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05-23-2011, 06:52 PM
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Join Date: Oct 2010
Location: Berwick, Nova Scotia, Canada
Posts: 83
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Shop Head Rivet Gauge
Good Day,
Could someone please explain to me the proper use of this tool? I bought mine from Plane Tools. I set my first 12 rivets tonight and went to use the guage but I'm not sure which way it goes. Does the rivet have to fit under the knotch, or not? Does the rivet have to fit inside the knotch, or not?
Thanks for the help!
Cheers
Chris |
05-23-2011, 07:00 PM
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Join Date: Jan 2006
Location: Vonore, TN
Posts: 368
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Go-NoGo
If the rivet gage is like most, it has a drilled hole on one end and a notch on the other. If you place the hole over the shop head and the gage rattles around, you haven't set the rivet enough. The notch on the other end indicates if the rivet is stetting too high (or low if the shop head is squished). Your best bet is to find another builder or technical counselor in your area and practice some. They can also help out with technique and short cuts.
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John Tierney
Vonore, TN
RV-7A - N777JT Flying
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05-23-2011, 07:01 PM
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Join Date: Nov 2006
Location: Perham, MN
Posts: 350
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I struggled with the same thing...
Good question...
I assume these are the same as sold by Avery Tools. The shop head should not quite fit under the notch (height), and should not quite fit inside the hole (width) and should meet all other requirements of FAA Advisory Circular AC-43. At first I thought they should "just fit", and had to re-do some of my first attempts.
(By "not quite fit" I mean the shop head should be higher than the notch and bigger than the hole)
Edit: Like John said, it's a go-nogo gauge: if the shop head fits under the notch, or if it fits inside the hole, it's "NOGO".
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Paul Winkels
RV7 Standard Build - First flight 4/16/2016 - Now Flying!
Last edited by Sparky : 05-23-2011 at 07:24 PM.
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06-15-2011, 07:51 PM
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Join Date: Oct 2005
Location: Highland Village, TX
Posts: 1,519
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Rivet shop head "official" tolerances
I'm familiar with the general guide lines for rivet installation that the shop head diameter should be 1.5D and the height should be .5D. This is about all the detail that I can find in AC43.13.
I have one article that shows acceptable range of Min 1.25D to Max 1.66D with corresponding head height of .66D to .33D, but I can not document the source of this article.
Is there a NASA or Mil-Spec reference that shows the shop head tolerances and inspection standards for AD rivets?
Thanks.
__________________
Rick Aronow,
A&P
Flying 7A Slider;
RV-12 SOLD
Highland Village,TX
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06-15-2011, 08:01 PM
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Join Date: Jun 2010
Location: Brisbane Australia
Posts: 166
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rule of thumb
Hi Rick,
Rule of thumb for a correct driven rivet, 1.5D dia and .5D hight. If you really want a spec I might be able to search at work, I'm sure others might already have the spec.
Cheers
Nick
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Nick Purcell
Licensed on B767, A330 Eng/Airframe
Fixing up RV6, building a Stewart S51
Basically a major overhaul of everything.
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06-15-2011, 08:05 PM
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Join Date: May 2008
Location: central oregon
Posts: 1,089
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Hi Rick,
if you look at this thread, my answer #3 has the specs and a link for all the specs you should want.
http://www.vansairforce.com/communit...ivet+shop+head
good luck 
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