Anyone have success with thin aluminum

Trying to hold down and cut .004 inch aluminum parts, the 12" X 12" sheet lifts up and the cut quality is poor. I’m using 2 sided tape and an Amana bit made for aluminum, very bad burrs and chatter on the edge.

Any suggestions.

Is the sheeting actually 0.004" thick? (0.1mm?)

Suggest the following:

1 - Specify you bit details, RPM and feed rate/depth per pass
2 - Use masking tape and superglue instead of double sided tape, it is firmer.
3 - Use thin sheet wood above the aluminium plate to hold it down, cut through both.

Your main symptom is lifting/poor cut quality
The illness may be feed rate/bit specific or insufficient hold down.

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