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Title:
METHOD FOR FIXING METAL MEMBERS AND AXIS MEMBER HAVING FLANGE
Document Type and Number:
Japanese Patent JP2008000817
Kind Code:
A
Abstract:

To solve the following problems: when plurality of axis-shaped metal members are fixed on a sheet-shaped member made of same or different kind of metal, it is necessary to design fit sizes of holes or apertures to be formed on the sheet material, it is required to have apertures with dimensional accuracy on the sheet material, and it is not possible to make products cheaply and in large quantities by the conventional method.

In the method for fixing metal members, holes or apertures having a size 10 to 50% smaller than a cross-sectional area of axial material are formed on the metal member, then one sheet-shaped member is heated to the temperature at which it becomes soft and thrust by other axis-shaped member which is kept at room temperature. A difference in hardness occurs between the one member which is softened by heating and the other member which is kept at room temperature. The other member is pushed into the one member so that heat from the one member is not transferred, and when the one member is thrust, the one member is sheared and causes adhesive force on a newly born sheared surface thereof. When the temperature of the one member falls, the one member makes thermal contraction, which squeezes the other member tightly. In this way, the one member and the other member are fixed firmly.


Inventors:
YOSHIMURA HYOJI
KOSAKATA KOZO
HANAMI SHINJI
MATSUMOTO MAKOTO
WATABE YUTAKA
Application Number:
JP2007137601A
Publication Date:
January 10, 2008
Filing Date:
May 24, 2007
Export Citation:
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Assignee:
NICHIDAI KK
ARAI KOGYO KK
KOSAKATA KOZO
UNIV OSAKA
International Classes:
B21D39/00; F16B4/00; F16D1/09
Domestic Patent References:
JPS57130724A1982-08-13
JPH06126353A1994-05-10
JPH0615829U1994-03-01
JPS63290630A1988-11-28
JPS57130724A1982-08-13
JPH06126353A1994-05-10
Other References:
JPN6012061711; '植込鍛接による塑性結合法の開発' 平成18年度塑性加工春季講演会講演論文集 , 20060510, 231-232頁, 社団法人 日本塑性加工学会
Attorney, Agent or Firm:
Tetsuya Mizogami
Mizogami Mitsuyoshi
Yoshinori Iwahara
Susumu Yamamoto