What is Flap Peening Process?

Rotary flap peening (also called “flapper peening”) was first developed by 3M Corporation in the 1960s for U.S. Army helicopter field repair during the Vietnam war. Rotary flap peening is widely used in the aerospace industry today because it’s ideal for peening small areas on new or repaired parts. Rotary flap peening can also be done in the field, making the time-consuming and expensive disassembly and transportation of components unnecessary.

What are the advantages of Flap Peening?

1. It improves the material properties.
2. It provide convenient portability and are especially effective for precision in service rework.
3. It can also be cut with scissors to peen confined areas or peen into areas, and peening holes with a radius down to 1/16 “(1.6mm).

What are the applications of Flap Peening?

1. Landing Gear Assemblies
2. Wing Structures
3. Helicopter Rotor Hubs
4. Jet Engine Support Members
5. Bond Testing
6. Weld Heat Affect Zone