Not sure you could really call this high speed but I figured I would ask the question. I've been asked to quote a larger than usual job of 100 pcs in 6061. Normally I would pass but the geometry seems pretty simple and I could run these in batches.
Attached is a picture of the batch, it will fit nicely on a 8in X 16in plate. The parts are 1in tall and spaced evenly at .625" between parts. The customer is flexible with part modifications required for tooling fixtures. I work with SprutCAM 11 I've been looking into torchoidal tool path such as this video:
This would be for material removal in between the parts. In the past I have tried out plunge roughing as per Steve Seebold's parameters with great results but I'm concerned this might be a little rough on the endmil and the machine. Working with G-Wizard I get the following parameters for a material removal rate of about 2.5 cubic inches.
The results were less than spectacular. Lots of chatter, lousy sunfish finish and I wasn't running any where near 90 IPM. I'm running a souped up flood coolant so chip evacuation is not a problem. I am going to try out a YG-1 3 flute endmill I just ordered. https://www.amazon.com/gp/product/B0...?ie=UTF8&psc=1
So my question is should I forget about torchoidal tool paths and go with a more traditional method of slotting? Is plunge roughing a little bit too much for this project?
Any info is greatly appreciated
Thanks
Eric