Charles R Conway

US Patent:

8439608, May 14, 2013

Filed:

Sep 1, 2010

Appl. No.:

12/873516

Inventors:

Shi Chen - Huntingdon PA, US
Nicholas Joseph Henry - Latrobe PA, US
Charles Lisle Conway - Ligonier PA, US
Kent Peter Mizgalski - Stahlstown PA, US
Joseph V. Nelson - Greensburg PA, US
Linn R. Andras - Latrobe PA, US
Thomas O. Muller - Greensburg PA, US
Paul D. Prichard - Greensburg PA, US
Brad D. Hoffer - White PA, US

Assignee:

Kennametal Inc. - Latrobe PA

International Classification:

B23B 27/10

US Classification:

407 11, 407113, 407103, 408 56

Abstract:

A cutting insert-shim assembly that has a cutting insert with a bottom surface and a plurality of interior coolant passages wherein each interior coolant passage has a coolant inlet in the bottom surface of the cutting insert. The shim has a first side surface and a second side surface and contains a cavity, which communicates with the coolant conduit. The cavity defines a first opening in the first side surface and a second opening in the second side surface. When the shim is in a first condition, the first side surface contacts the bottom surface of the cutting insert and the first opening provides a first level of coolant communication to the interior coolant passages in the cutting insert. When the shim is in a second condition, the second side surface contacts the bottom surface of the cutting insert and the second opening provides a second level of coolant communication to the interior coolant passages in the cutting insert.

US Patent:

20110020073, Jan 27, 2011

Filed:

Sep 2, 2010

Appl. No.:

12/874591

Inventors:

Shi Chen - Huntingdon PA, US
Nicholas Henry - Latrobe PA, US
Charles Lisle Conway - Ligonier PA, US
Kent P. Mizgaiski - Stahlstown PA, US
Paul D. Prichard - Greensburg PA, US
Linn R. Andras - Latrobe PA, US
Ted R Massa - Greensburg PA, US

Assignee:

Kennametal Inc. - Latrobe PA

International Classification:

B23B 27/10
B23B 27/16
B23B 27/22

US Classification:

407 11, 407103, 407107, 407115

Abstract:

A cutting assembly that is useful in an operation for chipforming removal of material from a workpiece. The cutting assembly includes a holder having a seat and containing a coolant delivery passage. A locking pin, which has a longitudinal locking pin bore, is affixed to the seat so the longitudinal locking pin bore is in communication with the coolant delivery passage. A cutting insert has a rake surface, a corner cutting edge region, a central cutting insert aperture, and a radial coolant trough with an orientation toward the corner cutting edge region. At least a portion of the locking pin is within the central cutting insert aperture. A clamp assembly attaches to the holder and engages the cutting insert. The clamp assembly has a diverter plate, which has a bottom surface defining a diverter bowl and a diverter channel. The longitudinal locking pin bore opening to the diverter plate whereby coolant flows into the diverter bowl and through the diverter channel into the radial coolant trough toward the corner cutting edge region.