Methods and apparatus for evaluating tool performance

• US 6,401,056 B1
• Filed: 12/27/1999
• Issued: 06/04/2002
• Est. Priority Date: 12/27/1999
• Status: Expired due to Fees

• Current Assignee: General Electric Company
• Original Assignee: General Electric Company
• Inventors: Sirois, Robert D.
• Primary Examiner(s): Hilten, John S.
• Assistant Examiner(s): Washburn, Douglas N
• Application Number:
  US09/472,693
• Time in Patent Office: 890 Days
• Field of Search: 395/500, 395/575, 395/500.36, 395/326, 364/424.06, 364/431.01, 364/551.01, 705/1, 702/34, 318/490, 340/680, 707/102, 371/16
• US Class Current: 702/184
• CPC Class Codes: G21C 17/00 Monitoring; Testing measuring in general G01; Maintaining
• CPC Class Codes: G21D 3/001 Computer implemented control
• CPC Class Codes: Y02E 30/00 Energy generation of nuclear origin
• CPC Class Codes: Y02E 30/30 Nuclear fission reactors

Abstract

A computer-implemented method for evaluating tool performance is described which includes maintaining tool history data in an electronic memory, updating the tool history data with tool servicing data, determining from the tool history and servicing data a predicted tool remaining useful life, and displaying the predicted useful life on a computer output device. Average tool data is compared to tool benchmark data to determine tool efficiency. Tool servicing, performance and efficiency data are maintained in a spreadsheet format. Data entered into one spreadsheet is used to update a plurality of spreadsheets. The spreadsheet format allows manufacturers to keep abreast of tool performance over time and in a plurality of locations and to anticipate tool rebuild and replacement requirements.

Claims

1. A computer-implemented method for predicting tool performance, said method comprising the steps of:

maintaining tool history data in an electronic memory;

updating the tool history data with tool servicing data;

determining from the tool history data and the tool servicing data a predicted tool remaining useful life; and

displaying said remaining useful life on a computer output device.

2. A method in accordance with claim 1 wherein the tool history data and the tool servicing data include average tool data and benchmark data, said method further comprising the step of comparing the average tool data to the benchmark data to determine tool efficiency.

3. A method in accordance with claim 2 further comprising the step of maintaining tool history data and tool servicing data for a plurality of locations.

4. A method in accordance with claim 3 further comprising the step of maintaining tool history data and tool servicing data in a spreadsheet format.

5. A method in accordance with claim 4 further comprising the step of analyzing punch and die performance.

6. A method in accordance with claim 4 further comprising the step of entering data into at least one spreadsheet to update a plurality of spreadsheets.

7. A method in accordance with claim 2 further comprising the step of determining future tool servicing requirements from the tool history data and the tool servicing data.

8. A method in accordance with claim 7 wherein the step of determining future tool servicing requirements from the tool history data and the tool servicing data comprises the step of applying safety margins to the tool history data and the tool servicing data.

9. A computer-based system for evaluating tool performance, said system comprising at least one computer configured to store tool history data and tool servicing data, said system configured to maintain the tool history data, update the tool history data with the tool servicing data and determine from the tool history data and the tool servicing data a predicted tool remaining useful life.

10. A system in accordance with claim 9 wherein the tool history data and the tool servicing data include tool performance data and benchmark data, said system further configured to compare the tool performance data to the benchmark data to determine tool efficiency.

11. A system in accordance with claim 10 further configured to maintain tool history data and tool servicing data for a plurality of locations.

12. A system in accordance with claim 11 further configured to maintain tool history data and tool servicing data in a spreadsheet format.

13. A system in accordance with claim 12 further configured to analyze punch and die performance.

14. A system in accordance with claim 12 further configured to update a plurality of spreadsheets from the data in at least one spreadsheet.

15. A system in accordance with claim 12 further configured to use the data in at least one spreadsheet to create at least one additional spreadsheet.

16. A system in accordance with claim 10 further configured to determine future tool servicing requirements from the tool history data and the tool servicing data.

17. A system in accordance with claim 16 wherein said system configured to determine future tool servicing requirements from the tool history data and the tool servicing data comprises being configured to apply safety margins to the tool history data and the tool servicing data.