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onur cakir
08-01-2009, 4:30 AM
Hi Everyone !

Is it possible to cut 1 mm (0,25") silver with 45W laser power ?

As far as i know silver is not so resistant to heat so i thought i might have a chance with it :)

I'm looking for a small 1 mm silver plate to try but i counldnt find yet.

Frank Corker
08-01-2009, 6:53 AM
I can't definitely answer your question because I've not tried, but I am plumping for 'not in a million years'.

Mike Null
08-01-2009, 9:11 AM
You might melt it but I don't think cutting is a possibility with a laser.

Dave Johnson29
08-01-2009, 9:53 AM
Is it possible to cut 1 mm (0,25") silver with 45W laser power ?


I can't see it happening Onur, the silver will conduct the heat away too fast and I doubt it will even melt unless it is a small piece you can saturate, even then very doubtful.

Try a thin piece of copper. Copper has the closest Thermal Conductivity to silver.

onur cakir
08-01-2009, 10:00 AM
Thanks everyone....what about decreasing Freq. down to 200-300 with power %100 ?

Hope i'll find silver or copper plate soon, i'm so curious about the result.

Rodne Gold
08-01-2009, 10:10 AM
Dont bother trying , you will never cut 1mm silver with our lasers , you wont even cut 0.2mm...try some tin foil ..see how far you get :)

onur cakir
08-01-2009, 10:26 AM
hmm...it looks i wont become rich soon !

what about 100W power from synrad tube ?

Mike Mackenzie
08-01-2009, 11:32 AM
You will need minimum 200 watts with a gas assist to even start to cut metal. Try a yag type laser that is your better bet. Actually you could probably cut thin metals using less power with a high pressure gas nozzle assist. Be careful if you try foils the beam will reflect off of the material.

John Noell
08-01-2009, 3:34 PM
A friend who designs circuit boards asked me to try etching a board with thin copper cladding. 45 watts at 100% power and 1% speed did not even mark it.

Dan Hintz
08-03-2009, 11:18 AM
The wavelength of CO2 lasers is about the worst you can use for absorption in metal... YAG is 1/10th the wavelength and is readily absorbed.