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Tool Talk Discussion Forum

Re: Torch cutting tool

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torch guy

03-01-2013 06:06:17

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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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