Eddy current detection of subsurface defects for additive/subtractive hybrid manufacturing

Du, Wei1; Bai, Qian1; Wang, Yibo1; Zhang, Bi1,2

2018-04

10.1007/s00170-017-1354-2

INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY   影响因子和分区

0268-3768

1433-3015

In this study, an eddy current (EC) detector is integrated in an additive/subtractive hybrid manufacturing (ASHM) process. The detector facilitates in-process inspection and repair operations through material deposition, defect detection, and removal processes layer by layer. A feasibility test is carried out on eddy current detection of subsurface defects in additively manufactured parts by using an EC detector. The study compares the results obtained from the EC detection with those by the X-ray computed tomography and the destructive methods. Experiments and simulations are conducted to investigate the effect of excitation frequency on intensity of the eddy current signal. The effects of residual heat of an additively manufactured specimen and lift-off distance of an EC probe on impedance changes are also investigated. In addition, the effect of defect width on EC signal is analyzed. The study shows that the EC method is capable of detecting subsurface defects in the ASHM parts. It is promising to integrate the EC detection and subtractive manufacturing into additive manufacturing to produce parts with improved quality and better performances.

Additive/subtractive hybrid manufacturing Eddy current detection Titanium Defects Impedance

SCI ; EI

英语

通讯

Science Fund for Creative Research Groups of NSFC[51621064]

Automation & Control Systems ; Engineering

Automation & Control Systems ; Engineering, Manufacturing

WOS:000428237100006

SPRINGER LONDON LTD

20175004520428

Computerized tomography ; Deposition ; Eddy current testing ; Electric current measurement ; Electric impedance ; Titanium

Titanium and Alloys:542.3 ; Electricity: Basic Concepts and Phenomena:701.1 ; Computer Applications:723.5 ; Chemical Operations:802.3 ; Electric Variables Measurements:942.2 ; Materials Science:951

ENGINEERING

Web of Science

1.Dalian Univ Technol, Key Lab Precis & Nontradit Machining Technol, Minist Educ, Dalian, Peoples R China
2.Southern Univ Sci & Technol, Dept Mech & Energy Engn, Shenzhen, Peoples R China

Du, Wei,Bai, Qian,Wang, Yibo,et al. Eddy current detection of subsurface defects for additive/subtractive hybrid manufacturing[J]. INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY,2018,95(9-12):3185-3195.

Du, Wei,Bai, Qian,Wang, Yibo,&Zhang, Bi.(2018).Eddy current detection of subsurface defects for additive/subtractive hybrid manufacturing.INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY,95(9-12),3185-3195.

Du, Wei,et al."Eddy current detection of subsurface defects for additive/subtractive hybrid manufacturing".INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY 95.9-12(2018):3185-3195.