A New Kind Of Rivets
A New Kind Of Rivets
(OP)
Hello everybody!
I am new in helicopter maintenance.
I have seen a new kind of rivets with two dash on head (like ice-box rivets) and raised dot on center of rivet head.
Did any one know about this kind of rivets and the relevant material?
I will be thankful if i could have a catalogue of this kind of rivets.
I am new in helicopter maintenance.
I have seen a new kind of rivets with two dash on head (like ice-box rivets) and raised dot on center of rivet head.
Did any one know about this kind of rivets and the relevant material?
I will be thankful if i could have a catalogue of this kind of rivets.
RE: A New Kind Of Rivets
TTFN (ta ta for now)
I can do absolutely anything. I'm an expert! https://www.youtube.com/watch?v=BKorP55Aqvg
FAQ731-376: Eng-Tips.com Forum Policies forum1529: Translation Assistance for Engineers Entire Forum list http://www.eng-tips.com/forumlist.cfm
RE: A New Kind Of Rivets
EXACTLY what part number rivet are You referring to?
As IRstuff indicated, close-up photo of the rivet head with clear focus is important.
For US manufacturers, there is NO such rivet code as -.-
For US manufacturers, there is a mandatory requirement to 'impress' [depressed lettering] their distinctive company code/symbol on the rivet head, at no specified location
Regards, Wil Taylor
o Trust - But Verify!
o We believe to be true what we prefer to be true. [Unknown]
o For those who believe, no proof is required; for those who cannot believe, no proof is possible. [variation,Stuart Chase]
o Unfortunately, in science what You 'believe' is irrelevant. ["Orion", Homebuiltairplanes.com forum]
RE: A New Kind Of Rivets
posting
TTFN (ta ta for now)
I can do absolutely anything. I'm an expert! https://www.youtube.com/watch?v=BKorP55Aqvg
FAQ731-376: Eng-Tips.com Forum Policies forum1529: Translation Assistance for Engineers Entire Forum list http://www.eng-tips.com/forumlist.cfm
RE: A New Kind Of Rivets
I have seen that rivet on critical attachment point in bk-117 helicopter.
Like attaching tail gearbox to spar or first rivets that attach longerons to skin.
This rivet belongs to group of rivets like DIN LN9198. but there is not any information about head signs.
Taking photo is forbidden in our shop. but if i could, i will upload photo about subject.
RE: A New Kind Of Rivets
I suppose, removing 1-rivet from the shop stock-bin... for a photo of the head outside of the shop environment... then returning it to the stock-bin is not possible? We may not be able to help You...
The specification DIN LN9198 is not one I am familiar with... anyone else have a clue?
Regards, Wil Taylor
o Trust - But Verify!
o We believe to be true what we prefer to be true. [Unknown]
o For those who believe, no proof is required; for those who cannot believe, no proof is possible. [variation,Stuart Chase]
o Unfortunately, in science what You 'believe' is irrelevant. ["Orion", Homebuiltairplanes.com forum]
RE: A New Kind Of Rivets
Rephrased: "Humph... Why can't tell me more about what I'm seeing on this rivet head... and I told You the specification is DIN LN9198?"
NOTE.
I have a long association with US aerospace fastening and joining... and have seen/used just about every aerospace fastener-type in existence. Your question is so short of information it has us all stumped.
When I got super-curious... and as a last-resort... Googled DIN LN9198... which is an unfamiliar European spec at best... this is an example of what I got...
https://standards.globalspec.com/std/737926/DIN%20...
https://www.google.com/search?source=univ&tbm=...
Reminds me of several old jokes and a 'truism'...
Anyone who believes in telekinesis raise my hand. Come-on, try harder.
I'm thinking of a number between 1 and 1000... what is it?
A picture is worth a thousand words.
Regards, Wil Taylor
o Trust - But Verify!
o We believe to be true what we prefer to be true. [Unknown]
o For those who believe, no proof is required; for those who cannot believe, no proof is possible. [variation,Stuart Chase]
o Unfortunately, in science what You 'believe' is irrelevant. ["Orion", Homebuiltairplanes.com forum]
RE: A New Kind Of Rivets
Rather than think climate change and the corona virus as science, think of it as the wrath of God. Feel any better?
-Dik
RE: A New Kind Of Rivets
another day in paradise, or is paradise one day closer ?
RE: A New Kind Of Rivets
I took a lot of hardship!! and prepare a photo by solidworks.
If thinking it was familiar i will be thankful to give me information about the rivet and it's material.
RE: A New Kind Of Rivets
"Part Number LN9198-3208BF is a UNIVERSAL RIVET manufactured or catalogued by Airbus Helicopters, Inc."
Forgive us (mostly in North America) for not knowing propriety Airbus rivets.
Have to checked the maintenance manuals where these rivets appear ?
Have you called Airbus help desk ?
another day in paradise, or is paradise one day closer ?
RE: A New Kind Of Rivets
The raised dot indicates alloy = 2017-T4.
The [2] bars that fade-out of both sides of the raised-dot [which I assume are more smooth/rounded than shown], are either: (A) proprietary identification markings; or (b) are defects [artifacts] from the head die-forging process.
Regards, Wil Taylor
o Trust - But Verify!
o We believe to be true what we prefer to be true. [Unknown]
o For those who believe, no proof is required; for those who cannot believe, no proof is possible. [variation,Stuart Chase]
o Unfortunately, in science what You 'believe' is irrelevant. ["Orion", Homebuiltairplanes.com forum]
RE: A New Kind Of Rivets
I will probably measure the hardness of that rivet to find out the material and temper.
Most likely to be 2024-T4 (ICE-BOX).
I hope the wrath of god for the aerospace industry that use other standard than usual!! and worse than that for design poor structure .
best regards
RE: A New Kind Of Rivets
Do you install these rivets 'cold' [as=is] or heat treated/quenched... installed out-of-an ice-box?
Regards, Wil Taylor
o Trust - But Verify!
o We believe to be true what we prefer to be true. [Unknown]
o For those who believe, no proof is required; for those who cannot believe, no proof is possible. [variation,Stuart Chase]
o Unfortunately, in science what You 'believe' is irrelevant. ["Orion", Homebuiltairplanes.com forum]