US Patent No: 6,354,483

Number of patents in Portfolio can not be more than 2000

Friction stir welding method

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Importance

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Abstract

The abutted face plates of frame members are joined using friction stir welding. Next, a connection member is mounted on seats formed in the frame members, while a projection of one end of the connection member is inserted into a groove of an end portion of a face plate of the frame member. Next, the other end of the connection member is temporarily welded to the face plate of the hollow frame member. With this condition, an abutted portion of the face plate and the connection member are joined using friction stir welding. Then, the overlapped portion between the other end of the connection member and the frame member is joined by friction stir welding. When the hollow frame members are welded from one side, a temporary welding of the connection member can be reduced.

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First Claim

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Patent Owner(s)

Patent OwnerAddressTotal Patents
HITACHI, LTD.TOKYO32320

International Classification(s)

  • [Classification Symbol]
  • [Patents Count]

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Ezumi, Masakuni Yamaguchi, JP 75 711
Fukuyori, Kazushige Kudamatsu, JP 33 118
Matsunaga, Tetsuya Kawasaki, JP 12 44

Cited Art

Patent Info (Count) # Cites Year
 
HITACHI, LTD. (3)
6,250,037 Structure body and hollow shape extruded frame member 35 1999
6,237,829 Friction stir welding apparatus 30 2000
6,276,591 Friction stir joining method 12 2000

Patent Citation Ranking

Forward Cites

Patent Info (Count) # Cites Year
 
HITACHI, LTD. (8)
6,599,641 Structural body formed by friction stir welding of hollow extruded frame members 5 2000
6,936,332 Extruded frame member for use in friction stir welding 6 2001
6,779,705 Friction stir welding method 0 2002
6,779,706 Frame member for friction stir welding 2 2002
6,983,873 Friction stir welding method and structure body formed 0 2003
6,966,481 Friction stir welding method 2 2003
6,840,426 Friction stir welding method and structure body formed by friction stir welding 15 2003
7,513,409 Friction stir welding method and structure body 0 2006
 
AEROPROBE CORPORATION (1)
8,397,974 Self-reacting friction stir welding tool with the ability to add filler material 0 2012
 
DAW TECHNOLOGIES, INC. (1)
7,360,343 Raised access floor 15 2003
 
LOCKHEED MARTIN CORPORATION (1)
6,582,539 Method for making large composite structures without use of an autoclave 7 2001

Maintenance Fees

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11.5 Year Payment $7400.00 $3700.00 $1850.00 Sep 12, 2013
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