The bachelor’s thesis deals with an ultrasound-based measurement system. The system is designed for quality control of welds. The first part of the thesis is devoted to the introduction of the measuring system, an overview of its use, the calibration of the system and to the interpretation of the results that the system shows when measuring. The main objective was to check in which area the measuring system could be implemented and what it could measure. The system was compared with a control device and measurement systems analysis (MSA) was carried out.
The aim of the research was to see if the non-destructive ultrasonic method could replace the destructive macrography method. In the conclusion of the thesis the results of the comparison with the control device and MSA analasys, are presented. The analysis of the results shows that the measurement system is not acceptable for a measurement method where an exact value of the weld penetration is required. However, in the case where FSW and MIG welds are checked if they overlap and thus provide tightness, the system is reliable. To replace the system in a production plant, it should be reliable in both applications.
It would be worth checking other types of probes used for ultrasonic testing and repeating the analysis. The piece preparation process itself could also be further improved and better solutions could be found for the grinding of the piece, which would help the measurement.
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