Results 251 to 260 of about 116,849 (278)

High-Pressure Die-Casting: Contradictions and Challenges

JOM, 2015
High-pressure die casting (HPDC) is particularly suitable for high production rates and it is applied in several industrial fields; actually, approximately half of the world production of light metal castings is obtained by this technology. An overview of the actual status of HPDC technology is described in the current work, where both critical aspects
BONOLLO, FRANCO, TIMELLI, GIULIO, N. Gramegna   +2 more
openaire   +3 more sources

Heat Treatment of High-Pressure Die Castings

Metallurgical and Materials Transactions A, 2007
High-pressure die-cast Al alloys cannot normally be heated at high temperatures due to the presence of pores containing entrapped gases, which lead to the formation of surface blisters. It has been found that blistering can be avoided by using considerably shorter solution-treatment times and lower temperatures.
R.N. Lumley, R.G. O’Donnell, D.R. Gunasegaram, M. Givord   +3 more
openaire   +1 more source

Gas content in high pressure die castings

Journal of Materials Processing Technology, 2011
This paper presents the results of a quantitative study of the gas level in various types of castings from the high pressure die casting (HPDC) process using a vacuum fusion method. It was found that the major part of the gas was from the air entrapment during cavity filling.
Laihua Wang, Peter Turnley, Gary Savage
openaire   +1 more source

Feeding Mechanisms in High-Pressure Die Castings

Metallurgical and Materials Transactions A, 2010
This work focuses on understanding the feeding behavior during high-pressure die casting (HPDC). The effects of intensification pressure (IP) and gate thickness on the transport of material through the gate during the latter stages of HPDC were investigated using an AlSi3MgMn alloy. Microstructural characterization of the gate region indicated a marked
Otarawanna, S., Laukli, H. I., Gourlay, C. M., Dahle, A. K.   +3 more
openaire   +2 more sources

Simulation of High Pressure Die Casting Solidification

Materials Science Forum, 2006
By the help of simulation software it is possible to follow and predict the high pressure die casting process. In the Department of Foundry Engineering at the University of Miskolc, Hungary we use both Finite Element- and Finite Difference programs for simulation.
Dániel Molnár, Jenő Dúl, Richárd Szabó   +2 more
openaire   +1 more source

Microstructure formation in high pressure die casting

Transactions of the Indian Institute of Metals, 2009
In order to optimise the high pressure die casting (HPDC) process, more understanding of microstructure and defect formation is essential. This article gives an overview of the key microstructural features and the mechanisms of microstructure formation in this process.
S. Otarawanna, C. M. Gourlay, H. I. Laukli, A. K. Dahle   +3 more
openaire   +1 more source

Microsegregation in High Pressure Die Cast AM70

2016
High pressure die casting (HPDC) is the predominant manufacturing method for magnesium alloy automotive components. Cooling rates during HPDC may reach 300°C/s; however, the phase transformation kinetics in this regime are poorly understood. In this study, a description of microsegregation in HPDC AM70 is obtained by electron probe micro-analysis (EPMA)
T. D. Berman, E. Deda, J. Miao, M. Li, J. E. Allison   +4 more
openaire   +1 more source

High-Pressure Die Casting

2008
Abstract This article provides a comprehensive discussion on die casting alloy types and casting processes used in high-pressure die casting. It presents the advantages and disadvantages of high-pressure die casting and describes the product design for the process. The article concludes with information on metal injection process of high-
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Plating of Magnesium High Pressure Die Castings

Transactions of the IMF, 1980
The use of magnesium alloys, with their exceptional low density, good formability, in particular by pressure die casting, can lead to considerable weight savings in structural parts.
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Three dimensional modelling of high pressure die casting

International Journal of Cast Metals Research, 2000
The modelling of high pressure die casting using SPH is extended to three dimensions. This increases the complexity of the geometry specification and the visualisation, but not of the simulation me...
Paul W. Cleary, Joseph Ha
openaire   +1 more source