bonding plastic bowl

[mirzapasic]

i am trying to design a best way to make a plastic bowl (like a soup bowl). injection molding will be difficult because the bowl is designed with a very big undercut on the top edge of the bowl. this is to assist people when eating chips or spooning out soup or whatever. i am researching options on collapsible cores but my main question is as follows. what would be a good material (food safe) which could possibly be used to mold two halves of this bowl (so i don't have to use collapsible core) and then hot plate weld the parts together or possibly glue? if anyone has any ideas on material or method i would appreciate it. thanks.

 

[MikeHalloran]

If you're using a thermoplastic, you could mold a deep bowl with straight sides, and coin the sides inward in some kind of secondary tooling. You would have to choreograph or automate the process to get any kind of consistency.



Mike Halloran
Pembroke Pines, FL, USA