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Posted by steamer on June 18, 2008, 12:48 pm
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--Spent yesterday welding up a tray that will hold 3: 5 gallon
propane bottles on the roof of a hearse (bwahaha). The final bit was to weld
expanded metal to the framework, something I've had dreadful luck doing
successfully in the past. But I think I got it right! Gotta say it's easier
with the Maxstar than it was with the Econotig, heh. I've made the welds in
pairs, every 6" or so, on the theory that one may fail under extreme
conditions but another tack next to it may be sufficient reinforcement.
--
"Steamboat Ed" Haas : "Hold on! we're passing
Hacking the Trailing Edge! : through the moronosphere!"
www.nmpproducts.com
---Decks a-wash in a sea of words---
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Posted by Grant Erwin on June 18, 2008, 2:50 pm
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steamer wrote:
> --Spent yesterday welding up a tray that will hold 3: 5 gallon
> propane bottles on the roof of a hearse (bwahaha). The final bit was to weld
> expanded metal to the framework, something I've had dreadful luck doing
> successfully in the past. But I think I got it right! Gotta say it's easier
> with the Maxstar than it was with the Econotig, heh. I've made the welds in
> pairs, every 6" or so, on the theory that one may fail under extreme
> conditions but another tack next to it may be sufficient reinforcement.
>
I have found welding up expanded metal to be really easy with MIG. I just set
up the machine to weld sheet metal, and start the arc on the base metal near one
of the apexes of an opening, and let it fill the end of the opening until the
puddle is as deep as the sheet metal. I weld about every 4", which goes fast.
Grant
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Posted by John L. Weatherly on June 19, 2008, 9:14 am
Please log in for more thread options steamer wrote:
> --Spent yesterday welding up a tray that will hold 3: 5 gallon
> propane bottles on the roof of a hearse (bwahaha). The final bit was to
> weld expanded metal to the framework, something I've had dreadful luck
> doing successfully in the past. But I think I got it right! Gotta say it's
> easier with the Maxstar than it was with the Econotig, heh. I've made the
> welds in pairs, every 6" or so, on the theory that one may fail under
> extreme conditions but another tack next to it may be sufficient
> reinforcement.
>
Like Grant said, its usually done with MIG. Just glorified tacks on the low
spots, really. Sand your sharp edges, as they like to grab clothing and
skin.
I have to weld up crazy stuff all the time. Why propane on a hearse?
--
John L. Weatherly
please remove XXXs to reply via email
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Posted by Grant Erwin on June 19, 2008, 12:19 pm
Please log in for more thread options John L. Weatherly wrote:
> steamer wrote:
>
>
>>--Spent yesterday welding up a tray that will hold 3: 5 gallon
>>propane bottles on the roof of a hearse (bwahaha). The final bit was to
>>weld expanded metal to the framework, something I've had dreadful luck
>>doing successfully in the past. But I think I got it right! Gotta say it's
>>easier with the Maxstar than it was with the Econotig, heh. I've made the
>>welds in pairs, every 6" or so, on the theory that one may fail under
>>extreme conditions but another tack next to it may be sufficient
>>reinforcement.
>>
>
>
> Like Grant said, its usually done with MIG. Just glorified tacks on the low
> spots, really. Sand your sharp edges, as they like to grab clothing and
> skin.
Speaking of expanded metal, it is often possible to shear the stuff so that
the shear line goes right through a joined part so you get no "whiskers"
sticking off. Only if you're doing a rectangular piece, however. If you're
making something like BBQ cooking grates, though, it's worth planning the
project so the expanded metal comes out like this. Very neat and tidy looking
and much safer.
Grant
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Posted by SteveB on June 19, 2008, 2:24 pm
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> John L. Weatherly wrote:
>
>> steamer wrote:
>>
>>
>>>--Spent yesterday welding up a tray that will hold 3: 5 gallon
>>>propane bottles on the roof of a hearse (bwahaha). The final bit was to
>>>weld expanded metal to the framework, something I've had dreadful luck
>>>doing successfully in the past. But I think I got it right! Gotta say
>>>it's
>>>easier with the Maxstar than it was with the Econotig, heh. I've made the
>>>welds in pairs, every 6" or so, on the theory that one may fail under
>>>extreme conditions but another tack next to it may be sufficient
>>>reinforcement.
>>>
>>
>>
>> Like Grant said, its usually done with MIG. Just glorified tacks on the
>> low
>> spots, really. Sand your sharp edges, as they like to grab clothing and
>> skin.
>
> Speaking of expanded metal, it is often possible to shear the stuff so
> that
> the shear line goes right through a joined part so you get no "whiskers"
> sticking off. Only if you're doing a rectangular piece, however. If you're
> making something like BBQ cooking grates, though, it's worth planning the
> project so the expanded metal comes out like this. Very neat and tidy
> looking
> and much safer.
>
> Grant
Thank you for stealing my thunder. Yes, you get to weld on the fattest part
there. Start your puddle on the base metal, like a poster said before, and
let the puddle build up to flow to the expanded metal tab, or wash it over
there with a hand motion. Comes out to cover up all those little sharp
points.
Steve
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> propane bottles on the roof of a hearse (bwahaha). The final bit was to weld
> expanded metal to the framework, something I've had dreadful luck doing
> successfully in the past. But I think I got it right! Gotta say it's easier
> with the Maxstar than it was with the Econotig, heh. I've made the welds in
> pairs, every 6" or so, on the theory that one may fail under extreme
> conditions but another tack next to it may be sufficient reinforcement.
>