外径絞りあるいは内径拡張を伴う冷間押出しによるスプライン穴を持つ平歯車の成形

吉田 始, 坂井田 喜久, 中村 保, 早川 邦夫, 磯谷 章, 矢代 茂樹

研究成果: Contribution to journalArticle査読

抄録

The shaping conditions for a spur gear with an inner spline by cold extrusion by reducing the outer diameter or expanding the inner diameter of the workpiece were examined experimentally. The specifications of the spur gear examined are as follows: module<i> m</i>=1.0-2.0, number of teeth <i>Z</i>=22-13, and tooth depth <i>h</i>=2.25<i>m</i>; those of the inner spline are as follows: module <i>ms</i>=1.0, number of teeth <i>Z</i>=8-16, and tooth depth <i>hs</i>=1.25<i>m</i>. The tested material is low-carbon steel, S15C. The outer and inner diameters of the workpiece, inner spline tip diameter, and mandrel small and large diameters were varied to examine the effect of the reduction in area. It is found that well-shaped spur gears and inner splines can be produced. The shaping conditions are closely connected with the reduction in area. The accuracy of the shaped spur gear was about 6~8 Grade in the old JIS. The punch and mandrel needed pressure for the shaping are much lower than the strength of the material.
寄稿の翻訳タイトルCold Extrusion of Spur Gear with Inner Spline with Reduction in Outer Diameter or Expansion of Inner Diameter of Workpiece
本文言語日本語
ページ(範囲)262-266
ページ数5
ジャーナル塑性と加工
54
626
DOI
出版ステータス出版済み - 3 25 2013

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