I’m new to machining but I’ve already got some jobs to do with the old Comet milling machine we just got at our shop. A guy who owned a machine shop two blocks down sold his business and we got the Comet, a surface grinder, and a bunch of end mills.
We’ve got everything set up and I just spent...
We getting what I call Chattering (metal is being torn (?)) on our 3/8" Stainless Steel at the same spot every revolution. (See Photo).
Its both on the Threads & Taper cut. WHY?
CNC Machine @ 3500 rpm (we normally use 2500 rpm on our C6 stock w/o any problems).
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