Originally Posted by cuutter
Thanks guys. I do remove and clean every 0.050". I run the lathe at 90 rpm. Sometimes I will go up to 120 rpm. I feed the reamer appox. 0.005"-0.008" per second. Do you think thats too slow or too fast?
Thanks again for the in put.
I like to hold the reamer with a live center and a tap handel so that I can feel the reamer
cutting, and 30 to 40 thousandths is normally max depending on the reamer.
Some reamers load up with .030 feed so I back of and feed .020 to .025.
Most reamer makers say that you can run faster than I do but I dont have a lube system "YET"
and I run 40 to 70 spindle RPM to keep from heating the reamer any. also at these speeds I can feel the instant it loads up and needs to be cleaned.
I know this slows down the chambering job but not by much and my reamers are extremely
sharp after a dozen uses.
Everyone has there way of doing chambers and this is mine.
PS: The smaller the reamer the quicker it will load up because of the depth of the flutes. On the 17 HMRs I can only feed
.010 to .015 without cleaning.
J E CUSTOM