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Optimisation of the squeeze forming process

Ahmad, Rosli (2006) Optimisation of the squeeze forming process. PhD thesis, University of Wales Swansea.

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This thesis presents the optimisation of the squeeze forming process, considering both the thermal and mechanical aspects. The Finite Element Method has been used to simulate the process and a Genetic Algorithm was used as an optimisation tool. The thermal optimisation has been applied to the squeeze f0Il11ing process to achieve near simultaneous solidification in the cast part. The positions of the coolant channels were considered as design variables in order to achieve such an objective. The fOllllulation of the objective functions involved two points and also considered the whole domain. The validation aspects of the optimisation of the casting processes for 2D and axi-symmetric problems were presented. The influence of the interfacial heat transfer coefficient related to optimisation of the process was explored. For the multi-objective optimisation problem, the objective was to achie\'e ncar simultaneous solidification in the cast part and also near unifoIl11 \'on ivlises stress distribution in the die for the first and also tenth cycles. This is because it has been found that the process starts to reach cyclic stabilisation after the tenth cycle. The comparison II

Item Type: Thesis (PhD)
Subjects: T Technology > TS Manufactures > TS200-770 Metal manufactures. Metalworking
Depositing User: M.Iqbal Zainal A
Date Deposited: 20 Apr 2011 06:58
Last Modified: 29 Apr 2011 06:43
URI: http://eprints.uthm.edu.my/id/eprint/1220
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