Reamer
AssigneeKennametal Inc.
InventorsMichael HACKER, Sebastian Kunschir, Armin Zimmermann, Xaver Spichtinger, Wolfgang Lang, Michaela Götz, Heinrich Manner
Life of this patent
Estimating the term…
Abstract
A reamer has a basic tool body made of hard metal (12) and a plate-like cutting insert (18) inserted into a recess (28) at the front. The cutting insert (18) is at least partially made of polycrystalline diamond, its cutting edges (20) situated axially offset relative to the cutting edges (30) on the basic tool body (12), thus engaging with the workpiece later.
Claims9
A reamer having a basic tool body at least partially made of hard metal that has a clamping end and a front end opposite the clamping end that penetrates into the workpiece, said front end having a front side and hard metal cutting edges that protrude axially around the circumference, the front side having an axial recess into which a plate-like cutting insert at least partially made of polycrystalline diamond is inserted, said cutting insert having a plurality of radially protruding diamond cutting edges, the hard metal cutting edges cutting first starting from the front end, followed by the diamond cutting edges, and the hard metal cutting edges being situated on a smaller diameter than the diamond cutting edges.
Dependencies are inferred from the claim text.