SUS304とA6061を摩擦圧接した平滑丸棒ホーンの特性と強度

概要

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The authors developed a new type of horn named "simple round bar horn"which is based on a different magnification principle from a conventional one. The horn is constructed by connecting simple round bars of different specific acoustic impedance, which gives uniform cross section along its axis. However, two different materials must be joined firmly to endure any vibration stress for practical applications. In this paper, we have attemped to use friction-welded joints consisting of SUS 304 stainless steel and A6061 aluminum alloy as the simple round bar horn. The characteristics of the input-output displacement amplitude, of the elevated temperature and of the frequency are investigated experimentally on the friction-welded simple round bar horn and on the conventional horns of step and exponential type, consisting of SUS 304 and A6061 respectively. Furthermore, ultrasonic fatigue tests have been performed on the friction-welded simple round bar horns and A6061 monometallic bars. The results shows promising possibilities for this new type of horn.
社団法人日本機械学会の論文
1998-01-25