given diameter 25mm half of the drill point angle =60 cutting velocity=44000mm/minute length=60mm feedrate=0.25mm/revolution determine the time needed to drill a through hole


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Question Number 63682 by Annmuema last updated on 07/Jul/19

$g i v e n d i a m e t e r 25 m m$ $h a l f o f t h e d r i l l p o i n t a n g l e = 60$ $c u t t i n g v e l o c i t y = 44000 m m / m i n u t e$ $l e n g t h = 60 m m$ $f e e d r a t e = 0.25 m m / r e v o l u t i o n$ $d e t e r m i n e t h e t i m e n e e d e d t o d r i l l a t h r o u g h h o l e$
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