Welding Experiments of Aluminum Alloy by Space GHTA Welding at ISS Orbital Pressure
スポンサーリンク
概要
- 論文の詳細を見る
As a feasible welding method in space, the authors previously proposed the space GHTA (Gas Hollow Tungsten Arc) welding process. However, space GHTA welding with a high-frequency device for arc start may cause electromagnetic noise problems for the computer equipment placed on the ISS (International Space Station). Therefore, in this report, welding experiments of space GHTA welding using aluminum alloy with a high-voltage DC device for arc start were carried out at the ISS orbital pressure, 10−5 Pa. It is clear from the experiments using a high-voltage DC device in a high-vacuum condition, that there is a shifting phenomenon in which the spark discharge shifts to either a glow discharge or an arc discharge when starting the arc. Welding projects in space need an arc discharge, so we investigated the effects of welding parameters on the arc formation ratio. As a result, space GHTA welding with a high-voltage DC device can be used for arc start when welding at the ISS orbital pressure.
- 2005-08-04
著者
-
IMAGAWA Kichiro
Japan Aerospace Exploration Agency
-
Sugiyama Satoshi
Advanced Course Of Mechanical Electrical Systems Engineering Takamatsu National College Of Technolog
-
SUITA Yoshikazu
Department of Mechanical Engineering, Takamatsu National College of Technology
-
Suita Yoshikazu
Department Of Electro-mechanical Systems Engineering Takamatsu National College Of Technology
-
TERAJIMA Noboru
Department of Electro-Mechanical Systems Engineering, Takamatsu National College of Technology
-
TSUKUDA Yoshiyuki
Department of Electro-Mechanical Systems Engineering, Takamatsu National College of Technology
-
FUJISAWA Shoichiro
Department of Electro-Mechanical Systems Engineering, Takamatsu National College of Technology
-
TAKAI Daisuke
Advanced Course of Mechanical Electrical Systems Engineering, Takamatsu National College of Technolo
-
Takai Daisuke
Advanced Course Of Mechanical Electrical Systems Engineering Takamatsu National College Of Technolog
-
Terajima Noboru
Department Of Electro-mechanical Systems Engineering Takamatsu National College Of Technology
-
Tsukuda Yoshiyuki
Department Of Electro-mechanical Systems Engineering Takamatsu National College Of Technology
-
Fujisawa Shoichiro
Department Of Electro-mechanical Systems Engineering Takamatsu National College Of Technology
-
Suita Yoshikazu
Department Of Electro-mechanical Systems Engineering Kagawa National College Of Technology
-
Terajima Noboru
Department Of Electro-mechanical Systems Engineering Kagawa National College Of Technology
関連論文
- Butt Welding Joint of Aluminum Alloy by Space GHTA Welding Process in Vacuum
- Effect of Long Time Orbit Exposure Test on Solid Lubricative Coating
- SB-8-32 Evaluation and Analysis of the First-Retrieved Unit of the Space Environment Exposure Device : SM/MPAC&SEED(Space Experiment)(SB-8. Results of Various Satellite Missions)
- Welding Experiments of Aluminum Alloy by Space GHTA Welding at ISS Orbital Pressure
- Controlling Parameters of Residual Stresses and Deformations in Welded Thin Cylindrical Shells
- Technique to Prevent Metal Deposition on Optical Components in Space Diode Laser Welding for Space Applications
- Development of Space DL Welding Process for Construction and Repair of Space Structures in Space
- GHTA Spot-Welding Experiments of Aluminum and Titanium Plates under a Simulated Space Environment
- UHV-Bonding and Reversible Interconnection
- Technique to Prevent Metal Deposition on Optical Components in Space Diode Laser Welding for Space Applications