Today's Message Index:
----------------------
1. 01:00 PM - acceptable defects on universal head rivets?? (Charlie England)
2. 01:22 PM - Re: acceptable defects on universal head rivets?? (Hinde, Frank George (Corvallis))
3. 01:23 PM - Re: acceptable defects on universal head rivets?? (Scott R. Shook)
4. 04:33 PM - Re: acceptable defects on universal head rivets?? (tadsargent)
Message 1
| INDEX | Back to Main INDEX |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | acceptable defects on universal head rivets?? |
--> RV7-List message posted by: Charlie England <ceengland@bellsouth.net>
Just saw this on another list:
Per MIL-STD-403C (the revision level of the paper copy [he has]) para
5.2.7.5:
"Marring of the manufactured head. A cut or ring caused by the riveting
equipment shall be acceptable on non-flush rivets providing the depth of
the cut is not greater than one-fourth of the head height. Cut or ringed
flush rivets shall not be acceptable."
Anybody who's familiar with either mil-spec standards or FAA 'best practices' that
knows whether this is valid? I'm not advocating sloppy work, but I can remember
drilling out a few 1/8" rivets due to minor errors with the universal set
& making a bigger problem when I did it. If the quote above is accurate, I'd
bet there are quite a few projects out there that would be better off carrying
around a few 'smiles'.
Charlie
Message 2
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | acceptable defects on universal head rivets?? |
--> RV7-List message posted by: "Hinde, Frank George (Corvallis)" <frank.hinde@hp.com>
No smiles on my project....My nose just got longer!
Frank
-----Original Message-----
From: owner-rv7-list-server@matronics.com
[mailto:owner-rv7-list-server@matronics.com] On Behalf Of Charlie
England
Sent: Tuesday, October 10, 2006 1:00 PM
Subject: RV7-List: acceptable defects on universal head rivets??
--> RV7-List message posted by: Charlie England
--> <ceengland@bellsouth.net>
Just saw this on another list:
Per MIL-STD-403C (the revision level of the paper copy [he has]) para
5.2.7.5:
"Marring of the manufactured head. A cut or ring caused by the
riveting equipment shall be acceptable on non-flush rivets providing the
depth of the cut is not greater than one-fourth of the head height. Cut
or ringed flush rivets shall not be acceptable."
Anybody who's familiar with either mil-spec standards or FAA 'best
practices' that knows whether this is valid? I'm not advocating sloppy
work, but I can remember drilling out a few 1/8" rivets due to minor
errors with the universal set & making a bigger problem when I did it.
If the quote above is accurate, I'd bet there are quite a few projects
out there that would be better off carrying around a few 'smiles'.
Charlie
Message 3
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | acceptable defects on universal head rivets?? |
--> RV7-List message posted by: "Scott R. Shook" <sshook@cox.net>
I can't quote mil specs or FAA regs while I'm at work because I don't have
them in front of me, but I do know that the Aircraft Structural Technician
book that I bought from Cleaveland Tool says roughly the same thing. There
are some pretty interesting pictures about how the shop heads should look
and smiles on the manufactured head and what is acceptable or not.
Quite frankly I was surprised at what was shown to be acceptable. I too
have fallen into the trap of trying to drill out rivets that would have been
acceptable by this standard and in the process, created other problems.
Scott & Jenni
RV-7A N696JS
Working on left Tank
-----Original Message-----
From: owner-rv7-list-server@matronics.com
[mailto:owner-rv7-list-server@matronics.com] On Behalf Of Charlie England
Sent: Tuesday, October 10, 2006 13:00
Subject: RV7-List: acceptable defects on universal head rivets??
--> RV7-List message posted by: Charlie England <ceengland@bellsouth.net>
Just saw this on another list:
Per MIL-STD-403C (the revision level of the paper copy [he has]) para
5.2.7.5:
"Marring of the manufactured head. A cut or ring caused by the riveting
equipment shall be acceptable on non-flush rivets providing the depth of
the cut is not greater than one-fourth of the head height. Cut or ringed
flush rivets shall not be acceptable."
Anybody who's familiar with either mil-spec standards or FAA 'best
practices' that knows whether this is valid? I'm not advocating sloppy work,
but I can remember drilling out a few 1/8" rivets due to minor errors with
the universal set & making a bigger problem when I did it. If the quote
above is accurate, I'd bet there are quite a few projects out there that
would be better off carrying around a few 'smiles'.
Charlie
Message 4
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | Re: acceptable defects on universal head rivets?? |
--> RV7-List message posted by: "tadsargent" <tadsargent@bellsouth.net>
Charlie I remember reading a test on rivet strength. On pull test an ugly
nail looking or a universal head was 9\0% as strong as a beautiful one. And
lest we forget there is another rivet 1.5" down the road.
Stripes
7A 160 hours
----- Original Message -----
From: "Charlie England" <ceengland@bellsouth.net>
Sent: Tuesday, October 10, 2006 3:59 PM
Subject: RV7-List: acceptable defects on universal head rivets??
> --> RV7-List message posted by: Charlie England <ceengland@bellsouth.net>
>
> Just saw this on another list:
>
> Per MIL-STD-403C (the revision level of the paper copy [he has]) para
> 5.2.7.5:
> "Marring of the manufactured head. A cut or ring caused by the riveting
> equipment shall be acceptable on non-flush rivets providing the depth of
> the cut is not greater than one-fourth of the head height. Cut or ringed
> flush rivets shall not be acceptable."
>
> Anybody who's familiar with either mil-spec standards or FAA 'best
> practices' that knows whether this is valid? I'm not advocating sloppy
> work, but I can remember drilling out a few 1/8" rivets due to minor
> errors with the universal set & making a bigger problem when I did it. If
> the quote above is accurate, I'd bet there are quite a few projects out
> there that would be better off carrying around a few 'smiles'.
>
> Charlie
>
>
>
Other Matronics Email List Services
These Email List Services are sponsored solely by Matronics and through the generous Contributions of its members.
-- Please support this service by making your Contribution today! --
|