31) Milling cutters are manufactured generally from two materials to give them the required hardness and toughness. Which one of the following is used for this purpose ?

Cast iron and plastic

High speed steel and carbides

Mild steel and stainless steel

Carbon steel and nickel steel

Answer is:

High speed steel and carbides

Generally slitting saws are keyed with the arbor

Slitting saws are used with normal speed and feed like other cutters

In a 45 Degree single angle cutter, 45 Degree is the angle between the axis of the cutter and the slant cutting edge

Dovetail guideways can be milled by using a shank type single angle cutter

Answer is:

A convex milling cutter is used for milling concave surfaces

The profile of form milling cutter changes after re-sharpening its face

A corner rounding cutter may have teeth either on one side or on both sides

Concave milling cutter is used for producing concave surfaces

Answer is:

Less than the diameter of parallel shank

More than the diameter of parallel shank

Equal to the diameter of parallel shank

Equal to the size of the cutter

Answer is:

10.55 m/min.

11.00 m/min.

21.10 m/min.

22.00 m/min.

Answer is: