Influence of die casting process parameters on castability and properties of thin walled aluminium housings

2008 ◽  
Vol 21 (1-4) ◽  
pp. 330-333 ◽  
Author(s):  
S. W. Choi ◽  
Y. C. Kim ◽  
J. I. Cho ◽  
C. S. Kang
Keyword(s):  
Process Parameters ◽  
Die Casting ◽  
Casting Process ◽  
Thin Walled ◽  
Die Casting Process

High-Pressure Die-Casting Process Modelling Using Neural Networks

2006 ◽  
pp. 182-198 ◽  
Author(s):  
M. Imad Khan ◽  
Saeid Nahavandi ◽  
Yakov Frayman
Keyword(s):  
High Pressure ◽  
Process Parameters ◽  
Current Knowledge ◽  
Die Casting ◽  
Process Condition ◽  
Industrial Process ◽  
Casting Process ◽  
High Pressure Die Casting ◽  
Die Casting Process ◽  
Pressure Die Casting

This chapter presents the application of a neural network to the industrial process modeling of high-pressure die casting (HPDC). The large number of inter- and intradependent process parameters makes it difficult to obtain an accurate physical model of the HPDC process that is paramount to understanding the effects of process parameters on casting defects such as porosity. The first stage of the work was to obtain an accurate model of the die-casting process using a feed-forward multilayer perceptron (MLP) from the process condition monitoring data. The second stage of the work was to find out the effect of different process parameters on the level of porosity in castings by performing sensitivity analysis. The results obtained are in agreement with the current knowledge of the effects of different process parameters on porosity defects, demonstrating the ability of the MLP to model the die-casting process accurately.

Optimization of the aluminium die casting process based on the Taguchi method

2002 ◽  
Vol 216 (7) ◽  
pp. 969-977 ◽  
Author(s):  
K S Anastasiou
Keyword(s):  
Process Parameters ◽  
Die Casting ◽  
High Strength ◽  
Casting Process ◽  
Process Variable ◽  
Primary Objective ◽  
Ease Of Use ◽  
Porosity Formation ◽  
Controllable Factors ◽  
Die Casting Process

Porosity in the die casting process causes costly scrap loss and limits the use of die-cast parts in critical high-strength applications. The amount of porosity is closely related to the die casting process parameters. Consequently, the mechanisms of porosity formation in relation to die casting parameters have to be studied in detail. A considerable reduction in porosity formation can be obtained by Taguchi technique implementation in the die casting process. Through simple multifactorial experiments in the foundry, controllable factors can be isolated to provide centring and variance control for a process variable. The primary objective of this paper is to investigate the effects of process parameters on porosity formation in the pressure die casting process to improve casting quality. Examples of the off-line technique used in a Greek aluminium die casting company are given for the purpose of illustrating the practicality and ease of use by industry engineers and managers.

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