Mo添加鉄系焼結合金歯車の歯元転造加工による表面緻密化および高強度化 Improvement of Surface Densification and Fatigue Strength by Tooth Root Rolling of Sintered Ferrous Alloy Gear Added Mo

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Surface rolling were carried out using P/M spur gears of 0.6Mo-0.2C partially alloyed sintered steel with the density of 7.18 g/cm<SUP>3</SUP>. A CNC form rolling machine of axis intersection type was employed, and an unmodified screw-shaped rolling tool was prepared. Then, porosity distributions in the surface layer of rolled gear teeth root were measured and the effects of the surface rolling on the selective surface densification behaviors were evaluated. Moreover, to obtain higher fatigue strength, reverse rolling was introduced to standard gears. As a result, the porosities in the tooth root were sufficiently reduced at 700 μm feed in rolling process. Furthermore, a profile shifted gear was prepared to increase the effect of surface rolling. After case hardening, the single tooth bending fatigue durability reached to about 83 % of the case hardened wrought steel gears of SCM415.

収録刊行物

  • 粉体および粉末冶金

    粉体および粉末冶金 58(11), 693-696, 2011-11-15

    Japan Society of Powder and Powder Metallurgy

参考文献:  6件中 1-6件 を表示

被引用文献:  1件中 1-1件 を表示

  • 粉末成形

    粉体加工成形プロセス分科会 , 徳岡 輝和

    塑性と加工 53(619), 710-711, 2012-08-25

    J-STAGE 参考文献26件

各種コード

  • NII論文ID(NAID)
    10030479537
  • NII書誌ID(NCID)
    AN00222724
  • 本文言語コード
    JPN
  • 資料種別
    ART
  • ISSN
    05328799
  • NDL 記事登録ID
    023352551
  • NDL 請求記号
    Z17-274
  • データ提供元
    CJP書誌  CJP引用  NDL  J-STAGE 
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