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mold-filling simulation

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Series: ASM Handbook
Volume: 7
Publisher: ASM International
Published: 30 September 2015
DOI: 10.31399/asm.hb.v07.a0006021
EISBN: 978-1-62708-175-7
... characteristics to be considered in the processing steps: venting, channel diameters, binder segregation, binder degradation, feedstock supply, temperature control, demolding, debinding, and sintering. Finally, the article provides information on powder injection molding mold-filling simulation and two-component...
Series: ASM Handbook
Volume: 22B
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.hb.v22b.a0005503
EISBN: 978-1-62708-197-9
...Abstract Abstract This article focuses on the axisymmetric 2.5-dimensional approach used in metal powder injection molding (PIM) simulations. It describes three stages of PIM simulations: filling, packing, and cooling. The article discusses the process features of numerical simulation of PIM...
Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005239
EISBN: 978-1-62708-187-0
.... , A New Simulation Method of Mold Filling by Using Regular and Irregular-Mixed Elements , Proc. of Modeling of Casting and Solidification Processes IX , Sahm P. R. , Hansen P. N. , and Conley J. G. , Ed., Shaker Verlag , Aachen, Germany , 2000 , p 428 – 435 11. Ohnaka I...
Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005254
EISBN: 978-1-62708-187-0
... are discussed in more detail as follows. However, with mold-filling simulations, significant improvements in the reductions of folds has been achieved. Simulation of the metal flow is important, and computational fluid dynamics models have been developed to analyze metal flow patterns and temperature...
Series: ASM Handbook
Volume: 21
Publisher: ASM International
Published: 01 January 2001
DOI: 10.31399/asm.hb.v21.a0003402
EISBN: 978-1-62708-195-5
... (advanced thermoset manufacturing methods): resin flows through stationary fiber network. Examples are liquid composite molding, thermoset pultrusion, filament winding, and autoclave. Fig. 11 Modeling flowchart Fig. 2 Different scenarios in the mold-filling simulation code. Three...
Series: ASM Handbook
Volume: 2A
Publisher: ASM International
Published: 30 November 2018
DOI: 10.31399/asm.hb.v02a.a0006508
EISBN: 978-1-62708-207-5
... Formation Significant improvement in the reduction of folds has been achieved with mold-filling simulations. Simulation of the metal flow is important, and computational fluid dynamics models have been developed to analyze metal flow patterns and temperature distributions and to improve pattern design...
Series: ASM Handbook
Volume: 20
Publisher: ASM International
Published: 01 January 1997
DOI: 10.31399/asm.hb.v20.a0002482
EISBN: 978-1-62708-194-8
... heat transfer both during and after filling. The information obtained could help avoid problems of cold shuts, where the melt solidifies before filling a void, or where a molten front of liquid comes in contact with a solidified metal. A mold-filling simulation is, therefore, indispensable if a high...
Series: ASM Handbook
Volume: 21
Publisher: ASM International
Published: 01 January 2001
DOI: 10.31399/asm.hb.v21.a0003415
EISBN: 978-1-62708-195-5
... (a vehicle battery tray) incorporating special molded-in features Fig. 5 Example of a GMT compression molded assembly (vehicle spare wheel well) incorporating welded parts Fig. 6 Example of mold-filling simulation output from EXPRESS compression molding process simulation software...
Series: ASM Handbook
Volume: 21
Publisher: ASM International
Published: 01 January 2001
DOI: 10.31399/asm.hb.v21.a0003413
EISBN: 978-1-62708-195-5
... filling simulation showing fill time contours. Courtesy of Ford Motor Company Fig. 7 Typical reinforcement in-plane permeability behavior. Source: Ref 8 Fig. 15 Pressure and temperature cycles during nonisothermal RTM Abstract Abstract Resin transfer molding and structural...
Series: ASM Handbook
Volume: 7
Publisher: ASM International
Published: 30 September 2015
DOI: 10.31399/asm.hb.v07.a0006020
EISBN: 978-1-62708-175-7
... changes in section thickness. Holes and cores can be used to reduce mass and cost and, at the same time, can help create uniform section thicknesses. Mold-filling simulations can be used to ensure all part features are properly filled. Mold life depends on many factors, thus in some cases, a more...
Series: ASM Handbook
Volume: 22A
Publisher: ASM International
Published: 01 December 2009
DOI: 10.31399/asm.hb.v22a.a0005420
EISBN: 978-1-62708-196-2
..., the trajectories of many particles are integrated from the local velocity field, based on previous solution of the fluid velocities of a mold-filling simulation. The effect of turbulence on the chaotic particle paths is very important and is best modeled with the transient turbulent velocity field, using LES ( Ref...
Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0009015
EISBN: 978-1-62708-187-0
... and the geometry of the mold cavity. For example, cast iron often needs very little in the way of risers, because graphite expansion during solidification may compensate for the shrinkage of the iron. Adequate filling depends on the configuration of the mold assembly and alloy castability factors...
Series: ASM Handbook
Volume: 22B
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.hb.v22b.a0005531
EISBN: 978-1-62708-197-9
... individual particles and their interactions in a powder mass, which can be used to simulate the behavior of powder during free flow in die and mold filling and the early stages of sintering. Linear continuum models include linear elastic finite element, heat transfer, and fluid mechanics, which can...
Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005221
EISBN: 978-1-62708-187-0
... can be studied in detail in real molds ( Ref 5 ). In addition, computer simulation has now come of age in this field, and its intelligent use can be invaluable. Entrainment Defects in Gravity-Poured Castings Traditional Filling Designs Prepriming Techniques Naturally Pressurized Filling...
Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005233
EISBN: 978-1-62708-187-0
... of the runner. The simulation shows that the fluid is initially constrained by the vertical sides of the runner, causing the liquid to jet vertically into the mold before falling back to fill the gate from above. When the fan-shaped gate is placed at the bottom of the runner ( Fig. 4 ), the fluid expands...
Series: ASM Handbook
Volume: 22B
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.hb.v22b.a0005501
EISBN: 978-1-62708-197-9
... the local solidification time. Thermal conductivity in the solid has the opposite effect compared to all the other properties studied. Collection and Calculation of Thermophysical Property Data Casting process modeling involves the simulation of mold filling, solidification of the cast metal...
Series: ASM Handbook
Volume: 20
Publisher: ASM International
Published: 01 January 1997
DOI: 10.31399/asm.hb.v20.a0002484
EISBN: 978-1-62708-194-8
...; some models are also effective at predicting the location of microporosity. Advanced models use finite element or finite difference methods to predict how the casting fills and, from those results, are able to establish the temperature of each point in the mold and each point in the liquid metal...
Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005295
EISBN: 978-1-62708-187-0
... R.E. , A Re-Evaluation of the Iron Rich Portion of the Fe-Ni System , Trans. Met. Soc. AIME , Vol 233 , 1965 , p 2083 It has long been recognized that the way in which steel is poured to produce ingots is important. Of critical importance is the way in which steel fills the mold. Two...
Series: ASM Handbook
Volume: 22B
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.hb.v22b.a0005544
EISBN: 978-1-62708-197-9
.... www.integratedsoft.com http://www.integratedsoft.com/products/inducto/default.aspx JSCast JSCast is a three-dimensional integrated computer-aided engineering system for casting optimization and includes mold-filling, solidification, and deformation simulations. QUALICA, Inc. http://www.jscast.com.cn/english.htm...
Series: ASM Handbook
Volume: 1A
Publisher: ASM International
Published: 31 August 2017
DOI: 10.31399/asm.hb.v01a.a0006326
EISBN: 978-1-62708-179-5
.... , AFS Trans. , Vol 105 , 1997 , p 95 17. Larsen P.L. , “Iron Melt Flow in Thin Walled Sections in Vertically Parted Green Sand Molds,” Ph.D., Technical University of Denmark, 2004 18. Mampaey F. and Xu Z.A. , Simulation and Experimental Validation of Grain...