Face Mill Insert Holders - carbide face milling insert
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Any help? Make no assumptions about my (lack of) experience. I'm kind of limited to cheap brazed carbide and HSS. I ain't buying fancy tooling until I'm good enough to stop chipping/breaking everything.
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I've fumbled and figured out how to do nice work on mild steel, cast iron, plastic, and tons of brass and aluminum, but so far I am hating copper. It is sticky, grabby, too soft to hold tight, but hard enough to catch and bind up.
I managed to cuss my way through truing it up and getting a rough finish pass (just gonna sand smooth), but I need to cut 2 slots in it for o-rings. They don't cut... If I go low RPM it grabs. If I go high RPM it doesn't cut, just rubs the tool. I've sharpened the tool (brazed carbide) several times, through all the different attempts, and I can not find a technique that works.
When I made the rough finish, I figured out to take ultra-light passes that would pull off a very thin chip ribbon. I cant really do that plunging in an o-ring slot.
I know I can just lay my hacksaw on the piece while turning and get it done (how I parted it), but I'd really like to not cheat and learn what I'm screwing up.