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03-09-2013 #1
Hi,
I am trying to drill 500 off 2.395mm dia holes in an ali casting but the drill I am using keeps building up with swarf on the drill flutes after just one hole has been drilled.
I am using a special sphinx drill for this job but would like some help with why the drill is building up with swarf.
I am using a horizontal milling machine to do this job and I have tried the following speeds and feeds
S10000 F600
S10000 F400
S6000 F300
I am using G83 peck cycle with pecks on 3.5mm and the hole is 10mm thru.
I have also tried using thru spindle coolant and still no luck.
Any help would be appreciated.
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