Machine-building( Machine tools)

Complete the following sentence

Machine tools are used....

• are now electrically driven

• to shape metals and other materials

• drilling using ultrasound, and cutting by means of a laser beam

• for cooling and lubrication

Milling machine ....

• cuts flat metal surfaces

• changes the shape of a workpiece

• uses a twist drill to make holes

• enlarges and finishes a hole

A machine tool that changes the shape of a workpiece is...

• band saw

• grinding machine

• press

• lathe

Choose the correct statement

• Shapers remove excessive material from parts

• Milling machines remove excessive material from parts

• Grinding machines remove excessive material from parts

• Drilling machines remove excessive material from parts

Choose the correct statement

• Milling machines may be only digitally automated operated

• Milling machines may be manually operated or mechanically automated

• Milling machines can only be manually operated

• Milling machines may be manually operated, mechanically automated, or digitally automated via computer numerical control (CNC)

......is the largest of the reciprocating machine tools

• the shaper

• the planer

• grinders

• the milling machine

.....remove metal by a rotating abrasive wheel

• Grinders

• Drilling machines

• Milling machines

• Planers