Non-ferrous alloys used for making cutting tools need not have high__________________?
Correct answer: B. Toughness
- A. Abrasion resistance
- B. Toughness
- C. Red hardness
- D. Cutting speed
Explanation
Cutting-tool materials must resist abrasion and retain hardness at high temperature, known as red hardness. Very high toughness is not essential for non-ferrous tool alloys, although sufficient toughness is needed to avoid brittle failure.
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