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Got me a Lincoln TIG 200
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et...@whidbey.com
Sep 30, 2016, 12:49:04 PM9/30/16
to
So, after looking at tubular reviews I decided the TIG 200 was a
good buy.
Tried it out last night for the first time. Just on 120 volts. I
was able to weld .125 thick 6061 using 3/32 filler rod with no
problems. I fidled with the AC balance and the default 75% setting
works great. I did try the 90% setting and even though it welded well
the weld appearance was not so good, not shiny. Played with the
frequency setting and it was really interesting to watch the arc width
change. I didn't weld much with the DC but did try out the pulse
feature. It is obvious that I will need too learn how to use the pulse
feature but I can see how it will be great for thin stuff. The high
frequency start function works well, it will throw an arc about 5/8
inch.
I have a few small gripes. It uses an air cooled torch and comes
with regular, not gas lens, cups and so on. The torch is a pretty good
one for an air cooled torch, a model PTA-17F. It has the flexible
head.
I bought gas lens stuff for the torch when I bought the welder. My
first welds were made on steel with the standard cup setup and the gas
flow I usually use with gas lenses. I noticed porosity right away.
Changing to a gas lens and the porosity went away and the weld
appearance improved greatly.
The post flow is about 5 seconds and cannot be adjusted. This must
be to cool the torch.
The pedal doesn't have the same feel as the old heavy one for the
Miller welder so I am not sure when I have stepped on it enough to
start the welder. This wouldn't be a problem except there is a slight
delay between stepping on the gas and the arc initiation. A couple
times I didn't think I pressed far enough and the arc started really
hot.
After welding stops if the pedal is pressed right away there is
that damned delay. Another small gripe but I will get used to it.
I am going to make up a water cooling adapter for when the welder
is used in the shop as well as adding a post flow time external to the
machine. I already have the right adjustable time delay relay so it
will be pretty easy (I think) to use the pedal switch to trigger the
time delay relay.
Eric
good buy.
Tried it out last night for the first time. Just on 120 volts. I
was able to weld .125 thick 6061 using 3/32 filler rod with no
problems. I fidled with the AC balance and the default 75% setting
works great. I did try the 90% setting and even though it welded well
the weld appearance was not so good, not shiny. Played with the
frequency setting and it was really interesting to watch the arc width
change. I didn't weld much with the DC but did try out the pulse
feature. It is obvious that I will need too learn how to use the pulse
feature but I can see how it will be great for thin stuff. The high
frequency start function works well, it will throw an arc about 5/8
inch.
I have a few small gripes. It uses an air cooled torch and comes
with regular, not gas lens, cups and so on. The torch is a pretty good
one for an air cooled torch, a model PTA-17F. It has the flexible
head.
I bought gas lens stuff for the torch when I bought the welder. My
first welds were made on steel with the standard cup setup and the gas
flow I usually use with gas lenses. I noticed porosity right away.
Changing to a gas lens and the porosity went away and the weld
appearance improved greatly.
The post flow is about 5 seconds and cannot be adjusted. This must
be to cool the torch.
The pedal doesn't have the same feel as the old heavy one for the
Miller welder so I am not sure when I have stepped on it enough to
start the welder. This wouldn't be a problem except there is a slight
delay between stepping on the gas and the arc initiation. A couple
times I didn't think I pressed far enough and the arc started really
hot.
After welding stops if the pedal is pressed right away there is
that damned delay. Another small gripe but I will get used to it.
I am going to make up a water cooling adapter for when the welder
is used in the shop as well as adding a post flow time external to the
machine. I already have the right adjustable time delay relay so it
will be pretty easy (I think) to use the pedal switch to trigger the
time delay relay.
Eric
Leon Fisk
Sep 30, 2016, 1:45:37 PM9/30/16
to
On Fri, 30 Sep 2016 09:50:33 -0700
et...@whidbey.com wrote:
<snip>
There are quite a few good youtube videos for this welder. Also videos
on the other settings that are new to you, cleaning, frequency...
I would like to have one but can't justify the cost verses how much I
would really use it...
--
Leon Fisk
Grand Rapids MI/Zone 5b
Remove no.spam for email
et...@whidbey.com wrote:
<snip>
>The pedal doesn't have the same feel as the old heavy one for the
>Miller welder so I am not sure when I have stepped on it enough to
>start the welder. This wouldn't be a problem except there is a slight
>delay between stepping on the gas and the arc initiation. A couple
>times I didn't think I pressed far enough and the arc started really
>hot.
I'm guessing the gas pre-flow time may be causing your delay.
>Miller welder so I am not sure when I have stepped on it enough to
>start the welder. This wouldn't be a problem except there is a slight
>delay between stepping on the gas and the arc initiation. A couple
>times I didn't think I pressed far enough and the arc started really
>hot.
There are quite a few good youtube videos for this welder. Also videos
on the other settings that are new to you, cleaning, frequency...
I would like to have one but can't justify the cost verses how much I
would really use it...
--
Leon Fisk
Grand Rapids MI/Zone 5b
Remove no.spam for email
Jon Elson
Sep 30, 2016, 2:55:11 PM9/30/16
to
et...@whidbey.com wrote:
> So, after looking at tubular reviews I decided the TIG 200 was a
> good buy.
> Tried it out last night for the first time. Just on 120 volts. I
> was able to weld .125 thick 6061 using 3/32 filler rod with no
> problems.
That's very impressive! It took me a while to get the feel of doing
> So, after looking at tubular reviews I decided the TIG 200 was a
> good buy.
> Tried it out last night for the first time. Just on 120 volts. I
> was able to weld .125 thick 6061 using 3/32 filler rod with no
> problems.
Aluminum. First problem is nobody told me the work NEVER got hot enough to
glow. Once I realized that bit of info from steel welding would not be
available, things went a bit better. I have a square wave TIG 300, which is
a fantastic machine, but large and heavy.
Gas lenses help reduce gas consumption, and Argon is getting pretty pricey.
Jon
Gunner Asch
Sep 30, 2016, 8:12:06 PM9/30/16
to
Thanks for the review! That 5 second post cool is very important on
a air cooled torch. Remember you are not just cooling the torch, but
the hose/electrode as well. And it can get prettttty warm at the
higher ranges..so you have to pump some gas at it to try to get it
cool.
Gunner
---
This email has been checked for viruses by Avast antivirus software.
https://www.avast.com/antivirus
Larry Jaques
Sep 30, 2016, 8:50:30 PM9/30/16
to
On Fri, 30 Sep 2016 17:11:58 -0700, Gunner Asch <gunne...@gmail.com>
wrote:
>On Fri, 30 Sep 2016 09:50:33 -0700, et...@whidbey.com wrote:
>
>> So, after looking at tubular reviews I decided the TIG 200 was a
>>good buy.
Are you referring to ewe-tubular reviews, Eric?
>> Tried it out last night for the first time. Just on 120 volts. I
>>was able to weld .125 thick 6061 using 3/32 filler rod with no
>>problems. I fidled with the AC balance and the default 75% setting
>>works great. I did try the 90% setting and even though it welded well
>>the weld appearance was not so good, not shiny. Played with the
>>frequency setting and it was really interesting to watch the arc width
>>change. I didn't weld much with the DC but did try out the pulse
>>feature. It is obvious that I will need too learn how to use the pulse
>>feature but I can see how it will be great for thin stuff. The high
>>frequency start function works well, it will throw an arc about 5/8
>>inch.
>> I have a few small gripes. It uses an air cooled torch and comes
>>with regular, not gas lens, cups and so on. The torch is a pretty good
>>one for an air cooled torch, a model PTA-17F. It has the flexible
>>head.
>> I bought gas lens stuff for the torch when I bought the welder. My
>>first welds were made on steel with the standard cup setup and the gas
>>flow I usually use with gas lenses. I noticed porosity right away.
>>Changing to a gas lens and the porosity went away and the weld
>>appearance improved greatly.
Were you using less or more gas with the standard cup?
>> The post flow is about 5 seconds and cannot be adjusted. This must
>>be to cool the torch.
>> The pedal doesn't have the same feel as the old heavy one for the
>>Miller welder so I am not sure when I have stepped on it enough to
>>start the welder. This wouldn't be a problem except there is a slight
>>delay between stepping on the gas and the arc initiation. A couple
>>times I didn't think I pressed far enough and the arc started really
>>hot.
>> After welding stops if the pedal is pressed right away there is
>>that damned delay. Another small gripe but I will get used to it.
>> I am going to make up a water cooling adapter for when the welder
>>is used in the shop as well as adding a post flow time external to the
>>machine. I already have the right adjustable time delay relay so it
>>will be pretty easy (I think) to use the pedal switch to trigger the
>>time delay relay.
>>Eric
>]
>
>Thanks for the review!
Yes, interesting review.
>That 5 second post cool is very important on
>a air cooled torch. Remember you are not just cooling the torch, but
>the hose/electrode as well. And it can get prettttty warm at the
>higher ranges..so you have to pump some gas at it to try to get it
>cool.
Newb here. Aren't the delay, and the resultant flow of gas while the
weld cools, necessary to keep the weld from getting brittle? Even my
little $200 Harbor Freight TIG has that post-arc time delay before the
gas shuts off. Wish it had DC and high-freq start. <sigh>
Do machines with water cooled torches not have that delay?
<tilts head>
--
Good ideas alter the power balance in relationships, that is why
good ideas are always initially resisted. Good ideas come with a
heavy burden. Which is why so few people have them. So few people
can handle it.
-- Hugh Macleod
wrote:
>On Fri, 30 Sep 2016 09:50:33 -0700, et...@whidbey.com wrote:
>
>> So, after looking at tubular reviews I decided the TIG 200 was a
>>good buy.
>> Tried it out last night for the first time. Just on 120 volts. I
>>was able to weld .125 thick 6061 using 3/32 filler rod with no
>>problems. I fidled with the AC balance and the default 75% setting
>>works great. I did try the 90% setting and even though it welded well
>>the weld appearance was not so good, not shiny. Played with the
>>frequency setting and it was really interesting to watch the arc width
>>change. I didn't weld much with the DC but did try out the pulse
>>feature. It is obvious that I will need too learn how to use the pulse
>>feature but I can see how it will be great for thin stuff. The high
>>frequency start function works well, it will throw an arc about 5/8
>>inch.
>> I have a few small gripes. It uses an air cooled torch and comes
>>with regular, not gas lens, cups and so on. The torch is a pretty good
>>one for an air cooled torch, a model PTA-17F. It has the flexible
>>head.
>> I bought gas lens stuff for the torch when I bought the welder. My
>>first welds were made on steel with the standard cup setup and the gas
>>flow I usually use with gas lenses. I noticed porosity right away.
>>Changing to a gas lens and the porosity went away and the weld
>>appearance improved greatly.
>> The post flow is about 5 seconds and cannot be adjusted. This must
>>be to cool the torch.
>> The pedal doesn't have the same feel as the old heavy one for the
>>Miller welder so I am not sure when I have stepped on it enough to
>>start the welder. This wouldn't be a problem except there is a slight
>>delay between stepping on the gas and the arc initiation. A couple
>>times I didn't think I pressed far enough and the arc started really
>>hot.
>> After welding stops if the pedal is pressed right away there is
>>that damned delay. Another small gripe but I will get used to it.
>> I am going to make up a water cooling adapter for when the welder
>>is used in the shop as well as adding a post flow time external to the
>>machine. I already have the right adjustable time delay relay so it
>>will be pretty easy (I think) to use the pedal switch to trigger the
>>time delay relay.
>>Eric
>]
>
>Thanks for the review!
>That 5 second post cool is very important on
>a air cooled torch. Remember you are not just cooling the torch, but
>the hose/electrode as well. And it can get prettttty warm at the
>higher ranges..so you have to pump some gas at it to try to get it
>cool.
weld cools, necessary to keep the weld from getting brittle? Even my
little $200 Harbor Freight TIG has that post-arc time delay before the
gas shuts off. Wish it had DC and high-freq start. <sigh>
Do machines with water cooled torches not have that delay?
<tilts head>
--
Good ideas alter the power balance in relationships, that is why
good ideas are always initially resisted. Good ideas come with a
heavy burden. Which is why so few people have them. So few people
can handle it.
-- Hugh Macleod
Terry Coombs
Sep 30, 2016, 9:15:48 PM9/30/16
to
the arc some ionized (by the HF) gas to help start as well as shield . The
after is to prevent oxidation as the weld cools . I think the gas lens setup
gives better shielding with less gas than standard cups , at least it seems
that way for me . Also , Jody has some excellent videos on all those
controls and what they do .
The Everlast EX250 I got a couple of years ago has all those bells and
whistles , and his videos have been a really big help to me on how to use
them . It also came with both a new water cooled and a used air cooled
torch that they tossed in for free . I still haven't used the water cooled
one ... but I'm pretty sure the pre flow delay is set by the machine and not
the torch .
--
Snag
Tim Wescott
Sep 30, 2016, 9:42:46 PM9/30/16
to
it's that aluminum is never emissive enough in the visible wavelengths
for it to glow. If you watch aluminum casting, you'll see that the
crucible is glowing a dull red, even though the aluminum inside is
shiny. If the aluminum were "black" (meaning, if it were emissive), it'd
be glowing that same dull red.
--
Tim Wescott
Control systems, embedded software and circuit design
I'm looking for work! See my website if you're interested
http://www.wescottdesign.com
DoN. Nichols
Sep 30, 2016, 11:37:27 PM9/30/16
to
On 2016-10-01, Larry Jaques <lja...@invalid.diversifycomm.com> wrote:
> On Fri, 30 Sep 2016 17:11:58 -0700, Gunner Asch <gunne...@gmail.com>
> wrote:
[ ... ]
> On Fri, 30 Sep 2016 17:11:58 -0700, Gunner Asch <gunne...@gmail.com>
> wrote:
>>Thanks for the review!
>
> Yes, interesting review.
>
>
>>That 5 second post cool is very important on
>>a air cooled torch. Remember you are not just cooling the torch, but
>>the hose/electrode as well. And it can get prettttty warm at the
>>higher ranges..so you have to pump some gas at it to try to get it
>>cool.
>
> Newb here. Aren't the delay, and the resultant flow of gas while the
> weld cools, necessary to keep the weld from getting brittle? Even my
> little $200 Harbor Freight TIG has that post-arc time delay before the
> gas shuts off. Wish it had DC and high-freq start. <sigh>
have DC. What it does not have is polarity reversal and pulsing to
allow it to work well with aluminum.
Enjoy,
DoN.
--
Remove oil spill source from e-mail
Email: <BPdnic...@d-and-d.com> | (KV4PH) Voice (all times): (703) 938-4564
(too) near Washington D.C. | http://www.d-and-d.com/dnichols/DoN.html
--- Black Holes are where God is dividing by zero ---
Larry Jaques
Oct 1, 2016, 12:11:14 AM10/1/16
to
On 1 Oct 2016 03:36:28 GMT, "DoN. Nichols" <BPdnic...@d-and-d.com>
wrote:
>On 2016-10-01, Larry Jaques <lja...@invalid.diversifycomm.com> wrote:
>> On Fri, 30 Sep 2016 17:11:58 -0700, Gunner Asch <gunne...@gmail.com>
>> wrote:
>
> [ ... ]
>
>>>Thanks for the review!
>>
>> Yes, interesting review.
>>
>>
>>>That 5 second post cool is very important on
>>>a air cooled torch. Remember you are not just cooling the torch, but
>>>the hose/electrode as well. And it can get prettttty warm at the
>>>higher ranges..so you have to pump some gas at it to try to get it
>>>cool.
>>
>> Newb here. Aren't the delay, and the resultant flow of gas while the
>> weld cools, necessary to keep the weld from getting brittle? Even my
>> little $200 Harbor Freight TIG has that post-arc time delay before the
>> gas shuts off. Wish it had DC and high-freq start. <sigh>
>
> Actually -- if your Harbor Freight TIG is like mine it *does*
>have DC. What it does not have is polarity reversal and pulsing to
>allow it to work well with aluminum.
Yup.
wrote:
>On 2016-10-01, Larry Jaques <lja...@invalid.diversifycomm.com> wrote:
>> On Fri, 30 Sep 2016 17:11:58 -0700, Gunner Asch <gunne...@gmail.com>
>> wrote:
>
> [ ... ]
>
>>>Thanks for the review!
>>
>> Yes, interesting review.
>>
>>
>>>That 5 second post cool is very important on
>>>a air cooled torch. Remember you are not just cooling the torch, but
>>>the hose/electrode as well. And it can get prettttty warm at the
>>>higher ranges..so you have to pump some gas at it to try to get it
>>>cool.
>>
>> Newb here. Aren't the delay, and the resultant flow of gas while the
>> weld cools, necessary to keep the weld from getting brittle? Even my
>> little $200 Harbor Freight TIG has that post-arc time delay before the
>> gas shuts off. Wish it had DC and high-freq start. <sigh>
>
> Actually -- if your Harbor Freight TIG is like mine it *does*
>have DC. What it does not have is polarity reversal and pulsing to
>allow it to work well with aluminum.
Gunner Asch
Oct 1, 2016, 12:26:25 AM10/1/16
to
On Fri, 30 Sep 2016 20:42:39 -0500, Tim Wescott <t...@seemywebsite.com>
wrote:
>On Fri, 30 Sep 2016 13:57:04 -0500, Jon Elson wrote:
>
>> et...@whidbey.com wrote:
>>
>>> So, after looking at tubular reviews I decided the TIG 200 was a
>>> good buy.
>>> Tried it out last night for the first time. Just on 120 volts. I
>>> was able to weld .125 thick 6061 using 3/32 filler rod with no
>>> problems.
>>
>>
>> That's very impressive! It took me a while to get the feel of doing
>> Aluminum. First problem is nobody told me the work NEVER got hot enough
>> to glow. Once I realized that bit of info from steel welding would not
>> be available, things went a bit better. I have a square wave TIG 300,
>> which is a fantastic machine, but large and heavy.
>>
>> Gas lenses help reduce gas consumption, and Argon is getting pretty
>> pricey.
>>
>> Jon
>
>If I'm not mistaken, it's not that the work won't get hot enough to glow,
>it's that aluminum is never emissive enough in the visible wavelengths
>for it to glow. If you watch aluminum casting, you'll see that the
>crucible is glowing a dull red, even though the aluminum inside is
>shiny. If the aluminum were "black" (meaning, if it were emissive), it'd
>be glowing that same dull red.
https://www.tinmantech.com/products/safety-products/eye-protection/TM2000-high-accuracy-gas-welding-lens.php
wrote:
>On Fri, 30 Sep 2016 13:57:04 -0500, Jon Elson wrote:
>
>> et...@whidbey.com wrote:
>>
>>> So, after looking at tubular reviews I decided the TIG 200 was a
>>> good buy.
>>> Tried it out last night for the first time. Just on 120 volts. I
>>> was able to weld .125 thick 6061 using 3/32 filler rod with no
>>> problems.
>>
>>
>> That's very impressive! It took me a while to get the feel of doing
>> Aluminum. First problem is nobody told me the work NEVER got hot enough
>> to glow. Once I realized that bit of info from steel welding would not
>> be available, things went a bit better. I have a square wave TIG 300,
>> which is a fantastic machine, but large and heavy.
>>
>> Gas lenses help reduce gas consumption, and Argon is getting pretty
>> pricey.
>>
>> Jon
>
>If I'm not mistaken, it's not that the work won't get hot enough to glow,
>it's that aluminum is never emissive enough in the visible wavelengths
>for it to glow. If you watch aluminum casting, you'll see that the
>crucible is glowing a dull red, even though the aluminum inside is
>shiny. If the aluminum were "black" (meaning, if it were emissive), it'd
>be glowing that same dull red.
Gunner Asch
Oct 1, 2016, 12:30:25 AM10/1/16
to
the pedal and the arch shuts off..yet the gas continues to run for X
seconds.
>
>Do machines with water cooled torches not have that delay?
><tilts head>
Water cooled machines can set that time from 0-60 seconds (most of
>Do machines with water cooled torches not have that delay?
><tilts head>
them) and its used to cool off the electrode/torch after the weld.
With most water cooled torches and power ranges of the average hobby
shop...its mostly not needed. Pure Tungsten electrodes might benefit
from it..but any others...nah...Id not worry about them.
dca...@krl.org
Oct 1, 2016, 8:39:54 AM10/1/16
to
On Saturday, October 1, 2016 at 12:30:25 AM UTC-4, Gunner Asch wrote:
> "Post arc delay" has nothing to do with the weld. Lift your foot off
> the pedal and the arch shuts off..yet the gas continues to run for X
> seconds.
> >
> >Do machines with water cooled torches not have that delay?
> ><tilts head>
>
> Water cooled machines can set that time from 0-60 seconds (most of
> them) and its used to cool off the electrode/torch after the weld.
> With most water cooled torches and power ranges of the average hobby
> shop...its mostly not needed. Pure Tungsten electrodes might benefit
> from it..but any others...nah...Id not worry about them.
>
> Gunner
>
> ---
> This email has been checked for viruses by Avast antivirus software.
> https://www.avast.com/antivirus
I agree the post arc flow helps to cool the torch, but that is not the reason for it. If the gas stopped flowing the instant the arc stopped, the torch would not get hotter. There is no energy being used when the arc is off. The post flow is to keep the weld and the tungsten in inert gas while the weld and tungsten cool enough that they do not oxidise. If you want to see the effect on the weld, just whip the torch away from the weld the instant the arc extinguishes.
> "Post arc delay" has nothing to do with the weld. Lift your foot off
> the pedal and the arch shuts off..yet the gas continues to run for X
> seconds.
> >
> >Do machines with water cooled torches not have that delay?
> ><tilts head>
>
> Water cooled machines can set that time from 0-60 seconds (most of
> them) and its used to cool off the electrode/torch after the weld.
> With most water cooled torches and power ranges of the average hobby
> shop...its mostly not needed. Pure Tungsten electrodes might benefit
> from it..but any others...nah...Id not worry about them.
>
> Gunner
>
> ---
> This email has been checked for viruses by Avast antivirus software.
> https://www.avast.com/antivirus
Dan
et...@whidbey.com
Oct 1, 2016, 11:55:43 AM10/1/16
to
On Fri, 30 Sep 2016 20:15:43 -0500, "Terry Coombs" <snag...@msn.com>
wrote:
My old TIG welder is a Miller Gold Star. It has a post flow timer but
no pre flow timer. Typically I just mash the pedal when first starting
a weld in order to push all the air out of the torch gas line. The
post flow is set long enough to keep the tungsten from turning blue.
When I am welding a lot of passes I usuallyhave things set up so I can
stop one pass and start the next pass during the post flow time.
Whenever I need a longer post flow I just tap the pedal. The gas
lenses really save on gas use, about half actually. When I get the
water cooled torch adapter made I will also be installing a post flow
timer.
Eric
wrote:
no pre flow timer. Typically I just mash the pedal when first starting
a weld in order to push all the air out of the torch gas line. The
post flow is set long enough to keep the tungsten from turning blue.
When I am welding a lot of passes I usuallyhave things set up so I can
stop one pass and start the next pass during the post flow time.
Whenever I need a longer post flow I just tap the pedal. The gas
lenses really save on gas use, about half actually. When I get the
water cooled torch adapter made I will also be installing a post flow
timer.
Eric
et...@whidbey.com
Oct 1, 2016, 11:58:57 AM10/1/16
to
longer which is why I think the post flow is longer than I need for my
water cooled torch. As it is now it is longer than needed for weld
protection.
Eric
Jon Elson
Oct 1, 2016, 3:42:23 PM10/1/16
to
Tim Wescott wrote:
>
> If I'm not mistaken, it's not that the work won't get hot enough to glow,
> it's that aluminum is never emissive enough in the visible wavelengths
> for it to glow. If you watch aluminum casting, you'll see that the
> crucible is glowing a dull red, even though the aluminum inside is
> shiny. If the aluminum were "black" (meaning, if it were emissive), it'd
> be glowing that same dull red.
>
Hmmm! Very interesting! Well, aluminum has a high specific heat, so it
>
> If I'm not mistaken, it's not that the work won't get hot enough to glow,
> it's that aluminum is never emissive enough in the visible wavelengths
> for it to glow. If you watch aluminum casting, you'll see that the
> crucible is glowing a dull red, even though the aluminum inside is
> shiny. If the aluminum were "black" (meaning, if it were emissive), it'd
> be glowing that same dull red.
>
takes a lot of energy to raise the temp. So, it is possible that the
crucible gets hotter than the melt. I've watched some guys do aluminum
pours, and if you get the aluminum too hot, you get a lot of dross, so that
is to be avoided. Also, when welding, you want the work JUST hot enough to
fuse. Get it too hot, and it ends up on the floor. Due to the high thermal
conductivity of aluminum, the range between welding and melting the whole
piece is REALLY small. Much harder than with steel, for instance.
Jon
Jon Elson
Oct 1, 2016, 3:48:21 PM10/1/16
to
Larry Jaques wrote:
> Were you using less or more gas with the standard cup?
>
The standard cupo produces turbulent mixing with the surrounding air. The
> Were you using less or more gas with the standard cup?
>
gas lens produces minimum turbulence, so that air is not introduced near the
electrode. If you hold the torch so a stong light makes a shadow on a wall,
you can easily see the flow of argon, and see the difference in how smoothly
a gas lens flows out of the cup.
> Do machines with water cooled torches not have that delay?
> <tilts head>
settings. The gas valve is in the WELDER, not the cooler, so it is a welder
function. So, it wouldn't care about the torch cooling. I have only used a
water-cooled torch. I can't imagine air-cooled can be used at high current,
the electrode gets WAYY hotter than the work.
Jon
et...@whidbey.com
Oct 1, 2016, 4:21:27 PM10/1/16
to
On Sat, 01 Oct 2016 14:48:14 -0500, Jon Elson <el...@pico-systems.com>
wrote:
Air cooled (actually GAS cooled) torches are available for use up to
300 amps. I used to have one. My new welder came with a gas cooled
torch good for 200 amps. I exceeded the duty cycle for a 200 amp gas
cooled that I used to own. I had been welding aluminum at the time. On
several occasions I had done this, gotten the torch so hot I could
only hold on to the very end of the torch handle. The last straw was
when, as I was welding, the weld quality started to suffer and I
noticed a strange burning smell. Flipping up the hood I saw that the
torch was smoking. Smoke was pouring out of the cup as well as off of
the outside. That's when I switched to water cooling.
Eric
wrote:
300 amps. I used to have one. My new welder came with a gas cooled
torch good for 200 amps. I exceeded the duty cycle for a 200 amp gas
cooled that I used to own. I had been welding aluminum at the time. On
several occasions I had done this, gotten the torch so hot I could
only hold on to the very end of the torch handle. The last straw was
when, as I was welding, the weld quality started to suffer and I
noticed a strange burning smell. Flipping up the hood I saw that the
torch was smoking. Smoke was pouring out of the cup as well as off of
the outside. That's when I switched to water cooling.
Eric
David Billington
Oct 1, 2016, 4:50:28 PM10/1/16
to
is far more flexible in use due to the nature of the lead construction.
I have once seen a water cooled torch where the water cooled leads
failed, the torch was fine and the leads replaced, but the kiddy using
it found himself in a smoke cloud when the leads overheated and melted
letting out the smoke and water. The water cooler was fine but for some
reason the leads failed, maybe the welding unit, an old Miller
Synchrowave IIRC, was rated for more than the torch, I don't know, but
the leads were replaced and the welding station put back into service
after a day or 2 when new leads arrived.
Gunner Asch
Oct 1, 2016, 7:39:08 PM10/1/16
to
off.
Its not so much to keep the torch from getting any hotter..its to keep
the torch from not being cooled enough for a few seconds after the
power is off.
Neon John
Oct 1, 2016, 9:43:44 PM10/1/16
to
On Sat, 01 Oct 2016 14:42:16 -0500, Jon Elson <el...@pico-systems.com>
wrote:
>Hmmm! Very interesting! Well, aluminum has a high specific heat, so it
>takes a lot of energy to raise the temp. So, it is possible that the
>crucible gets hotter than the melt.
Aluminum is also one of the highest thermally conductive materials so
the metal stays the same temperature as the crucible. Tim nailed the
cause - the extremely low emissivity of clean aluminum.
> I've watched some guys do aluminum
>pours, and if you get the aluminum too hot, you get a lot of dross, so that
>is to be avoided.
My company (tnduction.com) is developing a line of tabletop induction
aluminum melters for sand casting so I've had a great deal of exposure
to molten aluminum alloys.
With clean feedstock and either inerting gas over the top of the
crucible or a covering flux, the metal stays bright and shiny
indefinitely. Of course the furnace has a PID controller to maintain
the desired melt temperature.
John
John DeArmond
http://www.neon-john.com
http://www.tnduction.com
Tellico Plains, Occupied TN
See website for email address
wrote:
>Hmmm! Very interesting! Well, aluminum has a high specific heat, so it
>takes a lot of energy to raise the temp. So, it is possible that the
>crucible gets hotter than the melt.
the metal stays the same temperature as the crucible. Tim nailed the
cause - the extremely low emissivity of clean aluminum.
> I've watched some guys do aluminum
>pours, and if you get the aluminum too hot, you get a lot of dross, so that
>is to be avoided.
aluminum melters for sand casting so I've had a great deal of exposure
to molten aluminum alloys.
With clean feedstock and either inerting gas over the top of the
crucible or a covering flux, the metal stays bright and shiny
indefinitely. Of course the furnace has a PID controller to maintain
the desired melt temperature.
John
John DeArmond
http://www.neon-john.com
http://www.tnduction.com
Tellico Plains, Occupied TN
See website for email address
Don Foreman
Oct 12, 2016, 9:20:50 PM10/12/16
to
On Fri, 30 Sep 2016 21:26:17 -0700, Gunner Asch <gunne...@gmail.com>
The Tinman's lens is for cutting the yellow sodium flare from flux
when gas-welding aluminum. That flare completely obscures vision of
the weld zone. The TM2000 lens completely blocks that yellow flare,
greatly facilitating gas welding of aluminum.
Years ago weldors used cobalt blue lenses to block that sodium flare.
They didn't work as well at blocking the sodium flare. I can attest
to that; they were better than nothing, but not nearly as effective as
the green TM2000 lenses. More importantly, they did not adequately
protect the weldor from UV and IR rays. They are no longer used or
available.
when gas-welding aluminum. That flare completely obscures vision of
the weld zone. The TM2000 lens completely blocks that yellow flare,
greatly facilitating gas welding of aluminum.
Years ago weldors used cobalt blue lenses to block that sodium flare.
They didn't work as well at blocking the sodium flare. I can attest
to that; they were better than nothing, but not nearly as effective as
the green TM2000 lenses. More importantly, they did not adequately
protect the weldor from UV and IR rays. They are no longer used or
available.
David Billington
Oct 13, 2016, 11:16:41 AM10/13/16
to
actually experienced it when gas welding aluminium and using a standard
gas welding filter as used for OA welding of steel. Maybe the flux
formulation i have used in the UK differs from that in the US and it
doesn't produce the flare or maybe it's a problem when gas welding
aluminum but not aluminium as we have in the UK ;).
Larry Jaques
Oct 13, 2016, 4:35:10 PM10/13/16
to
On Thu, 13 Oct 2016 16:16:37 +0100, David Billington <d...@invalid.com>
wrote:
>On 13/10/16 02:20, Don Foreman wrote:
>> The Tinman's lens is for cutting the yellow sodium flare from flux
>> when gas-welding aluminum. That flare completely obscures vision of
>> the weld zone. The TM2000 lens completely blocks that yellow flare,
>> greatly facilitating gas welding of aluminum.
>
>I've seen this sodium flare issue mentioned many times but have never
>actually experienced it when gas welding aluminium and using a standard
>gas welding filter as used for OA welding of steel. Maybe the flux
>formulation i have used in the UK differs from that in the US and it
>doesn't produce the flare or maybe it's a problem when gas welding
>aluminum but not aluminium as we have in the UK ;).
Right you are, David. Proper spelling and pronunciation _seriously_
affect the intensity of the sodium flare in our two countries.
I've only seen aluminum tigged once, and I wasn't knowledgeable enough
to look for said flare. "I'd only seen Heliarc before that." he
flatly stated, in a high-pitched voice. ;)
>> Years ago weldors used cobalt blue lenses to block that sodium flare.
>> They didn't work as well at blocking the sodium flare. I can attest
>> to that; they were better than nothing, but not nearly as effective as
>> the green TM2000 lenses. More importantly, they did not adequately
>> protect the weldor from UV and IR rays. They are no longer used or
>> available.
Interesting! Thanks for that, Don.
--
If government were a product,
selling it would be illegal.
--P.J. O'Rourke
wrote:
>On 13/10/16 02:20, Don Foreman wrote:
>> The Tinman's lens is for cutting the yellow sodium flare from flux
>> when gas-welding aluminum. That flare completely obscures vision of
>> the weld zone. The TM2000 lens completely blocks that yellow flare,
>> greatly facilitating gas welding of aluminum.
>
>I've seen this sodium flare issue mentioned many times but have never
>actually experienced it when gas welding aluminium and using a standard
>gas welding filter as used for OA welding of steel. Maybe the flux
>formulation i have used in the UK differs from that in the US and it
>doesn't produce the flare or maybe it's a problem when gas welding
>aluminum but not aluminium as we have in the UK ;).
affect the intensity of the sodium flare in our two countries.
I've only seen aluminum tigged once, and I wasn't knowledgeable enough
to look for said flare. "I'd only seen Heliarc before that." he
flatly stated, in a high-pitched voice. ;)
>> Years ago weldors used cobalt blue lenses to block that sodium flare.
>> They didn't work as well at blocking the sodium flare. I can attest
>> to that; they were better than nothing, but not nearly as effective as
>> the green TM2000 lenses. More importantly, they did not adequately
>> protect the weldor from UV and IR rays. They are no longer used or
>> available.
--
If government were a product,
selling it would be illegal.
--P.J. O'Rourke
David Billington
Oct 13, 2016, 5:08:18 PM10/13/16
to
On 13/10/16 21:35, Larry Jaques wrote:
> On Thu, 13 Oct 2016 16:16:37 +0100, David Billington <d...@invalid.com>
> wrote:
>
>> On 13/10/16 02:20, Don Foreman wrote:
>>> The Tinman's lens is for cutting the yellow sodium flare from flux
>>> when gas-welding aluminum. That flare completely obscures vision of
>>> the weld zone. The TM2000 lens completely blocks that yellow flare,
>>> greatly facilitating gas welding of aluminum.
>> I've seen this sodium flare issue mentioned many times but have never
>> actually experienced it when gas welding aluminium and using a standard
>> gas welding filter as used for OA welding of steel. Maybe the flux
>> formulation i have used in the UK differs from that in the US and it
>> doesn't produce the flare or maybe it's a problem when gas welding
>> aluminum but not aluminium as we have in the UK ;).
> Right you are, David. Proper spelling and pronunciation _seriously_
> affect the intensity of the sodium flare in our two countries.
>
> I've only seen aluminum tigged once, and I wasn't knowledgeable enough
> to look for said flare. "I'd only seen Heliarc before that." he
> flatly stated, in a high-pitched voice. ;)
We were not talking about TIG welding but gas welding aluminium where
> On Thu, 13 Oct 2016 16:16:37 +0100, David Billington <d...@invalid.com>
> wrote:
>
>> On 13/10/16 02:20, Don Foreman wrote:
>>> The Tinman's lens is for cutting the yellow sodium flare from flux
>>> when gas-welding aluminum. That flare completely obscures vision of
>>> the weld zone. The TM2000 lens completely blocks that yellow flare,
>>> greatly facilitating gas welding of aluminum.
>> I've seen this sodium flare issue mentioned many times but have never
>> actually experienced it when gas welding aluminium and using a standard
>> gas welding filter as used for OA welding of steel. Maybe the flux
>> formulation i have used in the UK differs from that in the US and it
>> doesn't produce the flare or maybe it's a problem when gas welding
>> aluminum but not aluminium as we have in the UK ;).
> Right you are, David. Proper spelling and pronunciation _seriously_
> affect the intensity of the sodium flare in our two countries.
>
> I've only seen aluminum tigged once, and I wasn't knowledgeable enough
> to look for said flare. "I'd only seen Heliarc before that." he
> flatly stated, in a high-pitched voice. ;)
apparently some experience sodium flare from the chemicals in the flux
used during the welding process to deal with the oxide on the aluminium
surface. TIG doesn't require a flux and so the flare isn't an issue
although the filter is darker and possibly stronger in UV and IR
filtering due to the electric arc being used to perform the weld.
Larry Jaques
Oct 13, 2016, 11:52:10 PM10/13/16
to
On Thu, 13 Oct 2016 22:08:15 +0100, David Billington <d...@invalid.com>
>TIG doesn't require a flux and so the flare isn't an issue
>although the filter is darker and possibly stronger in UV and IR
>filtering due to the electric arc being used to perform the weld.
Let's hope they're darker, for their eyes' sake.
wrote:
>On 13/10/16 21:35, Larry Jaques wrote:
>> On Thu, 13 Oct 2016 16:16:37 +0100, David Billington <d...@invalid.com>
>> wrote:
>>
>>> On 13/10/16 02:20, Don Foreman wrote:
>>>> The Tinman's lens is for cutting the yellow sodium flare from flux
>>>> when gas-welding aluminum. That flare completely obscures vision of
>>>> the weld zone. The TM2000 lens completely blocks that yellow flare,
>>>> greatly facilitating gas welding of aluminum.
>>> I've seen this sodium flare issue mentioned many times but have never
>>> actually experienced it when gas welding aluminium and using a standard
>>> gas welding filter as used for OA welding of steel. Maybe the flux
>>> formulation i have used in the UK differs from that in the US and it
>>> doesn't produce the flare or maybe it's a problem when gas welding
>>> aluminum but not aluminium as we have in the UK ;).
>> Right you are, David. Proper spelling and pronunciation _seriously_
>> affect the intensity of the sodium flare in our two countries.
>>
>> I've only seen aluminum tigged once, and I wasn't knowledgeable enough
>> to look for said flare. "I'd only seen Heliarc before that." he
>> flatly stated, in a high-pitched voice. ;)
>
>We were not talking about TIG welding but gas welding aluminium where
>apparently some experience sodium flare from the chemicals in the flux
>used during the welding process to deal with the oxide on the aluminium
>surface.
<sigh> You're right. I wasn't paying enough attention.
>On 13/10/16 21:35, Larry Jaques wrote:
>> On Thu, 13 Oct 2016 16:16:37 +0100, David Billington <d...@invalid.com>
>> wrote:
>>
>>> On 13/10/16 02:20, Don Foreman wrote:
>>>> The Tinman's lens is for cutting the yellow sodium flare from flux
>>>> when gas-welding aluminum. That flare completely obscures vision of
>>>> the weld zone. The TM2000 lens completely blocks that yellow flare,
>>>> greatly facilitating gas welding of aluminum.
>>> I've seen this sodium flare issue mentioned many times but have never
>>> actually experienced it when gas welding aluminium and using a standard
>>> gas welding filter as used for OA welding of steel. Maybe the flux
>>> formulation i have used in the UK differs from that in the US and it
>>> doesn't produce the flare or maybe it's a problem when gas welding
>>> aluminum but not aluminium as we have in the UK ;).
>> Right you are, David. Proper spelling and pronunciation _seriously_
>> affect the intensity of the sodium flare in our two countries.
>>
>> I've only seen aluminum tigged once, and I wasn't knowledgeable enough
>> to look for said flare. "I'd only seen Heliarc before that." he
>> flatly stated, in a high-pitched voice. ;)
>
>We were not talking about TIG welding but gas welding aluminium where
>apparently some experience sodium flare from the chemicals in the flux
>used during the welding process to deal with the oxide on the aluminium
>surface.
>TIG doesn't require a flux and so the flare isn't an issue
>although the filter is darker and possibly stronger in UV and IR
>filtering due to the electric arc being used to perform the weld.
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