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williamtsullivan(at)att.n
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 Posted: Sun Aug 14, 2011 8:34 am Post subject: Welding |
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Bob, I agree that the flux left in a weld might be a problem. But, that is operator error. With the heat and feed set right, there will be no gas holes if the welder is paying attention.
Oxy-acetylene is one of the best tools around. I love the Victor Firepower sets- handy, light, and cheap. Parts available anywhere. Welding with gas, or TIG, requires a bit more skill level than MIG, though. Wish I had a Victor, but all I've got right now is a huge commercial torch with heavy hoses. Good for working on a bridge or something, but awkward around the Kolb. Best advice yet is to get a scrap pile and practice.
Bill Sullivan
[quote][b]
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phactor9
Joined: 16 Jun 2011
Posts: 78
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| Posted: Sun Aug 14, 2011 10:00 am Post subject: Welding |
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Great info guys. Oxy-A looks like a very interesting option. The lowest I've found on the VICTOR Firepower 250 (sans tanks) is $145
http://www.threemulesweld.com/vicfp2550.html
But if I didn't get tanks, where would I get those? They would probably be more expensive buying separately, I'm guessing. Complete totes (with tanks) look do-able:
WITH tanks $309 + $17 s/h
http://www.weldfabulous.com/Torch-Outfits/Portable-Torch/Victor-Equipment/Victor-0384-0936-Genuine-Portable-p4543451.html
$311 with free s/h
http://www.toolrage.com/prodview.asp?sku=VCT-0384-0990
These look like good deals?
Phil H.
--- On Sun, 8/14/11, william sullivan <williamtsullivan(at)att.net> wrote:
| Quote: |
From: william sullivan <williamtsullivan(at)att.net>
Subject: Re: Welding
To: "kolb list" <kolb-list(at)matronics.com>
Date: Sunday, August 14, 2011, 12:31 PM
Bob, I agree that the flux left in a weld might be a problem. But, that is operator error. With the heat and feed set right, there will be no gas holes if the welder is paying attention.
Oxy-acetylene is one of the best tools around. I love the Victor Firepower sets- handy, light, and cheap. Parts available anywhere. Welding with gas, or TIG, requires a bit more skill level than MIG, though. Wish I had a Victor, but all I've got right now is a huge commercial torch with heavy hoses. Good for working on a bridge or something, but awkward around the Kolb. Best advice yet is to get a scrap pile and practice.
Bill Sullivan
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et=_blank>http://forums.matronics.com
llow target=_blank>http://www.matronics.com/contribution
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[quote][b]
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williamtsullivan(at)att.n
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| Posted: Sun Aug 14, 2011 10:16 am Post subject: Welding |
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Phil- Buy the tanks at your local gas supply, or rent them. A lot of gas companies won't fill or re-fill tanks they didn't supply. Liability reasons, I think. I have a good relationship with a local supplier, originally through where I worked. He's a little more expensive, but the service is worth it and he is only 5 minutes from here. I bought them from him, and just exchange them for a price. If you use a lot, you might consider a rental. check with a local dealer. You will have to replace small parts now and then- like a tip, or if your grinder goes through a hose or something. Nice to know the guy.
--- On Sun, 8/14/11, Phil <phactor9(at)yahoo.com> wrote:
| Quote: |
From: Phil <phactor9(at)yahoo.com>
Subject: Re: Re: Welding
To: kolb-list(at)matronics.com
Date: Sunday, August 14, 2011, 1:58 PM
Great info guys. Oxy-A looks like a very interesting option. The lowest I've found on the VICTOR Firepower 250 (sans tanks) is $145
http://www.threemulesweld.com/vicfp2550.html
But if I didn't get tanks, where would I get those? They would probably be more expensive buying separately, I'm guessing. Complete totes (with tanks) look do-able:
WITH tanks $309 + $17 s/h
http://www.weldfabulous.com/Torch-Outfits/Portable-Torch/Victor-Equipment/Victor-0384-0936-Genuine-Portable-p4543451.html
$311 with free s/h
http://www.toolrage.com/prodview.asp?sku=VCT-0384-0990
These look like good deals?
Phil H.
--- On Sun, 8/14/11, william sullivan <williamtsullivan(at)att.net> wrote:
| Quote: |
From: william sullivan <williamtsullivan(at)att.net>
Subject: Re: Welding
To: "kolb list" <kolb-list(at)matronics.com>
Date: Sunday, August 14, 2011, 12:31 PM
Bob, I agree that the flux left in a weld might be a problem. But, that is operator error. With the heat and feed set right, there will be no gas holes if the welder is paying attention.
Oxy-acetylene is one of the best tools around. I love the Victor Firepower sets- handy, light, and cheap. Parts available anywhere. Welding with gas, or TIG, requires a bit more skill level than MIG, though. Wish I had a Victor, but all I've got right now is a huge commercial torch with heavy hoses. Good for working on a bridge or something, but awkward around the Kolb. Best advice yet is to get a scrap pile and practice.
Bill Sullivan
| Quote: |
=nofollow target=_blank>http://www.matronics.com/Navigator?Kolb-List
et=_blank>http://forums.matronics.com
llow target=_blank>http://www.matronics.com/contribution
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get=_blank rel=nofollow>http://www.matronics.com/Navigator?Kolb-List
=nofollow>http://forums.matronics.com
blank rel=nofollow>http://www.matronics.com/contribution
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[quote][b]
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tc1917(at)bellsouth.net
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| Posted: Tue Aug 16, 2011 2:05 am Post subject: welding |
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been watching from a distance for awhile. many interesting stories about
welding. been a welder since I was 13. first burned my hand -- err, built
a go kart back then. learned that black metal can still be hot. anyway,
never used a tig or mig in my life. got behind something like that once
using gas and got sick. something about the argon got to me. can weld
inside galvanized or zinc, no problem. I have done many frame repairs and
modifications with gas welding. one thing I want to mention to newbees.
NEVER use coat hangers or any other such rods for welding unless you WANT it
to break. pony up and get the good stuff. for normal frames I would use
3/32. preheat everything you are going to fuse and when done, taping on the
weld with a slag hammer or such to expand the welded joint helps shrinkage.
when done, use the torch to heat all around the weld good and hot but NOT
red and let air cool, no breezes. NEVER use water to cool unless it is
absolutely necessary and then you MUST reheat to reset the steel stress.
braising is something different. takes lots of practice and is not really
very strong and very heavy. aluminum should be done by the pros. you
cannot believe how fast it will drop or melt. remember one thing about gas
welding, it is more melting the metals together in a strong pattern than
anything else. stick welding is different in so much as you are laying a
bead and each side of the bead fuses. gas welding is laying a bead but more
melting all the surfaces together. watch for a bubble and push the bubble
around. I am old now and vision is gone. used to be able to weld a zipper
on a crotch without burning the hair! now I am lucky if I dont set myself
on fire. lots of different methods but for gosh sake, get a lot of practice
BEFORE you weld frame for an airplane. your life or the lifes of others is
at stake and if it breaks, well, you know the rest. there are only a few
ways to weld and a thousand ways NOT to weld. best is taking a course. and
remember, black metal is still hot. ted cowan, slingshot 912ul zoom zoom
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David d.
Joined: 04 Jul 2011
Posts: 60
Location: Fitzgerald Ga.
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| Posted: Wed Aug 17, 2011 8:44 am Post subject: Re: Welding |
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Excellent advice there Mr. Cowan. I have been doing farm welding for 40 plus years. I would not weld anything and then get into it and fly.
With that said , do kit type planes such as a Kolb require welding by the purchaser of such kits?
David d.
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byoungplumbing(at)gmail.c
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| Posted: Wed Aug 17, 2011 9:28 am Post subject: Welding |
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With that said , do kit type planes such as a Kolb require welding by the
purchaser of such kits?
David d.
no and yes.. if you build to plans and need no modifications to meet
your special needs,, the answer is no. as for my mkiii,,, i used
different seats, and had to weld in some brackets to hold my seats, if you
dont know how or are not comfortable welding,,,, find a good welder and
pay him for the work you need... make sure he knows it is on thin wall
tubing, and make sure he is comfortable, if not find someone different. i
just went over 700 hours and all is well.
boyd young
mkiii utah
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