Process for determining optimum grinding conditions
AssigneeNorton Company
InventorsAnthony C. Gaeta, Paul Wei, Gwo Shin Swei, Thomas G. Kinisky
Life of this patent
Estimating the term…
Abstract
The invention provides a useful tool for advising customers for abrasive tools on the selection of optimum grinding conditions for the use of a specific tool wherein the tool is in the form of a performance map generated from a plurality of data points obtained by measuring performance for a plurality of combinations of the two key grinding process variables.
Claims8
A process for identifying optimum grinding conditions for the use of a specific grinding tool which comprises:
- a) operating a grinding machine incorporating a specific grinding tool on a specific substrate at a first set of two process variables and generating data relating to grinding performance under such process variables;
- b) measuring the grinding performance data of the grinding tool under said first set of two process variables;
- c) repeating steps a) and b) at a plurality of further different sets of said two process variables;
- and
- d) using the grinding performance data to generate a topographical map identifying the combinations of said process variables in which optimum grinding performance results were obtained.
A process for generating a comparative performance map for two abrasive tools which comprises:
- a) operating a grinding machine incorporating a first grinding tool on a specific substrate at a first set of process variables so as to generate data relating to grinding performance under such process variables;
- b) measuring the grinding performance data of the grinding tool under said first set of process variables;
- c) repeating steps a) and b) at a plurality of further sets of different vales of the same process variables;
- d) repeating steps a) through c) with a second tool and generating a ratio of grinding performances for first and second grinding tools at each of the further sets of process variables selected in step c);
- and
- e) generating a comparative performance map showing the ratios of performances of the first and second grinding tools at a range of conditions.
A product performance indicator in which a range of performance levels are visually displayed in the form of a topographical map obtained by:
- a) operating a grinding machine incorporating a specific grinding tool on a specific substrate at a first set of process variables so as to generate data relating to grinding performance under such process variables;
- b) measuring the grinding performance data of the grinding tool under said first set of process variables;
- c) repeating steps a) and b) at a plurality of further sets of different values of the same process variables;
- and
- d) computer-generating from the grinding performance data at such further sets of different values of same process variables a product performance indicator in the form of a topographical map identifying the combinations of process variables in which optimum grinding performance results were obtained.
A product performance indicator in which a range of performance levels are visually displayed in the form of a topographical map obtained by:
- a) operating a grinding machine incorporating a first grinding tool on a specific substrate at a first set of process variables so as to generate data relating to grinding performance under such process variables;
- b) measuring the grinding performance data of the grinding tool under said first set of process variables;
- c) repeating steps a) and b) at a plurality of further different sets of process variables;
- d) repeating steps a) through c) with a second tool and generating a ratio of grinding performances for first and second grinding tools at each of the different sets of process variables;
- and
- e) generating a comparative performance map showing the ratios of performances of the first and second grinding tools at a range of process variables.
Dependencies are inferred from the claim text.