Originally Posted by
WingNut60
Is the sleeve of the same material as the parent metal?
Is the sleeve effectively swaged into place and then reamed, rather than the parent metal?
I have seen something similar using a roller reamer. That is, a process that just swages the parent metal to size.
But have never encountered use of a sleeve.
Note! Not to be confused with roller reamers as used in oil drilling.
Just interested in the process.
from an engineering perspective, using an in-situ sleeve is usually done then the stresses for the fixing exceed the properties of the host material, the sleeve's job is to spread the load over a larger area (assuming a cylindrical sleeve, the increase in diameter increases the load area in the base material).
the other way is to burnish the surface, typical burnishing tools are like a bar with many smaller rollers around it that then compress the host material to size, this is often done as the finishing process for bearing journals in aluminium used on camshafts etc.
here's some example tools:
https://monaghantooling.com/precisio...ng/burnishing/