METHOD OF JOINING MEMBERS TOGETHER

Title:

METHOD OF JOINING MEMBERS TOGETHER

Document Type and Number:

WIPO Patent Application WO/2007/119777

Kind Code:

A1

Abstract:

A method of joining members together, joining a second member to a first member constructed from a tubular body with hollow sections partitioned by a partition wall. The first member (1) is inserted into an insertion hole (6) formed in the second member (5).A die segment (11a) of a die (11) and a wedge segment (19a) of a mandrel (18) are placed in each hollow section (3) of the first member (1). Then, each wedge segment (19a) is inserted into a wedge hole segment (14a) of a corresponding die segment (11a) with a partition wall (4) of the first member (1) sandwiched by the wedge segments (19a, 19a). As a result, each die segment (11a) of the die (11) is moved radially outward of the first member (1). This expands that section (2a) of the first member (1) that is inserted in the insertion hole (6) and expands also portions axially both sides of the section (2b, 2b). Thus, the first member (1) and the second member (5) are joined.

Inventors:

MIYAZAKI MASAHIRO (JP)
KAWAMATA YASUJI (JP)

Application Number:

PCT/JP2007/058052

Publication Date:

October 25, 2007

Filing Date:

April 12, 2007

Export Citation:

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Assignee:

SHOWA DENKO KK (JP)
MIYAZAKI MASAHIRO (JP)
KAWAMATA YASUJI (JP)

International Classes:

B21D39/06; B21D39/20

Foreign References:

JPS621385Y2	1987-01-13
JPS4213391B1
JPH10118729A	1998-05-12
JP2002224743A	2002-08-13
JPH048818A	1992-01-13
JPH1136859A	1999-02-09
JP2006111087A	2006-04-27

Other References: