System and methods for rough grinding

Patent metadata

Field	Value
Publication number	US-9498865-B2
Application number	US-201414577632-A
Country	US
Kind code	B2
Filing date	Dec 19, 2014
Priority date	Dec 27, 2013
Publication date	Nov 22, 2016
Grant date	Nov 22, 2016

Abstract

A system and methods are provided for grinding a workpiece. In one embodiment, a method includes controlling rotation of a workpiece, wherein the workpiece is rotated relative to a first axis, and controlling grinding of the workpiece by a first grinding tool to shape the workpiece, wherein the first grinding tool is rotated relative to a second axis. The method may also include controlling grinding of the workpiece by the grinding tool and rotation of the workpiece to provide grinding of the workpiece with a generally constant surface footage.

First claim

What is claimed is:

1. A method for grinding a workpiece, the method comprising the acts of:
rotating a workpiece, wherein the workpiece is rotated relative to a first axis;
controlling grinding of the workpiece by a first grinding tool to shape the workpiece, wherein the first grinding tool is rotated relative to a second axis; and
controlling grinding of the workpiece by the grinding tool while maintaining a generally constant surface footage, wherein controlling grinding of the workpiece by a first grinding tool includes controlling the rotational angle and position of the grinding tool.

2. The method of claim 1 , wherein the workpiece is at least one of a high pressure turbine disk, high pressure compressor disk, side plate, cover plate, seal, impeller, gear, powder metal part, and alloy part.

3. The method of claim 1 , wherein the first axis is perpendicular to a central axis of the workpiece.

4. The method of claim 1 , wherein the first axis is along a central axis of the workpiece.

5. The method of claim 1 , wherein the grinding tool is one of a grinding wheel, superabrasive tool, and wherein the grinding tool has one or more grinding surfaces.

6. The method of claim 1 , further comprising a finishing grinding tool, wherein the finishing grinding tool is controlled to rotates about a third axis.

7. The method of claim 1 , wherein further comprising controlling a dressing tool for the grinding tool, wherein the dressing tool is applied to the grinding surface of the grinding tool.

8. The method of claim 1 , wherein the workpiece is a powdered alloy.

9. A grinding system comprising:
a machine tool configured to control rotation of a workpiece, wherein the workpiece is rotated relative to a first axis;
a first grinding tool configured for grinding; and
a control unit configured to control grinding of the workpiece by the first grinding tool to shape the workpiece, wherein the first grinding tool is rotated relative to a second axis; and
controlling grinding of the workpiece by the grinding tool to provide a generally constant surface footage, wherein controlling grinding of the workpiece by a first grinding tool includes controlling the rotational angle and position of the grinding tool.

10. The system of claim 9 , wherein the workpiece is at least one of a high pressure turbine disk, high pressure compressor disk, side plate, cover plate, seal, impeller, gear, powder metal part and alloy part.

11. The system of claim 9 , wherein the first axis is perpendicular to a central axis of the workpiece.

12. The system of claim 9 , wherein the first axis is along a central axis of the workpiece.

13. The system of claim 9 , wherein the grinding tool is one of a grinding wheel, superabrasive tool, and wherein the grinding tool has one or more grinding surfaces.

14. The system of claim 9 , further comprising a finishing grinding tool, wherein the finishing grinding tool is controlled to rotates about a third axis.

15. The system of claim 9 , wherein further comprising controlling a dressing tool for the grinding tool, wherein the dress tool is applied to the grinding surface of the grinding tool.

16. The system of claim 9 , wherein the workpiece is a powdered alloy.

Assignees

• United Technologies Corp

Inventors

• Rizzo Jr John P
• Beckman Micah

Classifications

• B24B53/047

  equipped with one or more diamonds · CPC title

• B24B19/14 Primary

  for grinding turbine blades, propeller blades or the like (using grinding belts B24B21/16) · CPC title

• B24B5/14

  for grinding conical surfaces, e.g. of centres · CPC title

• B24B53/04

  of cylindrical or conical surfaces on abrasive tools or wheels (B24B53/017 takes precedence) · CPC title