New to CNC milling aluminum.
Really basic questions.
Will a square and round end mill plunge cut the same, or is one cleaner/ faster?
Do they have similar too lifetime?
Milling a pilot hole for m5 threading (thread mill).
How big should the pilot hole be, or where can I look it up?
Same question with machine tap, m5.
Where can I learn hot to do a machine tap with blind hole?
What type of tool(s) can be used with an m5 tap in a blind hole?
(I have only done hand taps)
I want to mill a number of thru holes in a 3/4" bar (20mm), and it seems most end mills wont cut that deep.
Holes vary from 1.8mm to 6.4mm (about 1/16" to 1/4").
Suggestions?
Do square end mills cut on edges as well as end? I see the fluted part as "length of cut", but I'm
not sure if that means the fluted edge also cuts, or if the length is how deep chip removal works.
To avoid tool changes, I was planning to use a smaller diameter square end mill, like 4mm, and circle it to make a 6mm hole.
I assume thats no different than grooving with an end mill. Is it better to do shallow circles, or plunge full depth and do a slow circle?
or does it matter?
I find "SFM" as a "speed" limit, like 350 sfm for aluminum.
My desktop mill goes to 11,000 rpm. The sfm to rpm computation I saw for aluminum
gives much higher speed for small diameter end mills, like 1mm and 2mm than
my mill can go. Is running slower rpm ok as long as i run slower feed?
Where can I learn about milling small deep holes in aluminum?
Sizes like 6mm by 18mm deep, m5 threaded by 7mm deep, 1.8mm by 11mm deep.
Yep, pretty novice questions...
If anyone can answer 1 or 2 or more, thanks!
newbee