SWASH PLATE TYPE PISTON PUMP MOTOR AND METHOD FOR MANUFACTURING THE SAME

摘要

Object: Increase seizing resistance and abrasion resistance of a swash plate support while improving productivity and quality. Means to Achieve the Object: The present invention provides a method for manufacturing a swash plate type piston pump motor 1 in which: a plurality of pistons 10 are arranged in a circumferential direction on a cylinder block 9 configured to rotate with a rotating shaft 5; the pistons 10 are guided along a swash plate 12 to reciprocate by rotation of the rotating shaft 5; a convex portion 32 of the swash plate 12 is slidably supported by a recess 22 of a swash plate support 20; and a wall 2e formed integrally with the swash plate support 20 is arranged on a normal to at least a part of a supporting surface 22a of the recess 22, wherein: the supporting surface 22a of the recess 22 of the swash plate support 20 is quenched by irradiating the supporting surface 22a with laser light L1 and L2 while causing the laser light L1 and L2 to scan the supporting surface 22a; and outputs of the laser light L1 and L2 are changed in accordance with incidence angles ±1 and ±2 of the laser light L1 and L2 with respect to the supporting surface 22a.