- Joined
- Mar 5, 2012
- Messages
- 161
I made a shaft collar out of mild steel and need to cut a slot in it. This is part of a bending jig with the following dimensions: 1.5 inch OD, 5/15 ID and 3/4 inch thick. The slot needs to be 1/8 inch wide. I attempted to cut the slot on the mill using a 1/8 inch 4 flute end mill, but broke 2 of them. Spindle speed ~ 230, feed was very slow and depth of cut was only a couple thousands each pass. The first end mill broke after I got about 1/4 inch deep. The second one broke on the very next pass. I suspect that they were binding on the 'walls' of my cut. I'd like to try a slitting cutter, but have no idea what to buy. Would appreciate any thoughts.
Thanks
Jim
Thanks
Jim