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Thread: How was this molded?

  1. #1
    Join Date
    Sep 2021

    How was this molded?

    This is a nose cone of a toy glider. I'm trying to figure out how it was made. I suspect it is HDPE but mainly wondering about the process. It is hollow, ~5" long, with a wall thickness of ~.014". Notice the D shape at the tip and the small round hole - perhaps they are clues. Is it likely injection molded or vacuum formed or something else? I can barely see a seam all the way around and at one spot the seam is not so uniform hinting at sealing by manually pressing a heating element to seal but the rest of the seam seems too clean for that. I estimate that the manufacturer makes ~1,000 per year.

    Click image for larger version. 

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  2. #2
    Join Date
    Mar 2017
    South Africa

    Re: How was this molded?

    perhaps blow moulded?

  3. #3
    Join Date
    Apr 2020
    Traverse City, MI

    Re: How was this molded?

    Most likely this is made from an injection molding process. Vacuum forming process is highly unlikely.

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