Processing Mechanism of High Energy Density Beam (Report I) : Mechanism of Drilling
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概要
- 論文の詳細を見る
A method obtaining transient distributions of two energy densities in the hole drilled by high energy density beams was proposed: w^^〜_v which passed through the plane perpendicular to the beam axis and w^^〜_s which was absorbed by the side wall of the hole. In a hole of acrylic resin drilled by CW CO_2 laser beam, maximum value of w^^〜_v reached 4〜5 times that of the focal point of the lens system used due to a "wall focusing effect". In the hole drilled by the electron beam, the wall-focusing effect was not recognized, and beam was rather scattered by the vapor. As the result, the CO_2 laser beam produced slender cylindrical hole and the electron beam produced fat hole. The method proposed here may be applied to measure the beam power.
- 大阪大学の論文
著者
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ARATA Yoshiaki
Osaka University
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Miyamoto Isamu
Dept. Of Welding Engineering Facullty Of Engineering Osaka University
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Miyamoto Isamu
Dept. Of Welding Engineering Faculty Of Engeneering Osaka University
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