METHOD OF BENDING PROCESSING FOR METAL MATERIAL, BENDING PROCESSING APPARATUS, BENDING PROCESSING EQUIPMENT LINE AND BENDING-PROCESSED PRODUCED OBTAINED THEREBY

Title:

METHOD OF BENDING PROCESSING FOR METAL MATERIAL, BENDING PROCESSING APPARATUS, BENDING PROCESSING EQUIPMENT LINE AND BENDING-PROCESSED PRODUCED OBTAINED THEREBY

Document Type and Number:

WIPO Patent Application WO/2006/093006

Kind Code:

A1

Abstract:

A method of push-through bending processing for a metal material, comprising, while sequentially or continuously extruding a material to be processed from the upstream side, carrying out bending processing thereof on the downstream side, wherein the metal material is clamped by means of mobile roller dies and under controlling of the position and/or moving speed of the mobile roller dies, heated at a temperature range permitting local plastic deformation and permitting quench hardening by means of heating means and cooling means disposed on the periphery of the metal material, followed by application of a bending moment and quenching. Further, there are provided a relevant bending processing apparatus and bending processing equipment line. Even in the event of processing to achieve continuous bending involving two-dimensionally different bending directions, or continuous bending involving three-dimensionally different bending directions, of the metal material, and even in the event of requirement of bending processing for a metal material with greater strength, a metal material with high shape fixability and uniform hardness distribution can be obtained efficiently at low cost. Accordingly, wide application thereof can be found as an increasingly sophisticated automobile part bending processing technology.

Inventors:

TOMIZAWA ATSUSHI (JP)
KIKUCHI FUMIHIKO (JP)
KUWAYAMA SHINJIRO (JP)

Application Number:

PCT/JP2006/303220

Publication Date:

September 08, 2006

Filing Date:

February 23, 2006

Export Citation:

Click for automatic bibliography generation Help

Assignee:

SUMITOMO METAL IND (JP)
SUMITOMO PIPE & TUBE CO LTD (JP)
TOMIZAWA ATSUSHI (JP)
KIKUCHI FUMIHIKO (JP)
KUWAYAMA SHINJIRO (JP)

International Classes:

B21D7/08; B21D7/16; B21D11/14

Foreign References:

JPH05302119A	1993-11-16
JPS477396Y1	1972-03-18
JPH06182454A	1994-07-05
JPH06182452A	1994-07-05
JPH0724533A	1995-01-27
JP2816000B2	1998-10-27
JPS5059264A	1975-05-22
JPH05212450A	1993-08-24
JPH10140251A	1998-05-26
JPS5059263A	1975-05-22
JP2816000B2	1998-10-27
JP3195083B2	2001-08-06
JPH05302119A	1993-11-16
US20030038489A1	2003-02-27
US4061005A	1977-12-06

Other References: