Cold Form Rolling

Cold Form Rolling uses the mechanism of deformation and material yielding under rotation between dies. The form and shape of the dies is imparted onto the circumference of a blank or shaft of material to be transformed.

This process is most commonly applied in the rolling of threads for fasteners, this produces threads of high strength and integrity, as material grain flow within the peaks of the thread provide advantageous strength and fatigue limiting properties.

The rolling of more complex forms such as splines and gears is also possible, once again imparting material and surface properties which are highly beneficial for an application where repeated cyclic loading and high surface to surface contact exist.

Die Forms or Rolls are made from extremely hard, but low friction materials, enabling the deformation of the blank material to happen without deforming the rolls or dies. The dies are progressively pressed against the blank or workpiece to steadily deform the blank into the required shape.

• • Thread Rolling
• • Spline & Gear Rolling