Detection of arc characteristics and weld forming quality of aluminum alloy DP-MIG welding using AE signal through resonance demodulation

被引：8

作者：

He, Kuanfang ^{[1
]}

Xia, Zixiong ^{[1
]}

Si, Yin ^{[1
]}

Liang, Jiahe ^{[1
]}

Yong, Jiangfeng ^{[1
]}

Shi, Wenqing ^{[2
]}

机构：

[1] Foshan Univ, Sch Mech & Elect Engn & Automat, Foshan 528000, Peoples R China

[2] Guangdong Ocean Univ, Coll Elect & Informat Engn, Zhanjiang 524088, Peoples R China

来源：

MEASUREMENT | 2022年 / 189卷

基金：

中国国家自然科学基金;

关键词：

Aluminum alloy DP-MIG welding; AE signal; HHT; Resonance demodulation; Permutation entropy; Arc stability; Welding quality detection; ACOUSTIC-EMISSION SIGNALS; FEATURE-EXTRACTION; IDENTIFICATION; STEEL;

D O I：

10.1016/j.measurement.2021.110427

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Acoustic emission (AE) signals are generated during aluminum alloy double-pulse melt inert-gas (DP-MIG) welding, which contains physical information related to arc stability and weld forming quality. In this paper, the AE signal test platform of aluminum alloy DP-MIG welding is constructed. An adaptive resonance demodulation method for AE signals in unknown frequency bands is proposed, which is applied for the AE signals of the six groups different welding process parameters. The time-domain waveform and frequency spectrum of the ac-quired AE envelope signals are consistent with that of the arc current. Hilbert-Huang transform (HHT) is per -formed on the envelope signal to obtain a time-frequency diagram. The signal energy changes periodically along the time scale, and the frequency distribution ranges from 0 to 2000 Hz. The segmental entropy of the AE signal is calculated to evaluate the welding seam forming quality. The calculated entropy values of 0.6, 0.9 and 1 mean that the welding seam is formed well, the values of 1.6 and 1.9 mean that the welding seam is poor. The research provides a new and effective method for realizing the quality monitoring of aluminum alloy DP-MIG welding process.

引用

页数：18

共 4 条

[1] Microstructure and mechanical properties of DP-MIG welding-rolling composite forming joints of 6061-T6 aluminum alloy
Song G.
Dong X.
Cheng J.
Wang Z.
Liu L.
Hanjie Xuebao/Transactions of the China Welding Institution, 2023, 44 (04): : 1 - 29
[2] Time frequency feature extraction of the arc energy for quality detection of the aluminum alloy double pulse MIG welding
He, Kuanfang
Si, Yin
Lu, Wei
Lu, Qinghua
Li, Qi
Huang, Chenhua
Xiao, Siwen
JOURNAL OF ADVANCED MECHANICAL DESIGN SYSTEMS AND MANUFACTURING, 2020, 14 (06):
[3] Time frequency feature extraction of the arc energy for quality detection of the aluminum alloy double pulse MIG welding
He K.
Si Y.
Lu W.
Lu Q.
Li Q.
Huang C.
Xiao S.
He, Kuanfang (hkf791113@163.com), 1600, Japan Society of Mechanical Engineers (14):
[4] Fluid Flow Characteristics and Weld Formation Quality in Gas Tungsten Arc Welding of a Thick-Sheet Aluminum Alloy Structure by Varying Welding Position
Chang, Baohua
Xiao, Hong
Zeng, Jinle
Yang, Shuo
Du, Dong
Song, Jianling
Han, Guoliang
APPLIED SCIENCES-BASEL, 2018, 8 (08):

← 1 →