Results 251 to 260 of about 807,470 (283)
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Hot forming of dolomite briquettes
Ceramics International, 1980Abstract Results of experiments to study the production of dolomite clinker having a density close to the theoretical density of pure sintered dolomite are discussed. Density values are reported for samples obtained by the following process: decarbonization of dolomite, hot briquetting at 300–700°C, firing the semi-product at 1500°C.
W. Piatkowski, B. Rózanowski
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Journal of Materials Processing Technology, 1992
Abstract This paper reviews die forging in Germany, discussing: the development of die forgings, cold forgings and warm forgings; the development of machines for massive forming and of their automation, flexibilization and control; the requirements of such machines, in particular considering their stiffness requirements and presenting the stiffness ...
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Abstract This paper reviews die forging in Germany, discussing: the development of die forgings, cold forgings and warm forgings; the development of machines for massive forming and of their automation, flexibilization and control; the requirements of such machines, in particular considering their stiffness requirements and presenting the stiffness ...
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Tribology of hot metal forming
Tribology International, 1998Many aspects of the tribology of hot metal forming are poorly understood. This leads to difficulties when modelling the forming operations to develop process improvements. It also handicaps the development of new tool materials, since the operating conditions with which they will have to cope are not fully described.
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Numerical modelling of hot forming processes
International Journal of Microstructure and Materials Properties, 2008In this paper, first, the state of the art of numerical modelling in hot forming processes will be overviewed. Then the paper briefly reviews the theoretical background of metal forming simulation, including the basic constitutive equations, and the information flow in process modelling.
Tisza, Miklós, Gál, G., Lukács, Zsolt
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1973
Tests are described in the use of a large tool for the hot kinetic forming of metals. The tool basically comprises (i) a barrel and breech assembly, used to accelerate a hot metal billet to a velocity of the order of 100 m/s, and (ii) a closed die-set into which the billet is projected so that it takes up the form of the die-set under the heavy inertia
R. Balendra, F. W. Travis
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Tests are described in the use of a large tool for the hot kinetic forming of metals. The tool basically comprises (i) a barrel and breech assembly, used to accelerate a hot metal billet to a velocity of the order of 100 m/s, and (ii) a closed die-set into which the billet is projected so that it takes up the form of the die-set under the heavy inertia
R. Balendra, F. W. Travis
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1970
This chapter discusses hot-consolidation of ceramic powders with and without additives, and hot working of ceramic bodies. Hot consolidation (e.g., by hot pressing) of powders without sintering additives is shown to generally produce the finest grain sizes.
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This chapter discusses hot-consolidation of ceramic powders with and without additives, and hot working of ceramic bodies. Hot consolidation (e.g., by hot pressing) of powders without sintering additives is shown to generally produce the finest grain sizes.
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Hot Forming of Sheet Titanium Alloy
SAE Technical Paper Series, 1966<div class="htmlview paragraph">Development of integrally heated draw dies and insulated die cases with a capability for accepting interchangeable die inserts greatly reduced problems of producing severely formed sheet titanium alloy airframe parts. Parts which were previously made in a multiple series of ambient temperature performing operations,
W. H. Edwards, R. C. Dickason
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On Hot Metal Gas Forming Process
Applied Mechanics and Biomedical Technology, 2003Hot Metal Gas Forming (HMGF) is a new metal forming process jointly developed by 15 automotive/aerospace companies/suppliers and one university under NIST-Advanced Technology Program [1, 2]. The primary goals of this program are (1) to achieve enhanced formability for automotive steels and aluminum alloys at high speeds, and (2) to reduce manufacturing
Philip E. Smith, Que-Tsang Fang, Xin Wu
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Hot Water Epilepsy: A Benign and Unrecognized Form
Journal of Child Neurology, 2000Hot water epilepsy is a reflex epilepsy. Seizures are provoked by hot water, and result from the association of both cutaneous and heat stimuli. Described mainly in India and Japan, the condition seems to be rare in Europe, where it occurs in young children. We report five infants aged from 6 months to 2 years.
C, Ioos +6 more
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Form effect and hot electron transport
Physics Letters A, 1991Abstract It is shown that in the case that the heat removal direction is perpendicular to that of the current, the geometrical form of one-temperature semiconductors may have a considerable effect on hot electron transport.
F.G. Bass, A.I. Vasker
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