Hi,
I've been looking for the fatigue limit of AISI 4340 steel in the form of plate.
I found data (S/N curves) for bar at the MIL-HDBK-5, but not for plate. Could those curves be used also for the plate form?
If not, please any guide to where I can find fatigue data on plate (or any way to...
Hello,
I'm researching the differences between Cromic Acid Anodize and Boric Sulfuric Acid Anodize for a process change we are currently planning, and the hardest thing to compare is differences in factory equipment between them (type of tanks, electrical system, auxiliary equipment, etc...)...
Yep, I understand that. As I said that before, we treat those situations under MRB dispositions, what I wanted is exactly to justify acceptability limits for defects to be repaired and acceptable repair procedures under those circumstances.
Anyway, a little bit of safety remindering is never...
WK, what a great advice. It goes beyond what I expected, many many thanks.
But what about sheet metal formed parts or extrusions that undergo an unexpected deformation (hit, fall to the ground, tool mark, etc...) before final assembly?
I think it is acceptable (if the damaged zone has...
Yep SG nice observation, I agree with that, but also I've seen some KoKs up the ladder.
No matter at what position, I see KoK as a way of getting permanently stuck in a position.
I've known a fair share of KoK folks, some of them with a true dedication and passion to cloack info on everyone.
God they make me furious. But also they motivate me, and I love their faces the times I came up solving problems in their heavily guarded field of expertise.
Also, I follow a...
AviatorJ, yes those parts are treated like repairs (under our MRB authority). We have the problem mainly with extrusions and sheets, though.
Berkshire, yes that is my exact problem. But one of our customer does not have an specific process spec... As I told we know exactly the repair practices...
Hi,
So I'm reviewing our workshop procedures, and I've found a problem that may seem trivial, but I still haven't found no easy solution.
Normally when assembling sheet metal for aerostructures, some of the parts need a subtle straightening for a correct mating, or to correct a small...
Hi,
I'm having some trouble understanding what happened with the QPL documents that existed for the MIL qualified products when their MIL spec was s/s by the equivalent SAE-AMS.
In many of them for the QPL document there is no superseding document. Does that mean that the products in that...
Well, Comco, my boss (see first post) shows malice, ruthlessness and a pathological personality as well. Perhaps not a true and rooted sociopathy, Lecter style, but seems not to be bothered by things such as empathy or compassion, he just acts his way, coldly planned.
Still, I know exactly...
