| 摘要 |
PROBLEM TO BE SOLVED: To improve power transmission efficiency of a pair of gears by forming dimples capable of sufficiently holding lubricating oil on a tooth flank, while maintaining tooth flank strength. SOLUTION: Many dimples are formed by shot peening 22 and mirror surface shot peening 22a as jet machining on tooth flanks of the gears for which cutting 21 is performed. Flat surfaces are formed on the tooth flanks by removing a pointed end between the dimples by abrasive grain flow machining 24 and mirror surface shot peening machining 24a as surface polishing. Thus, the lubricating oil is stored in the tooth flanks formed with the dimples and the flat surfaces. When the pair of gears are engaged with each other, the lubricating oil is held between the tooth flanks to improve transmission efficiency of power via the gear, while enhancing surface pressure strength. COPYRIGHT: (C)2005,JPO&NCIPI |
