scholarly journals An investigation into martensitic transformation in hot stamping process

2007 ◽  
Author(s):  
M. Naderi ◽  
W. Bleck
Keyword(s):  
Martensitic Transformation ◽  
Hot Stamping ◽  
Stamping Process

Effect of Pre-Heating Temperature on Microstructure and Properties of 22MnB5 Steel Hot Stamping

2014 ◽  
Vol 1063 ◽  
pp. 108-111
Author(s):  
Ping Li ◽  
Yu Sheng Liu ◽  
Tian Zong Gongzi ◽  
Ke Min Xue
Keyword(s):  
Mechanical Properties ◽  
Tensile Strength ◽  
Martensitic Transformation ◽  
Heating Temperature ◽  
Hot Stamping ◽  
High Strength ◽  
High Tensile Strength ◽  
22Mnb5 Steel ◽  
Stamping Process ◽  
Ultra High Strength Steel

The hot stamping process of ultra high strength steel(UHSS) sheet is an innovative way to manufacture the components with a ultra high tensile strength. The sufficiency of martensitic transformation in formed component is affected by pre-heating temperature of blank directly. In this paper, experiments of heating UHSS blanks to 700°C, 800°C, 900°C and 1000°C were implemented to investigate the effect of pre-heating temperature on the formed component’s microstructure and mechanical properties. The results indicate that 900°C is the best pre-heating temperature for hot stamping process. The microstructure of formed component is all fine and uniform martensite. Meanwhile, tensile strength and vickers hardness raise up to 1580MPa and 450HV, respectively.

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.

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