S0301-5-3 SUP10ばね鋼の疲労強度に及ぼすFPB処理による表面改質効果(軽合金と表面改質処理(2))

概要

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The FPB (Fine Particle Bombarding) process attracts attention as a new surface-preparation technique. The effect which the surface modification effect by this FPB process has on the fatigue strength of spring steel was investigated. It proved that surface roughness decreases and the hardness near surface rises rather than a shot peening process as compared with a shot peening process. As a result of comparing the shot time of a FPB process, hardness also increased as the shot time became long. The FPB process showed the value higher than a shot peening process by lowering of surface roughness, and the rise of hardness as a result of the fatigue test. These results showed that the FPB process was effective in the betterment in the fatigue strength of spring steel.
社団法人日本機械学会の論文
2009-09-12