Title:
METHOD AND APPARATUS MANUFACTURING HOT PRESS FORMED PARTS FOR MULTI-STEP PROCESS
Document Type and Number:
WIPO Patent Application WO/2022/019506
Kind Code:
A1
Abstract:
Provided are a method and apparatus for manufacturing hot press formed parts for a multi-step process, the method comprising: a heating step for heating a strip material; a transferring step for transferring the heated strip material to a processing apparatus having mounted on a press a plurality of molds comprising a notching mold and/or a blanking mold, a forming mold, and a trimming mold; a notching step, for obtaining a notched material connected to the strip by means of a web portion by cutting a part of the material by means of the notching mold, and/or a blanking step for obtaining a blanked material separated from the strip by cutting a part of the material by means of the blanking mold; a forming step of transferring and positioning the material which has gone through the notching step and/or the blanking step near the forming mold, and then forming the material by means of the forming mold; and a trimming step for removing, by means of the trimming mold, an outer edge portion of the material which is unnecessary for a final product shape.
Inventors:
KIM HONG-GEE (KR)
SON HYUN-SUNG (KR)
SON HYUN-SUNG (KR)
Application Number:
PCT/KR2021/008081
Publication Date:
January 27, 2022
Filing Date:
June 28, 2021
Export Citation:
Assignee:
POSCO (KR)
International Classes:
B21D37/08; B21D28/02; B21D31/02; B21D37/16; B21D43/05
Foreign References:
KR101149176B1 | 2012-05-25 | |||
US20170175222A1 | 2017-06-22 | |||
JP2007144495A | 2007-06-14 | |||
KR20200076662A | 2020-06-29 | |||
US20160059295A1 | 2016-03-03 | |||
KR20060054479A | 2006-05-22 |
Other References:
See also references of EP 4186612A4
Attorney, Agent or Firm:
C&S PATENT AND LAW OFFICE (KR)
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