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김순경(S. K. Kim),김문경(M K. Kim) 대한기계학회 2005 대한기계학회 춘추학술대회 Vol.2005 No.5
An extensive investigation was conducted to assess the influence of steel sheet surface finish on pained surface appearance. Several kinds of textured steel sheet were painted simultaneously using advanced solvent-based luxury vehicle paint systems. Especially, the current emphasis on control of surface roughness of cold rolled steel sheet has been prompted by the automotive industry's concern with the as-painted appearance of sheet products, because the influence of such characteristics on paintability, formability and painted surface appearance is important in defining steel surface requirements for automotive industries. The results are discussed in detail with respect to 1) the influence of different steel surface textures on paint appearance, 2) the evolution of surface topography during painting, and 3) the implication of this work. 4) Painted sheet appearance is strongly affected by surface roughness and peak count of base-metal and influenced by the topographical properties of substrate, paint thickness and zinc coating variables. 5) The painted appearance of shot blast textured(SBT) and electro-discharge textured(EDT) automotive cold rolled steel sheets was determined and related to surface roughness parameters, zinc coating method, and paint thickness.