They use the end of the tool to cut instead of the periphery which beneficially changes the cutting forces from a predominantly radial to axial direction.
Plunge cut with ball end mill.
Keep in mind that end mills are meant to cut from the side whereas drills are meant to cut vertically.
You can not plunge an end mill into material like you would a drill bit.
Ball end mills also known as ball nose end mills are used for milling contoured surfaces slotting and pocketing.
Plunge rate this is the speed at which the bit enters the wood.
For most woods i usually set the plunge rate to 10 mmsec or less.
1 1 2 cut diam 0 118 max depth of cut 1 1 4 shank diam indexable plunge end mill straight shank uses htp lnht 1006 insert style htp ln10 toolholder style through coolant.
This is due to cutting flutes that extend to and protrude from the end face and enable plunge cutting.
High quality 2 flute slot drills up cut and down cut end mills.
Compression end mills combine the best of both worlds and produce a smooth surface on both ends of the workpiece when cutting.
So what type of end mills do you require for general milling applications.
Additionally most mills are center cutting meaning they are able to cut both axially and laterally.
To minimize tool breakage and stress on the material being cut most cnc software will ramp the end mill slowly into.
Plunge milling operations vary considerably from traditional milling.
How to apply plunge milling operations cutting process.
It can be compared to a boring operation with interrupted cuts.
Starter pack end mills.