cutter breakage

[Highpower]

(02-15-2015, 04:37 PM)how Wrote: I can follow why too slow a feed might lead to  heat and blunting of cutter but too slow a speed leading to snapping?

Moral of story- don't rush especially when engaging auto feed. My mill can autofeed the table up as well as cross feed.

(02-15-2015, 05:28 PM)DaveH Wrote: If the cutter is not spinning (ie stationary) with a depth of cut and the work piece is fed into the cutter something is going to break. Which is why your cutter broke the spindle speed wasn't fast enough for the the feed.

So spindle speed is important with respect to the feed.


 
DaveH

As is the spindle direction. 

Don't rush indeed, and don't ask me how I know....