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Re: Welding Questions: help me be better. [Re: Stanton] #928056
02/14/11 10:42 AM
02/14/11 10:42 AM
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JohnRR Offline
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Quote:

Quote:

Welding inverted , overhead , you need to use a FLUX core wire , no gas




This is BS ! Do you think all welders or welding shops switch units to do overhead welding ?






Lighten up Francis , with that Hobart welder he has he should to switch to a FLUX CORE wire for overhead stuff , not that the extra current is going to help when welding thinner metals ...


Mainstream Media is the new Pravda
Re: Welding Questions: help me be better. [Re: Stanton] #928057
02/14/11 10:43 AM
02/14/11 10:43 AM
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Posts: 4,481
Mesa, AZ
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Pat_Whalen Offline
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Quote:

Quote:

purge the gas line




A very good point that many occasional welders forget. Turn on the gas at the regulator, turn on your welder then hit the trigger for a couple seconds. Snip the excess wire off and you're good to go.

Although a lot of people don't do it, try to get in the habit of snipping off the little ball on the end of the wire before starting each weld. This is actually contaminated metal that will contaminate your weld. Yes, its a nuisance.




If you're not interested in wasting wire (not that it's much to purge the lines), pop open the side of the welder and lift up the drive roller, squeeze the trigger on the gun for a couple seconds and replaced the drive roller. But as mentioned, it is important to have gas at the gun the second you start welding.

Re: Welding Questions: help me be better. [Re: kilroy] #928058
02/14/11 10:50 AM
02/14/11 10:50 AM
Joined: Jan 2003
Posts: 75,326
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JohnRR Offline
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Quote:

Quote:

Welding inverted , overhead , you need to use a FLUX core wire , no gas , that's why you are having problems with that weld , that type Hobart is a marginal machine at best, we have one at work , it bites.




so no welding with gun below weld on gas?

Just curious what would be a good one at $450-500 range on 120v? My old man has a 220v bigger brother to mine and you can tell it MUCH hotter but I like the portableness and the fact I only have 120v in garage.




You want to find a machine that has a VARIABLE adjustment for BOTH the wire speed and the Voltage/Current. I have a 120v Lincoln that I got when the 120v machines first came on the market, it's head and shoulders above that Hobart. It has variable adjustments on both and it comes in handy especially when you are dealing with metal that is a little thin after you have ground off the rust. I bought it in the early 90's and it was over $500 then , it wasn't too long after that the POS big box store units came out with the 4 position volt/ current switch so they would meet the cheapy price point.

Re: Welding Questions: help me be better. [Re: JohnRR] #928059
02/14/11 01:11 PM
02/14/11 01:11 PM
Joined: Mar 2005
Posts: 862
Iowa State fan
kilroy Offline OP
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Quote:

...I bought it in the early 90's and it was over $500 then , it wasn't too long after that the POS big box store units came out with the 4 position volt/ current switch so they would meet the cheapy price point.




$500 in the early '90 is like a grand now

Elwell me and my pos will continue to screw up till I get it right.

Keep it coming guys.


1973 Charger, former SE, former auto

I'm not trying to be difficult, it comes naturally....
Re: Welding Questions: help me be better. [Re: kilroy] #928060
02/14/11 02:41 PM
02/14/11 02:41 PM
Joined: Oct 2005
Posts: 9,098
Ontario, Canada
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Stanton Offline
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Quote:

Lighten up Francis , with that Hobart welder he has he should to switch to a FLUX CORE wire for overhead stuff , not that the extra current is going to help when welding thinner metals ...




John, John, John, the flux in the wire does nothing other than provide a sheilding gas when it burns off under the heat. In other words it does EXACTLY what the sheilding gas does.

The ONLY advantages to a flux core wire in a small gauge wire is that:
a) it saves the hobbyist from having to rent a bottle and buy a flowmeter.
b) it will provide better sheilding if welding outdoors.

Otherwise there is no advantage to fluxcore.

Re: Welding Questions: help me be better. [Re: Stanton] #928061
02/14/11 03:55 PM
02/14/11 03:55 PM
Joined: Feb 2008
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2011 RAM3500

1967 Fastback Barracuda with some go fast goodies.
Re: Welding Questions: help me be better. [Re: Boosted] #928062
02/14/11 04:29 PM
02/14/11 04:29 PM
Joined: Apr 2010
Posts: 1,216
Under My Car
Mopar_Country Offline
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And don't forget when your done welding to add the famous "Kilroy was here".

I couldn't resist.

Re: Welding Questions: help me be better. [Re: Boosted] #928063
02/14/11 06:08 PM
02/14/11 06:08 PM
Joined: Jan 2003
Posts: 75,326
A gulag near you.
JohnRR Offline
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Quote:







Re: Welding Questions: help me be better. [Re: Mopar_Country] #928064
02/14/11 06:41 PM
02/14/11 06:41 PM
Joined: Mar 2005
Posts: 862
Iowa State fan
kilroy Offline OP
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Quote:

And don't forget when your done welding to add the famous "Kilroy was here".

I couldn't resist.






1973 Charger, former SE, former auto

I'm not trying to be difficult, it comes naturally....
Re: Welding Questions: help me be better. [Re: Pat_Whalen] #928065
02/14/11 08:04 PM
02/14/11 08:04 PM
Joined: Apr 2005
Posts: 12,271
Overpriced Housing Central
RobX4406 Offline
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Quote:

Quote:

Quote:

purge the gas line




A very good point that many occasional welders forget. Turn on the gas at the regulator, turn on your welder then hit the trigger for a couple seconds. Snip the excess wire off and you're good to go.

Although a lot of people don't do it, try to get in the habit of snipping off the little ball on the end of the wire before starting each weld. This is actually contaminated metal that will contaminate your weld. Yes, its a nuisance.




If you're not interested in wasting wire (not that it's much to purge the lines), pop open the side of the welder and lift up the drive roller, squeeze the trigger on the gun for a couple seconds and replaced the drive roller. But as mentioned, it is important to have gas at the gun the second you start welding.




Or turn the wire speed setting to Zero... if you have that capability.

Re: Welding Questions: help me be better. [Re: RobX4406] #928066
02/14/11 08:18 PM
02/14/11 08:18 PM
Joined: Feb 2003
Posts: 21,318
Manitoba, Canada
DaytonaTurbo Offline
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Quote:

Or turn the wire speed setting to Zero... if you have that capability.




I just hit the off switch on the welder. On mine gas still flows when I hit the trigger.

Re: Welding Questions: help me be better. [Re: DaytonaTurbo] #928067
02/14/11 10:13 PM
02/14/11 10:13 PM
Joined: Jul 2003
Posts: 6,167
Maryland
GO_Fish Offline
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Well I guess I know why I don't weld! I have actually been thinking about taking a class, but it looks like welding may be more stressful than I thought!


Scott B. "I'm a self-made man... I started with nothing, and I still have most of it!" 68 360 rusty B'cuda 'vert (GO Fish)13.59@ 98.72 mph 69 340 GTS stock 14.18@ 95.60 mph 01 5.9L Ram 1500 Quad Cab 4x4 01 3.5L 300M 16.23@ 86.97 mph
Re: Welding Questions: help me be better. [Re: GO_Fish] #928068
02/14/11 10:19 PM
02/14/11 10:19 PM
Joined: Mar 2005
Posts: 862
Iowa State fan
kilroy Offline OP
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Quote:

Well I guess I know why I don't weld! I have actually been thinking about taking a class, but it looks like welding may be more stressful than I thought!




Not as stressful as staring at rust or a broken part.

but when you take rust out be prepared to take even more.


1973 Charger, former SE, former auto

I'm not trying to be difficult, it comes naturally....
Re: Welding Questions: help me be better. [Re: kilroy] #928069
02/14/11 10:36 PM
02/14/11 10:36 PM
Joined: May 2005
Posts: 639
Wilmington, NC
donbarnes Offline
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Another mistake I've seen over the years is people trying to use a big dark helmet for a wire welder. When using a small welder on sheet metal I like a light lens about like you'd use for for a cutting torch- helps a lot being able to see what you are doing...And no flux-core ever...

Re: Welding Questions: help me be better. [Re: donbarnes] #928070
02/14/11 11:15 PM
02/14/11 11:15 PM
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NM
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Didn't see it posted .....sorry if someone already has.

Don't kink or otherwise stress your line. Make sure to keep your cable as straight as possible. I have a Hobart and sometimes I have to adjust or pull my welder back to give the cable some room to straighten. Too many curves can slow your feed

Re: Welding Questions: help me be better. [Re: donbarnes] #928071
02/15/11 01:21 AM
02/15/11 01:21 AM
Joined: Aug 2005
Posts: 6,054
Salem
Grizzly Offline
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Salem
Quote:

Another mistake I've seen over the years is people trying to use a big dark helmet for a wire welder. When using a small welder on sheet metal I like a light lens about like you'd use for for a cutting torch- helps a lot being able to see what you are doing...And no flux-core ever...




Mistake? If you can't see a mig weld with an #11, #10, or a number 9 lens then YOUR eyesight is already done. Don't advise anyone else to use an oxy-acetylene lens for arc welding unless you want them to be blind too.


Mo' Farts

Moderated by "tbagger".
Re: Welding Questions: help me be better. [Re: Grizzly] #928072
02/15/11 10:29 AM
02/15/11 10:29 AM
Joined: May 2005
Posts: 639
Wilmington, NC
donbarnes Offline
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Not an actual oxy lens, just toward the lighter end of the welding lenses...don't know the lens numbers..

Re: Welding Questions: help me be better. [Re: kilroy] #928073
02/15/11 10:31 AM
02/15/11 10:31 AM
Joined: Nov 2003
Posts: 5,048
Atlanta Indiana
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Dave Watt Offline
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Quote:

Ok been an amateur welder for about 3years now. Im using a hobart 140 (120v) with 75/25 gas set at 20cfh and .023 wire.


The main question is: once in while when I start my weld the wire starts to melt back on itself and not place itself on the metal. It leaves glowing little ball of material on the wire and you have to start again. This is VERY annoying and often causes a bad next weld. What is causing this? Unclean metal? Ground to far from weld? (maybe an amateur )

Another thing would it be advantageous to switch to 0.030 wire for panel work?

Enlighten me so I can be a good amateur!



Kilroy, my Lincoln welder likes a little more gas when doing bodywork type welding, usually set it at 25cfh, 20 just doesn't seem to do as well.
.023" wire is great for bodywork.
The intermittant problem you have could be wire speed being a little slow, or if your cable is not stretched out properly, the welding wire will bind inside causing a molten ball of wire at the tip.

Re: Welding Questions: help me be better. [Re: donbarnes] #928074
02/15/11 10:35 AM
02/15/11 10:35 AM
Joined: Oct 2005
Posts: 9,098
Ontario, Canada
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Stanton Offline
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You don't want to go below a #9 - which coincidentally is the lowest setting on adjustable auto-darkening helmets.

Something guys don't realize something which I recently discovered which is that visibilty is greatly improved with clean or new lense covers. All the smoke and spatter drastically reduces your visibilty.

Re: Welding Questions: help me be better. [Re: Stanton] #928075
02/15/11 11:07 PM
02/15/11 11:07 PM
Joined: Dec 2006
Posts: 82
Elwood Ne.
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Quote:

Quote:

Lighten up Francis , with that Hobart welder he has he should to switch to a FLUX CORE wire for overhead stuff , not that the extra current is going to help when welding thinner metals ...




John, John, John, the flux in the wire does nothing other than provide a sheilding gas when it burns off under the heat. In other words it does EXACTLY what the sheilding gas does.

The ONLY advantages to a flux core wire in a small gauge wire is that:
a) it saves the hobbyist from having to rent a bottle and buy a flowmeter.
b) it will provide better sheilding if welding outdoors.

Otherwise there is no advantage to fluxcore.







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