If n=number of strokes of the ram per minute or rpm of - Practice (English)

Cutting Parameters Machine Tools MatchingHard

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If n=number of strokes of the ram per minute or rpm of the bull wheel, l=length of the cutting stroke in mm, m= the ratio between return time to cutting time, then find the formula for cutting stroke.

Correct Answer: D — nl(m+1) / 100

Explanation:

(nl (m+1)) – It is the right formula for calculating the cutting speed.