二段充てん法による内はすば歯車の成形

DOI Web Site 参考文献7件

書誌事項

タイトル別名
  • Shaping of Internal Helical Gear by Two-Step Cold Extrusion
  • ニダン ジュウテンホウ ニ ヨル ウチハスバハグルマ ノ セイケイ

この論文をさがす

抄録

<tt>In a previous paper, we proposed a two-step cold extrusion method of shaping external spur gears and helical gears. In the present paper, we describe how this filling method is applied to the shaping of internal helical gears. A specially designed mandrel for an internal helical gear utilizing the two-step filling method was used to expand and the inner diameter of the cylindrical workpiece. The specifications of these gears are as follows: module </tt><tt>m</tt><tt>=1.0, 1.25 and 1.5 mm; helix angle </tt><tt>ß</tt><tt>=20 deg; number of teeth </tt><tt>Z</tt><tt>=12-15 and whole depth </tt><tt>h</tt><tt>=2.00 module. The materials used were aluminum A1200 and low carbon steel S15C. The criterion for shaping complete teeth is discussed primarily in terms of punch pressure and the reduction in the area and the expansion ratio of the inner diameter of the workpiece. The approach that we described here successfully produced a filled up internal helical gear with only a few percent reduction in area. The punch pressure was very low, far below the strength of the punch </tt><tt>material. </tt>

収録刊行物

  • 塑性と加工

    塑性と加工 54 (624), 64-68, 2013

    一般社団法人 日本塑性加工学会

参考文献 (7)*注記

もっと見る

キーワード

詳細情報 詳細情報について

問題の指摘

ページトップへ