Hot Stamping Parts Shear Mold Manufacturing via Metal Additive Manufacturing

Hot stamping uses boron (B) steel to simultaneously form parts at high temperatures while cooling the parts in a mold, which is advantageous because of the ability to freeze the forms. However, compared to conventional cold forming, this technique requires additional facilities that include heating...

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Main Author: Myoung-Pyo Hong
Format: Article
Language:English
Published: MDPI AG 2022-01-01
Series:Applied Sciences
Subjects:
Online Access:https://www.mdpi.com/2076-3417/12/3/1158
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author Myoung-Pyo Hong
author_facet Myoung-Pyo Hong
author_sort Myoung-Pyo Hong
collection DOAJ
description Hot stamping uses boron (B) steel to simultaneously form parts at high temperatures while cooling the parts in a mold, which is advantageous because of the ability to freeze the forms. However, compared to conventional cold forming, this technique requires additional facilities that include heating devices and additional time for cooling after forming at high temperatures. Additionally, because of the high strengths of hot stamping parts, shear process operations after molding tend to be difficult to perform as a continuous operation via press processing; thus, most operations depend on separate laser processing, which results in lower productivity and increased manufacturing costs. This limitation continues to be the most significant problem with this technology, therefore, restricting its commercialization because of increased mold manufacturing costs and durability problems. This study investigated a low-cost, high-functionality shear mold manufacturing method for 1.5 GPa grade hot-stamped components using heterogeneous metal additive manufacturing. After the concentrated stress in steel during the shearing processes was analyzed using a multi-physical analysis, metal additive manufacturing was used to fabricate the shear mold. Its life was evaluated through trial molding and compared with that for conventional technology. Finally, the commercialization potential of the newly developed method was assessed.
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spelling doaj.art-c9820797e69841769d61e3d38d5d96962023-11-23T15:52:54ZengMDPI AGApplied Sciences2076-34172022-01-01123115810.3390/app12031158Hot Stamping Parts Shear Mold Manufacturing via Metal Additive ManufacturingMyoung-Pyo Hong0Smart Manufacturing Technology R&D Group, Korea Institute of Industrial Technology, Daegu 711-883, KoreaHot stamping uses boron (B) steel to simultaneously form parts at high temperatures while cooling the parts in a mold, which is advantageous because of the ability to freeze the forms. However, compared to conventional cold forming, this technique requires additional facilities that include heating devices and additional time for cooling after forming at high temperatures. Additionally, because of the high strengths of hot stamping parts, shear process operations after molding tend to be difficult to perform as a continuous operation via press processing; thus, most operations depend on separate laser processing, which results in lower productivity and increased manufacturing costs. This limitation continues to be the most significant problem with this technology, therefore, restricting its commercialization because of increased mold manufacturing costs and durability problems. This study investigated a low-cost, high-functionality shear mold manufacturing method for 1.5 GPa grade hot-stamped components using heterogeneous metal additive manufacturing. After the concentrated stress in steel during the shearing processes was analyzed using a multi-physical analysis, metal additive manufacturing was used to fabricate the shear mold. Its life was evaluated through trial molding and compared with that for conventional technology. Finally, the commercialization potential of the newly developed method was assessed.https://www.mdpi.com/2076-3417/12/3/1158hot stamping parts shear moldtool steeladditive manufacturingfunctional metal powderdirect energy deposition
spellingShingle Myoung-Pyo Hong
Hot Stamping Parts Shear Mold Manufacturing via Metal Additive Manufacturing
Applied Sciences
hot stamping parts shear mold
tool steel
additive manufacturing
functional metal powder
direct energy deposition
title Hot Stamping Parts Shear Mold Manufacturing via Metal Additive Manufacturing
title_full Hot Stamping Parts Shear Mold Manufacturing via Metal Additive Manufacturing
title_fullStr Hot Stamping Parts Shear Mold Manufacturing via Metal Additive Manufacturing
title_full_unstemmed Hot Stamping Parts Shear Mold Manufacturing via Metal Additive Manufacturing
title_short Hot Stamping Parts Shear Mold Manufacturing via Metal Additive Manufacturing
title_sort hot stamping parts shear mold manufacturing via metal additive manufacturing
topic hot stamping parts shear mold
tool steel
additive manufacturing
functional metal powder
direct energy deposition
url https://www.mdpi.com/2076-3417/12/3/1158
work_keys_str_mv AT myoungpyohong hotstampingpartsshearmoldmanufacturingviametaladditivemanufacturing