JOINING METHOD FOR FRP TUBULAR BODY WITH METAL COMPONENT AND SHAFT COMPONENT

摘要

PROBLEM TO BE SOLVED: To provide a high bonding strength between an FRP tubular body and metal component to be put in serration coupling by allowing the teeth of serration to bite on the metal component to bite deeply into the FRP tubular body. SOLUTION: The machining part 5a of a tool 5 is fitted by pressure to a cylindrical shaft 2 made of fiber-reinforced resin(FRP), and by teeth 6a, the internal surface of the shaft 2 is furnished previously with a guide groove for teeth 4a of normal serration 4. The tool 5 is drawn off from the cylindrical shaft 2. The joining part 3a of a yoke 3 is fitted by pressure to the cylindrical shaft 2 in such an arrangement that the teeth 4a of the serration 4 are positioned alongside the guide groove. Because of previous provision of guide groove, it is unlikely that the shaft 2 gets on the teeth 4a to cause diameteric enlargement when the joining part 3a of the yoke 3 is fitted in by pressure, and the teeth 4a carve deeply the internal surface of the shaft 2 and bite into it deeply.