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Acoustic emission detection of macro-cracks on engraving tool steel inserts during the injection molding cycle using PZT sensors
ID Svečko, Rajko (Author), ID Kusić, Dragan (Author), ID Kek, Tomaž (Author), ID Sarjaš, Andrej (Author), ID Hančič, Aleš (Author), ID Grum, Janez (Author)

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Abstract
This paper presents an improved monitoring system for the failure detection ofen graving tool steel inserts during the injection molding cycle. This system uses acoustic emission PZT sensors mounted through acoustic waveguides on the engraving insert. We were thus able to clearly distinguish the defect through measured AE signals. Two engraving tool steel inserts were tested during the production of standard test specimens, each under the same processing conditions. By closely comparing the captured AE signals on both engraving inserts during the filling and packing stages, we were able to detect the presence of macro-cracks on one engraving insert. Gabor wavelet analysis was used for closer examination of the captured AE signals' peak amplitudes during the filling and packing stages. The obtained results revealed that such a system could be used successfully as an improved tool for monitoring the integrity of an injection molding process.

Language:English
Keywords:injection molding, process monitoring, acoustic emission, PZT sensors, piezoelectric effect
Work type:Article (dk_c)
Typology:1.01 - Original Scientific Article
Organization:FS - Faculty of Mechanical Engineering
Year:2013
Publication status in journal:Published
Article version:Publisher's version of article
Number of pages:Str. 6365-6379
Numbering:Vol. 13, iss. 5
UDC:681.586.773
ISSN on article:1424-8220
DOI:10.3390/s130506365 This link opens in a new window
COBISS.SI-ID:16888854 This link opens in a new window
Publication date in RUL:31.08.2021
Views:270
Downloads:46
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Record is a part of a journal

Title:Sensors
Shortened title:Sensors
Publisher:MDPI
ISSN:1424-8220
COBISS.SI-ID:10176278 This link opens in a new window

Licences

License:CC BY 3.0, Creative Commons Attribution 3.0 Unported
Link:https://creativecommons.org/licenses/by/3.0/deed.en
Description:You are free to reproduce and redistribute the material in any medium or format. You are free to remix, transform, and build upon the material for any purpose, even commercially. You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use. You may not apply legal terms or technological measures that legally restrict others from doing anything the license permits.
Licensing start date:14.05.2013

Secondary language

Language:Slovenian
Keywords:injekcijsko brizganje, nadzorovanje procesa, akustična emisija, PZT senzorji, piezoelektrični efekt

Projects

Funder:EC - European Commission
Funding programme:European Social Fund

Funder:Drugi - Drug financer ali več financerjev
Funding programme:Slovenian Ministry for Higher Education, Science and Technology

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