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Hey everyone, how about a non-smartcam
question.
I am making a housing out of
leaded tin bronze, and it has a 5" deep, 1.250 /1.2505 dia hole thru it. I
currently had a plan of core drilling, which worked well, pre-boring to 1.235,
which worked well, and then reaming to 1.250, which didn't work. The
reamer grabbed and spun in the TG100 collet and got jammed up tight.
Running on a Fadal machine at 150 rpm and 3.0 ipm, I think the material just
kinda flowed out of the way and then grabbed the flutes of the reamer. Any
suggestions on this ? I was thinking of opening the pre-bore to
1.240/1.245 to relieve some pressure... The coolant is flowing down thru
the flutes fine, so I don't think it is a flow issue. The finish of the
bore looks great for the 1.50 inches that I made it down, but alas, there it
stayed.
If anyone has some pointers on this cast bronze
stuff, shoot me back a response.
Thanks in advance
Jon
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