Title:
HOT-STAMPED PART AND METHOD FOR MANUFACTURING SAME
Document Type and Number:
WIPO Patent Application WO/2023/210912
Kind Code:
A1
Abstract:
The present invention provides a method for manufacturing a hot-stamped part, comprising: a step of forming a blank by cutting a plated steel sheet in which a plating layer is formed on at least one surface of a base material; and a step of heating the blank in a heating furnace having a plurality of sections with different temperature ranges, wherein the step of heating the blank comprises: a multi-stage heating step of heating the blank step by step; and a soaking step of heating the blank heated in multi-stages at a temperature of Ac1 to 910 °C, and a temperature (an) in the soaking step and a total heating time (bn) in the step of heating the blank satisfy the following relational expression. 62 ≤ 91.81 + K - 0.022 x an - 0.23 x bn (wherein K in the relational expression is a material correction coefficient.
Inventors:
JANG MIN HO (KR)
KANG SEOK HYEON (KR)
PARK MIN SUH (KR)
HAN SEONG KYUNG (KR)
KANG SEOK HYEON (KR)
PARK MIN SUH (KR)
HAN SEONG KYUNG (KR)
Application Number:
PCT/KR2022/020567
Publication Date:
November 02, 2023
Filing Date:
December 16, 2022
Export Citation:
Assignee:
HYUNDAI STEEL CO (KR)
International Classes:
C21D9/46; B21D22/02; C21D8/02; C21D8/04; C23C2/06; C23C2/12
Foreign References:
| KR20210080176A | 2021-06-30 | |||
| KR20190001493A | 2019-01-04 | |||
| KR20210120477A | 2021-10-07 | |||
| KR20210080175A | 2021-06-30 | |||
| KR20210037106A | 2021-04-06 |
Attorney, Agent or Firm:
Y.P.LEE, MOCK & PARTNERS (KR)
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