ねじ状工具による鉄系焼結合金歯車の精密仕上げ転造 : 第1報,標準歯形工具による転造実験(機械要素,潤滑,工作,生産管理など)

概要

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The purpose of this study is to examine a practical application of a finish rolling process using a screw-shaped tool to consolidate the surface layer of sintered Fe alloy gear teeth and to improve the load carrying capacity. In this paper, preliminary rolling experiments of sintered Fe alloy rollers are firstly done. The consolidation in the surface layer of rollers saturates by setting the amount of rolling stock 200 μm or more. Secondary finish rolling experiments of sintered Fe alloy gears are conducted using a screw-shaped tool with a standard tooth profile. The void rate in the surface layer of gear teeth can be decreased to the target level by adjusting the amount of rolling stock normal to the tooth surface 150 μm or more. Gears with a good tooth profile and a good surface finish are produced through the rolling process of P/M gears with a convex tooth profile. It is also confirmed that the tooth trace accuracy can be greatly improved by two way rolling pass.
一般社団法人日本機械学会の論文
2002-11-25