Choosing A Gas Cup Or Gas Lens | TIG Welding
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- Опубликовано: 8 июн 2024
- What is different about a gas lens compared to a gas cup or nozzle? Is there simply one option that is always better than the other?
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The secret to TIG welding success lies in its ability to shield the arc from contaminants in the atmosphere using the argon shielding gas we covered in the last module. The high-pressure argon is connected to a regulator which controls the gas flow rate and supplies it to our welder where we can switch this flow on or off via our torch or foot pedal through an internal solenoid inside the machine.
We don't have a lot of variables in the supply of shielding gas and while our regulator will allow us to adjust the flow rate, our machine settings can also delay our arc start after the gas solenoid has switched which is known as pre-flow. You can also set the shielding gas to keep flowing after the arc is stopped which is called post flow.
That is only part of the control we have though as we can also use different nozzles or cups and lenses of varying sizes which help us ensure we have good coverage of argon gas over our weld no matter how big or small the job, how tight the gap, or what the material we are welding is.
In this lesson, we cover some points on those topics along with cup and lens sizing, the advantages and disadvantages of using a gas lens including tungsten stick out and manoeuvrability options along with showing you the actual difference in coverage between a gas cup and a gas lens.
Three important things to take away from this lesson are:
1.) Gas nozzles are numbered according to size from a number 3 for micro torches to a massive 24 for extreme coverage.
2.) Nozzles provide a relatively direct flow of gas which is great for welding aluminium, but more reactive metals require better coverage which is where a gas lens really comes in handy.
3.) Gas lens sizes follow a similar numbered convention and diffuse the argon, allowing it to spread out further and better shield the work area giving you the chance to produce high-quality and structurally sound welds.
This is just ONE module from the full Practical TIG Welding course available via the link above with the discount coupon.
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TIME STAMPS:
0:00 - Argon Pre-Flow & Post-Flow
1:01 - What Are Gas Cups/Nozzles
1:25 - Gas Cup Sizing
2:16 - Different Styles Depend On Your Torch
2:30 - A Gas Lens & Sizing
3:01 - Gas Cup Coverage Example
3:26 - Gas Lens Coverage Example
3:50 - Efficiency/Gas Savings
4:17 - Large Cup Sizing
5:05 - Careful With Your Gas Flow Settings
5:36 - Flow Rate Rule Of Thumb
6:09 - Large Cup Downsides
6:58 - Tungsten Stick-Out
7:26 - Working In The Wind
8:00 - Gas Lens And AC/DC Welding
8:38 - Key Points
9:24 - Just One Of Over 50 Modules
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#highperformanceacademy #tigwelding #tig #gaslens #gascup #welding101 #fabrication #motorsportfabrication #learndriveoptimise #motorsports #buildtunedrive #carmods #freelesson 
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Keen to learn more welding topics like this? Check out the full Practical TIG Welding course here: hpcdmy.co/LearnToTIG
Use this coupon for a discount too: RUclips25
More quality information in one video than about 10 how to weld videos
Thanks dude! Hopefully it helps a few people avoid getting tripped up by using the wrong cup size so they can instead spend the time getting some solid experience rather than chasing their tail 😎 - Taz.
No kidding, this was to the point! Well worth the time to watch.
You my friend are the best!!! learned so much from you over the years just honestly wanted to thank you. You have so much authentic quality knowledge it's so wonderful and amazing to share it with everyone. Very generous thoughtful and kind of you.
Thanks for the support!
I haven't done a lot of welding so am wrapped that HPA has covered it again. Always awesome content 👍 Aussie Fan 💪🇦🇺🤘🆒
Yet another great episode about welding. You are up there with the best.
Your accent explained. Gas becomes guess. Lens becomes lins. Ten becomes tin.👍
Top quality video.
Cheers for the support James, glad you enjoyed it mate - Taz.
Take $25 USD off ANY HP Academy course with this coupon: RUclips25
Enroll now: hpcdmy.co/25offytc - Taz 👨🏻
Great episode
Cheers mate! - Taz.
Subscription applied ! . You are like the best instructional yet ,and I watch a LOT LOT of RUclips bro
Appreciate that mate 😎
How did you make the smoke? Did you like T in the output of a fog machine right after the argon comes out of the machine?
What did you use to make the smoke?
Wow
I made a mistake and the welder I purchased is a scratch start TIG (multi purpose MIG and stick also) so I know Aluminum is out of the question. But can I still fab up some nice exhaust and bracket related things with a scratch start?
ruclips.net/video/H_DwA0vzKXI/видео.html
You sure can. It's not the preferred setup these days, but, it is still going to get the job done if you take the time to put in some practice on it. Definitely better than no welder 😎
Experiment with a few different ways to start the arc too, some guys use a copper scratch pad, others put the filler rod to the workpiece and then the tungsten to that to avoid contamination.
Note we don't dive into that in the course material specifically if you end up taking it, but there is plenty of other info that will help you out once you're confident with that aspect 🧠 - Taz.
Omg I wish I would have thought of this
All good mate, now you know, you know! That's a win 😎 - Taz.
Watched this on the gram, and now adding here so the al guy at RUclips notices you HPA. 😎
Who's al you ask? al-go-rhythm. #baddadjoke 😛
We have a love-hate relationship with old Al 😂 Thanks man!
I wish this was HPA was available in 2014. I wouldn't of went to college LoL
The knowledge existed but it's certainly amazing how it's easier and easier to access these days. Long may that last and cheers for taking the time to comment 😎 - Taz.
whats the difference between a gas lens collet vs gas lens cup?
Basically the shape. A collet creates more turbulence in the gas flow which can draw in oxygen, defeating the purpose of using shielding gas as well as arguably requring more flow for the same coverage since it's just spitting it out all over the show, comparatively.
A lens does the same functional tasks, but by design does a better job of directing the gas.
This allows a few things including the ability to have your tungsten sticking out a bit further which gives you better visibility - Taz
I miss welding.
Why'd you stop? - Taz.
@@hpa101 new job n i dont have my own equipment but I wana get back into a shop soon 👍🤙
That's a good reason. Hope the new job is going well!