METAL PIPE JOINING DEVICE AND METAL PIPE JOINING METHOD USING SAME

Title:

METAL PIPE JOINING DEVICE AND METAL PIPE JOINING METHOD USING SAME

Document Type and Number:

WIPO Patent Application WO/2013/172244

Kind Code:

A1

Abstract:

A joining device (10) that butts together and joins metal pipes by means of friction stir welding from the interiors of the metal pipes, and that addresses the problems of preventing the generation of opening defects at the inner surface of the metal pipes and of preventing the generation of sputter when the pipes are butted together and joined, said joining device being equipped with: a friction stir unit (20), which has a joining tool (22) at the tip of which is formed a probe (21) that is pushed into the parts to be joined, a retaining jig (25) that holds the joining tool (22) so as to be capable of moving in the direction of the central axis (R) of the joining tool, and a first motor (30) that rotates the joining tool (22) around the central axis (R) via the holding jig (25); a pressing part (35), which presses the joining tool (22) in the direction of the central axis (R); and a circumferential direction movement unit (40), which has a tubular case (41) to one end of which the holding jig (25) and the pressing part (35) are attached, and a second motor (44) that moves the joining tool (22) in the circumferential direction along the inner circumferential surface of the metal pipes (11), via the case (41).

More Like This:

JP7432453	Friction stir welding equipment and friction stir welding method
JP4661367	Friction point joining method and its equipment
WO/1993/009908	FRICTION WELDING APPARATUS

Inventors:

SUMI TOMONORI (JP)
IKEZAKI TORU (JP)
KISHIGUCHI TETSUYA (JP)
KISAKA YUJI (JP)

Application Number:

PCT/JP2013/063024

Publication Date:

November 21, 2013

Filing Date:

May 09, 2013

Export Citation:

Click for automatic bibliography generation Help

Assignee:

NIPPON STEEL & SUMIKIN ENG CO (JP)

International Classes:

B23K20/12; B23K37/053; F16L13/02

Domestic Patent References:

WO2011053361A2

2011-05-05

Foreign References:

JPH11226756A	1999-08-24
JPH06339792A	1994-12-13
JPH0929489A	1997-02-04
JPH11285896A	1999-10-19
US6364197B1	2002-04-02
JP2006518671A	2006-08-17
JP2007083267A	2007-04-05

Attorney, Agent or Firm:

SHIGA Masatake et al. (JP)
Masatake Shiga (JP)

Download PDF:

View/Download PDF PDF Help

Previous Patent: LIQUID CRYSTAL DISPLAY

Next Patent: METHOD FOR MANUFACTURING GLASS MOLDING AND LOWER DIE FOR MOLDING GLASS