JSME Materials and Processing Conference (M&P)
Online ISSN : 2424-2861
10.2
会議情報
621 CROWNING PROCESS OF P/M GEARS FOR AUTOMOTIVE TRANSMISSIONS BY FINISH ROLLING USING SCREW-SHAPED TOOL
T. TakemasuT. Ozaki
著者情報
会議録・要旨集 フリー

p. 533-538

詳細
抄録
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 and to improve the tooth profile accuracy and the load carrying capacity simultaneously. These objectives are almost attained in the previous paper except the crowning in tooth trace direction, which is the essential matter for gears in automotive transmissions. In this paper, a numerical control finish rolling machine is developed to enable the crowning process. In this new apparatus, the amount of radial feed of the tool is synchronized with the axial feed of the workpiece to put a specified crowning on the gear teeth. A simple calculation method is proposed to decide the rolling orbit for crowning. The crowning profile predicted in the analysis agree well with the experimental ones. Gears with a good tooth profile and good surface finish can be obtained.
著者関連情報
© 2002 The Japan Society of Mechanical Engineers
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