Title:
STEEL MATERIAL FOR TAYLOR WELDED BLANK AND METHOD FOR MANUFACTURING HOT-STAMPED PART USING SAME STEEL
Document Type and Number:
WIPO Patent Application WO/2019/004541
Kind Code:
A1
Abstract:
Provided according to one aspect of the present invention is a steel material for a Taylor Welded Blank, which includes 0.04-0.06 wt% of carbon (C), 1.2-1.5 wt% of manganese (Mn), 0.01-0.10 wt% of titanium (Ti), 0.01-0.10 wt% of niobium (Nb), and the balance of iron (Fe) and evitable impurities, has a tensile strength (TS) of 550 Mpa or more, a yield strength (YS)of 300 Mpa or more, and an elongation (El) of 20% or more, and has a dual-phase structure of ferrite and martensite.
Inventors:
YOO BYUNG GIL (KR)
DO HYEONG HYEOP (KR)
SONG CHEE WOONG (KR)
KIM DO HAK (KR)
SHIN YOUNG MUN (KR)
JANG SOON GEUN (KR)
HONG SANG MUN (KR)
DO HYEONG HYEOP (KR)
SONG CHEE WOONG (KR)
KIM DO HAK (KR)
SHIN YOUNG MUN (KR)
JANG SOON GEUN (KR)
HONG SANG MUN (KR)
Application Number:
PCT/KR2017/015716
Publication Date:
January 03, 2019
Filing Date:
December 29, 2017
Export Citation:
Assignee:
HYUNDAI STEEL CO (KR)
International Classes:
C22C38/04; B21D22/02; B21D37/16; C21D8/02; C21D9/46; C21D9/50; C22C38/12; C22C38/14
Foreign References:
| KR20160079467A | 2016-07-06 | |||
| KR101318060B1 | 2013-10-15 | |||
| KR20160114019A | 2016-10-04 | |||
| KR20170035468A | 2017-03-31 | |||
| KR20160078563A | 2016-07-05 | |||
| KR20160042968A | 2016-04-20 |
Attorney, Agent or Firm:
AJU INTERNATIONAL LAW & PATENT GROUP (KR)
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