Deep Draw Forming Methods

Beading: Shifting material to produce diameters that are either smaller or larger than the part’s original size.

Bulging: Pressurizing a section of the component to expand its diameter beyond the original form.

Coining: Moving material to shape specific features on the component.

Curling: Rolling the metal using a curling die to create a rounded, rolled edge.

Extruding: After drilling a pilot hole, a large-diameter punch is pushed through, extending the metal’s length.

Ironing: Reducing the thickness of the component’s walls. 

Necking: Shrinking a specific section of the component to a diameter smaller than the rest of the part.

Notching: Cutting a notch—round, square, or another shape—into the open end of the part.

Rib Forming: During the drawing process, this method creates either outwardly or inwardly projecting ribs on the part.

Side Piercing: Drilling holes in the sidewall of the drawn component; the hole shape is determined by the component’s requirements.

Stamping: Most frequently used to add identifying marks to the part, such as a supplier’s name or product number.

Threading: Creating threads on the component using a wheel and arbor.

Trimming: Removing excess metal that was required during the drawing process from the finished component.