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http://dx.doi.org/10.14775/ksmpe.2019.18.6.033

Effect of Die Cooling Time on Component Mechanical Properties in a Front Pillar Hot Stamping Process  

Lee, Jaejin (GyeongBuk Hybrid Technology Institute)
Kang, Dakyung (GyeongBuk Hybrid Technology Institute)
Suh, Changhee (Daegu Mechatronics & Materials Institute)
Lim, Yonghee (Shinhwa ST)
Lee, Kyunghoon (Solution Lab)
Han, Soosik (Kumoh National Institute of Technology)
Publication Information
Journal of the Korean Society of Manufacturing Process Engineers / v.18, no.6, 2019 , pp. 33-38 More about this Journal
Abstract
Researchers have recently begun to study hot stamping processes to shorten the mold cooling time and improve productivity. These publications explain that the mold cooling time can be reduced by using a curved cooling channel, where the mold surface is processed to a uniform depth, instead of a straight cooling channel that uses the conventional gun drilling machine. This study investigates the characteristics of the front pillar of an automobile after using a mold with a curved cooling channel. To analyze the change in properties, we used a 1.6 mm boron steel blank and heated the prototype at $930^{\circ}C$ for 5 minutes. Next, we formed the prototype with a load of about 500 tons while varying the mold cooling time between 1 and 10 seconds. We subjected each prototype specimen to a tensile strength test, a hardness test, and a tissue surface observation.
Keywords
Hot Stamping; Front Pillar; Curved Cooling Channel; Die;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
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