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    Comparison of injection moulding machine performance.

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    Publication date
    2005
    Author
    Kelly, Adrian L.
    Woodhead, Michael
    Coates, Philip D.
    Keyword
    Injection moulding machines
    Comparison
    Peer-Reviewed
    Yes
    
    Metadata
    Show full item record
    Abstract
    A comprehensive study into the performance of 4 injection molding machines is reported, using identical mold, polymer, and processing conditions. Start-up dynamics and process repeatability were directly compared across machine technologies. One servohydraulic, one proportional hydraulic and two servoelectric machines were used in the study, ranging in age from 14 years to 1 year old at the time of the study. Experiments were carried out at identical set molding conditions for a run of 400 parts and part quality and process parameters monitored. Results showed a significant start up period in each case, correlating strongly to mold temperature. Age of machine proved to be the most significant factor in determining process repeatability; modern machines having significantly lower variation than older ones. Differences between the operating characteristics of hydraulic and electric machines were detected, control of screw position in hydraulic machines being less repeatable, although this had a minor effect on part repeatability. Electric machines were found to use up to 4 times less energy than their hydraulic counterparts and operate more efficiently.
    URI
    http://hdl.handle.net/10454/3414
    Version
    No full-text available in the repository
    Citation
    Kelly, A.L., Woodhead, M. and Coates, P.D. (2005). Comparison of injection moulding machine performance. Polymer Engineering and Science. Vol. 45, No. 6, pp. 857-865.
    Link to publisher’s version
    http://dx.doi.org/10.1002/pen.20335
    Type
    Article
    Collections
    Engineering and Informatics Publications

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