determining kc (specific cutting force).

Could any one tell me formula you use to determine specific cutting
force. Current Sandvik catalog doesn't include formula or example of
using it. Current catalog appears to have done work for me. Am curious
if in current catalog I multiply values by 250% if I'm taking a .04
chip as opposed to .016 that's listed.. Seems logical. Would think
formula is in older catalog.
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That's an interesting, if unusual, question. I don't recall making use of such a formula. On a search I found the following.
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What are you actually trying to do, or calculate?
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