Paper Title:

Fabrication of Fine Mesh Filter Screen with Pulsed Laser

Periodical Key Engineering Materials (Volume 516)
Main Theme Proceedings of Precision Engineering and Nanotechnology
Edited by W.B. Lee, C.F. Cheung and S. To
Pages 54-59
DOI 10.4028/www.scientific.net/KEM.516.54
Citation Keiji Ogawa et al., 2012, Key Engineering Materials, 516, 54
Online since June, 2012
Authors Keiji Ogawa, Heisaburo Nakagawa, Fumiya Murase, Susumu Nishida
Keywords Dross, Fine Mesh Filter, High-Aspect-Ratio Micro-Drilling, High-Speed Laser Drilling, Pulsed Laser
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Abstract

This paper proposes a novel manufacturing process of a fine mesh filter screen with a pulsed laser. The fine mesh filter screen, made of stainless steel, has many small diameter holes with high aspect ratio and fine pitch. In the conventional process, an electron beam drills in a vacuum. However, this is very costly because of the expensive equipment required and batch process. Therefore, a laser drilling process for small diameter hole drilling in air with higher flexibility was proposed. The post-processes after the laser drilling completed the fine mesh filter screen.