Method of Strengthening and Repairing Damaged Threads

Author:  Woloszyn, George
Source:  Canadian Patent 2 127 062
Doc ID:  2007040
Year of Publication:  2007
Abstract:  
A method of strengthening and repairing damaged threads. Firstly, remove metal buildup from the damaged threads. Secondly, peen the damaged threads using glass beads. The glass beads are not less than .02 of an inch and not more than .03 of an inch in diameter. They are projected substantially at right angles to the damaged threads at pressures of not less than 80 and not more than 110 pounds per square inch. This method is particularly suited for repairing threads that still gauge properly.