Any fabricators using the DcH2000 cobra

Granted I haven't done aluminum with a torch, but I got the same warnings for tig, and the only difference from steel is the puddle is shiny and molten looking and not red, and you can see the impurities float up to the top when it turns.
 
SONIC. said:
Granted I haven't done aluminum with a torch, but I got the same warnings for tig, and the only difference from steel is the puddle is shiny and molten looking and not red, and you can see the impurities float up to the top when it turns.
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if you watch Sean he is moving very fast after he has his heat. He has his pressure turned down to as low as it will go and as soft of a flame kernel as possible with that torch. Check out Jim with the Dhc2000 http://youtu.be/lWDNRTbMLLo


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This is amazing. As I understand you can't do this with TIG http://youtu.be/aF1Srs_e1Aw


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I dont see anything in that video that couldn't be done by an equally skilled TIG welder. That guy has some skills for sure, and unless I'm missing something in that video it's the welder, not the process that is giving those results.

Personally, I have little use for a torch these days. I have one, but I haven't used it in forever and I think the tanks are probably empty. In comparison to other welding tools it's basically useless. My opinion is that it's money wasted in the long run. It's one of those things that will kinda sorta get the job done right now because you dont have a TIG, but once you do get a TIG you'll realize that you spent money on something that no longer has any value. I've done this with a lot of half measure tools. You're better off saving your pennies a little longer and getting the right tool the first time. You'll be amazed all the other things you find to do with it.
 
unless its so frigging cold that the water cooling for my tig torch is frozen up

then i use the torch to do some braizing and thaw the cooling lines out
 
cxman said:
unless its so frigging cold that the water cooling for my tig torch is frozen up

then i use the torch to do some braizing and thaw the cooling lines out
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lol...we got the Cobra DHC2000 and some Victor regulators that the O2 was converted for low pressure. Jim at J & S was a big help!
2a7u8a5y.jpg



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StinkBug said:
I dont see anything in that video that couldn't be done by an equally skilled TIG welder. That guy has some skills for sure, and unless I'm missing something in that video it's the welder, not the process that is giving those results.

Personally, I have little use for a torch these days. I have one, but I haven't used it in forever and I think the tanks are probably empty. In comparison to other welding tools it's basically useless. My opinion is that it's money wasted in the long run. It's one of those things that will kinda sorta get the job done right now because you dont have a TIG, but once you do get a TIG you'll realize that you spent money on something that no longer has any value. I've done this with a lot of half measure tools. You're better off saving your pennies a little longer and getting the right tool the first time. You'll be amazed all the other things you find to do with it.
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worse case scenario is my son learns to weld aluminum and steel with it....best case scenario is he teaches his son to weld with it :) gonna pass the torch for now maybe pass the tig later ;)


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I just took a look at the link in the first post again, and now I'm REALLY confused why someone would buy all this instead of a TIG welder. By the time you add up the torch, hoses, regulators and tanks you could easily buy an older used TIG machine, which is a lot more versatile. Hell, for not much more you could buy a lower end machine brand new.

I paid $500 for my old as dirt but impossible to kill TIG including a water cooler, a ton of spare parts and extra tungsten, a full size argon tank and about 100lbs of assorted filler rods. Seems like a no brainer to me. Why spend money twice, when you can just do it right the first time?
 
torches are handy for things other than welding i cannot imagine fabricating and repairing without the flame you cannot do it all with a tig
 
StinkBug said:
I just took a look at the link in the first post again, and now I'm REALLY confused why someone would buy all this instead of a TIG welder. By the time you add up the torch, hoses, regulators and tanks you could easily buy an older used TIG machine, which is a lot more versatile. Hell, for not much more you could buy a lower end machine brand new.

I paid $500 for my old as dirt but impossible to kill TIG including a water cooler, a ton of spare parts and extra tungsten, a full size argon tank and about 100lbs of assorted filler rods. Seems like a no brainer to me. Why spend money twice, when you can just do it right the first time?
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it is about to be a lost art....http://youtu.be/YFCdsX1j_u8
 
StinkBug said:
I just took a look at the link in the first post again, and now I'm REALLY confused why someone would buy all this instead of a TIG welder. By the time you add up the torch, hoses, regulators and tanks you could easily buy an older used TIG machine, which is a lot more versatile. Hell, for not much more you could buy a lower end machine brand new.

I paid $500 for my old as dirt but impossible to kill TIG including a water cooler, a ton of spare parts and extra tungsten, a full size argon tank and about 100lbs of assorted filler rods. Seems like a no brainer to me. Why spend money twice, when you can just do it right the first time?
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this is one of our local artists Dave Broussard. We have his art hanging on our wall. http://youtu.be/d00BvqDyvPA
 
I've done alot of aluminum welding and shaping over the years and honestly.....I find the TIG as being a better tool for the job. With a good TIG setup, controlling your weld pool is very easy. I just find that with my foot pedal you can rapidly adjust your heat to keep your pool constant and adjust as you introduce your filler rod. Dont get me wront, the torch is a great tool for what it was design to do and there are many applications where they come in handy. TIG just kind of makes the job for me...so much more enjoyable and easier. I think its personal preference.

As far as the best way to describe what the aluminum weld pool looks like, an easy way to see something similar...is take an open flame(lit match or lighter) and hold it to the top of a candle(or wax). Watch what that flame does to the wax as you get closer and closer to the wax. As you slowly bring the flame closer to the wax, it will start to liquefy and make a small pool or puddle. Remove the flame and it will return to solid. Aluminum acts in a way similar to the wax. Its not so much as you are looking for it to become shiny.....your watching for the transformation of the state(solid to liquid). Once you see that....you can keep your heat regulated at the torch(TIG) to maintain that pool right on edge of that liquid/solid state and add your filler rod if needed.

As for that Tinman video....its not the torch that is allowing him to work that seem without it breaking. Its the type of aluminum plate and the type of filler rod he is using that is allowing the metal to be worked. That metal doesnt care if its being heating via torch or TIG....it just knows its a heat source melting it. The more pure your aluminum is, the more plyable it will be. If you are using aluminum and filler rod with alot of titanium or other hard metals in it.....it will break or crack. Tinman is very talented at his work and knows his stuff. I respect his knowledge and talents.......I just think that video is a little misleading.

Just wanted to add my 2cents in.......and regardless of whether your using a torch or a TIG.......get out and try it....and have fun!! ;D
 
ohiocaferacer said:
I've done alot of aluminum welding and shaping over the years and honestly.....I find the TIG as being a better tool for the job. With a good TIG setup, controlling your weld pool is very easy. I just find that with my foot pedal you can rapidly adjust your heat to keep your pool constant and adjust as you introduce your filler rod. Dont get me wront, the torch is a great tool for what it was design to do and there are many applications where they come in handy. TIG just kind of makes the job for me...so much more enjoyable and easier. I think its personal preference.

As far as the best way to describe what the aluminum weld pool looks like, an easy way to see something similar...is take an open flame(lit match or lighter) and hold it to the top of a candle(or wax). Watch what that flame does to the wax as you get closer and closer to the wax. As you slowly bring the flame closer to the wax, it will start to liquefy and make a small pool or puddle. Remove the flame and it will return to solid. Aluminum acts in a way similar to the wax. Its not so much as you are looking for it to become shiny.....your watching for the transformation of the state(solid to liquid). Once you see that....you can keep your heat regulated at the torch(TIG) to maintain that pool right on edge of that liquid/solid state and add your filler rod if needed.

As for that Tinman video....its not the torch that is allowing him to work that seem without it breaking. Its the type of aluminum plate and the type of filler rod he is using that is allowing the metal to be worked. That metal doesnt care if its being heating via torch or TIG....it just knows its a heat source melting it. The more pure your aluminum is, the more plyable it will be. If you are using aluminum and filler rod with alot of titanium or other hard metals in it.....it will break or crack. Tinman is very talented at his work and knows his stuff. I respect his knowledge and talents.......I just think that video is a little misleading.

Just wanted to add my 2cents in.......and regardless of whether your using a torch or a TIG.......get out and try it....and have fun!! ;D
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Greg,
Thank you very much! Your site was one of the first sites we researched when we started our journey. We are having fun learning about all the disciplines! We found out from Jim that he uses 3003 aluminum and an 1100 rod for his demonstrations which. Both of them are passionate about what they do and highly competitive. I want my son to build relationshipsWe love DTT because we get well rounded advice that is impartial. Tinman and Jim are also skilled salesmen and as always the truth lies in between. We have learned that the meco torch was copied from a Victor that was used by the ladies to build planes during the war. We also learned that the developer of the Dillon marketed it as a deoxidizer of aluminum initially. The history is fascinating and as always we appreciate all the wisdom.
 
Is that Pete from the Tank Shop?

I love the way he bends teh tank metal with simple shop tools. Nothing fancy, no CNC benders etc. All old school.
 
teazer said:
Is that Pete from the Tank Shop?

I love the way he bends teh tank metal with simple shop tools. Nothing fancy, no CNC benders etc. All old school.
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Teazer you have some things in common with Pete Williams http://www.twofaced.f9.co.uk/twofaced.html ;)

Pete's story: http://www.twofaced.f9.co.uk/pete.html

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That's cool that you are going to be gas welding aluminium, I built my own alloy tank using o/a. Not sure if you have tried it yet it takes a ton of practice to be able to gas weld alloy. I would have done mine with tig if I could afford a tig set for sure. The hardest part with gas welding is the tacking, it is a bear!

I watched the video of the guy making the tank and I pretty much built mine the same way he does.

I hope you master the o/a welder, it is very rewarding when you lay down the perfect bead using o/a. Good luck and here is a pic of what I made and a link to my tank build if it is any help to you http://www.dotheton.com/forum/index.php?topic=30717.0

I totally agree with ohiocaferacer too.
 

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johnu said:
That's cool that you are going to be gas welding aluminium, I built my own alloy tank using o/a. Not sure if you have tried it yet it takes a ton of practice to be able to gas weld alloy. I would have done mine with tig if I could afford a tig set for sure. The hardest part with gas welding is the tacking, it is a bear!

I watched the video of the guy making the tank and I pretty much built mine the same way he does.

I hope you master the o/a welder, it is very rewarding when you lay down the perfect bead using o/a. Good luck and here is a pic of what I made and a link to my tank build if it is any help to you http://www.dotheton.com/forum/index.php?topic=30717.0

I totally agree with ohiocaferacer too.
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very cool! Love your bike Johnu! Thanks for the link!


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