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US 6,957,933 B2Granted
Threading insert with cooling channels
AssigneeSiderca S.A.I.C.
InventorsNelson M. Pachao-Morbitzer, Hugo A. Ernst
Life of this patent
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Abstract
A metalworking apparatus includes a threading insert with a channel-less chip breaker and a holder for holding the threading insert. The threading insert includes (i) one cooling channel disposed on the top side of the threading insert for each crest and each valley, which terminates near the cutting region, and (ii) a ceramic coating on at least the cutting region of crests and valleys, with each cooling channel being uncoated.
Claims11
A metalworking apparatus comprising:
- a threading insert having a top side, a bottom side and a front side, the front side including crests and valleys having a cutting region for cutting a workpiece, said threading insert including (i) at least one cooling channel disposed on the top side of said threading insert for each crest and each valley, each cooling channel terminating near the cutting region of the crest or valley, and (ii) a ceramic coating on said top side of the threading insert that is at least near the cutting region of the crests and valleys, but with each cooling channel on said top side being uncoated;
- a channel-less chip breaker having a top side and a bottom side;
- and
- a holder for holding said threading insert and said channel-less chip breaker so that the top side of said threading insert contacts the bottom side of said channel-less chip breaker and the crests and valleys face away from said holder.
1 more element
Dependencies are inferred from the claim text.