20.500.12556/DKUM-66362 Acoustic emission detection of macro-cracks on engraving tool steel inserts during the injection molding cycle using PZT sensors 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 signalsć 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. injection molding process monitoring acoustic emission PZT sensors piezoelectric effect injekcijsko brizganje nadzorovanje procesa akustična emisija PZT senzorji piezoelektrični efekt true true true Angleški jezik Slovenski jezik Znanstveno delo 2017-06-22 10:13:26 2017-06-22 10:14:10 2022-07-11 03:06:30 2019-07-11 15:44:51 2013 0 0 str. 6365-6379 št. 5 Letn. 13 2013 0000-00-00 Zaloznikova Objavljeno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 1424-8220 681.586.773 10176278 16888854 10.3390/s130506365 1424-8220 URN:SI:UM:DK:XGCGTJFN Sensors_2013_Svecko_et_al._Acoustic_Emission_Detection_of_Macro-Cracks_on_Engraving_Tool_Steel_Inserts_during_the_Injection_Molding_Cycl.pdf Sensors_2013_Svecko_et_al._Acoustic_Emission_Detection_of_Macro-Cracks_on_Engraving_Tool_Steel_Inserts_during_the_Injection_Molding_Cycl.pdf 1 F67DB9841B8BE93AA90B418AFF6AC13A 0e23cbcc6f1c395dd0c31b8fa58c8760d0974fda9218559646f6e2f53ef0a711 47e1d0e5-7c0e-11eb-bb7a-00155d0001ca https://dk.um.si/Dokument.php?lang=slv&id=112928 http://www.mdpi.com/1424-8220/13/5/6365/ 1 https://dk.um.si/Dokument.php?lang=slv&id=112927 Fakulteta za elektrotehniko, računalništvo in informatiko 0 0 0