GSD-9 EFFECT OF SHOT PEENING ON SURFACE DURABILITY OF PLASMA CASE-HARDENED SINTERED POWDER METAL ROLLERS(GEAR STRENGTH AND DURABILITY)
スポンサーリンク
概要
- 論文の詳細を見る
The machine elements made of sintered powder metals are generally cheaper than those made of conventional steels, while they have a disadvantage in the fatigue strength. Therefore, the purpose of this study is to investigate the influence of shot peening on the surface durability of sintered powder metal rollers under a slidingrolling contact condition, for improving the strength. The compressive residual stress, the hardness and the surface roughness of all shot-peened rollers increased and the pores were deformed by shot peening. Only the surface durabilities of mild shotpeened rollers were higher than that of unpeened roller in this study. The failure mode of the rollers was mainly spalling. The spalling cracks propagated from the sharp notches of the pores deformed by shot peening. Therefore, the result of this study clearly shows that the mild shot peening which dose not cause the sharp deformed pore and too large surface roughness should be selected in order to improve the surface durability of sintered rollers.
- 一般社団法人日本機械学会の論文
- 2001-11-15
著者
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YOSHIDA AKIRA
Department of Radiological Sciences, Hiroshima Prefectural College of Health Science
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SEKI Masanori
Department of Mechanical Engineering, Okayama University
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Seki Masanori
Department Of Mechanical Engineering Okayama University
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Seki Masanori
Department Of Bacteriology Faculty Of Medical Sciences Kyushu University
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OHUE Yuji
Department of IMSE, Kagawa University
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Ohue Yuji
Department Of Imse Kagawa University
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Yoshida Akira
Department Of Cardiology Kyoto National Hospital
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Yoshida Akira
Department Of Mechanical Engineering Okayama University
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Yoshida Akira
Department Of Agricultural Chemistry Nagoya University
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