Structure body for use in friction stir welding

• US 20010009334A1
• Filed: 02/20/2001
• Published: 07/26/2001
• Est. Priority Date: 01/24/2000
• Status: Active Grant

• Current Assignee: Hideyuki Nakamura, Takeshi Kawasaki, Toshiaki Sagawa
• Original Assignee: Hideyuki Nakamura, Takeshi Kawasaki, Toshiaki Sagawa
• Inventors: Kawasaki, Takeshi, Nakamura, Hideyuki, Sagawa, Toshiaki
• Granted Patent: US 6,461,072 B2
• Time in Patent Office: Days
• US Class Current: 296/203.01
• CPC Class Codes: B23K 20/122 using a non-consumable tool, e.g. friction stir welding
• CPC Class Codes: B23K 2101/006 Vehicles
• CPC Class Codes: B23K 2101/045 Hollow panels
• CPC Class Codes: B23K 33/00 Specially-profiled edge portions of workpieces for making soldering or welding connections; Filling the seams formed thereby B23K11/14 takes precedence
• CPC Class Codes: Y10T 403/477 Fusion bond, e.g., weld, etc.
• CPC Class Codes: Y10T 428/12 All metal or with adjacent metals

Abstract

An abutted portion of face plates 12b and 22b of hollow frame members 10 and 20 is carried out according to a friction stir joining. Next, a connection member 30 is mounted, one end of the connection member 30 is abutted to an end portion of the face plate 11 of the hollow frame member 10. Under this condition, the abutted portion between the face plate 11 and the connection member 30 is carried out according to the friction stir joining. An overlapping portion between another end of the connection member 30 and the hollow frame member 20 is carried out according to the friction stir joining. According to demands, the connection member 30 and the face plate 21 of the hollow member 20 is welded. Without of regard of a dimension accuracy of the hollow frame member and the like, a good joining from one side face of the hollow frame member can be carried out.

Claims

1. A structure body comprising:

two hollow frame members which are joined;

each of said two hollow frame members includes two face plates, and between said two face plates and connected thereto are plural ribs; and

a first end portion of one of said two face plates projects beyond a second end portion, of the other of said two face plates of each hollow frame member;

the first, projected end portions of the face plates of the two hollow frame members are joined together by a friction stir welding;

a connection member is provided between the second end portions, of the other of the two face plates of the two hollow frame members, and respective end portions of the connection member are joined by friction stir welding to a connection portion of the second end portion of the other of said two face plates, of one of said two hollow frame members, and to a connection portion of the second end portion of the other of said two face plates of the other of said two hollow frame members and said ribs;

said friction stir welding between said one of said two hollow frame members and one end portion of said connection member is at an abutted portion of said one of said two hollow frame members and said connection member; and

said friction stir welding between the other of said two hollow frame members and the other end portion of said connection member is at an overlapping portion of said frame and said connection member.

2. A structure body according to

claim 1

, wherein the other of the two hollow frame members and the other end of the connection member are welded with a joining portion of the other of said two hollow frame members and the other end of said connection member arranged adjacent each other.

3. A structure body comprising:

a first hollow frame member, a second hollow frame member, and a third hollow frame member which are joined;

each of the three hollow frame members includes two face plates, and between said two face plates and connected thereto are plural ribs; and

a first end portion of one of said two face plates projects beyond a second end portion, of the other of said two face plates of each hollow frame member;

the second end portion of the other of said two face plates of said first hollow frame member and the second end portion of the other of said two face plates of said second hollow frame member are joined through a first connection member;

the other second end portion of the other of said two face plates of said second hollow frame member and the other end portion of the other of said two face plates of said third hollow frame member are joined through a second connection member;

the respective joinings of said connection members with the second end portions are friction stir weldings;

said friction stir weldings between said first hollow frame member and said first connection member and said friction stir welding between said second hollow frame member and said second connection member are abutting joinings; and

said friction stir welding between said second hollow frame member and said first connection member and said friction stir welding between said third hollow frame member and said second connection member are an overlapping joining.

4. A hollow frame member, comprising:

two face plates, and between the two face plates are plural ribs, the plural ribs being connected to each of the two face plates, and an end portion of one of said two face plates projects beyond an end portion of the other of said two face plates;

at said end portion of the other of said two face plates, in a width direction of the hollow frame member, a raised portion is provided; and

at the other end portion of the other of said two face plates, a slope face is provided.