nonstop
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Posts posted by nonstop
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What type of steel is it?
Where is the insert wearing the most? on the bottom cutting edge or the outside edge?
Can you use a solid carbide drill and then interpolate a flat bottom with an endmill?
its a 4140 4150 the bottom of the insert wears out. we tried increasing the feed but no luck.
do you know of a good company that will make a custom drill with a good insert? This is a very tough job,
this job has 10 slots which we use iscars helido high feed 1.5 dia mill at 680 rpm and 68 ipm at .04 doc
and it grinds the inserts down like nothing. these #s are the best results so far. The material has a case hardening of 52 to 54 rockwell .125 deep and 46 to 48 below that. I think because its cast theres xxxx in the casting that causes the problems.
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I need to drill 10 1.008 dia holes 2.4 deep in steel casting thats 52 54c. Now using a flat bottom indexable with through the spindle coolant at 750 rpms and a feed of 1.7 ipm. i get 2 holes per edge. Any suggestions on tooling or speeds and feeds would be appreciated. thanks
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if it post i and j then try switching your post for radius. i had the ame problem and that worked for me.
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I need to use as little g code as possible due to lack of memory.
When i post a surface finish contour it comes out with alot of xy points.
Is there a way to post continous arcs insted of a million xy points?
Matsuura MC – 600V
in Machining, Tools, Cutting & Probing
Posted
matsuura all the way, best machines ever. Used for medical and aerospace, accuracy is amazing!