Tapped threads and threaded inserts in glass reinforced PEI (Ultem 2300)
Tapped threads and threaded inserts in glass reinforced PEI (Ultem 2300)
(OP)
I am planning to build a part out of Ultem 2300, also called Duratron, which is a glass fiber filled polyetherimide. It will be made from 4" thick stock sheet.
I plan to use threaded inserts in this material, which require tapping. What I can't find is any literature or specifications which give any allowables on tapping/threading for this material. Have never worked with it before, so there are concerns about the threads holding up, cracking, etc.
Anyone know where I can find reliable data on this?
The other option is to bore holes and set the inserts in with epoxy or some kind of adhesive.
I plan to use threaded inserts in this material, which require tapping. What I can't find is any literature or specifications which give any allowables on tapping/threading for this material. Have never worked with it before, so there are concerns about the threads holding up, cracking, etc.
Anyone know where I can find reliable data on this?
The other option is to bore holes and set the inserts in with epoxy or some kind of adhesive.





RE: Tapped threads and threaded inserts in glass reinforced PEI (Ultem 2300)
RE: Tapped threads and threaded inserts in glass reinforced PEI (Ultem 2300)
RE: Tapped threads and threaded inserts in glass reinforced PEI (Ultem 2300)
RE: Tapped threads and threaded inserts in glass reinforced PEI (Ultem 2300)
Rick Fischer
Principal Engineer
Argonne National Laboratory
RE: Tapped threads and threaded inserts in glass reinforced PEI (Ultem 2300)
Page 44, 7.3 Mechanical Assembly. Says that heat or ultrasonic install is preferred, but that "overmolding and external threaded inserts [what I'm intending to do] are also possible."
However no guidelines are given.
RE: Tapped threads and threaded inserts in glass reinforced PEI (Ultem 2300)
Rick Fischer
Principal Engineer
Argonne National Laboratory