Simulation and design of ECT differential bobbin probes for the inspection of cracks in bolts

4th Global Conference on Materials Science and Engineering

Ra, S.W.^1 ; Im, K.H.^2 ; Lee, S.G.^3 ; Kim, H.J.^3 ; Song, S.J.^3 ; Kim, S.K.^4 ; Cho, Y.T.^5 ; Woo, Y.D.^2 ; Jung, J.A.^6

Research Center, Seoul Metal Co. Ltd., Incheon

440-310, Korea, Republic of^1

Department of Mechanical and Automotive Engineering, Woosuk University, Jeonbuk

565-701, Korea, Republic of^2

Department of Mechanical Engineering, Sungkyunkwan University, Kyung-do

440-746, Korea, Republic of^3

Division of Mech. System Engineering, Chonbuk Natl. University, Jeonbuk

561-756, Korea, Republic of^4

Department of Manufacturing Design Engineering, Jeonju University, Jeonbuk

560-759, Korea, Republic of^5

Department of Mechanical and Automotive Engineering, Songwon University, Gwangju

501-210, Korea, Republic of^6

关键词: As numbers;    Coil sizes;    Design parameters;    FEM simulations;    Finite element method simulation;    Manufacturing process;    Multiple forging;    Oil filters;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/103/1/012040/pdf
DOI  :  10.1088/1757-899X/103/1/012040

来源: IOP

【 摘 要 】

All Various defects could be generated in bolts for a use of oil filters for the manufacturing process and then may affect to the safety and quality in bolts. Also, fine defects may be imbedded in oil filter system during multiple forging manufacturing processes. So it is very important that such defects be investigated and screened during the multiple manufacturing processes. Therefore, in order effectively to evaluate the fine defects, the design parameters for bobbin-types were selected under a finite element method (FEM) simulations and Eddy current testing (ECT). Especially the FEM simulations were performed to make characterization in the crack detection of the bolts and the parameters such as number of turns of the coil, the coil size and applied frequency were calculated based on the simulation results.