dross issue when cutting galvabond on Amada F0-3015 would appreciate help
dross issue when cutting galvabond on Amada F0-3015 would appreciate help
(OP)
Hi All,
Would really appreciate any advice on cutting 2.4mm thick (13g or 0.093") galvabond sheet. Im not sure if you call it "galvabond" or some other similar product name,in the States, but just to be clear, what I am talking about is a hot dipped zinc coated steel made up of: Galvabond G2 steel, a hot dipped zinc coated commercial forming steel with a spangled surface. Am getting further and further behind on our production requirements so am desperate for help.
Regardless of the settings I change in terms power, feed rate, frequency, nozzle gap, or focus I cannot achieve a consistent dross free cut. In some directions it cuts clean and then it will not in cut clean in others, but even this is not consistent. I have tried using both Nitrogen and shop air gasses, getting slightly better result with air but blackened edges. The nozzle is centered and lens is brand new. Am using 5" lens, 2.5mm nozzle. I am not getting this issue with other materials such as stainless steel. I am left to ponder if this could be just that this material is just a bitch to cut or if we have other issues which may need addressing such as mode alignment or mirror issues. As our machine is due for service, we will soon getting new output coupler, mirrors etc, so will retry again after that.
if any one is cutting this material sucessfuly on Amada FO3015 or similar, would appreciate the settings you are using so we can try them.
Would really appreciate any advice on cutting 2.4mm thick (13g or 0.093") galvabond sheet. Im not sure if you call it "galvabond" or some other similar product name,in the States, but just to be clear, what I am talking about is a hot dipped zinc coated steel made up of: Galvabond G2 steel, a hot dipped zinc coated commercial forming steel with a spangled surface. Am getting further and further behind on our production requirements so am desperate for help.
Regardless of the settings I change in terms power, feed rate, frequency, nozzle gap, or focus I cannot achieve a consistent dross free cut. In some directions it cuts clean and then it will not in cut clean in others, but even this is not consistent. I have tried using both Nitrogen and shop air gasses, getting slightly better result with air but blackened edges. The nozzle is centered and lens is brand new. Am using 5" lens, 2.5mm nozzle. I am not getting this issue with other materials such as stainless steel. I am left to ponder if this could be just that this material is just a bitch to cut or if we have other issues which may need addressing such as mode alignment or mirror issues. As our machine is due for service, we will soon getting new output coupler, mirrors etc, so will retry again after that.
if any one is cutting this material sucessfuly on Amada FO3015 or similar, would appreciate the settings you are using so we can try them.





RE: dross issue when cutting galvabond on Amada F0-3015 would appreciate help
RE: dross issue when cutting galvabond on Amada F0-3015 would appreciate help
On our F1 (most likely has a head/cone that cuts galvanized material better than FO cone) I think we cut this material at around 90"/min.
Fiber lasers seem to cut this material more effortlessly with better quality and higher feed rates.
RE: dross issue when cutting galvabond on Amada F0-3015 would appreciate help
RE: dross issue when cutting galvabond on Amada F0-3015 would appreciate help
E0004:
FEED 2500
POWER 2000
FREQUENCY 2000
DUTY 70
GAS PRESSURE 0.30
GAS KIND 3
NOZLE GAP 1.5
FOCUS 0.5
NOZZLE 2.0
AC 12
RE: dross issue when cutting galvabond on Amada F0-3015 would appreciate help
i would try 5.0" lens 2.0mm nozzle and high pressure nitrogen .80, also you will need to lengthen the pierce times quite a bit.
RE: dross issue when cutting galvabond on Amada F0-3015 would appreciate help
RE: dross issue when cutting galvabond on Amada F0-3015 would appreciate help
RE: dross issue when cutting galvabond on Amada F0-3015 would appreciate help
I have made some improvements to the cut but what I have now is that I am getting a clean cut in one direction along one axis. As soon as it goes in any other direction it gets dross. I have tried a different lens, same result. Tried turning off height sensor, same result. Checked and rechecked nozzle centre, same result. Cleaned external mirrors, same result.
I'm pretty much bewildered on this one. I have a service due in the next couple of weeks, where I am getting new output coupler,mirrors,etc and can only hope that the issue may be resolved by the new components and a mode alignment.