Drawing

A term used for a variety of forming operations, such as deep drawing a sheet metal blank; redrawing a tubular part; and drawing rod, wire, and tube. The usual drawing process with regard to sheet metal working in a press is a method for producing a cup-like form from a sheet metal disk by holding it firmly between blank holding surfaces to prevent the formation of wrinkles while the punch travel produces the required shape. In metal forming, the stretch rig or compressing of a sheet metal part into a die by a punch to create a 3-dimensional part. The process of cold forming a flat pre-cut metal blank into a hollow vessel without excessive wrinkling, thinning, or fracturing.

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