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Stress Correlation between Instrumentation and Simulation Analysis of the Die for High Pressure Die Casting

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Abstract

A strain gauge instrumentation trial on a high-pressure die casting (HPDC) die was compared to a corresponding simulation model using Magmasoft® casting simulation software at two strain gauge rosette locations. The strains were measured during the casting cycle, from which the von Mises stress was determined and then compared to the simulation model. The von Mises stress from the simulation model correlated well with the findings from the instrumentation trial, showing a difference of 5.5%, ∼ 10 MPa for one strain gauge rosette located in an area of low stress gradient. The second rosette was in a region of steep stress gradient, which resulted in a difference of up to 40%, ∼40 MPa between the simulation and instrumentation results. Factors such as additional loading from die closure force or metal injection pressure which are not modelled were shown to have very little influence on the stress in the die, less than 7%.

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Authors and Affiliations

  1. School of Mechanical & Aerospace Engineering, Queens University, Belfast, Northern Ireland

    A. Long, D. Thornhill & C. Armstrong

  2. Ryobi Aluminium Castings (UK) Ltd., Antrim, Northern Ireland

    D. Watson

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  1. A. Long
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  2. D. Thornhill
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  3. C. Armstrong
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  4. D. Watson
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Long, A., Thornhill, D., Armstrong, C. et al. Stress Correlation between Instrumentation and Simulation Analysis of the Die for High Pressure Die Casting. Inter Metalcast 7, 27–41 (2013). https://doi.org/10.1007/BF03355551

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