Chapters 14 - 15 Flashcards
1
Q
Softens metal
A
Tempering
2
Q
Tempering
A
Reheating a steel to a temperature below its lower transformation temperature and cooling it at any rate to increase the ductility and toughness of the steel.
3
Q
Drawing
A
Tendency of tempering to draw back the hardness of steel.
4
Q
Purpose of tempering
A
To increase ductility and reduce internal stress
5
Q
Standard temperature range used to temper metals
A
300 - 1200F
