Discussion on all milling machines vertical & horizontal, including but not limited to Bridgeports, Hardinge, South Bend, Clausing, Van Norman, including imports.
kluzfranjo wrote:but will my torque limit kill any potential advantages of roughing mills?
Not at all. In fact, once you've used one a few times, you'll probably never use a standard endmill except for finishing. And even then you'll probably find yourself debating on if the finish is good enough so you don't have to
If it is a bright finish,, probably meant for aluminum ,,, with out seeing it cant say for sure.
typically with a rougher you want to go full depth minus a clean up amount. and then make all cuts radially if you can.
going full depth, and as "buried" as you can spreads all the cutter wear over the full length of the cutter. if you step down, you end up wearing the end out! and it wont rough to well any more!! spread the cut and wear out!! limit the radial depth to suit your machine. one important thing to keep in mind,,, keep the chips cleared out of the cut area with either coolant or air or spray. your typical rougher chip will have a thicker cross section, but shorter chip. because of the tooth design, recutting these chips are hard on everything!
plus the design and action of the roughers interrupted teeth, there is less side load on the cutter, so less deflection in the cutter, till it starts dulling!
Grant
