Eddy current testing of internal defect in additive/subtractive hybrid manufacturing 增减材复合制造内部缺陷的涡流检测

Wang，Longqun1,2; Zhang，Bi2; Peng，Ying3; Xie，Guoyin3; Bai，Qian1; Wang，Yibo1,2

2020-03-25

10.7527/S1000-6893.2019.23170

航空学报   影响因子和分区

1000-6893

Eddy Current Testing (ECT) technology is suitable for the complex processing environment of Additive/Subtractive Hybrid Manufacturing (ASHM) due to its non-contact, couplant-free and high-sensitive features. An analytical model is established to calculate the internal current distribution of the semi-infinite sample without defects. A titanium alloy sample with internal artificial-defects is fabricated by ASHM and the ECT experiments are conducted on it to study the effect of the excitation frequency and the lift-off distance on the testing depth. Both the theoretical and experimental results show that for a deep internal defect, a lower excitation frequency leads to a larger reactance increment signal and the lift-off distance has little effect on the reactance increment signal. The study concludes that the optimal excitation frequency of ECT is 90 kHz, and the optimal lift-off distance is 0.97 mm. The conclusion provides a theoretical foundation for the integration of ASHM and ECT.

Additive/subtractive hybrid manufacturing Eddy current testing Excitation frequency Internal defect Lift-off distance Testing depth

EI

中文

其他

20201608429297

Manufacture ; Eddy current testing ; Titanium alloys ; Defects

Heat Treatment Processes:537.1 ; Titanium and Alloys:542.3 ; Chemical Agents and Basic Industrial Chemicals:803 ; Manufacturing:913.4 ; Materials Science:951

2-s2.0-85083183869

Scopus

1.Key Laboratory for Precision and Non-traditional Machining Technology of Ministry of Education,Dalian University of Technology,Dalian,116024,China
2.Department of Mechanical and Energy Engineering,Southern University of Science and Technology,Shenzhen,518055,China
3.Technology Center,Xi'an Aero Engine Ltd.,Aero Engine Corporation of China,Xi'an,710021,China

Wang，Longqun,Zhang，Bi,Peng，Ying,等. Eddy current testing of internal defect in additive/subtractive hybrid manufacturing 增减材复合制造内部缺陷的涡流检测[J]. 航空学报,2020,41(3).

Wang，Longqun,Zhang，Bi,Peng，Ying,Xie，Guoyin,Bai，Qian,&Wang，Yibo.(2020).Eddy current testing of internal defect in additive/subtractive hybrid manufacturing 增减材复合制造内部缺陷的涡流检测.航空学报,41(3).

Wang，Longqun,et al."Eddy current testing of internal defect in additive/subtractive hybrid manufacturing 增减材复合制造内部缺陷的涡流检测".航空学报 41.3(2020).