Heavy Dross - Help

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tazcreek
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Heavy Dross - Help

Post by tazcreek » Sat Nov 20, 2021 8:07 pm

Newbie here….what do I need to change to reduce the dross on the back of my cut? Using a cut master 52, plasma cam software.

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adbuch
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Re: Help

Post by adbuch » Sun Nov 21, 2021 12:27 am

What material are you cutting? How thick is the material? Maybe post some screen shots of your Design Edge Settings for Machine Control, Offset/Convert, and Height Control so we can see what settings you are using. Also post a photo of the edge quality and front side of the part. Does the dross fall off easily if you drop the part on the steel table or floor, or is it really difficult to remove?
David

weldguy
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Re: Help

Post by weldguy » Mon Nov 22, 2021 10:08 am

That is some thick fluffy dross. I think that if you were to increase your cut speed you could eliminate a lot of that. Be sure your are maintaining the correct cutting height also after you make the speed change. Cut height for your TD should be around .100" Cut another and lets check it out!

tazcreek
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Re: Heavy Dross - Help

Post by tazcreek » Tue Nov 23, 2021 4:50 pm

Here are some pictures of our settings, it’s 12 gauge metal.

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adbuch
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Re: Heavy Dross - Help

Post by adbuch » Wed Nov 24, 2021 12:12 am

I cut 12 ga. using FineCut consumables at about 120 imp, or at about 190 ipm using non-FineCuts. These are book specs for my Hypertherm Powermax 85. You have a different cutter, but perhaps your 88 ipm is a bit slow. In referring to the mechanized cut charts for your machine, the recommend cutting speeds are shown below. Cut speeds of 142 imp for shielded consumables and 170 ipm for non-shielded consumables. I would recommend trying the recommended cutting speed for the particular consumables you are using to help eliminate or reduce your low speed dross.
David
Cutmaster 52 cut chart - shielded.jpg
Cutmaster 52 cut chart - non-shielded.jpg

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adbuch
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Re: Heavy Dross - Help

Post by adbuch » Wed Nov 24, 2021 12:17 am

You may also find this information useful.
David

https://www.hypertherm.com/en-US/suppor ... uch-dross/
Low Speed Dross.jpg

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weldguy
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Re: Heavy Dross - Help

Post by weldguy » Thu Nov 25, 2021 10:00 am

88ipm seems a little slow and like i said that definitely looks like low speed dross. Don't be afraid to change your speed, you can always go back. Give it a try and I am confident you will achieve improved results.

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