Results 291 to 300 of about 512,795 (332)

Development of Hot Press Machine for Superplastic Forming Technology

Advanced Materials Research, 2011
In most superplastic forming process, one or more sheets of superplastic grade materials are heated and forced onto or into single surface tools by gas pressure. Since the assembly includes only clamping dies, temperature chamber and regulated gas pressure to provide forming force, the assembly is easy to use for aircraft components. However, it is not
Ho Sung Lee, Jong Hoon Yoon, Joon Tae Yoo, Yeng Moo Yi   +3 more
openaire   +1 more source

Morphology of Iron-Zinc Coating for Hot Press Forming Steel

Materials Science Forum, 2016
The 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, Kuan Hui Hu, Hai Li Wei, Yi Ming Chen, Feng Huang   +4 more
openaire   +1 more source

Hot Forming and Superplastic Forming: Presses Evolution and New Applications in the Aerospace Industry

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, Alain Petiot, Arnaud Giraudet   +2 more
openaire   +1 more source

Thermo-Mechanical Coupled Analysis of Hot Press Forming with 22MnB5 Steel

International Journal of Automotive Technology, 2019
This paper mainly concerns the thermo-mechanical analysis to evaluate the process parameters in the hot press forming with the 22MnB5 sheet such as the austenitization temperature, transport and quenching time for enhancing the efficiency in the production cycle. It is noted that the transport time is most influencing process parameter in the hot press
Hyung-gyu Kim, Chanhee Won, Seungho Choi, Moon-gyu Gong, Joon-gyu Park, Heejong Lee, Jonghun Yoon   +6 more
openaire   +1 more source

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, 2009
ANSTO 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, Sam A. Moricca, Tina Eddowes, Yingjie Zhang, Eric R. Vance, Gregory R. Lumpkin, Melody L. Carter, Mark Dowson, Michael James   +8 more
openaire   +1 more source

TiAl composites formed from elemental powders by hot-isostatic pressing processing

Journal of Materials Science Letters, 1993
Recently several studies have produced intermetallics and intermetallic composites from elemental powders using self-propagating, high-temperature synthesis (SHS) [1-3]. Of particular interest has been the formation of titanium aluminides [4]. It has been observed that by preheating a Ti and A1 powder mixture, by increasing the sintering time or by ...
H. E. Maupin, J. C. Rawers
openaire   +1 more source

Composites based on aluminum and boron nitrides formed during hot pressing

Powder Metallurgy and Metal Ceramics, 2009
The paper examines how MoSi2, ZrO2, and SiO2 additions influence the phase formation and properties of hot-pressed AlN–BN (АBN) composites. It is established that new hardening phases are synthesized in the hot pressing of composite materials. The developed composites have higher strength than sintered ABN and retain oxidation resistance, excellent ...
O. N. Grigor’ev, N. D. Bega, T. V. Dubovik, O. D. Shcherbina, V. I. Subbotin, A. A. Rogozinskaya, L. A. Klochkov, I. L. Berezhinskii, V. E. Matsera, V. V. Lychko, P. V. Mazur   +10 more
openaire   +1 more source

Advances in ceramic hot forming and pressing: Theory and practice

Ceramics International, 1977
Abstract 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 ...
openaire   +1 more source

Numerical Modeling of Hot Press Forming Process of Boron Steel Tube

AIP Conference Proceedings, 2010
A hot press forming process consists of forming at the elevated temperature and rapid quenching, which induces phase transformation and results in the press hardening of steel parts. In this study, the hot press forming process of boron steel tube was analyzed by applying different heat transfer coefficients which had been experimentally measured and ...
Oh Suk Seo, Suk Jin Yoon, Chang Hee Suh, Heon Young Kim, F. Barlat, Y. H. Moon, M. G. Lee   +6 more
openaire   +1 more source

Mechanism study on microgroove forming by ultrasonic vibration assisted hot pressing

Precision Engineering, 2016
Abstract Microgrooves with a pitch at wave length level are increasingly needed in the optical system. Conventionally, the accuracy is low in microgroove forming due to the incomplete filling in the cavity of microgroove mold, as well as the surface flaws appearing with the adhesion of the resin material to the mold surface.
Jiaqing Xie, Tianfeng Zhou, Yang Liu, Tsunemoto Kuriyagawa, Xibin Wang   +4 more
openaire   +1 more source