User:Figureindia

=Milling=

Milling is a machining operation carried out by the application of a multipoint cutting tool called Milling Cutter

Equipment
Milling Machine is one of the most common types of machine tools used in a conventional work shop. The exact period of origin of the Milling machine is not known. It is said that earliest milling machines were in existence during early 19th century.

Cutting Tools
The cutting tool used in milling is called as Milling Cutter the millin cutter is a multipoint cutting tool, usually a circular tool with multiple cutting edges formed on the periphery Most of the milling cutters are made of High Speed Steeel(HSS)

HSS consists of the following alloying elements
 * Tungsten
 * Cobalt
 * Vanadium

Cobalt is added to HSS for retaining hardness at high temperature