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