Freethought & Rationalism Archive

Oxidizing Material · 06-07-2003, 12:45 PM

The title pretty much explains it all. I need to fix an aluminum pin (one of the prongs snapped off) and I already learned before that welding aluminum = aluminum vapour instead of fusion so I'm wondering if there is a special epoxy or something that can pretty much cement this prong to the pin again. The pin bends to keep in place, hence the snapping, but I found some Superglue and am wondering if that would work well enough to weld the things together.

Cheiron · 06-07-2003, 05:02 PM

I'm not trying to pry, but if it's a shear pin you're better off replacing the pin with another shear pin. If you try to fix it you may strengthen it to a point that is bad for the other machinery around it.

As for putting it back together. instead of trying to weld it, try to solder it.

Hope i could be of help.

Oxidizing Material · 06-07-2003, 05:07 PM

It's a buttonhole pin, not a mechanical pin. Something that goes on a piece of clothing, actually. I had a soldering iron at one point in the past in which I tried to soldier to aluminum, but all it did was melt the aluminum itself whenver the solider touched it and eventually fucked up the item beyond repair. All I'm looking for is a sort of epoxy or wonder treatment to bind Al A to Al B

faust · 06-07-2003, 07:52 PM

scuff up the two ends you want bound and try JB Weld.
For best effect use a C-clamp and let it set for a day or so. Aluminum is difficult to get sticky, but that might help.

missus_gumby · 06-07-2003, 09:13 PM

This thread does not have the distinctive ~Elsewhere~ 'twang' to it. Therefore, it is being moved to Misc Disc.

Martin

seebs · 06-08-2003, 11:00 AM

It bothers me for this thread to have been started by someone with that particular user name.

MacPrince · 06-08-2003, 11:15 AM

Double-post.

MacPrince · 06-08-2003, 11:16 AM

Quote:

Originally posted by seebs
It bothers me for this thread to have been started by someone with that particular user name.

Glad I'm not the only one who was bothered by that...

jayh · 06-08-2003, 02:42 PM

A useful source of this type of information:

http://www.thistothat.com/

Adhesive recommendations for all sorts of materials.

Dank · 06-08-2003, 08:41 PM

The problem is the miniscule contact area for an adhesive to work. I would:

1. bend the broken end over, and fashion another end piece that links to it, or

2. epoxy the pieces together, then wrap the joint in upholstery thread and epoxy that

Good luck

06-07-2003, 12:45 PM	#1
Oxidizing Material Banned Join Date: Jan 2002 Location: Somewhere where I don't know where I am Posts: 2,069	What binds aluminum? The title pretty much explains it all. I need to fix an aluminum pin (one of the prongs snapped off) and I already learned before that welding aluminum = aluminum vapour instead of fusion so I'm wondering if there is a special epoxy or something that can pretty much cement this prong to the pin again. The pin bends to keep in place, hence the snapping, but I found some Superglue and am wondering if that would work well enough to weld the things together.

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06-07-2003, 05:02 PM	#2
Cheiron Regular Member Join Date: May 2003 Location: Edmonton, Alberta, Canada Posts: 371	I'm not trying to pry, but if it's a shear pin you're better off replacing the pin with another shear pin. If you try to fix it you may strengthen it to a point that is bad for the other machinery around it. As for putting it back together. instead of trying to weld it, try to solder it. Hope i could be of help.

06-07-2003, 05:07 PM	#3
Oxidizing Material Banned Join Date: Jan 2002 Location: Somewhere where I don't know where I am Posts: 2,069	It's a buttonhole pin, not a mechanical pin. Something that goes on a piece of clothing, actually. I had a soldering iron at one point in the past in which I tried to soldier to aluminum, but all it did was melt the aluminum itself whenver the solider touched it and eventually fucked up the item beyond repair. All I'm looking for is a sort of epoxy or wonder treatment to bind Al A to Al B

06-07-2003, 07:52 PM	#4
faust Senior Member Join Date: Apr 2003 Location: baton rouge, la Posts: 539	scuff up the two ends you want bound and try JB Weld. For best effect use a C-clamp and let it set for a day or so. Aluminum is difficult to get sticky, but that might help.

06-07-2003, 09:13 PM	#5
missus_gumby Veteran Member Join Date: Oct 2000 Location: UK Posts: 1,898	This thread does not have the distinctive ~Elsewhere~ 'twang' to it. Therefore, it is being moved to Misc Disc. Martin

06-08-2003, 11:00 AM	#6
seebs Contributor Join Date: May 2002 Location: Saint Paul, MN Posts: 24,524	It bothers me for this thread to have been started by someone with that particular user name.

06-08-2003, 11:15 AM	#7
MacPrince Regular Member Join Date: Oct 2001 Location: A suburb of Chicago you've probably never heard of Posts: 282	Double-post.

06-08-2003, 02:42 PM	#9
jayh Veteran Member Join Date: Oct 2001 Posts: 4,606	A useful source of this type of information: http://www.thistothat.com/ Adhesive recommendations for all sorts of materials.

06-08-2003, 08:41 PM	#10
Dank Regular Member Join Date: May 2002 Location: Oregon, USA Posts: 192	The problem is the miniscule contact area for an adhesive to work. I would: 1. bend the broken end over, and fashion another end piece that links to it, or 2. epoxy the pieces together, then wrap the joint in upholstery thread and epoxy that Good luck

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