Browse Publications Technical Papers 2000-01-3020
2000-09-19

High Speed Carbide Drilling in Aluminum 2000-01-3020

Implementation of a high speed drill motor with solid carbide drill bits, along with careful attention to all details of the process, has resulted in an extraordinary increase in drill bit life, as well as improvements in cycle time and hole quality. During the implementation of a new wing panel riveting machine for use on the 737NG and 757 models a major goal was to significantly improve the drilling process. The phase out of Freon™ as a coolant/lubricant on existing machines forced changes to the drilling process, which resulted in a significant reduction in drill life, from an average of approximately 1,500 holes per drill to 305 holes. The new process on the new machine has increased the average drill life 11,375% to over 35,000 holes, decreased the drill cycle time by 80%, and improved hole quality.

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