on-line control in the form of an adaptive connection, which applies information gathered by an array of sensors and its transformation into a digital form. The acquired signals represent that with increase in traverse speed, the signal intensities decrease due to shorter interaction time. SEM images provide characteristics of surfaces created by HADRO process such as craters, peaks and valleys, micro-cracks and striations marks.
Permanent Link: http://hdl.handle.net/11104/0294606