manufacturing: machining

Which of the following operations is generally capable of the closest tolerances?

Broaching

Which of the following carbide graes are steel-cutting grades

C5-C8: WX-Co with TiC and/or TAC alloys

Of the following cutting conditions, which one has the greatest effect on tool wear:

Cutting speed

An increase in cobalt content has which of the following effects on WC-Co cemented carbides (two best answers): (a) decreases hardness, (b) decreases transverse rupture strength, (c) increases hardness, (d) increases toughness, and (e) increases wear resistance?

Deceases hardness and increases toughness

Which of the following metals would usually have the lowest energy requirement in machining operations?

aluminum alloys

Which of the following cutting conditions has the strongest effect on cutting temperature

cutting speed

Which one of the four types of chip would be expected in a turning operation conducted at low cutting speed on a brittle work material

discontinuous

Which of the following tool materials have the highest toughness

high speed steel

As an alloying ingredient in high-speed steel, tungsten serves which of the following functions?

improves strength and hot hardness, forms hard carbides disperses in the tool material

Which of the following cutting edge geometries is most suitable for ceramics cutting tools

negative with land and hone

Which of the following manufacturing processes are classified as material removal processes

Grinding and machining

When cutting a ductile work material, an increase in cutting speed will generally (a) degrade surface finish, which means a higher value of Ra or (b) improve surface finish, which means a lower value of Ra?

degrade surface finish, which means a high values of R sub a

Which of the following tool materials have the highest hardness,

polycrystalline diamond

Which of the following are the two main functions of a cutting fluid in machining

reduce forces and power consumption, remove heat from process