Analysis of Acoustic Emission Signal for the Detection of Defective Manufactures in Press Process
Small cracks or chips of a product appear very
frequently in the course of continuous production of an automatic
press process system. These phenomena become the cause of not only
defective product but also damage of a press mold. In order to solve
this problem AE system was introduced. AE system was expected to
be very effective to real time detection of the defective product and to
prevention of the damage of the press molds.
In this study, for pick and analysis of AE signals generated from the
press process, AE sensors/pre-amplifier/analysis and processing board
were used as frequently found in the other similar cases. For analysis
and processing the AE signals picked in real time from the good or bad
products, specialized software called cdm8 was used. As a result of
this work it was conformed that intensity and shape of the various AE
signals differ depending on the weight and thickness of metal sheet
and process type.
[1] Min Seok Oh, Jong Sik Won, Youn Gyo Jung, Journal of the Korean
Society of Precision Engineering Vol. 16, No.3, 83 (March 1999)
[2] Y. H. Kim, "Lecture notes on acoustics", CHEONG MOON GAK, vol.1,
2008, pp.80-82
[3] Y, H, Pao , R.R. Gsjewski, "The generalized ray theory and transient
response of layered elastic solid", chapter 6, Physical Acoustics, vol.13,
W. P. Mason and R. N. Thurston, ed., Academic Press, pp. 183-265(1977)
[4] J. O. Lee, H.C. Kim, "AE Source Function, During, Martensitic
Transformation in Cu-Al-Mn Alloy", Proc. 1st Far East NDT
Confer.(FENDT-91), Korea, p.151(1991)
[5] H. K. Chang, J. S. Lee, H. K. Chang, "Acoustic Emission Testing of
Cylindrical Reactor Pressure Vessel during Hydro tests", Journal of The
Korean Society For Nondestructive Testing, no.1, 1983, pp.12
[6] Christian U. Grosse, Masayasu Ohtsu, "Acoustic Emission Testing",
Springer Verlag, 2008, pp.45-47
[7] Jong O Lee, Acoustic Emission and its Applications, KSNT/Workshop/
43 (2003)
[1] Min Seok Oh, Jong Sik Won, Youn Gyo Jung, Journal of the Korean
Society of Precision Engineering Vol. 16, No.3, 83 (March 1999)
[2] Y. H. Kim, "Lecture notes on acoustics", CHEONG MOON GAK, vol.1,
2008, pp.80-82
[3] Y, H, Pao , R.R. Gsjewski, "The generalized ray theory and transient
response of layered elastic solid", chapter 6, Physical Acoustics, vol.13,
W. P. Mason and R. N. Thurston, ed., Academic Press, pp. 183-265(1977)
[4] J. O. Lee, H.C. Kim, "AE Source Function, During, Martensitic
Transformation in Cu-Al-Mn Alloy", Proc. 1st Far East NDT
Confer.(FENDT-91), Korea, p.151(1991)
[5] H. K. Chang, J. S. Lee, H. K. Chang, "Acoustic Emission Testing of
Cylindrical Reactor Pressure Vessel during Hydro tests", Journal of The
Korean Society For Nondestructive Testing, no.1, 1983, pp.12
[6] Christian U. Grosse, Masayasu Ohtsu, "Acoustic Emission Testing",
Springer Verlag, 2008, pp.45-47
[7] Jong O Lee, Acoustic Emission and its Applications, KSNT/Workshop/
43 (2003)
@article{"International Journal of Mechanical, Industrial and Aerospace Sciences:56190", author = "Dong Hun Kim and Won Kyu Lee and Sok Won Kim", title = "Analysis of Acoustic Emission Signal for the Detection of Defective Manufactures in Press Process", abstract = "Small cracks or chips of a product appear very
frequently in the course of continuous production of an automatic
press process system. These phenomena become the cause of not only
defective product but also damage of a press mold. In order to solve
this problem AE system was introduced. AE system was expected to
be very effective to real time detection of the defective product and to
prevention of the damage of the press molds.
In this study, for pick and analysis of AE signals generated from the
press process, AE sensors/pre-amplifier/analysis and processing board
were used as frequently found in the other similar cases. For analysis
and processing the AE signals picked in real time from the good or bad
products, specialized software called cdm8 was used. As a result of
this work it was conformed that intensity and shape of the various AE
signals differ depending on the weight and thickness of metal sheet
and process type.", keywords = "press, acoustic emission, signal processing", volume = "3", number = "5", pages = "527-5", }