In: Mechanical Engineering
I am trying to understand a few injection molding calculations. I will appreciate your assistance.
How do I calculate part weight for plastic injection molding?
Is it mass * density or volume * density?
My part is 29.126 grams and I am using Polypropylene (PP) which has a density of 0.899 g/cm3 .
Therefore : 29.126 * 0.899= 26.184 grams
To convert to ounce: 26.184* 1/28.3495=0.9236 ounce
Is the above correct?
How do I calculate shot weight? Please explain clearly and give and example.
How do I calculate core and cavity cost?
I will appreciate a clear and will written explanation because I want to understand how its done.
Thank you
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