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Proceedings Paper

Laser processing of metal surfaces for increasing paint adhesion
Author(s): Tomiyasu Hirose; Hideki Ichihara; Kenji Sugimoto; Kazuo Sasazawa; Shouji Shibasaki
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Paper Abstract

Painted metal exteriors of buildings begin to degrade in about 10 years due to solar heat, UV rays, the sea salt adhesion, the acid rain etc. When degradation and exfoliation of the paint film occurs, rust appears in the metal and replacement or repainting becomes necessary. The adhesion of paints on metal is usually achieved by chemical adhesion or by increasing the surface area by blast processing. In this study, the possibility of improving paint adhesion by forming minute holes on the metal surface by laser irradiation was studied through modeling of the adhesion of the paint film and adaptability to deformation. The viscosity and painting method depend on the size and location of the oles. The presence of the holes makes it possible to form complicated shapes by pressing because the holes absorb some of the strain caused by pressing.

Paper Details

Date Published: 14 January 2000
PDF: 10 pages
Proc. SPIE 3887, High-Power Lasers in Civil Engineering and Architecture, (14 January 2000); doi: 10.1117/12.375196
Show Author Affiliations
Tomiyasu Hirose, Chigira Riken (Japan)
Hideki Ichihara, Taisei Corp. (Japan)
Kenji Sugimoto, Taisei Corp. (Japan)
Kazuo Sasazawa, Taiyo Chemical Industry Co., Ltd. (Japan)
Shouji Shibasaki, Taiyo Chemical Industry Co., Ltd. (Japan)

Published in SPIE Proceedings Vol. 3887:
High-Power Lasers in Civil Engineering and Architecture
Sadao Nakai; Lloyd A. Hackel; Wayne C. Solomon, Editor(s)

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