Thursday, December 8, 2011

Heavy Machining - By Bay Cast Technologies

If a 10 foot diameter part is spinning at 19 RPM and you're cutting the outside edge, then you're cutting about 120 linear inches of metal per second. Coupled with the right feed rate and depth of cut, you've got these bullets rocketing off the part. The cross-section of the chip is approximately 1/2" x 3/16"... so we cut about 1.5 lb per second. Holy shit.

A 1/2" x 1/2" notch get cut off the entire rim of a 10' diameter part in about 5 seconds. We had to shut it down because it was too dangerous.... lol.


  1. 120 ips and 5.3 in^3/s, lol holy shit indeed. Do you know what the cutting forces were!?! I'm assuming that's a roughing pass.

  2. Yes a roughing pass. I have no clue of forces because this new machine is so heavy duty it cuts just about anything like butter. Our operator did have to dive behind his station and hit the e-stop though lol.