Sound Emitted at Boundary Layer During Steel Quenching

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RAVNIK, Franc ;GRUM, Janez .
Sound Emitted at Boundary Layer During Steel Quenching. 
Strojniški vestnik - Journal of Mechanical Engineering, [S.l.], v. 55, n.3, p. 199-209, august 2017. 
ISSN 0039-2480.
Available at: <https://www.sv-jme.eu/sl/article/sound-emitted-at-boundary-layer-during-steel-quenching/>. Date accessed: 15 sep. 2019. 
doi:http://dx.doi.org/.
Ravnik, F., & Grum, J.
(2009).
Sound Emitted at Boundary Layer During Steel Quenching.
Strojniški vestnik - Journal of Mechanical Engineering, 55(3), 199-209.
doi:http://dx.doi.org/
@article{.,
	author = {Franc  Ravnik and Janez  Grum},
	title = {Sound Emitted at Boundary Layer During Steel Quenching},
	journal = {Strojniški vestnik - Journal of Mechanical Engineering},
	volume = {55},
	number = {3},
	year = {2009},
	keywords = {heat treatment; quenching; cooling rate; sound emission; sound pressure level; polymetric solution; },
	abstract = {Quenching and tempering often represents the final stage in the manufacturing process of machine parts. The choice of optimum parameters of a quenching process and monitoring of the process itself ensures the achievement of the specified hardness and residual stress in the surface layer of the machine component. A hardening process can be controlled by selecting different quenching parameters (quenching media, its temperature, specimen temperature, …). In order to control the hardening process, one should be able to monitor the quenching process in real time. This paper treats an experimental setup comprising detection of sound emission and some of the results obtained during the quenching process. Due to the heat transfer from the specimen to the quenching medium, film boiling and nucleate boiling occur around the heated object, which strongly affects quenching. Bubble formation, their development and implosions, and disappearing around the surface causes sound emission whose intensity depends on the intensity of the bubbles’ oscillation and the speed of their disappearing, i.e. on the quenching process. Sound-pressure signals demonstrated by different amplitudes depending on time, at different frequencies, are shown in 3D diagrams. It was established that an analysis of sound emission signals can provide useful information that confirms the differences occurring in quenching with different quenching media and under different quenching conditions. Analyses of sound emission demonstrated that sound emission during quenching process can be used for monitoring the hardening process. Analysis of the quenching results and sound emission signals during the process itself confirm the applicability of the new approach to the controlling of steel quenching.},
	issn = {0039-2480},	pages = {199-209},	doi = {},
	url = {https://www.sv-jme.eu/sl/article/sound-emitted-at-boundary-layer-during-steel-quenching/}
}
Ravnik, F.,Grum, J.
2009 August 55. Sound Emitted at Boundary Layer During Steel Quenching. Strojniški vestnik - Journal of Mechanical Engineering. [Online] 55:3
%A Ravnik, Franc 
%A Grum, Janez 
%D 2009
%T Sound Emitted at Boundary Layer During Steel Quenching
%B 2009
%9 heat treatment; quenching; cooling rate; sound emission; sound pressure level; polymetric solution; 
%! Sound Emitted at Boundary Layer During Steel Quenching
%K heat treatment; quenching; cooling rate; sound emission; sound pressure level; polymetric solution; 
%X Quenching and tempering often represents the final stage in the manufacturing process of machine parts. The choice of optimum parameters of a quenching process and monitoring of the process itself ensures the achievement of the specified hardness and residual stress in the surface layer of the machine component. A hardening process can be controlled by selecting different quenching parameters (quenching media, its temperature, specimen temperature, …). In order to control the hardening process, one should be able to monitor the quenching process in real time. This paper treats an experimental setup comprising detection of sound emission and some of the results obtained during the quenching process. Due to the heat transfer from the specimen to the quenching medium, film boiling and nucleate boiling occur around the heated object, which strongly affects quenching. Bubble formation, their development and implosions, and disappearing around the surface causes sound emission whose intensity depends on the intensity of the bubbles’ oscillation and the speed of their disappearing, i.e. on the quenching process. Sound-pressure signals demonstrated by different amplitudes depending on time, at different frequencies, are shown in 3D diagrams. It was established that an analysis of sound emission signals can provide useful information that confirms the differences occurring in quenching with different quenching media and under different quenching conditions. Analyses of sound emission demonstrated that sound emission during quenching process can be used for monitoring the hardening process. Analysis of the quenching results and sound emission signals during the process itself confirm the applicability of the new approach to the controlling of steel quenching.
%U https://www.sv-jme.eu/sl/article/sound-emitted-at-boundary-layer-during-steel-quenching/
%0 Journal Article
%R 
%& 199
%P 11
%J Strojniški vestnik - Journal of Mechanical Engineering
%V 55
%N 3
%@ 0039-2480
%8 2017-08-21
%7 2017-08-21
Ravnik, Franc, & Janez  Grum.
"Sound Emitted at Boundary Layer During Steel Quenching." Strojniški vestnik - Journal of Mechanical Engineering [Online], 55.3 (2009): 199-209. Web.  15 Sep. 2019
TY  - JOUR
AU  - Ravnik, Franc 
AU  - Grum, Janez 
PY  - 2009
TI  - Sound Emitted at Boundary Layer During Steel Quenching
JF  - Strojniški vestnik - Journal of Mechanical Engineering
DO  - 
KW  - heat treatment; quenching; cooling rate; sound emission; sound pressure level; polymetric solution; 
N2  - Quenching and tempering often represents the final stage in the manufacturing process of machine parts. The choice of optimum parameters of a quenching process and monitoring of the process itself ensures the achievement of the specified hardness and residual stress in the surface layer of the machine component. A hardening process can be controlled by selecting different quenching parameters (quenching media, its temperature, specimen temperature, …). In order to control the hardening process, one should be able to monitor the quenching process in real time. This paper treats an experimental setup comprising detection of sound emission and some of the results obtained during the quenching process. Due to the heat transfer from the specimen to the quenching medium, film boiling and nucleate boiling occur around the heated object, which strongly affects quenching. Bubble formation, their development and implosions, and disappearing around the surface causes sound emission whose intensity depends on the intensity of the bubbles’ oscillation and the speed of their disappearing, i.e. on the quenching process. Sound-pressure signals demonstrated by different amplitudes depending on time, at different frequencies, are shown in 3D diagrams. It was established that an analysis of sound emission signals can provide useful information that confirms the differences occurring in quenching with different quenching media and under different quenching conditions. Analyses of sound emission demonstrated that sound emission during quenching process can be used for monitoring the hardening process. Analysis of the quenching results and sound emission signals during the process itself confirm the applicability of the new approach to the controlling of steel quenching.
UR  - https://www.sv-jme.eu/sl/article/sound-emitted-at-boundary-layer-during-steel-quenching/
@article{{}{.},
	author = {Ravnik, F., Grum, J.},
	title = {Sound Emitted at Boundary Layer During Steel Quenching},
	journal = {Strojniški vestnik - Journal of Mechanical Engineering},
	volume = {55},
	number = {3},
	year = {2009},
	doi = {},
	url = {https://www.sv-jme.eu/sl/article/sound-emitted-at-boundary-layer-during-steel-quenching/}
}
TY  - JOUR
AU  - Ravnik, Franc 
AU  - Grum, Janez 
PY  - 2017/08/21
TI  - Sound Emitted at Boundary Layer During Steel Quenching
JF  - Strojniški vestnik - Journal of Mechanical Engineering; Vol 55, No 3 (2009): Strojniški vestnik - Journal of Mechanical Engineering
DO  - 
KW  - heat treatment, quenching, cooling rate, sound emission, sound pressure level, polymetric solution, 
N2  - Quenching and tempering often represents the final stage in the manufacturing process of machine parts. The choice of optimum parameters of a quenching process and monitoring of the process itself ensures the achievement of the specified hardness and residual stress in the surface layer of the machine component. A hardening process can be controlled by selecting different quenching parameters (quenching media, its temperature, specimen temperature, …). In order to control the hardening process, one should be able to monitor the quenching process in real time. This paper treats an experimental setup comprising detection of sound emission and some of the results obtained during the quenching process. Due to the heat transfer from the specimen to the quenching medium, film boiling and nucleate boiling occur around the heated object, which strongly affects quenching. Bubble formation, their development and implosions, and disappearing around the surface causes sound emission whose intensity depends on the intensity of the bubbles’ oscillation and the speed of their disappearing, i.e. on the quenching process. Sound-pressure signals demonstrated by different amplitudes depending on time, at different frequencies, are shown in 3D diagrams. It was established that an analysis of sound emission signals can provide useful information that confirms the differences occurring in quenching with different quenching media and under different quenching conditions. Analyses of sound emission demonstrated that sound emission during quenching process can be used for monitoring the hardening process. Analysis of the quenching results and sound emission signals during the process itself confirm the applicability of the new approach to the controlling of steel quenching.
UR  - https://www.sv-jme.eu/sl/article/sound-emitted-at-boundary-layer-during-steel-quenching/
Ravnik, Franc, AND Grum, Janez.
"Sound Emitted at Boundary Layer During Steel Quenching" Strojniški vestnik - Journal of Mechanical Engineering [Online], Volume 55 Number 3 (21 August 2017)

Avtorji

Inštitucije

  • University of Ljubljana, Faculty of Mechanical Engineering, Slovenia
  • University of Ljubljana, Faculty of Mechanical Engineering, Slovenia

Informacije o papirju

Strojniški vestnik - Journal of Mechanical Engineering 55(2009)3, 199-209

Quenching and tempering often represents the final stage in the manufacturing process of machine parts. The choice of optimum parameters of a quenching process and monitoring of the process itself ensures the achievement of the specified hardness and residual stress in the surface layer of the machine component. A hardening process can be controlled by selecting different quenching parameters (quenching media, its temperature, specimen temperature, …). In order to control the hardening process, one should be able to monitor the quenching process in real time. This paper treats an experimental setup comprising detection of sound emission and some of the results obtained during the quenching process. Due to the heat transfer from the specimen to the quenching medium, film boiling and nucleate boiling occur around the heated object, which strongly affects quenching. Bubble formation, their development and implosions, and disappearing around the surface causes sound emission whose intensity depends on the intensity of the bubbles’ oscillation and the speed of their disappearing, i.e. on the quenching process. Sound-pressure signals demonstrated by different amplitudes depending on time, at different frequencies, are shown in 3D diagrams. It was established that an analysis of sound emission signals can provide useful information that confirms the differences occurring in quenching with different quenching media and under different quenching conditions. Analyses of sound emission demonstrated that sound emission during quenching process can be used for monitoring the hardening process. Analysis of the quenching results and sound emission signals during the process itself confirm the applicability of the new approach to the controlling of steel quenching.

heat treatment; quenching; cooling rate; sound emission; sound pressure level; polymetric solution;