Thanks very much for your valuable input Terry. Neat little animation of the gage. QUESTION: Would you hesitate to apply a .005" positional tolerance to a #2-56 threaded insert referenced to the part datums? The greatest distance to the datums is roughly 1.5 inches. The material is a 99%...
There is no significant shear load to transmit through the screws, and micrometer-level slip between the fastener and the joined part is acceptable under CTE mis-match conditions. I just don't want to have a through-hole so close to the edge that it might break through the edge or leave it paper...
Thanks guys. KENAT, what you are saying agrees with what I have found from other sources. Sandia Labs conducted a test where they found they could achieve Ø positional tolerances of about 0.003 for threaded holes in aluminum. However, in steel they were able to achieve 0.0004! Like you said, on...
The tolerance in this case needs to be very tight because of the small size of the part and the minimization of it relative to the components it contains. Therefore, I need to know how tight I can tolerance the position of the threaded helical inserts. For rb1957, I mean: what can be achieved as...
Thanks KENAT. That is helpful. I was given the same suggestion a few years ago by a design manager, but was told recently by a co-worker that my suggestion for a .010" position tolerance was TOO LOOSE. That co-worker told me to call out 0.005" positional tolerance on the threaded insert position.
