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WorksheetsChapter 22 - Cutting Tool Technology
Total questions: 10
Worksheet time: 8mins
Of the following cutting conditions, which one has the greatest effect on tool wear
cutting speed
feed
depth of cut
As an alloying ingredient in high-speed steel, tungsten serves which of the following functions (two best answers)
forms hard carbides to resist abrasion
improves strength and hardness
increases corrosion resistance
increases hot hardness
increases toughness
Cast cobalt alloys typically contain which of the following main ingredients (three best answers)
aluminum
cobalt
chromium
steel
tungsten
Cast cobalt alloys typically contain which of the following main ingredients (two best answers)
Al2O3
Co
CrC
TiC
WC
An increase in cobalt content has which of the following effects on WC-Co cemented carbides (two best answers)
decreases hardness
decreases transverse rupture strength
increases hardness
increases toughness
increases wear resistance
Steel-cutting grades of cemented carbide are typically characterized by which of the following ingredients (three correct answers)
Co
Fe
Ni
TiC
WC
If you had to select a cemented carbide for an application involving finish turning of steel, which C-grade would you select (one best answer)
C1
C3
C5
C7
Which of the following processes are used to provide the thin coatings on the surface of coated carbide inserts (two best answers)
chemical vapor deposition
electroplating
physical vapor deposition
pressing and sintering
spray painting
Which one of the following materials has the highest hardness
aluminum oxide
cubic boron nitride
high-speed steel
titanium carbide
tungsten carbide
Which of the following are the two main functions of a cutting fluid in machining (two best answers)
improve surface finish on the workpiece
reduce forces and power
reduce friction at the tool-chip interface
remove heat from the process
wash away chips
