SHOT-PEENING REFLECTION MEMBER, AND SHOT-PEENING METHOD USING THE MEMBER

摘要

Disclosed is a reflection member (1), which has its reflection portion (20) moved in the inner face of the hole of a pipe (W) from an entrance opening to an exit opening. In this movement, the reflection portion (20) is guided by guide portions (30) on the two sides. Shots, as projected to the inner face of the hole of the pipe (W), arrive, through the holes of the guide portions (30) on the entrance side, at the reflection portion (20), on which the shots are reflected toward the inner face of the hole of the pipe (W). As a result, the shots can be reflected to the inner side of the inner face of the hole at a curved portion (P), thereby to reduce their tendency, in which the shots might otherwise be offset to the outer side of the inner face of the hole at the curved portion (P). As a result, the pipe (W) can be thinned to acquire a high strength and a light weight at the same time. Thus, the reflection member (1) can be improved in workability and general versatility, and can be easily applied to the inner face of the hole at the curved portion of the pipe.