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

Translated title of the contribution: Cold Extrusion of Spur Gear with Inner Spline with Reduction in Outer Diameter or Expansion of Inner Diameter of Workpiece

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

Research output: Contribution to journalArticle

Abstract

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.
Original languageJapanese
Pages (from-to)262-266
Number of pages5
Journal塑性と加工
Volume54
Issue number626
DOIs
Publication statusPublished - Mar 25 2013

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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.

In: 塑性と加工, Vol. 54, No. 626, 25.03.2013, p. 262-266.

Research output: Contribution to journalArticle

吉田始 ; 坂井田喜久 ; 中村保 ; 早川邦夫 ; 磯谷章 ; 矢代茂樹. / 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. In: 塑性と加工. 2013 ; Vol. 54, No. 626. pp. 262-266.
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title = "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",
abstract = "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 m=1.0-2.0, number of teeth Z=22-13, and tooth depth h=2.25m; those of the inner spline are as follows: module ms=1.0, number of teeth Z=8-16, and tooth depth hs=1.25m. 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.",
author = "始 吉田 and 喜久 坂井田 and 保 中村 and 邦夫 早川 and 章 磯谷 and 茂樹 矢代",
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AU - 坂井田, 喜久

AU - 中村, 保

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AU - 磯谷, 章

AU - 矢代, 茂樹

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AB - 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 m=1.0-2.0, number of teeth Z=22-13, and tooth depth h=2.25m; those of the inner spline are as follows: module ms=1.0, number of teeth Z=8-16, and tooth depth hs=1.25m. 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.

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