Question

Consider the following statements:
During the third stage of tool wear, rapid deterioration of tool edge takes place because
1. Flank wear is only marginal
2. Flank wear is large
3. Temperature of the tool increases gradually
4. Temperature of the tool increases drastically
Which of the statements given above are correct?

• A. $1$ and $3$
• B. $2$ and $4$
• C. $1$ and $4$
• D. $2$ and $3$

Answer 1

The correct option is B $2$ and $4$

During the third stage of tool wear, rapid deterioration of tool edge takes place because
2. Flank wear is large
4. Temperature of the tool increases drastically