Welding fun

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Jonah D'Avella
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Welding fun

Post by Jonah D'Avella » Sat Nov 13, 2021 2:29 pm

I just got a tig welder the other day and am working on how to use it, any tips?

Jonah D'Avella
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Re: Welding fun

Post by Scott_Conger » Sat Nov 13, 2021 3:00 pm

Don't wear shorts

:D
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Re: Welding fun

Post by Craig Leach » Sat Nov 13, 2021 3:23 pm

Hi Jonah,
I don't TIG as much as I use to but here goes. If you gas weld (oxy/acetylene) when you pull the torch away you loose heat with TIG to a point you will gain heat pulling the tongsten away. Cleanlyness is next to godlyness this meens the metal, tungtsen, cup. Grind the tungsten toward the point not around the point. Don't pull the filler rod out of the gas shield. Get a good pair of gloves ( for TIG welding) Get comfortable. And practice practice practice practice. I havn't worn shorts since I was 4 years old unless I was simming?
Craig.


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Re: Welding fun

Post by otrcman » Sat Nov 13, 2021 6:55 pm

Best thing I ever did after getting my TIG machine was to pay a professional welder to come over in the evening and help me get set up and going. The beauty of having a pro right there with you is that he will notice dozens of things that will never occur to you to ask about if you are on the phone or on the internet. Things like:

Wear long sleeve colored shirt to protect from sunburn and sparks. No tee shirts, no matter how hot it is in your shop. Don't ask how I know.
Wear long pants
How to set up machine settings (AC vs DC, current level, polarity, gas flow, etc)
What should the torch sound like when you are working
Hand rests while welding
Hose protection
Weld bead appearance (both good AND bad)
Torch positioning
Rod extension distance out of cup
Rod distance to work piece
Tungsten grinding

I think I had him over two different times. The first time for about two hours; the second time for about an hour. Then I talked to him on the phone a few more times after that.

The other advantage to having an experienced welder on hand is that he can demonstrate good and bad technique.

One last thing: I practiced for about 30 hours overall before doing my first "for keeps" weld. That after having done oxy-acetylene gas welding for about 20 years.

A lot of people have asked me if they could "give it a try" with my machine. I usually agree, but find that even with me having set everything up for them, they can't just sit down and start welding. I've only had two people who could do it right away.

My brother brought in a car that he was customizing and needed about 100 holes filled where he had removed body trim. I did a couple of holes and he watched through his own helmet. After two holes, he ask if he could give it a try. His work was just as good as mine and he finished the whole job himself. Note: he is a jeweler by trade and spends all day soldering gold items.

The second guy who wanted to give it a try had been doing gas welding for a number of years and also picked up the TIG right away. I can't explain how or why he was so successful; he was just a really talented guy, I guess.

Most people, including me, just burn holes when they first try TIG. Don't let that discourage you. After doing TIG for a while I almost never use my gas torch. I'll bet my gas bottles haven't been exchanged for 20 years now.


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Jonah D'Avella
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Re: Welding fun

Post by Jonah D'Avella » Sat Nov 13, 2021 8:47 pm

What do I use the different polarity for?
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Re: Welding fun

Post by Scott_Conger » Sat Nov 13, 2021 9:39 pm

Jonah

this will give you more info than someone is likely to give you here on the forum...lots of stuff for you to learn...and be sure to take everyone's advice regarding protective clothing...

https://www.uti.edu/blog/welding/welding-polarity
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Re: Welding fun

Post by Art M » Wed Nov 24, 2021 11:05 am

With tig welding, use reverse polarity when you want to consume the expensive electrode.

Art Mirtes

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Re: Welding fun

Post by Henry K. Lee » Wed Nov 24, 2021 1:36 pm

Buy some books, watch YouTube videos, but most of all, take a class! Welding safety is number one!

Learn all basics first, ie, soldering, brazing, oxy /ace steel welding, arc welding, mig welding, then TIG. TIG is an art with too many variables.

Hank

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Re: Welding fun

Post by Henry K. Lee » Wed Nov 24, 2021 5:35 pm

IMG_6473.jpeg
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Once you master your skills.., you quit wasting time, money and materials. It does become art!

Hank

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Re: Welding fun

Post by Quickm007 » Wed Nov 24, 2021 9:42 pm

Nice Rose Hank!
Super Mario Bross ;)

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Re: Welding fun

Post by Scott_Conger » Wed Nov 24, 2021 10:28 pm

I do not want to hear anything more about Pixie Dust!

I can make carb parts, but cannot make a steel rose spring forth! Your fertilizer must have bunch of iron in it...
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Re: Welding fun

Post by Henry K. Lee » Thu Nov 25, 2021 6:09 am

Thanks Folks!

We have to show young men with spunk why progression in learning is important. Master skills.., then there are no challenges, just not boring days.

Scott, Pixie Dust and Hen's Teeth are the secret to success!


THE BEFORE AND AFTER!
IMAGE 11-20-19 AT 7.33 PM.jpeg
IMG_0970.jpeg
IMG_5649.jpeg

Don't knock until you try it Brother!!!!!

Hank
Last edited by Henry K. Lee on Thu Nov 25, 2021 6:34 am, edited 1 time in total.

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Re: Welding fun

Post by Henry K. Lee » Thu Nov 25, 2021 6:25 am

IMG_1253.jpeg
IMG_5487.jpeg

THE POWER OF THE TWO SPECIAL INGREDIENTS!!!!!

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Re: Welding fun

Post by Quickm007 » Fri Nov 26, 2021 10:27 am

Stunning! That's amazing car! Well done Hank!
Super Mario Bross ;)

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Re: Welding fun

Post by Kevin Pharis » Sun Nov 28, 2021 10:32 pm

Jonah D'Avella wrote:
Sat Nov 13, 2021 2:29 pm
I just got a tig welder the other day and am working on how to use it, any tips?
Jonah D'Avella wrote:
Sat Nov 13, 2021 8:47 pm
What do I use the different polarity for?
Gonna need some additional info here... let’s start with the welder model, what you intend to weld with it.
Henry K. Lee wrote:
Wed Nov 24, 2021 1:36 pm
TIG is an art with too many variables.
TIG does have many variables... but these variables provide additional capabilities beyond other welding methods. Once you get familiar with your TIG, you will rarely go back to yur ol stick or MIG. And you’ll never need to grind your welds again...😉


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Re: Welding fun

Post by Scott_Conger » Sun Nov 28, 2021 10:36 pm

Kevin

your last statement is very troubling...I am a much better grinder than welder


:lol:
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Re: Welding fun

Post by Henry K. Lee » Mon Nov 29, 2021 6:58 am

Know your past so you will appreciate your future!

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Re: Welding fun

Post by perry kete » Mon Nov 29, 2021 7:39 am

910914.jpg
1922 Coupe & 1927 Touring


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Re: Welding fun

Post by Kevin Pharis » Mon Nov 29, 2021 11:27 am

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Re: Welding fun

Post by Jonah D'Avella » Tue Nov 30, 2021 7:37 am

My current project, all from an old bedframe and rebar scraps:
Attachments
20211129_092945.jpg
20211129_092941.jpg
20211129_092939.jpg
20211129_092936.jpg
F: first F: find
O: on O: oil
R: race R: revive
D: day D: drive
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Re: Welding fun

Post by Kevin Pharis » Tue Nov 30, 2021 10:09 am

We still don’t know the machine model... but judging by the fingertip control and air cooled torch, I’m going to guess that you have a DC only capable welder, and so will rarely if ever switch over to “reverse” polarity (DCEP, DC+).

While your project looks like it will be entertaining when finished, your choice of materials and welding environment make TIG welding a challenge. Any paint, rust, or material scale will contaminate the weld and cause cracking, porosity, and bubbles. A gentile breeze can interrupt the gas shield, reeking havoc on the weld as well.

A “flux core” MIG can tolerate all of these material and environmental imperfections. Save your TIG for more controlled and cleaner situations, your experience and weld quality will improve

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Re: Welding fun

Post by Henry K. Lee » Tue Nov 30, 2021 10:14 am

I highly agree with Kevin’s findings. Jonah remember that your safety in creating fun is paramount.

Hank


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Re: Welding fun

Post by Jonah D'Avella » Tue Nov 30, 2021 11:58 am

I have a 220 volt AC DC machine. It is a primeweld. The majority of my welding was done indoors until it became too big to work inside. I fabricated each section indoors and then welded them together outside. I have a flux core Mig, but I prefer the control of the Tig. Also, it does not leave any slag which is preferable because I am occasionally doing Welds right on top of the previous weld. I am making sure that I am being safe, always wearing long pants and I have a fire resistant long sleeve shirt and an automatic welding helmet and Tig gloves. Why would I use reverse polarity? What is that and what does it do? Also, I have not had to grind many of my welds, short of the ones that I've had to cut apart to rebuild mistakes I made. This is my fourth go-kart frame and the most advanced of all. I currently have a 5 horsepower engine in it and and working on a 2 speed belt transmission in hoping to find a 7/2 or 10 horsepower engine to power it, the frame is supposed to hold a larger engine I'm just waiting till I find one..
F: first F: find
O: on O: oil
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D: day D: drive
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Re: Welding fun

Post by Kevin Pharis » Tue Nov 30, 2021 8:43 pm

The reverse polarity (DCEP) is primarily used for “balling” the tungsten electrode tip prior to welding aluminum (and possibly other metals too) on AC. As I understand it... balling the electrode has fallen from favor as the digital welders have taken over the industry. I was taught to grind the tungsten as normal (digital welder), except with a flat tip rather than sharp point. This flat tip will soften and ball as the tungsten struggles to manage the heat associated with AC welding, and saves the additional step of balling also


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Re: Welding fun

Post by VanEpsFan1914 » Tue Nov 30, 2021 9:04 pm

Making a vehicle out of a bed frame--

You have done built yourself a Snoozenberg.


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Re: Welding fun

Post by Dropacent » Fri Dec 03, 2021 1:44 pm

I really don’t like to rain on anyone’s parade, but here goes. First thing that comes to mind with this thread is what can go wrong……….. I’m speaking from a horrible experience. 40+ years ago, I gave a factory made go-cart frame to a model T friend. It was in my dads shed and he wanted it gone. Dad had a little motor on it when we were kids and we had a blast. Now , sans motor, friend let his boys mount a snowmobile engine on it, and globbed a bunch of welds for the brake and gas pedals, etc.
We soon had a model T club meeting at his place, and the boys were zipping around on it. Another T guy, may have been our President, I forget, got on it. He drove out by the road and then zoomed past our meeting hall at what seemed like 100 miles an hour. Throttle stuck, brakes didn’t work…….. he drove around out back where travel trailers were stored and ran into the tongue of one. Horribly injured, and I cannot get the vision out of my mind all these years later. He was crippled up after healing and died a young man.
…………so, what can go wrong? Amateur welds, using re-bar, and bed frame angle, and a big motor?.? I dunno. Bed frame angle is good for bed frames, and fence posts you don’t care about. Just about absolutely nothing else. What can go wrong? I’d feel bad if I didn’t write this, so if you don’t like it, get out your umbrella and keep going! At least I told you so.
In closing, be a Henry Lee…..do it once, do it right, or don’t do it.


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Jonah D'Avella
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Re: Welding fun

Post by Jonah D'Avella » Sat Dec 04, 2021 12:58 pm

Thank you for the warning Dropacent. I have been riding gocart since was 10 and I understand the dangers and have prioritized saftey. Did your friends gocart have rolbars? Also, I have an eingine cutout system and front and rear brakes. I will heed your warning and be carefull.
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Re: Welding fun

Post by Henry K. Lee » Sat Dec 04, 2021 6:13 pm

And I have 45 plus years experience building cars, boats, motorcycles, and aircraft but you must use quality metals at the start. Fusion of pre-hardened metals without an NDI or mag flux is not safe for any rolling item carrying a human. As I have told you before.., read up and know the unknowns. Flirting with mistakes others have made, will have history repeat itself as a statistic.

Hank


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Jonah D'Avella
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Re: Welding fun

Post by Jonah D'Avella » Sat Dec 04, 2021 9:13 pm

What is mag flux and ndi?
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Re: Welding fun

Post by Craig Leach » Sat Dec 04, 2021 11:24 pm

Hi Jonah,
Magna flux is magnetic partical testing using a magnet & iron powder to detect cracks & imperfections. NDI or NDT is non distructive testing or inspecting. Can be anything from ultrasonic to cemical die & exrays for detecting cracks & imperfections. Magna flux can only be done on ferrous metals that transfer a magnetic field. NDI/NDT are used on stainless steel, Aluminium and other none magnetic products. And yes every weld and
modification used in the convayance of lives should be tested to confirm it is capable of withstanding at least 150% of any conceivable load it may encounter. With that in mind I defer to distructive testing @ 200% on items of safety. If it fails the customer or myself needed a new one! Good looking welds can fail bad looking welds will. the Kid is right when it comes to appierence and grinding to make a weld look good.
Craig.

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Re: Welding fun

Post by TRDxB2 » Thu Dec 09, 2021 4:48 pm

Jonah D'Avella wrote:
Sat Nov 13, 2021 2:29 pm
I just got a tig welder the other day and am working on how to use it, any tips?

Jonah D'Avella
Search YouTube and read everything. practice, practice, pratice
https://www.google.com/search?q=tig+wel ... 8&dpr=0.83
TIG 101 https://www.youtube.com/watch?v=gCCdiksvXMU
20min quick learner https://www.youtube.com/watch?v=0enRXbhzW6U ha
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Re: Welding fun

Post by TXGOAT2 » Fri Dec 10, 2021 12:45 pm

Rebar? I'd be leery of that stuff.


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Re: Welding fun

Post by ThreePedalTapDancer » Wed Dec 15, 2021 3:07 pm

Wear a helmet and protective clothes, and have someone nearby with a phone in case things go awry. I have built many a wacky contraption and have the scars to tell the tales. Safety first.

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