Milling Cutters

Question 1

1. Name two materials used to make milling cutters

Answer 1

High-speed steel
Cemented carbide

Question 2

Name five elements that may be added to iron or steel to produce high-speed steel

Answer 2

Tungsten
Chromium
Vanadium
Molybdenum
Cobalt

Question 3

Advantages and Disadvantages of cemented-carbide tools

Answer 3

Advantages:
Very hard and wear resistant
Can cut materials at higher speeds

Disadvantages:
Brittle and can break under shock or heavy loads

More expensive than high-speed steel tools

Question 4

Describe three types of plain milling cutters and explain their uses

Answer 4

Slab Mill - Used for large surface milling

Face Mill - Cuts flat surfaces on the top of a workpiece

End Mill - Cuts slots, contours, and complex shapes

Question 5

Three Types of Side Milling Cutters and state when each is used

Answer 5

Half-side milling cutter - Used when only one side of the cutter is required

Staggered Tooth Cutter - Reducing cutting load for heavy cuts

Interlocking Cutter - Used for grooving and slotting

Question 6

Two ways in which formed cutters differ from plain milling cutters

Answer 6

Have specific shapes for specialised cuts

Designed to cut profiles or contours

Question 7

What advantage does a two-flute end mill have?

Answer 7

Better chip clearance, making ideal for cutting softer materials and deeper cuts