TY - JOUR
T1 - Acoustic emission characteristics in eccentric rotary cropping process of stainless steel tube
AU - Li, Jingxiang
AU - Qiu, Hao
AU - Zhang, Da wei
AU - Zhao, Shengdun
AU - Zhao, Yongqiang
N1 - Publisher Copyright:
© 2017, Springer-Verlag London.
PY - 2017/9/1
Y1 - 2017/9/1
N2 - The eccentric rotary cropping is a precise cropping technology based on low-cycle fatigue fracture of metal bars and tubes with stress concentration. This paper applied acoustic emission technology to monitor the crack initiation, propagation, and final fracture of stainless steel 304 tubes during the full cycle of cropping process. Experiments were carried out on a self-made eccentric rotary cropping machine which could apply periodic displacement load to the stainless steel tubes with variable loading frequency. As a technics parameter, the loading frequency has an important influence on the cropping efficiency and the fracture cross-section quality of tube. The traditional parameters, frequency spectrum, and time–frequency characteristics of acoustic emission waveforms were presented to study the relationship between acoustic emission activity and fracture process. It has been concluded that the acoustic emission parameters, particularly the kurtosis, have a good applicability to represent the crack status of fatigue fracture and provide guidance for the cropping process control.
AB - The eccentric rotary cropping is a precise cropping technology based on low-cycle fatigue fracture of metal bars and tubes with stress concentration. This paper applied acoustic emission technology to monitor the crack initiation, propagation, and final fracture of stainless steel 304 tubes during the full cycle of cropping process. Experiments were carried out on a self-made eccentric rotary cropping machine which could apply periodic displacement load to the stainless steel tubes with variable loading frequency. As a technics parameter, the loading frequency has an important influence on the cropping efficiency and the fracture cross-section quality of tube. The traditional parameters, frequency spectrum, and time–frequency characteristics of acoustic emission waveforms were presented to study the relationship between acoustic emission activity and fracture process. It has been concluded that the acoustic emission parameters, particularly the kurtosis, have a good applicability to represent the crack status of fatigue fracture and provide guidance for the cropping process control.
KW - Acoustic emission
KW - Eccentric rotary cropping
KW - Fatigue crack
KW - Stainless steel tube
UR - https://www.scopus.com/pages/publications/85014167424
U2 - 10.1007/s00170-017-0174-8
DO - 10.1007/s00170-017-0174-8
M3 - 文章
AN - SCOPUS:85014167424
SN - 0268-3768
VL - 92
SP - 777
EP - 788
JO - International Journal of Advanced Manufacturing Technology
JF - International Journal of Advanced Manufacturing Technology
IS - 1-4
ER -