Modelling Shape Evolution and Heat Flow of Spray-Formed Ring Preforms

Jia Wei Mi; Z. Shi; Patrick S. Grant

doi:10.4028/www.scientific.net/MSF.475-479.2807

Paper Titles

Spray Forming of AZ91 Magnesium Alloys with and without Si Addition
p.2789

Spray Forming of Homogeneous Bearing Steel of Minimized Distortion Potential
p.2795

A Novel Spray Deposition Technology for the Preparation of Aluminum Alloy and Aluminum Alloy Matrix Composite Rings with Large Dimensions
p.2799

Numerical Heat Transfer Modelling in Spray Formed IN718 Billets
p.2803

Modelling Shape Evolution and Heat Flow of Spray-Formed Ring Preforms
p.2807

PID Control of Deposit Dimension during Spray Forming
p.2811

The Flow Characteristic Study of Gas Spray Process in Baosteel Spray Forming Equipment
p.2815

The Study of Statistical Model of Mass Liquid Drop during Metal Spray Forming Process
p.2819

Influence of In-Flight Particle Characteristics on the Forming Quality
p.2823

HomeMaterials Science ForumMaterials Science Forum Vols. 475-479Modelling Shape Evolution and Heat Flow of...

Modelling Shape Evolution and Heat Flow of Spray-Formed Ring Preforms

Abstract:

A finite element model has been developed to simulate the coupled effects of deposit shape evolution and heat flow inside spray formed ring-shaped deposits. The shape model was developed using Matlab and included the features of: (1) atomiser scanning; (2) substrate movement relative to the atomiser; and (3) sticking efficiency. Atomiser scan and various substrate horizontal travel speeds were studied to optimise the ring shape in terms of useful materials suitable for downstream processing. The heat flow model was developed using the commercial finite element code Femlab. A data mapping technique was developed to transfer thermal data between different domains when the computational domains are subject to changing geometry and therefore the coupled effects of shape evolution and heat flow were addressed. Spray forming of ring deposits was performed on the large spray forming unit at Oxford University. In-situ temperature measurements were carried put for acquisition of boundary conditions and validation of the heat flow model. Heat flow modelling revealed that edge effects had a strong influence on the ring thermal history and the porosity distribution inside the deposits is closely related to the local solidification time.

You might also be interested in these eBooks

View Preview

Info:

Periodical:

Materials Science Forum (Volumes 475-479)

Pages:

2807-2810

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.475-479.2807

Citation:

Cite this paper

Online since:

January 2005

Authors:

Jia Wei Mi, Z. Shi, Patrick S. Grant

Keywords:

Finite Element, Heat Flow Modelling, Spray Forming

Export:

RIS, BibTeX

Price:

Permissions:

Request Permissions

References

[1] P.S. Grant, Prog. Mater. Sci. 39 (1995), 497.

Google Scholar

[2] E.J. Lavernia and Y. Wu, Spray Atomization and Deposition, John Weiley & Sons Inc, (1996).

Google Scholar

[3] P.S. Grant, P.P. Maher and B. Cantor, Mater. Sci. Engng A179/A180 (1994), 72.

Google Scholar

[4] N.H. Pryds, J.H. Hattel, T.B. Pedersen and J. Thorborg, Acta Materialia 50 (2002), 4075.

DOI: 10.1016/s1359-6454(02)00205-7

Google Scholar

[5] O. Meyer, U. Fritsching and K. Bauckhage, Int. J. Therm. Sci. 42 (2003), 153.

Google Scholar

[6] Matlab Reference Manual, Version 6, The MathWork Inc, (2002).

Google Scholar

[7] P.N. Quested, K.C. Mills, R.F. Brooks, A.P. Day, R. Taylor and H. Szelagowski, in A. Mitchell and P. Auburtin (eds): Proc. of the 1997 Int. Symp. on Liquid Metal Processing and Casting, New Mexico, Feb. 16-19, 1997, American Vacuum Society, pp.1-17.

Google Scholar

[8] J.P. Holman, Heat Transfer, 9th ed, McGrawHill, (2002).

Google Scholar

[9] O. Meyer, A. Schneider, V. Uhlenwinkel and U. Fritsching, Int. J. Therm. Sci. 42 (2003), 561.

Google Scholar

[10] W.T. Carter Jr. and R.M.F. Jones, Adv. Mater. Process. 160(7) (2002 ), 27-29.

Google Scholar

[11] K.H. Baik, P.S. Grant and B. Cantor, Acta Mater. 52 (2004), 199.

Google Scholar

[12] FEMLAB Reference Manual Version 2. 2. COMSOL AB. (2002).

Google Scholar