Hot stamping method for manufacturing vehicle body parts
AssigneeMs Autotech Co., Ltd.
InventorsSung Ung KIM, Hyun Woo LEE, Jang Soo KIM
Life of this patent
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Abstract
Provided is a hot stamping method for manufacturing high strength vehicle body parts. The hot stamping method includes: high frequency induction heating a blank in a first heating furnace while transferring the blank; heating the heated blank to an austenitization temperature or more of a corresponding blank while transferring the heated blank from the first heating furnace to a second heating furnace; and drawing the blank heated to the austenitization temperature or more in the second heating furnace to form and cool the blank by using a press forming apparatus. According to the hot stamping method, it is possible to achieve excellent productivity and reduce energy.
Claims4
A hot stamping method for manufacturing vehicle body parts, the hot stamping method comprising:
- a) performing a high frequency induction heating on a blank in a first heating furnace while transferring the blank, wherein the blank is obtained by blanking a boron steel sheet so as to have a size and a shape required for hot stamping and is not intentionally cooled in the high frequency induction heating;
- b) heating the blank transferred from the first heating furnace while transferring the blank in a second heating furnace, wherein the second heating furnace is a indirect heating furnace configured to transfer heat energy to the blank through at least one of radiation and convection;
- and
- c) forming and cooling the blank transferred from the second heating furnace in a press forming apparatus, wherein the press forming apparatus comprises an upper die and a lower die each having a cooling channel formed therein.
Dependencies are inferred from the claim text.