Gang milling: Simultaneous machining of a number of flat horizontal and vertical surfaces of a workpiece by using a combination of more than two cutters mounted on a common arbor.
Form milling: Machining of surfaces which are of irregular shape. The teeth of the form milling cutter have a shape which corresponds to the profile of the surface to be produced.
Straddle milling: Simultaneous machining of two parallel vertical faces of the work-pieces by a pair of side milling cutters.
Angular milling: Machining of a flat surface at an angle, other than a right angle, to the axis of revolving cutter.
Face milling: Machining of a flat surface which is at right angles to the axis of the rotating cutter.
Plain or slab milling: Machining of a flat surface which is parallel to the axis of the rotating cutter.
MILLING MACHINE
Introduction: Milling is the cutting operation that removes metal by feeding the work against a rotating, cutter having single or multiple cutting edges. Flat or curved surfaces of many shapes can be machined by milling with good finish and accuracy. A milling machine may also be used for drilling, slotting, making a circular profile and gear cutting by having suitable attachments.