Which of the following statement is wrong?
A. The larger side rake angle produces chipping
B. The smaller rake angle produces excessive wear and deformation in tool
C. The side cutting edge angle (less than 15°) increases tool life
D. The increase in nose radius decreases tool life
Answer: Option D
This Question Belongs to Mechanical Engineering >> Manufacturing And Production Technology
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The carbide tools operating at very low cutting speeds (below 30 m/min)
A. Reduces tool life
B. Increases tool life
C. Have no effect on tool life
D. Spoils the work piece
The type of reamer used for reaming operation in a blind hole, is
A. Straight fluted reamer
B. Left hand spiral fluted reamer
C. Right hand spiral fluted reamer
D. Any one of these
High speed steel tools retain their hardness up to a temperature of
A. 250°C
B. 350°C
C. 500°C
D. 900°C
Nose radius increase tool life increase