1-1_Machine_tools_and_instruments (1)

1.

MACHINE
TOOLS
AND
INSTRUMENTS

2.

A machine tool is a machine for handling or
machining metal

3.

Machine tools handle metals usually by
cutting, boring, grinding, shearing, or other
forms of deformations.

4.

Machine tools employ some sort of tool that does the cutting or
shaping.

5.

All machine tools have some means of
constraining the workpiece and
provide a guided movement of the
parts of the machine.

6.

Today machine tools are typically powered, e.g., electrically,
hydraulically, or via line shaft.

7.

Examples of machine tools are:
Broaching machine
Drill press
Gear shaper
Hobbing machine
Hone
Lathe
Honing Machine, etc.

8.

Machine tools can be operated manually, or under automatic control.

9.

Machine tools can be powered from a variety of sources.

10.

Today most machine tools are powered
by electricity; hydraulic and pneumatic
power are sometimes used, but this is
uncommon