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GrummanDude
Joined: 15 Jan 2006
Posts: 926
Location: Auburn, CA
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 Posted: Mon Aug 17, 2009 8:36 am Post subject: Metal-to-Metal bonding |
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Bob, I watched elsewhere and seen your input on various bonding agents. What do you know about Hysol 9330? I've got approval to do a horizontal repair with it. I also have designed new vertical braces which are larger and designed more like the bulkhead just forward of the Horizontal. The horizontal brace (against the bottom of the fuselage) is designed more like a bridge truss. Based on calcs, the braces are designed to fail after the bonded joint fails, about 6000 psi. It'll be interesting to see when it's done.
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Gary
AuCountry Aviation
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az_gila
Joined: 17 Jun 2006
Posts: 99
Location: Tucson, AZ
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| Posted: Mon Aug 17, 2009 11:42 am Post subject: Metal-to-Metal bonding |
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Gary, I got DER approval (from a Fletchair recommended guy) for Hysol
1 C for a horizontal spar repair.
http://www.tedpella.com/technote_html/891-60%20TN.pdf
It's shear strength is much less than the 6000 psi you mention -
nearer 1500 psi.
Is the 6000 lbs. the total force? Has the area of the joint been
taken into account?
gil A
At 09:33 AM 8/17/2009, you wrote:
| Quote: | Bob, I watched elsewhere and seen your input on various bonding
agents. What do you know about Hysol 9330? I've got approval to do
a horizontal repair with it. I also have designed new vertical
braces which are larger and designed more like the bulkhead just
forward of the Horizontal. The horizontal brace (against the bottom
of the fuselage) is designed more like a bridge truss. Based on
calcs, the braces are designed to fail after the bonded joint fails,
about 6000 psi. It'll be interesting to see when it's done.
|
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GrummanDude
Joined: 15 Jan 2006
Posts: 926
Location: Auburn, CA
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| Posted: Wed Aug 19, 2009 12:33 pm Post subject: Metal-to-Metal bonding |
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Bob, no words of wisdom?
--
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Gary
AuCountry Aviation
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