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Metalworking (rec.crafts.metalworking) Discuss various aspects of working with metal, such as machining, welding, metal joining, screwing, casting, hardening/tempering, blacksmithing/forging, spinning and hammer work, sheet metal work. |
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Drilling feed rate
I am trying to understand a little better, how to drill stuff with
CNC. My current approach amounts to "winging it" and deciding something like "it oughta be good enough at 2 IPM". Well, I think that I can do better than that. I looked and have not found a decent drilling calculator. My feeling is that the drilling feed rate in any given material is calculated as inches per revolution, and IPR is proportional to drill diameter. Does anyone know of some good tables for this sort of thing? i |
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