Laser Engraving Copper

[Gary Hair]

I made Thermark as thin as possible and I added also as thin layer as I could, as Gary and Mike suggested. Is there a rich, black mark after engraving ? No, it went inside to the material approx 0,14mm! Now the copper plate is like etched or engraved with blade… I don’t have a suitable gauge to measure it but the marking truly is deeper than 0,1mm.

Am I some kind Nobel candidate now ?

Regards,
Hannu

You probably obliterated the Thermark - I'd try running a power grid around 60 speed and see what happens. Oh, and I'm on my way to the patent office to file for the technique that I told you to use - please stop using it immediately or start paying me USD$100/minute...

[Mike Null]

Gary

Forget about it, I filed a prior claim. I can sell tons of that stuff. It ain't like any copper I've ever seen.

Hannu

What is the metal? Are you sure you didn't use ferric chloride instead of cermark?

[Hannu Rinne]

You probably obliterated the Thermark - I'd try running a power grid around 60 speed and see what happens. Oh, and I'm on my way to the patent office to file for the technique that I told you to use - please stop using it immediately or start paying me USD$100/minute...

Gary, don't bother, I'm already in my tent, waiting for local patent office open after Easter, to file your formula

Mike, the metal should be "half hard" copper, 1mm thick. Engraving made with Thermark LMM14 - or I hope it is - the price for 1 kg was extremely expensive

Regards,
Hannu

[Chuck Stone]

[QUOTE=Mike Null;2256454
What is the metal? Are you sure you didn't use ferric chloride instead of cermark?[/QUOTE]

I wonder... if you mask and then etch with ferric chloride, is that enough
for paint to get a good grip?

[Mary Lee]

Congratulations to you Hannu !
May I know what kind of laser you use ,C02 or fiber or other ?
I will try it next time before machine packing.
Thanks for your sharing ~
Regards,
Ms.Mary