Kennametal Inc.

University of Kentucky Research Foundation

Ted Richard Massa

David R Siddle

Linn R Andras

Paul D Prichard

John S Van Kirk

Edward V Conley

John J Prizzi

Robert Alfred Erickson

Gregory Aaron Hyatt

John S VanKirk

Robert H Montgomery, Jr

Douglas Edward Bise

James P Materkowski

Phillip W Haga

William M Stoll

Robert R McNaughton, Jr

William A Bryant

Gary John Condon

William P Losch

James J Stohr

Ruy Frota De Souza Filho

Bruce Lanier Walcott

William Michael Long

Paul Albert Brown

Nitin Chaphalkar

Adam South

Daniel C Statler

Stephen T Belsheim

John William Powell

Kenneth M Malott

Curnie A Dunn

James E Rutherford

Sanjiv Tewani

Keith E Rouch

Robert W Stephenson

L Scott Stephens

Lynn R Andras

A cutting insert rotated about its axis may be utilized during a metalworking operation and applied against the rotating workpiece to enhance tool performance. The cutting insert is secured within a toolholder having features to secure the insert but at the same time make for efficient removal of the insert from the toolholder.

Assembly for rotating a cutting insert during a turning operation and inserts used therein

A metal cutting system with a tool holder, a shim, an insert with a top depression, a top piece and a clamp. A rake face cooling channel for fluid delivery is formed between the top piece and the depression in the insert. A primary discharge slot at the end of the rake face cooling channel delivers fluid from below the cutting edge of the insert. A second cooling channel for delivery of fluid to the flank face is formed between the insert and the shim or is formed between the shim and the tool holder with a portion of the cooling channel passing through the shim.

Metal cutting system for effective coolant delivery

A toolholder with a controllable critical angle, such as a lead, trailing, rake or clearance angles, includes a tool spindle for retaining the toolholder in a tool rest of a machine tool. The machine tool includes at least one linear axis, for example, three mutually perpendicular axes, a rotary axis and a rotation axis. The rotary axis and/or rotation axis is controllable to move to a specified position in synchronization with a movement of one of the linear axes. An adaptor supports a cutting tool that is retained in the adaptor by a clamp. The cutting tool defines a critical angle, such as a lead angle, a trailing angle, a rake angle and a flank clearance angle, wherein the critical angle is corrected as a vector of movement of at least one of the linear axis is changed. In addition, the cutting tool can be positioned on opposite side of a centerline of rotation of the workpiece to effectively double the life of the cutting tool. A method of controlling a toolholder is also disclosed.

Toolholder

A rotary tapered tool holder includes a body and an adapter sleeve disposed about a portion of the body. The body and the adapter sleeve have front and rear contact surfaces with different taper angles. The front contact surfaces are optimized for an interference fit and the rear contact surfaces provide an axial stop and support band when the tool holder is assembled into a clamping receptacle. Face contact is achieved between a flange contact surface of the body and a face contact surface of the clamping receptacle.

Rotary tapered tool holder with adapter sleeve

A cutting insert rotated about its axis may be utilized during a metalworking operation and applied against the rotating workpiece to enhance tool performance. A method, including an assembly with a rotatable insert mounted to a toolholder may be utilized to achieve this result.

Method and assembly for rotating a cutting insert during a turning operation and inserts used therein

A toolholder () with a controllable critical angle, such as a lead, trailing, rake or clearance angles, includes a tool spindle () for retaining the toolholder in a tool rest () of a machine tool. The machine tool () includes at least one linear axis, for example, three mutually perpendicular axes, a rotary axis and a rotation axis. The rotary axis and/or rotation axis is controllable to move to a specified position in synchronization with a movement of one of the linear axes. An adaptor () supports a cutting tool () that is retained in the adaptor by a clamp (). The cutting tool () defines a critical angle, such as a lead angle, a trailing angle, a rake angle and a flank clearance angle, wherein the critical angle is corrected as a vector of movement of at least one of the linear axis is changed. In addition, the cutting tool () can be positioned on opposite side of a centerline of rotation of the workpiece to effectively double the life of the cutting tool. A method of controlling a toolholder () is also disclosed.

A rotary tapered tool holder includes a shank including a front mounting portion and an aperture. An expansion sleeve is disposed about a portion of the shank. The expansion sleeve includes a front mounting portion adjacent the front mounting portion of the shank. An expansion rod is disposed within the shank and includes a pocket or cam surface. An expansion pin is at least partially received in the aperture of the shank. The expansion pin has a first end or cam surface for engaging the pocket of the expansion rod, and a second end for engaging the front mounting portion of the expansion sleeve. A force applied to the expansion rod in a first direction causes the expansion pin to move in a second direction and into positive engagement with the front mounting portion of the expansion sleeve, thereby forcing the expansion sleeve into positive contact with a tapered bore of a spindle of the tool holder.

Rotary tapered tool holder

The invention relates to abrasive water jet systems comprising an abrasive water jet mixing tube having a longitudinal bore lined with a superhard material, including such systems which use cubic boron carbide (CBN), diamond, or other materials with a hardness greater than that of alumina as the abrasive material. The invention also comprises methods of using an AWJ system having a mixing tube having a longitudinal bore lined with a superhard material. Some embodiments include AWJ mixing tubes comprised of a plurality of connected components. Such connections may be disconnectable.

Superhard material article of manufacture

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Latrobe, PA, United States of America

Ted Richard Massa