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thermeng2 (Mechanical)
13 Jul 05 16:40
Hi,
I have been asked to cut mild steel with nitrogen. I have never done this but have heard of it being done to get rid of the scale that is left on the cut edge from oxygen. I am using a 1500 watt mazak. If any one has cut conditions for doing this or pointers on were to start from that would be great.
Thanks
Greg7152 (Industrial)
3 Aug 05 13:07
bottom of the material focus point, high pressure N2 6-8kg(depending on machine capabilities)Limited to about .125 inch material. full power, freq, duty. feed rate start @ half of mild steel fedd rate and go up as far as you can have a decent cut
accutron42s (Automotive)
16 Sep 05 3:58
If you happen to get that nasty dross or slag on the bottom of the cut, tap it with a hammer. It is so hard & brittle it comes right off. I discoverd this by accident when cutting mild steel with high pressure nitrogen. I threw a part into the scrap barrel & missed. When I picked the part off up the floor the slag was gone!
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ScottI2R (Electrical)
16 Sep 05 16:29
A division of our company used to clean cut stainless steel with N2 @ 300psi. I cannot recal how thick or feedrate. Hope this helps some...
Scott In a hundred years, it isn't going to matter anyway.
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