Hi all group, having to come in through google as the news server I
normally use now requires a password?
Anyway, trying to mill a block of commercial grade steel, EN3 I think!
The mill I am using is a 1/8 Inch shank slot mill and have now managed
to break 4 (2 short and 2 long shank).
I have to plunge down into the steel, fine no problems, and then do a
the first pass at depth, snap goes the mill.
Now I did not consider that I was asking too much but must be, depth
2mm, feed 37.5 mm per minute and speed fastest I can go at 1600 rpm.
That gives a load per flute of 0.0004 thou. Sorry to work in both
metric and imperial but I do that at times.
Can anyone let me know if the figures are way out and what should I be
running at. I can take the depth down to 1 mm.
Cutters are Clarkson and have a 46.51 lead which I guess is the spiral
in the flutes in case I am using the wrong cutters as supplied.
Thanks in anticipation
17 years ago