SkeeterWeazel
Plastic
- Joined
- Apr 20, 2021
Beginner CNC machinist here. Trying to cut 1/8" slots in 1/8" cold rolled steel. Not going well.
Using 4 flute carbide EM, 1/4" flute length. 4000 RPM, .042 DOC, .0003 feed/tooth. Based on info from Harvey tool site.
I can ramp in OK, but attempt today the cutter broke after about a 1/4" into slot.
Thinking i need to reduce the DOC. Even with the small feed/tooth the cutter may be loading up? I'm using a mist cooler.
I've had some success with a 3 flute. Maybe it was just luck. Thinking 4 flute should be stronger.
Please give me your suggestions.
Thx.
Marty
Using 4 flute carbide EM, 1/4" flute length. 4000 RPM, .042 DOC, .0003 feed/tooth. Based on info from Harvey tool site.
I can ramp in OK, but attempt today the cutter broke after about a 1/4" into slot.
Thinking i need to reduce the DOC. Even with the small feed/tooth the cutter may be loading up? I'm using a mist cooler.
I've had some success with a 3 flute. Maybe it was just luck. Thinking 4 flute should be stronger.
Please give me your suggestions.
Thx.
Marty