Milling a dovetail on carbon steel

Milling a 60 deg. 7mm high dovetail on carbon steel. A hard steel that can be oil hardened. When dovetail milling, instead of the usual needle swarf, the swarf is granular, like cast iron. The cut was set to 0.2 mm per pass until half the depth was reached, then successive cuts were 0.1 mm, all done with conventional milling. The final cut (0.04mm) was made with climb milling in order to give the smoothest finish.
The coolant is a modified oil seed rape oil, that can also be used as mist coolant, being non-hazardous.

Category:

Science & Technology

Tags:

• Dovetail milling
• carbon steel
• metal milling

[EMCOcompact]

What mini-rpm do tool requieres?

[mparkerlisberg]

@EMCOcompact The cutter is running at 500 rpm. Forget SFM on a small mill, run at the speed so that the machine does not complain and you are comfortable with. SFM ratings are for the production environment.

Malcolm

[mparkerlisberg]

John

I have pictures of the vertical milling slide I made for the 7X xx but I can't find your email on your blogspot and I am not a YouTube friend as a message was rejected when sent.

Malcolm

[ROCKNTV1]

stopping in to say hi, thin a up and coming project for me will be a milling attachment for my 7x14, thnx for the vid