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Copper and other materials as beam blocks

thread380-225733

Copper and other materials as beam blocks

Copper and other materials as beam blocks

(OP)
I am laser cutting a titanium medical device, and using a copper beam block to prevent back wall damage.  I am curious if anyone has experience using other materials for beam blocks (since copper is not tissue friendly). If I continue to use the copper, does any one no of a good chemical copper removal process.    

RE: Copper and other materials as beam blocks

You don't say what wavelength your laser is.  If it is a CO2 laser, be aware that copper is highly reflective at 10.6, even if it is highly oxidized.  A much better choice for a beam block would be graphite.

Timelord

RE: Copper and other materials as beam blocks

(OP)
Sorry, I forgot the wavelength.  I am using a Nd/YAG at 1.06.  I will look into the graphite.

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