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Your search keyword '"Yoshiaki Daichi"' showing total 5 results
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5 results on '"Yoshiaki Daichi"'

1. Surface Finishing of SKD 11 Tool Steel via Plasma-Based Electron Beam Irradiation

Author

Akira Okada, Yoshiaki Daichi, Yoshiyuki Uno, and Sadao Sano

Subjects
Materials science, Mechanical Engineering, Metallurgy, Plasma, engineering.material, Electron beam irradiation, Impact crater, Mechanics of Materials, Tool steel, engineering, Cathode ray, Surface roughness, General Materials Science, Electron beam-induced deposition, Surface finishing
Published
2007
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4. Investigation of the formation and energy density of high-current pulsed electron beams

Author

Sadao Sano, Kazuo Yamazaki, Zhigang Wang, and Yoshiaki Daichi

Subjects
electron beam, Materials science, General Chemical Engineering, Analytical chemistry, Polishing, General Chemistry, Plasma, Condensed Matter Physics, Microstructure, Surfaces, Coatings and Films, Corrosion, nonlinear regression, Machining, Cathode ray, Irradiation, Composite material, energy density, Beam (structure), plasma
Abstract

High-current pulsed electron beams (HCPEB) irradiation is a new potential method to polish hard steels and alloys. After HCPEB machining, the performance of machined surface, such as corrosion resistance and micro-structure, has been greatly improved. Because of its good performance, HCPEB irradiation is playing more and more important roles in polishing hard steels and alloys. However, it is not clear about the energy density of HCPEB under different beam conditions. In this study, experiments have been conducted to investigate the formation of HCPEB and its energy density. Then, effects of argon gas pressure and the applied voltage to solenoid coil on the formation of HCPEB are analyzed. Finally, a mathematical model is developed to describe the relationship between five dominant beam parameters with the energy density of HCPEB, which has a good accuracy in comparison to the experimental results.

Published
2007
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5. Investigation of the Formation and Energy Density of High-Current Pulsed Electron Beams.

Author

Yoshiaki Daichi, Zhigang Wang, Kazuo Yamazaki, and Sadao Sano

Subjects
ELECTRON beams, IRRADIATION, CORROSION & anti-corrosives, SOLENOIDS
Abstract

Abstract  High-current pulsed electron beams (HCPEB) irradiation is a new potential method to polish hard steels and alloys. After HCPEB machining, the performance of machined surface, such as corrosion resistance and microstructure, has been greatly improved. Because of its good performance, HCPEB irradiation is playing more and more important roles in polishing hard steels and alloys. However, it is not clear about the energy density of HCPEB under different beam conditions. In this study, experiments have been conducted to investigate the formation of HCPEB and its energy density. Then, effects of argon gas pressure and the applied voltage to solenoid coil on the formation of HCPEB are analyzed. Finally, a mathematical model is developed to describe the relationship between five dominant beam parameters with the energy density of HCPEB, which has a good accuracy in comparison to the experimental results. [ABSTRACT FROM AUTHOR]

Published
2007
Full Text
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