Machine tool

Machine?:

By means of a machine an applied force is increased, its direction is changed electronics, or one form of motion or energy is changed into another form. Thus defined, such simple devices as the the, the, the , and the are machine

They are called simple machine electronics; more complicated machines are merely combinations of them. Of the five, the lever, the pulley, and the inclined plane are primary; the wheel and axle and the screw are secondary. The wheel and axle combination is a rotary lever, while the screw may be considered an inclined plane wound around a core. The is a double inclined plane

Complex machines are designated, as a rule, by the operations they perform; the complicated devices used for sawing, planing, and turning, for example, are known as sawing machines, planing machines, and turning machines respectively and as collectively.

Machines used to transform other forms of energy as heat into mechanical energy are known as engines,  the  or the. The electric  transforms electrical energy into mechanical energy. Its operation is the reverse of that of the electri, which transforms the energy of falling water or steam into electrical energy.

What is a Simple Machine?:

  

Is performed by applying a  over a distance. These simple machines create a greater output force than the input force; the ratio of these forces is the mechanical advantage of the machine. All six of the simple machines have been used for thousands of years, and the physics behind several of them were quantified by. These machines can be used together to create even greater mechanical advantage, as in the case of a bicycle.

machine tool, power-operated tool used for finishing or shaping metal parts, especially parts of other machines. An establishment that is equipped with such tools and specializes in such work is known as a machine shop. Machine tools operate by removing material from the workpiece, much as a sculptor works. Basic machining operations are:

(1) Turning, the shaping of a piece having a cylindrical or conical external contour; 

(2) Facing, the shaping of a flat circular surface; (3) milling, the shaping of a flat or contoured surface;

(4) Drilling, the formation of a cylindrical hole in a workpiece;

(5) Boring, the finishing of an existing cylindrical hole, as one formed by drilling;

(6) Broaching, the production of a desired contour in a surface