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LarryRosen
Joined: 16 Jan 2006
Posts: 415
Location: Medford, NJ
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 Posted: Thu Feb 11, 2010 7:53 pm Post subject: Riveting Help |
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I just set a row of -3 flush rivets. The shop heads are fine, but the
manufactured head has a slight mushroom shape. Just not flat like the
rest of the rivets that I have set. I am using a 3x rivet gun with a
swivel flush set.
What have I done wrong?
Too much pressure on the bucking bar?
Not enough air pressure to the rivet gun?
Your incites are appreciated.
Larry Rosen
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_________________
Larry Rosen
#40356
N205EN (reserved)
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rv10builder(at)verizon.ne
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| Posted: Thu Feb 11, 2010 8:25 pm Post subject: Riveting Help |
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I'll guess too much initial pressure on the bar that lifted the rivet up
slightly before it was riveted on. I'll assume you have used the same air
pressure, about 40 is what I use for -3 rivets so unless you changed that
that should not be an issue..
Pascal
--------------------------------------------------
From: "Larry Rosen" <N205EN(at)gmail.com>
Sent: Thursday, February 11, 2010 7:49 PM
To: <rv10-list(at)matronics.com>
Subject: Riveting Help
| Quote: |
I just set a row of -3 flush rivets. The shop heads are fine, but the
manufactured head has a slight mushroom shape. Just not flat like the
rest of the rivets that I have set. I am using a 3x rivet gun with a
swivel flush set.
What have I done wrong?
Too much pressure on the bucking bar?
Not enough air pressure to the rivet gun?
Your incites are appreciated.
Larry Rosen
|
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ricksked(at)cox.net
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| Posted: Thu Feb 11, 2010 8:50 pm Post subject: Riveting Help |
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Larry get rid of the swivel head and get a set that has a hard rubber edge...I've been riveting bottom skins on a friends -10 the last few days and I had to go get my set to show that is the set...not the riveter or bucker....I plan to be in your neck of the woods in a week or so..sorry not with the RV...weather there SUX....let's get together
Rick Sked
N246RS
Flying!!
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jcumins(at)jcis.net
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| Posted: Fri Feb 12, 2010 9:43 am Post subject: Riveting Help |
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Larry I have been there my self, a old friend of mine with over 40 years of
sheet metal experience stated that it was due to the rivet gun needs more
solid holding against the manufacture head of the rivet, the rivet set you
are using has a spring built in it and the set is bouncing off the rivet
just slightly.
He said not more pressure just more control over the gun and the set.
It worked great for me once I figured it out,
Contact me off list if you like and I will be glad to explain it to you
better,
John
--
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n223rv(at)wolflakeairport
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| Posted: Fri Feb 12, 2010 10:32 am Post subject: Riveting Help |
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Like he mentioned, push harder on the gun side than the bucking bar
side. Make sure you gun pressure is not too hard. I adjust the
pressure so it takes about 1 full second to just set the rivet
properly.....
Sent from my iPhone
On Feb 12, 2010, at 12:38 PM, "John Cumins" <jcumins(at)jcis.net> wrote:
[quote]
Larry I have been there my self, a old friend of mine with over 40
years of
sheet metal experience stated that it was due to the rivet gun needs
more
solid holding against the manufacture head of the rivet, the rivet
set you
are using has a spring built in it and the set is bouncing off the
rivet
just slightly.
He said not more pressure just more control over the gun and the set.
It worked great for me once I figured it out,
Contact me off list if you like and I will be glad to explain it to
you
better,
John
--
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DLIUDVINAITIS(at)aol.com
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| Posted: Fri Feb 12, 2010 1:50 pm Post subject: Riveting Help |
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LARRY,
SOUNDS LIKE TO MUCH BOUNCE ON MACHINING SIDE. SET YOUR GUN PRESSURE TO 35-45 PSI, USE LITTLE PRESSURE (at) MANUFACTURE HEAD SIDE NOT TO BOUNCE ON THE PRETTY SIDE, HOLD YOUR BUCKING BAR FLAT TO MACHINED HEAD AND APPLY SLIGHT PRESSURE AND CONTROL. PULL TRIGGER WITH SLIGHT BURST, ITS ABOUT CONTROL OVER THE BOUNCE. I LIKE TO USE A SMALL BUCKING BAR AND 45 PSI WITH MY 3X GUN WITH FLUSH SET RUBBER PROTECTED.
DAVE, #40466
CENTRAL NJ, BLM
In a message dated 2/11/2010 9:53:29 P.M. Central Standard Time, N205EN(at)gmail.com writes:
| Quote: | --> RV10-List message posted by: Larry Rosen <N205EN(at)gmail.com>
I just set a row of -3 flush rivets. The shop heads are fine, but the
manufactured head has a slight mushroom shape. Just not flat like the
rest of the rivets that I have set. I am using a 3x rivet gun with a
swivel flush set.
What have I done wrong?
Too much pressure on the bucking bar?
Not enough air pressure to the rivet gun?
Your incites are appreciated.
Larry ======================== the ties Day ================================================ - MATRONICS WEB FORUMS ================================================ - List Contribution Web Site sp; ===================================================
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[quote][b]
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