Sheet forming techniques are used to produce parts from sheet metal with a high surface area to thickness ratio. Common processes include bending, deep drawing, and shearing. Bending operations involve factors like bend radius, anisotropy, and springback. Deep drawing uses punches and dies to form flat sheets into shapes like cups with consistent wall thickness. Shearing separates metal using punches and dies, and burr height depends on factors like clearance and material ductility.