VansAirForceForums  
Home > VansAirForceForums

-POSTING RULES
-Advertise in here!
- Today's Posts | Insert Pics

Keep VAF Going
Donate methods

Point your
camera app here
to donate fast.

  #1  
Old 04-24-2019, 03:28 PM
ShortSnorter ShortSnorter is offline
 
Join Date: Dec 2013
Location: NOLA
Posts: 350
Default Starburst (Not the candy)

Has anyone seen this around the shop head of a rivet? Does it have something to do with anodized surface?

Disclaimer: As with most photos, the details look more exaggerated. In other words this is difficult to see unless the light hits it just right.


__________________
Ryan
RV-14 In-Progress
Build Site
Reply With Quote
  #2  
Old 04-24-2019, 04:09 PM
wirejock's Avatar
wirejock wirejock is offline
 
Join Date: Oct 2005
Location: Estes Park, CO
Posts: 4,765
Default Starburst

Yes, and I assume yes since I've only seen it on anodized surfaces.
Also, next time you set a rivet with the squeezer, watch and see if you spot a little puff of smoke. I would love to know what that one is.
__________________
Larry Larson
Estes Park, CO
wirejock at yahoo dot com
Donated 01/01/2021, plus a little extra.
RV-7A #73391, N511RV reserved (2,000+ hours)
Empennage, wings, fuse, finishing kit, now FWF
Disclaimer
I cannot be, nor will I be, held responsible if you try to do the same things I do and it does not work and/or causes you loss, injury, or even death in the process.
Reply With Quote
  #3  
Old 04-24-2019, 04:18 PM
Girraf Girraf is online now
 
Join Date: Dec 2017
Location: Southern Maryland
Posts: 203
Default

Quote:
Originally Posted by wirejock View Post
Yes, and I assume yes since I've only seen it on anodized surfaces.
Also, next time you set a rivet with the squeezer, watch and see if you spot a little puff of smoke. I would love to know what that one is.
I immediately noticed the puff of smoke when I started using my squeezer. I'd love to hear an explanation for that!
__________________
Vintage Cherokee 160
RV-7:
Empennage complete
SB Wings to QB stage
Fuselage in progress
Finish kit/Engine/Prop Ordered
Reply With Quote
  #4  
Old 04-24-2019, 05:30 PM
1001001's Avatar
1001001 1001001 is offline
 
Join Date: Dec 2014
Location: Just Minutes from KBVI!
Posts: 1,144
Default

Quote:
Originally Posted by wirejock View Post
Yes, and I assume yes since I've only seen it on anodized surfaces.
Also, next time you set a rivet with the squeezer, watch and see if you spot a little puff of smoke. I would love to know what that one is.
Don't breathe it in. That's the chromate coating coming off the rivet.

Quote:
To comply with AN Standards, the manufacturers must put a protective surface coating on the rivets. This may be zinc chromate, metal spray, or an anodized finish.

The protective coating on a rivet is identified by its color. A rivet coated with zinc chromate is yellow, an anodized surface is pearl gray, and the metal sprayed rivet is identified by a silvery gray color. If a situation arises in which a protective coating must be applied on the job, paint the rivet with zinc chromate before it is used and again after it is driven.
https://monroeaerospace.com/informational-rivets.php
Reply With Quote
  #5  
Old 04-24-2019, 06:29 PM
scrollF4's Avatar
scrollF4 scrollF4 is online now
Moderator, Asst. Line Boy
 
Join Date: Jan 2010
Location: Flower Mound, TX
Posts: 1,631
Default

The puff of smoke is intense momentary heat created by the molecular friction generated by the rivet squeeze.
Seriously.

The radial lines are gravity lines radiating from the worm hole singularity you created when you squeezed that rivet. See INTERSTELLAR. Congratulations. You squeezed the perfect rivet.
(Not seriously. I have no freakin’ clue.)
__________________
Scroll

Sid "Scroll" Mayeux, Col, USAF (ret)
52F NW Regional/Aero Valley Airport, Roanoke TX (home of DR's Van Cave)
"KELLI GIRL" N260KM RV-7A tipper
Catch her on YouTube's "Because I Fly!" channel

Exemption waived.
Proud and grateful 2021 -=VAF=- Contributor

PS: I am not an influencer. I have no influence. Just ask my kids.

Last edited by scrollF4 : 04-24-2019 at 06:33 PM.
Reply With Quote
  #6  
Old 04-24-2019, 06:30 PM
jcarne's Avatar
jcarne jcarne is offline
 
Join Date: Jul 2016
Location: Worland, Wyoming
Posts: 1,983
Default

Quote:
Originally Posted by 1001001 View Post
Don't breathe it in. That's the chromate coating coming off the rivet.


https://monroeaerospace.com/informational-rivets.php
Yep, I always try to exhale if I'm squeezing with my face close to a rivet, I figured that stuff can't be good in the lungs.
__________________
Jereme Carne
PPL
RV-7A Flying as of 03/2021
Exempt but gladly paying!
Reply With Quote
  #7  
Old 04-24-2019, 08:30 PM
ShortSnorter ShortSnorter is offline
 
Join Date: Dec 2013
Location: NOLA
Posts: 350
Default

Quote:
Originally Posted by scrollF4 View Post
The puff of smoke is intense momentary heat created by the molecular friction generated by the rivet squeeze.
Seriously.

The radial lines are gravity lines radiating from the worm hole singularity you created when you squeezed that rivet. See INTERSTELLAR. Congratulations. You squeezed the perfect rivet.
(Not seriously. I have no freakin? clue.)
For 2 nanoseconds I thought I had something to brag about.
__________________
Ryan
RV-14 In-Progress
Build Site
Reply With Quote
  #8  
Old 04-24-2019, 09:58 PM
wirejock's Avatar
wirejock wirejock is offline
 
Join Date: Oct 2005
Location: Estes Park, CO
Posts: 4,765
Default Smoke

That's probably why I no longer require a squeezer to set rivets. I just pinch them between my fingers. Weird superpower I know.
__________________
Larry Larson
Estes Park, CO
wirejock at yahoo dot com
Donated 01/01/2021, plus a little extra.
RV-7A #73391, N511RV reserved (2,000+ hours)
Empennage, wings, fuse, finishing kit, now FWF
Disclaimer
I cannot be, nor will I be, held responsible if you try to do the same things I do and it does not work and/or causes you loss, injury, or even death in the process.
Reply With Quote
  #9  
Old 04-25-2019, 05:28 AM
N804RV's Avatar
N804RV N804RV is offline
 
Join Date: May 2013
Location: Mount Vernon, Wa
Posts: 827
Default

I got this when I set the first couple of rivets on the webs to the fuselage center section halves. After that, I put the manufactured heads to the anodized part and It didn't happen anymore.
__________________
Ken W.
Mount Vernon, WA
2021 VAF Supporter
Reply With Quote
  #10  
Old 04-25-2019, 06:57 AM
ShortSnorter ShortSnorter is offline
 
Join Date: Dec 2013
Location: NOLA
Posts: 350
Default

Quote:
Originally Posted by N804RV View Post
I got this when I set the first couple of rivets on the webs to the fuselage center section halves. After that, I put the manufactured heads to the anodized part and It didn't happen anymore.
I considered that until I reread the note below in the plans. Nothing in the plans jumps out out me as the reasoning, but as always you know Van's put it there for a reason.

__________________
Ryan
RV-14 In-Progress
Build Site
Reply With Quote
Reply


Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

vB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump


All times are GMT -6. The time now is 07:08 AM.


The VAFForums come to you courtesy Delta Romeo, LLC. By viewing and participating in them you agree to build your plane using standardized methods and practices and to fly it safely and in accordance with the laws governing the country you are located in.