scholarly journals Trimless Blank Design for Hot Stamping Process of a Sill Side

2016 ◽  
Vol 15 (5) ◽  
pp. 93-99 ◽  
Author(s):  
In-Kyu Lee ◽  
Sung-Yun Lee ◽  
Sang-Kon Lee ◽  
Min-Su Ahn
Keyword(s):  
Hot Stamping ◽  
Stamping Process ◽  
Blank Design

Two-scale simulation of the hot stamping process based on a Hashin–Shtrikman type mean field model

2019 ◽  
Vol 267 ◽  
pp. 124-140 ◽  
Author(s):  
Rudolf Neumann ◽  
Simone Schuster ◽  
Jens Gibmeier ◽  
Thomas Böhlke
Keyword(s):  
Field Model ◽  
Hot Stamping ◽  
Mean Field ◽  
Mean Field Model ◽  
Stamping Process

scholarly journals Numerical modeling and experimental verification of ductile damage in boron steel hot stamping process

2017 ◽  
Vol 207 ◽  
pp. 675-680
Author(s):  
Bingtao Tang ◽  
Chenchen Li ◽  
Guangchun Xiao ◽  
Wei Zhao ◽  
Huiping Li
Keyword(s):  
Numerical Modeling ◽  
Experimental Verification ◽  
Hot Stamping ◽  
Ductile Damage ◽  
Boron Steel ◽  
Stamping Process

scholarly journals Feasibility study of a novel hot stamping process for Ti6Al4V alloy

2018 ◽  
Vol 190 ◽  
pp. 08001
Author(s):  
Mateusz Kopec ◽  
Kehuan Wang ◽  
Yaoqi Wang ◽  
Liliang Wang ◽  
Jianguo Lin
Keyword(s):  
Mechanical Properties ◽  
Titanium Alloy ◽  
Phase Transformation ◽  
New Technology ◽  
Hot Stamping ◽  
Constant Strain Rate ◽  
Tensile Tests ◽  
Ti6al4v Titanium Alloy ◽  
Stamping Process ◽  
Forming Tools

To investigate the feasibility of a novel hot stamping process for the Ti6Al4V titanium alloy using low temperature forming tools, mechanical properties of the material were studied using hot tensile tests at a temperature range of 600 - 900°C with a constant strain rate of 1s-1. Hot stamping tests were carried out to verify the feasibility of this technology and identify the forming window for the material. Results show that when the deformation temperature was lower than 700°C, the amount of elongation was less than 20%, and it also had little change with the temperature. However, when the temperature was higher than 700°C, a good ductility of the material can be achieved. During the forming tests, parts failed at lower temperatures (600°C) due to the limited formability and also failed at higher temperatures (950°C) due to the phase transformation. The post-form hardness firstly decreased with the temperature increasing due to recovery and then increased due to the phase transformation. Qualified parts were formed successfully between temperatures of 750 - 850°C, which indicates that this new technology has a great potential in forming titanium alloys sheet components.

scholarly journals Study on Phase Transformation in Hot Stamping Process of USIBOR® 1500 High-Strength Steel

Metals ◽  
2019 ◽  
Vol 9 (10) ◽  
pp. 1119 ◽  
Author(s):  
Pengyun Zhang ◽  
Le Zhu ◽  
Chenyang Xi ◽  
Junting Luo
Keyword(s):  
Phase Transformation ◽  
High Strength Steel ◽  
Hot Stamping ◽  
High Strength ◽  
Transformation Kinetics ◽  
Martensite Content ◽  
Cct Curve ◽  
Stamping Process ◽  
Quenching Process ◽  
Kinetics Of

Based on the Kirkaldy-Venugopalan model, a theoretical model for the phase transformation of USIBOR® 1500 high strength steel was established, and a graph of the phase transformation kinetics of ferrite, pearlite, and bainite were plotted using the software MATLAB. Meanwhile, with the use of the software DYNAFORM, the thermal stamping process of an automobile collision avoidance beam was simulated. The phase transformation law of USIBOR® 1500 high-strength steel during hot stamping was studied through a simulation of the phase transformation during the pressure holding quenching process. In combination with the continuous cooling transformation (CCT) curve, the cooling rate of quenching must be greater than 27 °C/s to ensure maximum martensite content in the final parts, and the final martensite content increases as the initial temperature of the sheet rises.

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