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Microstructural analysis of hot press formed 22MnB5 steel [PDF]
AIP Conference Proceedings, 2017 This paper presents a microstructural study on hot press formed 22MnB5 steel for enhanced mechanical properties. Hot press forming process consists of simultaneous forming and quenching of heated blank. The 22MnB5 steel was processed at three different parameter settings: quenching time, water temperature and water flow rate. 22MnB5 was processed using
Nuraini Aziz +2 more
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Simulation of Thermal Distortion in Hot Press Forming with Dissimilar Material TWB
Advanced Materials Research, 2014 In order to predict the shape change in hot press forming of a TWB made with HPF1470 boron steel and HSLA340 micro-alloyed steel sheets, a coupled thermo-mechanical-metallurgical finite element model was developed to simulate the process. The simulation consisted of air cooling, forming, die-quenching and, finally, by a treatment designed to relax ...
H. H. Bok +4 more
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Kinetics of hot-pressing: The exponential form
Journal of Materials Science Letters, 1986where 0 is the relative density; t is the time (sec); P is the applied pressure (dyncm-2); q is the viscosity (poise); ~ is the strain rate (see-l); A, B are the constants; DE is the lattice-diffusion coefficient (cm 2 s e e l ) ; D b is the grain-boundary diffusion coefficient (cm z see -1); Q is the volume of vacancy (cm3); a~ is the effective stress
Lin, W. Y., Hon, M. H., Yang, Seng-Jenn
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Near-net-shape forming of alumina powder under hot pressing and hot isostatic pressing
International Journal of Mechanical Sciences, 1997Densification and deformation of alumina powder under hot pressing and hot isostatic pressing were investigated. Finite element calculations were performed by implementing constitutive equations for grain growth, power law creep and diffusional creep in the user defined subroutine CREEP of ABAQUS.
Kim, KT, Kwon, YS, Kim, HG
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Materials Science Forum, 2016
ACB (France) and its sister company Cyril Bath (USA) have a long experience in the fields of hydraulic presses and metal forming for the aerospace industry. This experience is particularly focused on the manufacturing of structural and engines parts. The purpose of this presentation is to show how the combination of both activities in the fields of Hot
Guillaume Sana +2 more
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ACB (France) and its sister company Cyril Bath (USA) have a long experience in the fields of hydraulic presses and metal forming for the aerospace industry. This experience is particularly focused on the manufacturing of structural and engines parts. The purpose of this presentation is to show how the combination of both activities in the fields of Hot
Guillaume Sana +2 more
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The Use of Hot-Isostatic Pressing to Process Nuclear Waste Forms
ASME 2009 12th International Conference on Environmental Remediation and Radioactive Waste Management, Volume 1, 2009ANSTO has developed a combination of tailored nuclear waste form chemistries coupled with the use of flexible hot-isostatic pressing processing technology to enable the successful incorporation of problematic nuclear wastes into dense, durable monoliths.
Martin W. A. Stewart +8 more
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Morphology of Iron-Zinc Coating for Hot Press Forming Steel
Materials Science Forum, 2016The coating morphology of a hot press forming steel galvanealed by HDPS (hot dipping process simulator) in laboratory was studied in the paper. The results show that, firstly from thermodynamic calculations, the intermetallics increased the melting point of Zn, and it is possible to avoid the melting and volatilization of zinc coating for hot press ...
Fang Fang +4 more
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Weld strength of laser-welded hot-press-forming steel
Journal of Laser Applications, 2012There is an increasing demand for ultrahigh-strength steel in automotive industries to facilitate the manufacture of lightweight vehicles without compromising their security features. Although transformation-induced plasticity and dual phase steels have strengths of under 1 GPa, boron-alloyed steel obtained after the hot-press process has a strength of
Minjung Kang, Cheolhee Kim, Jongsup Lee
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Key Engineering Materials, 2013
High performance composites are used in commercial applications in a steadily growing degree. This increase of advanced materials is accomponied with the development of fully automated fabrication processes. It aims to drive down the time and costs of the production while ensuring a high quality of the product.
Ulrich Sachs +4 more
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High performance composites are used in commercial applications in a steadily growing degree. This increase of advanced materials is accomponied with the development of fully automated fabrication processes. It aims to drive down the time and costs of the production while ensuring a high quality of the product.
Ulrich Sachs +4 more
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Advances in ceramic hot forming and pressing: Theory and practice
Ceramics International, 1977Abstract Advances in the understanding of the hot forming of ceramic materials and the mechanisms of sintering during the intermediate and final stages of densification during hot pressing are reviewed. The available diffusion and plastic flow models are critically examined and approaches to the development of quantitative multimechanism models for ...
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