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Please use this identifier to cite or link to this item: http://hdl.handle.net/11133/815

Title: ラック形歯車転造工具押し込み部の形
Other Titles: ラックガタ ハグルマ テンゾウ コウグ オシコミブ ノ カタチ
Shape on Die Tooth of Pushing Part in Rack Type Gear Rolling
Authors: 久野, 精市郎
KUNO, Seiichiro
Issue Date: 31-Mar-1989
Publisher: 愛知工業大学
Abstract: In this cold rolling made by means of rack type tools, the twin dies are each associated with a separate slider, and the work-piece mounted on the unrestrained arbor is rotated between those. The profile error of rolled teeth was controlled by the crest die formes at the each contact with the bottom land of work surface. The pinion blanks used for rolling are nearly equal in diameter to the pitch circle diameter of the finished part. As the operations start, the tooth tip is gradually taken charge of a tight force against the difference between a linier and a chordal pitch. Therefore, according to go on, the rolled force added to the tooth tip has to be declined gradually. Then, to the crest lines at the top flank, the several limited straight lines are adopted and those relations are formulated. Concretely, in the case of 28 teeth of module 1.5,the pressure angle of 25° and the whole depth of 2.7mm, the calculated results are indicated. That is, in the rack type gear rolling, the desirable crest shapes of pushing part on the rack die tools are designed respectively.
URI: http://hdl.handle.net/11133/815
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