Laser processing of metal surfaces for increasing paint adhesion

Tomiyasu Hirose; Hideki Ichihara; Kenji Sugimoto; Kazuo Sasazawa; Shouji Shibasaki

doi:10.1117/12.375196

14 January 2000 Laser processing of metal surfaces for increasing paint adhesion

Tomiyasu Hirose, Hideki Ichihara, Kenji Sugimoto, Kazuo Sasazawa, Shouji Shibasaki

Proceedings Volume 3887, High-Power Lasers in Civil Engineering and Architecture; (2000) https://doi.org/10.1117/12.375196
Event: Advanced High-Power Lasers and Applications, 1999, Osaka, Japan

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.

Citation Download Citation

Tomiyasu Hirose, Hideki Ichihara, Kenji Sugimoto, Kazuo Sasazawa, and Shouji Shibasaki "Laser processing of metal surfaces for increasing paint adhesion", Proc. SPIE 3887, High-Power Lasers in Civil Engineering and Architecture, (14 January 2000); https://doi.org/10.1117/12.375196

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