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topic 2845

forming quality feather edges / burrs in metals


I am trying to form, good quality feather edges on thin metal strips, by grinding and / or polishing methods. I realise that most peolple want to eliminate these "burrs" or feather edges, however I actually require them! I am grinding stainless steel strips (~1 inch long, 0.006" thick) at at angle of about 15 degrees, on a rotating abrasive disk. If the abrasive is too course, a poor quality, inhomogeneous feather edge results. I want to form good quality, homogeneous and REPRODUCEABLE feather edges in SS, for a MEMS appliucation that I am working on. Any and all assistance would be most welcome. Please remember that this is something I must be able to do in-house. I do have access to quality polishing and grinding equipment. Thanks very much, Karl.

Karl Cazzini
- Framingham MA

This sounds like a chemical milling operation, but that may not be something you can do in house, as it involves both masking and dissolving metal with strong acids.

Ted Mooney, Teds signature
Ted Mooney, P.E.
Pine Beach, New Jersey

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