Stamping letters in alum in CNC mill

[clujan]

I work with alum extrusions and we anodize after CNC added value operations I need a way to trace back to the operator that ran the parts since I cannot wire tag them going through the anodize process. What I would like to do is impact stamp a small 3 digit stamp into the parts. Any one currently doing this or something similar?

Thanks in advance

[Geof]

Why not engrave? I think many machines have engraving canned cycles built in but if not it would be pretty simple to do up your own.

[clujan]

I have (4) operators per shift x (3) shifts that could possibly run this machine I would like to invest in a stamp head (and 12 stampholders) rather than have (12) sub routines to engrave the (5) digit clock number. I have the CNC marker from Dorian International tool to try out. I was looking for other markers on the market that someone has personal experience with