Peen Forming Of Sheet Metals

Shot peen forming is a manufacturing process in which local compressive residual stresses form thin sheet metals and structural components in one or more dimensions.

Peen forming of sheet metals.

It is commercially important despite the fact that its mechanisms are not fully understood. It is an ap plication of shot peening and uses deformations geneated r by impacts of shots thrown to a sheet metal. A similar sheet metal forming process which is called peen forming has already been developed 8. The process parameters can be adapted as required to take account of component features such as varying sheet strengths stringer stiffeners thickened edges pockets and cut outs.

Flexibility peen forming is an incremental forming process which has no defined limits regarding the size or strength of sheet metal components. Dead blow ball peen hammers these hammers have a head loaded with metal shot for added weight and a controlled impact with minimal rebound. And some sand paper to smooth out the edges. This article discusses the principle of the process with an emphasis on fundamental mechanisms.

Also known as body and fender tools these hammers are excellent for forming and repairing dents in sheet metal components. L aser bending is a non contact forming method for sheet metals in which the sheet metal can be bent shaped and precision aligned with the use of straight or curved laser scan lines to acquire desirable three dimensional 3d features. It tends to expand the surface of the cold metal thereby inducing compressive stresses. The peen forming process not requires any die and forming press.

Something like a sharpie to mark on the sheet metal. It is therefore particularly suitable for complex aerostructures. During the operation blanks are clamped over simple form blocks. These features would be difficult or even impossible to manufacture using conventional metal forming techniques.

Shot peen forming is a production process used to create curved metal parts from sheet. Its nonthermal process makes it possible to form sheet metal without material degradation or even improve them by inducing compressive stress over the target surface. It is flexible and independent of tool inaccuracies that result from wear and deflection. Something to cut the metal like sheet metal shears or tin snips.

I used a 16 oz. You may want a smaller hammer for small shapes or a larger hammer for larger shapes. A ball peen hammer. Laser peen forming is a purely mechanical forming method achieved through the use of laser energy to form complex shapes or modify curvatures.

The ball forced by compressed air or rotating blade.