SPH based modelling of oxide and oxide film formation in gravity die castings

14th International Conference on Modelling of Casting, Welding and Advanced Solidification Processes

材料科学;机械制造

Ellingsen, K.^1 ; Coudert, T.^2 ; M'Hamdi, M.^1

SINTEF Materials and Chemistry, Oslo

N-0314, Norway^1

SINTEF Materials and Chemistry, Trondheim

N-7465, Norway^2

关键词: Based modelling;    Cast products;    Casting process;    Complex flow;    Filling velocities;    Film formations;    Inlet velocity;    Smoothed particle hydrodynamics methods;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/84/1/012064/pdf
DOI  :  10.1088/1757-899X/84/1/012064

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

Gravity die casting is an important casting process which has the capability of making complicated, high-integrity components for e.g. the automotive industry. Oxides and oxide films formed during filling affect the cast product quality. The Smoothed particle hydrodynamics (SPH) method is particularly suited to follow complex flows. The SPH method has been used to study filling of a gravity die including the formation and transport of oxides and oxide films for two different filling velocities. A low inlet velocity leads to a higher amount of oxides and oxide films in the casting. The study demonstrates the usefulness of the SPH method for an increased understanding of the effect of different filling procedures on the cast quality.