2737 粒子衝突による薄板の突合わせ接合(S24-2 塑性加工(2),S24 塑性加工の動向とその展開)

概要

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The butt joining of thin sheets using a shot peening process was investigated. Shot peening improves the performance of engineering components. In this process, the substrate undergoes a large plastic deformation near its surface due to a hit with many shots. Thus, at the edge of substrate, large plastic flow characterized by a shear droop occurs. If the dissimilar sheets with the step edge are connected without level difference and then shot-peened the connection, the sheets can be joined due to the plastic flow generated by the large plastic deformation during shot peening. In the experiment, a compressed-air-type shot peening machine was employed. The influence of processing conditions on the joining of the dissimilar sheets was examined. The joint strength increased with the kinetic energy of shots. It was found that the present method using shot peening process was effective for butt joining dissimilar sheets.
一般社団法人日本機械学会の論文
2007-09-07