Numerical Simulation Of Filling Process In Die Casting

Li, Yongbao; Zhou, Wei

doi:10.1080/10667857.2003.11753008

Cited by 7 publications

(2 citation statements)

References 11 publications

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“…Fluid flow analysis during the mould filling process has been vigorously studied in the recent decades due to the advance of computer hardware and software systems [11][12][13][14][15][16][17][18][19].…”

Section: Introductionmentioning

confidence: 99%

Archives of Metallurgy and Materials

Popielarski¹,

Hajkowski²,

Sika³

et al. 2019

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The paper includes validation studies of the flow module of the NovaFlow&Solid simulation code. Experiments of ductile iron and gray iron casting in a spiral test of castability were carried out. Casting experiments were then carried out in industrial conditions in the Ferrex Foundry in Poznań and the results are the castability spiral length and local cast iron rate during mould cavity pouring. Simulation tests using NovaFlow&Solid Control Volume code were made. The technological castability test was used to determine thermal-physical data through simplified inversion problem. Influence of physical parameters in the database of simulation code on the spiral length obtained as the result of simulation was analyzed. It was found that critical fraction of capillary flow CLFdown has the biggest impact on cast iron castability in the simulation code. The simulations resulted in defining parameters of gray iron GJL 250 and ductile iron GJS-400-15. For the parameters set, the length of castability spiral in simulations was in accordance with casting experiments.

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Section: Introductionmentioning

confidence: 99%

Archives of Metallurgy and Materials

Popielarski¹,

Hajkowski²,

Sika³

et al. 2019

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“…Considerable effort has been made in the past decade or so to study casting [1,2,3], welding [4], machining [5,6], heat treatment [7,8], phase transformation [9], surface coating [10,11], and laser processing [11,12,13,14,15,16] of various magnesium alloys, including AM50A [5,17], AM60 [1], AZ31B [18], AZ91D [4,7,8,9,10,11,12,13,14,15,16], and Mg-based composites [19,20]. Effort has also been made to study the materials' corrosion mechanisms [7,18,20,21,22,23], biocorrosion behavior [8,13], wear resistance [24], fatigue properties [25] and fracture under dynamic loading [17].…”

Section: Introductionmentioning

confidence: 99%

Effect of Intermetallic β-Mg<sub>17</sub>Al<sub>12</sub> on Fracture of Ultralight Magnesium Alloy

Guan

Zhou

2013

KEM

Self Cite

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An AZ91D magnesium alloy was tested in either compression or tension, and extensive observation of the tested samples was carefully carried out to understand the fracture initiation and propagation processes. Cracking of β-Mg17Al12 intermetallic compounds was found to occur easily in plastic zones under either compressive or tensile loading. However, the cracking did not necessarily result in fracture propagation. It is argued that the fracture is controlled by the microcrack propagation.

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Numerical investigation of the pouring mechanism in the filling of epoxy resin in pressure casting processes

Pushpak

Chandy

2021

Eng. Res. Express

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Epoxy resins are one of the most widely used thermosetting materials, especially for transformer insulation in the electrical industry. One of the primary technologies used for manufacturing such products is based on pressure casting. Computational fluid dynamics (CFD) calculations of the mould filling stage in a pressure casting process for epoxy resin casting are carried out and presented in this paper. Two designs of a gating system are studied and their effects on the flow parameters in the mould are analyzed. The two designs being top pour and bottom pour inlet. A new solver is developed in an open source CFD framework, OpenFOAM, which incorporates the Navier–Stokes equations, energy equation including the viscous dissipation and a new isoAdvector approach for capturing the liquid-gas interface. The objective is to simulate the flow and heat transfer of epoxy resin, while being filled in the mould that is initially empty and heated to a specified temperature. Formulation was validated with experimental measurements of the classical dam breaking problem. For the resin filling problem, further verification was carried out using grid-dependent studies and temporal fill factor comparisons to experiments. In addition, instantaneous contours of volume fraction and temperature, and velocity vectors are studied to understand the flow patterns and heat transfer in the mould during the filling process. Among both the gating designs, the bottom pour was the more preferred one as it resulted in less turbulence, sloshing and it provides an easy passage for the voids to escape leading to higher fill factor. This analysis also helps in recognising the location of voids and thereby help in potentially identifying optimal process parameter settings for a more suitable mould design.

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Numerical Simulation Of Filling Process In Die Casting

Cited by 7 publications

References 11 publications

Archives of Metallurgy and Materials

Archives of Metallurgy and Materials

Effect of Intermetallic β-Mg<sub>17</sub>Al<sub>12</sub> on Fracture of Ultralight Magnesium Alloy

Numerical investigation of the pouring mechanism in the filling of epoxy resin in pressure casting processes

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