DEVICE AND METHOD FOR FORMING THIN-PLATE SUBSTRATE

Title:

DEVICE AND METHOD FOR FORMING THIN-PLATE SUBSTRATE

Document Type and Number:

WIPO Patent Application WO/2014/208244

Kind Code:

A1

Abstract:

A protrusion (20a) on an upper mold (second mold, (20)) is provided so as to project downward toward a lower mold (first mold, (10)), the protrusion (20a) being provided with a tip for forming a stretched part (200a) obtained by partially pressing and stretching a preform (200), and a side edge for bending a portion continuous with the stretched part (200a) and forming a bent part (200b) in a space (10s) formed with the lower mold. A pulling part (30) pulls and stretches the bent part (200b). A controller (40) controls the actions of the lower mold (10) or the upper mold (20) and the pulling part (30). In a state in which the stretched part (200a) of the preform (200) remains pressed by the lower mold (10) and the protrusion (20a) of the upper mold (20), the bent part (200b) is pulled and stretched by the pulling part (30), and the shape of the protrusion (20a) is imparted to the preform (200) along the side edge of the protrusion (20a). The prescribed shape of the preform (200) is a concavo-convex shape such as one in which the bent part (200b) is formed.

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Inventors:

TAGUCHI NAOTO (JP)
YOSHITOME MASAAKI (JP)
HIGUCHI MANABU (JP)

Application Number:

PCT/JP2014/063872

Publication Date:

December 31, 2014

Filing Date:

May 26, 2014

Export Citation:

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Assignee:

NISSAN MOTOR (JP)

International Classes:

B21D13/02; H01M8/02

Foreign References:

JP2001259752A	2001-09-25
DE102010052738A1	2012-05-31
JPH09276960A	1997-10-28
JPS5484335U	1979-06-14
JP2005056820A	2005-03-03

Other References: