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Deep Aluminum Etching

February 19, 2009

Hi,

I want to make a reservoir in an Aluminum substrate which is 2 mm thick. The reservoir is about 6mm in diameter. It has to be 0.1 mm deep into flat substrate of pure aluminum. I need good surface finish.

Please let me know a suitable etchant and procedure for photochemical etching.

Regards,

Imran Malik
Student - Pasadena, California, USA

February 20, 2009

Hi, Imran. Why do you want to photochemically etch this instead of simply machining it? Sounds like it would take a millisecond to do it perfectly with an end mill :-)

Regards,

Ted Mooney, P.E.
Striving to live Aloha
finishing.com - Pine Beach, New Jersey

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