Damper for machining processes
AssigneeUnited Technologies Corporation
InventorsWendell V. Twelves, Jr., Krzysztof Barnat
Life of this patent
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Abstract
A damper includes a damper body that is configured to be attached to a workpiece during a machining process. A first side of the damper body is configured to abut a first side of the workpiece. The damper body includes a frame forming an outer periphery of the damper body, a plurality of damper nodes with a cavity in each damper node positioned in the frame, and a plurality of ribs extending between the frame and the damper nodes. A damping material is positioned in the cavity of each damper node.
Claims20
A damper comprising:
- a damper body that is configured to be attached to a workpiece during a machining process, wherein a first side of the damper body is configured to abut a first surface of the workpiece, and wherein the damper body further comprises:
- a frame forming an outer periphery of the damper body;
- a plurality of damper nodes with a cavity in each damper node positioned in the frame;
- and
- a plurality of ribs extending between the frame and the damper nodes;
- and
- a damping material positioned in the cavity of each damper node.
A machining system comprising:
- a machine having a first clamp, a second clamp, and a cutting tool;
- a workpiece positioned in the machine, wherein a first end of the workpiece is held in the first clamp of the machine and a second end of the workpiece is held in the second clamp of the machine;
- and
- a damper attached to the workpiece, wherein the damper comprises:
- a damper body with a first surface that abuts against and conforms to the workpiece, wherein the damper body has a frame forming an outer periphery of the damper body, a plurality of damper nodes with a cavity in each of the damper nodes, and a plurality of ribs extending from the frame to the damper nodes;
- and
- a damping material positioned in the cavity of each damper node.
A method of machining a workpiece comprises:
- positioning a workpiece in a machine;
- rough machining the workpiece;
- attaching a damper to the workpiece, wherein the damper has a damper body with a first surface that abuts against and conforms to the workpiece, wherein the damper body has a frame forming an outer periphery of the damper body, a plurality of damper nodes with a cavity in each of the damper nodes, and a plurality of ribs extending from the frame to the damper nodes;
- finish machining the workpiece;
- and
- damping vibrations in the workpiece with a damping material in the damper nodes of the damper.
Dependencies are inferred from the claim text.