インサート材を用いた薄アルミナとアルミニウムの超音波接合

概要

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This paper describes an experimental study of ultrasonic welding of thin ceramics and metals using inserts. Ultrasonic welding has made it possible to join various thick ceramics, such as Al_2O_3 and ZrO_2, to aluminum at room temperature, quickly and easily compared to other welding methods. However, for thin ceramics, which are brittle, it is expected that welding is difficult to perform without causing damage. In this experiment, anodizing aluminum oxide film was used as thin alumina ceramics. Actually, aluminum was not able to be directly welded to an anodic oxide film without breakage. Vapor deposition of aluminum alloys (target material: A2017, A6061, A7075) on the film was contributed as an effective insert layer for welding at low pressure and a short duration without causing damage to the anodic oxide film. For example, the ultrasonic welding of thin Al_2O_3/Al was accomplished under the conditions of ultrasonic horn top amplitude of 32μm, welding pressure of 5MPa and required duration of 0.1s.
社団法人日本材料学会の論文
2005-11-15