Utilization of acoustic emissions in the evaluation of machining process

Result code in 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>

Result on the web

<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

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Result language

angličtina

Original language name

Utilization of acoustic emissions in the evaluation of machining process

Original language description

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.

Czech name

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Czech description

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Type

D - Article in proceedings

CEP classification

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OECD FORD branch

20501 - Materials engineering

Project

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Continuities

S - Specificky vyzkum na vysokych skolach

Publication year

2017

Confidentiality

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

Article name in the collection

MendelNet 2017: Proceedings of International PhD Students Conference

ISBN

978-80-7509-529-9

ISSN

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e-ISSN

neuvedeno

Number of pages

5

Pages from-to

820-824

Publisher name

Mendelova univerzita v Brně

Place of publication

Brno

Event location

Brno

Event date

Nov 8, 2017

Type of event by nationality

WRD - Celosvětová akce

UT code for WoS article

000440194500147