NASA Center: Johnson Space Center
Public Release Year: 1986
Reference Number: JSC-SO-116
Origin: NASA Research for Eliminating Metal Fatigue
When rapid oscillation of blanket wearing looms at Chatham Manufacturing Company caused significant metal fatigue, the company turned to NC/STRC for a NASA data bank computer search. The search pinpointed tensile stress, and suggested a built-in residual compressive stress as a solution. Shot peening bombarding a part with a high velocity stream of very small shot to pound and compress the part&apos;s surface, was found to be the only practical method for creating compressive stress. The method has been successful and the company estimates its annual savings as a quarter million dollars.
Page Number in Published book: 86-87
Manufacturer: Chatham Manufacturing Company