SHEET METAL MACHINING METHOD AND SHEET METAL MACHINING DEVICE

Title:

SHEET METAL MACHINING METHOD AND SHEET METAL MACHINING DEVICE

Document Type and Number:

WIPO Patent Application WO/2014/073359

Kind Code:

A1

Abstract:

In a sheet metal machining process obtained from a raw material manufacturing process (10) and a raw material forming process (20), a punch load and displacement curve (131) is acquired during punching in the raw material manufacturing process (10). The punch load and displacement curve is compared with punches and displacement curves in a raw material property database collected beforehand by analysis (142) and experimentation (141). The material properties (132) of the raw material are thereby identified. The forming conditions (133) for forming the raw material in the subsequent raw material forming process (20) such as bending or pressing are determined on the basis of the identified material properties (132) from a forming condition database that has been collected beforehand by analysis (143) and the raw material is subjected to sheet metal machining using the raw material forming process (20).

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Inventors:

TERAMAE TOSHIYA (JP)
MURASATO YUKI (JP)

Application Number:

PCT/JP2013/078413

Publication Date:

May 15, 2014

Filing Date:

October 21, 2013

Export Citation:

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Assignee:

HITACHI LTD (JP)

International Classes:

B21D5/02; B21D28/00

Foreign References:

JP2009119522A	2009-06-04
JP2003194686A	2003-07-09
JPH07112216A	1995-05-02
JP2002178037A	2002-06-25