Search results for Hill Engineering blog posts containing the tag cold expansion
by Camille Fowler
In a recent production deployment, the Integrated Maintenance System (IMx+) system was utilized during the A-10 Fuselage Modification, affectionately nicknamed Hogback. During this structural modification, over 500 holes are inspected along the upper longeron, a critical component of the aircraft. Continue reading IMx+ system deployment for A-10 Hogback
by Robert Pires
Cold hole expansion (Cx or cold expansion for short) of fastener holes is a technique that has been widely used in the aircraft industry to improve the fatigue performance of structural components. The cold hole expansion process introduces compressive residual stress near the vicinity of the hole that slows crack growth and can significantly improve fatigue performance. Continue reading Case Study: cold hole expansion process modeling