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Posted by Dimi Shahbaz on February 5, 2008, 12:12 am
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Hi,
I'm wondering what the best way to do this is (I'm not a metal
worker). I have a spherical aluminum mesh, 3" in diameter, sliced in
half. I want to join the circular edge of one of these halves to a
piece of aluminum foil. In addition, the resulting merged unit must
be thermally stable, as it will be exposed to (relatively low) heat
when used (ie., no glues or adhesives). The joining itself will not
be under extreme stress or weight in use, so one or 2 joining spots
are enough, enough to keep it tacked in place.
Is there a welding (or other) process that can accomplish this?
Thank you
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Posted by Tom Gardner on February 5, 2008, 12:57 am
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> Hi,
>
> I'm wondering what the best way to do this is (I'm not a metal
> worker). I have a spherical aluminum mesh, 3" in diameter, sliced in
> half. I want to join the circular edge of one of these halves to a
> piece of aluminum foil. In addition, the resulting merged unit must
> be thermally stable, as it will be exposed to (relatively low) heat
> when used (ie., no glues or adhesives). The joining itself will not
> be under extreme stress or weight in use, so one or 2 joining spots
> are enough, enough to keep it tacked in place.
>
> Is there a welding (or other) process that can accomplish this?
>
> Thank you
>
3M makes an epoxy that is good to 500F
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Posted by Mechanical Magic on February 5, 2008, 1:05 am
Please log in for more thread options There a number of ways.
If your materials have sufficient thickness they can be TIG welded.
Thin materials can be furnace brazed.
For low temperature applications there are solders for Aluminum.
How about giving me some numbers, dimensions, and the quantity, is
this a thoudsand or a one off?
Dave
> Hi,
>
> I'm wondering what the best way to do this is (I'm not a metal
> worker). I have a spherical aluminum mesh, 3" in diameter, sliced in
> half. I want to join the circular edge of one of these halves to a
> piece of aluminum foil. In addition, the resulting merged unit must
> be thermally stable, as it will be exposed to (relatively low) heat
> when used (ie., no glues or adhesives). The joining itself will not
> be under extreme stress or weight in use, so one or 2 joining spots
> are enough, enough to keep it tacked in place.
>
> Is there a welding (or other) process that can accomplish this?
>
> Thank you
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Posted by Dimi Shahbaz on February 5, 2008, 2:38 am
Please log in for more thread options As far as thickness, I think that's a problem. I want to use regular
commercial aluminum foil, so 0.2 mm thickness. The diameter of the
mesh will be 3", the foil will extend past that a few inches. If it
can be made in the thousands, that would be ideal, and preferably at a
low cost. Non-corrosive metals other than aluminum would be fine as
well, if the process is easier.
Thanks again
wrote:
> There a number of ways.
> If your materials have sufficient thickness they can be TIG welded.
> Thin materials can be furnace brazed.
> For low temperature applications there are solders for Aluminum.
>
> How about giving me some numbers, dimensions, and the quantity, is
> this a thoudsand or a one off?
> Dave
>
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Posted by Ned Simmons on February 5, 2008, 11:29 am
Please log in for more thread options On Mon, 4 Feb 2008 23:38:34 -0800 (PST), Dimi Shahbaz
>As far as thickness, I think that's a problem. I want to use regular
>commercial aluminum foil, so 0.2 mm thickness. The diameter of the
>mesh will be 3", the foil will extend past that a few inches. If it
>can be made in the thousands, that would be ideal, and preferably at a
>low cost. Non-corrosive metals other than aluminum would be fine as
>well, if the process is easier.
>
RTV silicone should work. There are easily available formulations good
up to 500F. The common hardware store stuff is usable to 350F. More
exotic flavors go higher.
Some sort of air powered dispenser and perhaps some fixturing would be
helpful if you're making thousands.
--
Ned Simmons
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>
> I'm wondering what the best way to do this is (I'm not a metal
> worker). I have a spherical aluminum mesh, 3" in diameter, sliced in
> half. I want to join the circular edge of one of these halves to a
> piece of aluminum foil. In addition, the resulting merged unit must
> be thermally stable, as it will be exposed to (relatively low) heat
> when used (ie., no glues or adhesives). The joining itself will not
> be under extreme stress or weight in use, so one or 2 joining spots
> are enough, enough to keep it tacked in place.
>
> Is there a welding (or other) process that can accomplish this?
>
> Thank you
>