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Tool Talk Discussion Forum

Re: Torch cutting tool

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Author  [Modern View]
bill mart

03-01-2013 05:18:13

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read the Utube comments,more complaints on the music than comments on the rig. Can a torch really make that smooth of a cut? Bill

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torch guy

03-01-2013 06:06:17

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 Re: Torch cutting tool in reply to bill mart, 03-01-2013 05:18:13  
Yes a O/A cut can provide cuts higher quality thasn that. The keys to successful Oxyfuel cutting are taking care of your equipment. The torch is NOT a hammer, neither is the tip. Keep the tip clean and properly size your tip to the material your working with and keep it clean. I consistently see folks over size the tip. The next step is correct working pressures, another mistake most folks make is to much pressure or the regulators are bottomed wide open. You local welding supply can fix you up with a chart that explains proper tip size and pressures if your not sure. A neutral flame is mandatory to produce quality cuts. Getting comfortable is one of the main things and the most important is safety. Use the correst #5 filter Lens and back off the regulators when shutting down. You can't do a good job if you can't see what your doing or have a reg screw blowed through yourself.

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Stick welding

03-01-2013 10:55:13

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 Re: Torch cutting tool in reply to torch guy, 03-01-2013 06:06:17  
A magnetic cutting guide is nice accessory to have. I have a cast aluminum one that the tip glides on a lot nicer than a piece of steel. Lining up the preheat holes makes for the best straight line cuts and preheating thicker plate also helps. Off setting the preheat holes is best for bevel cuts. The cut in the video has a slightly rounded edge on one side most likely from too much preheat or having the flame too close. I sometimes use one size smaller tip and a little preheat to get a real nice cut with a thinner kerf. A perfect O/A cut will be cleaner than a sheared cut. On 1/4" and above. I much prefer a cutting torch over a plasma torch.

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torch guy

03-02-2013 19:09:20

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 Re: Torch cutting tool in reply to Stick welding, 03-01-2013 10:55:13  
Sounds like we practice a lot of the same methods stick man. A thin, sharp kerf with a very very slightly sweeping drag lines are always the best looking cuts in my opinion. Not quit as step as a production cut but just a hair.

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03-01-2013 05:49:32

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 Re: Torch cutting tool in reply to bill mart, 03-01-2013 05:18:13  
Here is a cut I made on 1-inch plate. When I built a log splitter for my brother-n-law. I didn't think about taking a picture until a few months after making the cut, so the plate set outside the shop in the rain. I didn't knock the slag off, or touch it in anyway, just through it off to the side away from the door.

Well I've been trying for 10-minutes to post a close up picture, but it won't do it. This is the most F__ked up site on the Internet for posting pictures! :roll:
This post was edited by Puddles at 05:50:38 03/01/13.

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torch guy

03-01-2013 06:13:04

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 Re: Torch cutting tool in reply to Puddles, 03-01-2013 05:49:32  
Nice looking job Puddles.

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03-01-2013 07:16:53

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 Re: Torch cutting tool in reply to torch guy, 03-01-2013 06:13:04  
Thanks torch guy!
Had to post this with Image Shack.

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03-02-2013 02:45:55

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 Re: Torch cutting tool in reply to Puddles, 03-01-2013 07:16:53  
What plasma do you have. Where I used to work we had a Thermal Dynamics cut master 75. Did a nice job when it was new. It got a little older and with new consumables in the torch the finished job was less than perfect.

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03-02-2013 10:19:13

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 Re: Torch cutting tool in reply to JOB, 03-02-2013 02:45:55  
Sorry JOB, I didn't realize you were talking to me. I use the modern view, so if you don't call me out by name I sometimes miss when I'm being talked to. I have a Hypertherm 1250, but as Stick welding says that cut wasn't made with a plasma. It was made with propane & oxygen.

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Stick welding

03-02-2013 22:59:36

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 Re: Torch cutting tool in reply to Puddles, 03-02-2013 10:19:13  
Puddles, that's a darn good cut for propane! Acetylene is ridiculously priced there too? The explosion at the carbide plant was 2 years ago but I think they're milking as long as people are willing to pay insane prices for acetylene. I shouldn't say this but there's huge margins in industrial gasses because there's only 4 major producers in the world. About 30/35 years ago, there was a class action suit for price fixing of industrial gasses up here. There was some pretty big fines imposed.

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Stick welding

03-02-2013 10:02:46

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 Re: Torch cutting tool in reply to JOB, 03-02-2013 02:45:55  
Puddles cut wasn't done with a plasma.

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dr sportster

03-01-2013 11:20:05

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 Re: Torch cutting tool in reply to Puddles, 03-01-2013 07:16:53  
Ha ha does a shear even cut it that straight and nice ? Skills !

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