hi-locks with interference
hi-locks with interference
(OP)
Hi,
For strucural parts, what is the best mounting ? Hi-locks with interference or hi-locks with clearance ? I know of course that using of hi-locks with interference is better concerning fatigue performance but for assembly and process matters which is better ?
For strucural parts, what is the best mounting ? Hi-locks with interference or hi-locks with clearance ? I know of course that using of hi-locks with interference is better concerning fatigue performance but for assembly and process matters which is better ?





RE: hi-locks with interference
RE: hi-locks with interference
It is true that interference fit in titanium is not a good application. Some of the big companies prefer close tolerance fit (which is zero clearance to a low clearance) to transition fit.
RE: hi-locks with interference
RE: hi-locks with interference
Of course with rivets, this is not an issue, because the rivet body swells to fill the hole when it is "bucked".
As a side note, most (shear type) Hi-Lok's used on commercial aircraft are titanium bodies (with DFL) and aluminum collars (with a cetyl alchohol lube). The cost break for most commercial aircraft is over $300/lb, so even titanium fasteners at $50/lb are cost effective.