Metal Manufacturing

Question 1

Explain metal turning

Answer 1

● Metal turning is done on a centre lathe also called a metal lathe.
● The metal piece is first secured in the chuck. A high-speed steel cutter held in the tool post moves left to right and towards the centre to shape the material to produce a symmetrical shape.
● The machine may also be a CNC controlled version which allows for greater speed and accuracy.

Question 2

Exlain sawing in metal manufacturing?

Answer 2

Sawing metals

Question 3

Explain the process if milling metal.

Answer 3

Milling is the machining process of using rotary cutters to remove material. It works in a similar way to routering but, due to the harder materials being cut, milling machines have greater torque and use more durable cutting tools.

Question 4

Explain drilling in metals and state what machines are usually used.

Answer 4

● Drilling holes in metal is usually carried out using a pillar drill (drill press) and bit or milling machine with a slot drill.
● In industrial situations jigs and fixtures are used to improve accuracy and speed.
● High speed steel (HSS) twist drill bits are used to drill metals.

Question 5

What is another way of cutting metal?

Answer 5

Cutting and shearing.