Forming square cup with developed blank of aluminum sheet

• Hatanaka Nobuo

  Anan National College of Technology

• Iizuka Takashi

  Kyoto Institute of Technology

• Takakura Norio

  Kyoto Institute of Technology

• Yamaguchi Katsuhiko

  Kyoto Institute of Technology

• Nishimoto Kouji

  Technical Room, Anan National College of Technology

Bibliographic Information

Other Title

• アルミニウム板の展開ブランクを用いた角筒容器の成形
• アルミニウムバン ノ テンカイ ブランク オ モチイタ カクトウ ヨウキ ノ セイケイ

Abstract

Using conventional deep drawing method, it is difficult to make square cups taller than the length of straight side of punch in only one stage drawing. This is because, in case of using a conventional, the drawing resistance of blank material is too high to draw material into die hole by punch. From simple consideration, by using the developed blank, the flange portion of which is divided into four elements, the drawing resistance of blank material can be reduced considerably, and so this problem can be overcome. In this investigation, a deep drawing process of square cup was attempted using a developed blank instead of an octagonal or ellipse blank. By introducing assumption of the constant arc length, the shape of developed blank was designed. It was clarified that, when developed blanks with appropriate shape was employed, very tall square cups could be obtained in one stage drawing.

Journal

• Journal of Japan Institute of Light Metals

  Journal of Japan Institute of Light Metals 58 (6), 242-245, 2008

  The Japan Institute of Light Metals

Keywords

• square cup
• developed blank
• forming
• aluminum sheet

Details

• CRID: 1390001206340871680
• NII Article ID: 10021989287
• NII Book ID: AN00069773
• DOI: 10.2464/jilm.58.242
• ISSN: 18808018
• ISSN: 04515994
• NDL BIB ID: 9569517
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I9569517
• Text Lang: ja
• Data Source:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
• Abstract License Flag: Disallowed