3M TC330 - Roto Peen Flap Assembly
3M™ Roto Peen Flap Assembly, made with a flap and mandrel, was designed using captive shot-flap technology. To create this unique and portable assembly, we adhered tungsten carbide shot to flexible flaps using high-strength resin. Two flaps are bonded together with a special adhesive for easy placement in a flap mandrel. Peening, a cold working process for metal, applies repeated stress to the material's surface and strengthens it through compression. The peening method helps improve the material's ability to resist fracture, fatigue and stress corrosion cracking. In traditional shot peening methods, the work surface is sprayed with cast steel shot. While this method is also effective, it has a tendency to dirty the operator’s environment by releasing debris. Additionally, the tools required for this method limit the spaces where an operator can peen.
Product Description
3M™ Roto Peen Flap Assembly, made with a flap and mandrel, was designed using captive shot-flap technology. To create this unique and portable assembly, we adhered tungsten carbide shot to flexible flaps using high-strength resin. Two flaps are bonded together with a special adhesive for easy placement in a flap mandrel. Peening, a cold working process for metal, applies repeated stress to the material's surface and strengthens it through compression. The peening method helps improve the material's ability to resist fracture, fatigue and stress corrosion cracking. In traditional shot peening methods, the work surface is sprayed with cast steel shot. While this method is also effective, it has a tendency to dirty the operator’s environment by releasing debris. Additionally, the tools required for this method limit the spaces where an operator can peen.Key Features
- Flap/mandrel assembly is portable for added convenience
- Tungsten carbide shot is bonded to the flaps, providing a cleaner peening method than loose shot "blasting"
- Available in three flap sizes for both small and large surface areas
- Especially effective for precision in-service rework, manufacturing, repair of small areas, and peening holes
- Imparts a compressive residual stress that benefits the material by strengthening its durability