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Registered
Join Date: Dec 2001
Location: Cambridge, MA
Posts: 44,430
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Acid-etching metal foils
anyone here have experience "cutting out" complex shapes in metal foils using an acid-etching technique?
Our waterjet cutter, who did an excellent job with 1/4 inch Aluminum sheet, says he can't cut multiple layers of foil. Any ideas on how I can make these in production quantities using various foils? 
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Tru6 Restoration & Design |
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11-05-2007, 04:08 AM
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Greasy Member
Join Date: Mar 2006
Location: Indiana
Posts: 1,457
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I would try using a standard UV sensitive photo-resist.
Basically, you would coat your foil with a photo-resist film, and allow it to dry. Next, place the template over the top of the foil, and expose it to a UV light source. A solvent is then used to wash away the resist that has been exposed to the light. Once the solvent is removed, a light acid mixture can be used to disolve the remaining foil. Lastly, you use another solvent to clean your foil piece. All in all it is similar to a circuit board construction. If you need more details, I think I have a catalog somewhere around here with all the materials you would need. Hope it helps! -Nick
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Owner: Bennington Motorsports www.benms.com Sponsor for Midwest Region 944-SPEC racing series -When was your timing belt changed or tensioned?? -Yes, I'm the crazy man that will loan out my 9201. Just PM me, I will add you to the list and get it out ASAP. |
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11-05-2007, 04:53 AM
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Registered
Join Date: Dec 2001
Location: Cambridge, MA
Posts: 44,430
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hi Nick,
that is exactly what I want to do, thank you. I'll google around and see what I can find for experimentation. BTW, do you need a set of Lotus hubcaps? I've got a set I found recently in storage from a 66 Elan.
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Tru6 Restoration & Design |
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11-05-2007, 05:16 AM
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