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Influence of Unsteady Effects on Air Venting in Pressure Die Casting
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The influence of unsteady effects on the evacuation of air through vents in pressure die casting processes is analyzed. A model is proposed which considers the air flow as one-dimensional and ...
Analysis of the Flow in a High-Pressure Die Casting Injection Chamber
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The flow in the injection chamber of pressure die casting machines is analyzed using a model based on the shallow-water approximation which takes into account the effects of wave reflection ...
On the Critical Plunger Speed and Three-Dimensional Effects in High-Pressure Die Casting Injection Chambers
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: During the initial slow stage of the injection process in high-pressure die casting machines with horizontal cold chamber, a plunger pushes the molten metal which partially fills the injection ...
Experimental Investigation of Porosity Formation During the Slow Injection Phase in High-Pressure Die-Casting Processes
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The air entrapment mechanisms in die-casting injection chambers that may produce porosity in manufactured parts are analyzed in this work using visualization techniques of the flow in a transparent ...
An Experimental and Numerical Study of Flow Patterns and Air Entrapment Phenomena During the Filling of a Vertical Die Cavity
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: One of the most important problems encountered in die-casting processes is porosity due to air entrapment in the molten metal during the injection process. The aim of this work is to study ...
Shot Sleeve Wave Dynamics in the Slow Phase of Die Casting Injection
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: An analysis is carried out on the wave formed during the slow phase of die casting injection processes. Viscous effects are assumed to be negligible and the problem is treated two-dimensionally ...