| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a variable displacement swash plate type hydraulic rotary machine in which a bearing member such as a bearing metal can be bonded stably to the tilting support surface of a swash plate support part to secure sufficient bonding strength. <P>SOLUTION: A bearing metal 14 made of a band-like body extending in a recessed curve shape along the tilting support surface 11A of a swash plate support body 11 having the leg of the swash plate in sliding contact therewith in a tiltable manner is bonded to the tilting support surface 11A in a plastic flow state. In this case, the bearing metal 14 is bonded to the tilting support surface 11A in the plastic flow state by pressing vertically the tip 16A of a tool 16 for friction stir bonding toward the tilting support surface 11A while turning the same. The surrounding of each bonding portion 14A is formed with an unbonded covered portion 14B covering the tilting support surface 11A from outside in a surface contact state. <P>COPYRIGHT: (C)2013,JPO&INPIT |
