Utilization of acoustic emissions in the evaluation of machining process

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F62156489%3A43210%2F17%3A43912616" target="_blank" >RIV/62156489:43210/17:43912616 - isvavai.cz</a>

Výsledek na webu

<a href="https://mnet.mendelu.cz/mendelnet2017/mnet_2017_full.pdf" target="_blank" >https://mnet.mendelu.cz/mendelnet2017/mnet_2017_full.pdf</a>

DOI - Digital Object Identifier

—

Jazyk výsledku

angličtina

Název v původním jazyce

Utilization of acoustic emissions in the evaluation of machining process

Popis výsledku v původním jazyce

The thesis deals with the use of non-destructive testing methods (acoustic emission) for the description and identification of stages during the machining process. For this measurement, advanced machining was selected. Selected cutting speeds - 28mm / min, 40mm / min and 80mm / min, and the rotor speed was 56 rpm with a chip size of 1mm. At each cutting speed, the resulting graphs were recorded. The test material was chosen as the structural steel 12 050. In the experimental part the methodology of continuous emission signal recording, continuous processing and evaluation of the measured data and monitoring of the response of the stressed material (during the machining process) was designed in real time. The detected values were then inserted into this methodology, subsequently evaluated, it was the detection of emission signals using the acoustic emission apparatus. Acoustic emission is a fast, short release of energy in the form of elastic waves. The acoustic emission curve has several parameters that can be used to characterize the source defect. Through an appropriately designed methodology for detecting, processing, and evaluating AE signals, it is possible to track the progress of the machining process, the measured data allow you to obtain new information about the processes that accompany the machining. Thus, the emission signals can be used to indicate microcracks in the internal structure of the stressed materials.

Název v anglickém jazyce

Utilization of acoustic emissions in the evaluation of machining process

Popis výsledku anglicky

The thesis deals with the use of non-destructive testing methods (acoustic emission) for the description and identification of stages during the machining process. For this measurement, advanced machining was selected. Selected cutting speeds - 28mm / min, 40mm / min and 80mm / min, and the rotor speed was 56 rpm with a chip size of 1mm. At each cutting speed, the resulting graphs were recorded. The test material was chosen as the structural steel 12 050. In the experimental part the methodology of continuous emission signal recording, continuous processing and evaluation of the measured data and monitoring of the response of the stressed material (during the machining process) was designed in real time. The detected values were then inserted into this methodology, subsequently evaluated, it was the detection of emission signals using the acoustic emission apparatus. Acoustic emission is a fast, short release of energy in the form of elastic waves. The acoustic emission curve has several parameters that can be used to characterize the source defect. Through an appropriately designed methodology for detecting, processing, and evaluating AE signals, it is possible to track the progress of the machining process, the measured data allow you to obtain new information about the processes that accompany the machining. Thus, the emission signals can be used to indicate microcracks in the internal structure of the stressed materials.

Druh

D - Stať ve sborníku

CEP obor

—

OECD FORD obor

20501 - Materials engineering

Projekt

—

Návaznosti

S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2017

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

MendelNet 2017: Proceedings of International PhD Students Conference

ISBN

978-80-7509-529-9

ISSN

—

e-ISSN

neuvedeno

Počet stran výsledku

5

Strana od-do

820-824

Název nakladatele

Mendelova univerzita v Brně

Místo vydání

Brno

Místo konání akce

Brno

Datum konání akce

8. 11. 2017

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

000440194500147