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Title: Design and simulation of shaped can products
Author: Davies, David Lloyd
Awarding Body: University of Wales, Swansea
Current Institution: Swansea University
Date of Award: 2004
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The drawn and wall ironing process (DWI), the primary method in making beverage cans, is a precise procedure where a large number of parameters influence the resultant can shape and performance. With the goal o f expanding the capability of production or optimising its efficiency a finite element (FE) model is set-up parametrically such that once validated, new designs can be investigated via this model. The introduction of factorial analysis is utilised in conjunction with FE in order to optimise some variables whilst simultaneously gaining a rounded understanding as to their effect. The thesis describes how the model is set up including the material properties and attention to the contact set-up. In addition to the DWI modelling, the embossing of cans is simulated. Various embossing models have been created that range from embossing arbitrary designs onto can wall material to embossing squares into flat strip tinplate samples. The validation is made with the flat strip samples that contain features similar to the embossing of squares onto can wall, and so the validation is implied to all of the embossing models. Some of the key conclusions are: • The DWI process can be modelled accurately, predicting features such as final gauge to within 5% and also average cup height • The factorial analysis package can be applied to the DWI process to ascertain the friction coefficients in all contact areas • The flat strip embossing model correctly predicts the occurrence of the 'spike' and 'saddle' features when they exists and their magnitude. The model also correctly predicts when the embossing process will result in material failure.
Supervisor: Not available Sponsor: Not available
Qualification Name: Thesis (Eng.D.) Qualification Level: Doctoral
EThOS ID:  DOI: Not available