Cut kerf?

gamble · Post by **gamble** » Fri Dec 19, 2014 10:56 am

Cut out a lot of keychains last time with my standard consuambles. This time I enlarged the image a little bit, maybe 10% and tried some s45 0.8 sized tips with less amperage. 30amps. 80ipm, 14g steel.
Tried a very close torch height and a higher one at like .100. Seems the kerf is much wider and all of my cuts were ruined.
Any thoughts? Even tried 35amps, but I think that was too much for this sized tip. I have some s45 trafimet consumables that I would like to make work for doing more fine work, but seems everytime i use them the results aren't as good as with the larger oem consumables.

Post by **jimcolt** » Fri Dec 19, 2014 2:13 pm

With the same nozzle....kerf width will increase when:

- Nozzle bore wears
- Torch to work height is increased
- cut speed is decreased
- Cut amperage is increased
-Cut air flow is increased

Jim Colt Hypertherm

gamble wrote:Cut out a lot of keychains last time with my standard consuambles. This time I enlarged the image a little bit, maybe 10% and tried some s45 0.8 sized tips with less amperage. 30amps. 80ipm, 14g steel.
Tried a very close torch height and a higher one at like .100. Seems the kerf is much wider and all of my cuts were ruined.
Any thoughts? Even tried 35amps, but I think that was too much for this sized tip. I have some s45 trafimet consumables that I would like to make work for doing more fine work, but seems everytime i use them the results aren't as good as with the larger oem consumables.

gamble · Post by **gamble** » Fri Dec 19, 2014 3:16 pm

It was a brand new tip, airflow is always the same. i don't touch touch the regulators at all. my hyperthem rep told me same air pressure regardless of what you are cutting, thick or thin.
I'll do a line speed test on this with 30amp tip and see where that gets me.
Thanks

Post by **jimcolt** » Sat Dec 20, 2014 9:44 am

Well.....that would probably work if you had a Hypertherm. For an Everlast plasma you would be best suited following their specs for air pressure and nozzle (tip) size.

Jim Colt Hypertherm

gamble wrote:It was a brand new tip, airflow is always the same. i don't touch touch the regulators at all. my hyperthem rep told me same air pressure regardless of what you are cutting, thick or thin.
I'll do a line speed test on this with 30amp tip and see where that gets me.
Thanks

Cut kerf?

Cut kerf?

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Re: Cut kerf?

Re: Cut kerf?