Plastic and nonmetallic article shaping or treating: processes – With measuring – testing – or inspecting
Patent
1992-04-07
1993-09-21
Heitbrink, Jill L.
Plastic and nonmetallic article shaping or treating: processes
With measuring, testing, or inspecting
264 405, 264 406, 425135, 425143, 425149, B29C 4576
Patent
active
052466442
ABSTRACT:
The critical dimensions of product samples made during a standard certification procedure for an injection molding process are measured and a loss factor value is computed for each such dimension. Using statistical techniques, the largest loss factor value is partitioned into percentages of loss contributed by a predetermined set of loss elements. The loss element contributing the largest percentage is corrected so as to improve the quality of the process and the product. The method provides a way of determining what kinds of process corrections will most effectively improve product and process quality.
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"Molding Process is Improved by Using the Taguchi Method", Author: Warner, J. C., published in Modern Plastics, vol. 66, No. 7, 1989.
Dupin Michael W.
Wenskus, Jr. James J.
Eastman Kodak Company
Heitbrink Jill L.
Heslin Robert E.
Levitt Joshua G.
Snee, III Charles E.
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