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손대홍 ( Daehong Sohn ),정희진 ( Hizean Jung ),안승호 ( Seungho Ahn ),김병수 ( Byungsu Kim ),김정연 ( Jungyeon Kim ),최병삼 ( Byungsam Choi ) 한국부식방식학회 2016 Corrosion Science and Technology Vol.15 No.2
The e-coating to inhibit induced corrosion can deposit a coating not only on the exterior surface but also on the inside of whole metallic components of body-in-white (BIW). But it is difficult to deposit paint films on the inside area because metallic components are multi layered. It may cause shortness of e-coating thickness. The only way to properly verify e-coating thickness is by performing the use of tear-down prototypes. When paint films’ thickness is inadequate, a structural modification on each metallic component is needed. Verification of the thickness improvement for a structural modification requires much manual effort and leads to increasing development time. Recently, the simulation technology has been developed to predict the e-coating thickness in e-coating field. By applying the simulation to BIW, improvement in paint thickness quality and shortening of development period are expected. The paper explains a validated solution that allows simulating the effect of design changes to the e-coating thickness and current density, thereby delivering results within a time frame of a few days.