HERMINE KOUAME TRAINER IN ELECTRO-MECHANICAL modul 3:THE MILLING MACHINE I . THERMINOLOGY The milling machines are machine tools used to machine parts by removing material using a tool called a milling cutter. A milling machine can also perform drilling , tapping and boring operations. The movements of the axes are controlled by mechanical, electrical or other devices. The spindle drives the cutter to rotate ,and the lead screw drives the worktable to move left and right , up and down , to process the required shape. The milling machine processing range is very wide , can process horizontal plan , vertical surface , keyway , T slot , gear , spline shaft , pinion , the spiral surface , etc… Thanks to the rotating milling head , multi-angle machining can be performed. instructions1. Security For a better use of the machine it is necessary to espect some instructions to work better and to avoid work accidents which can cost life .