Journal
SENSORS
Volume 13, Issue 5, Pages 6365-6379Publisher
MDPI
DOI: 10.3390/s130506365
Keywords
injection molding; process monitoring; acoustic emission; PZT sensors; piezoelectric effect
Funding
- European Union, European Social Fund
- Slovenian Ministry for Higher Education, Science and Technology
Ask authors/readers for more resources
This paper presents an improved monitoring system for the failure detection of engraving 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.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available