question_answer

Consider the following statements:

In Up milling process,

1. The cutter starts the cut from the machined surface and proceeds upwards

2. The cutter starts the cut from the top surface and proceeds downwards

3. The job is fed in a direction opposite to that of cutter rotation

4. The job is fed in the same direction as that of cutter rotation.

Of these statements:

A) 1 and 3 are correct         

B) 1 and 4 are correct

C) 2 and 3 are correct         

D) 2 and 4 are correct