8L lathe part off tool

Lathe
1

Hey guys! I’m machining 1.5” material is there a grooving tool I can use to part off?

2

Many. Although I don’t have an answer for you I can tell you that the person who does have an answer will ask: what material and grade. Also if you are doing o e just saw it. If you are doing many you should tell them that too because a hss cutoff is good for a few soft cutoffs but carbide is for lots of hard ones.

I use carbide insert parting off grooving tools (on my manual lathe) but I have never successfully -parted off a bar of steel without endless aggravation.

3

It’s 6061 Aluminum 1.5” round stock and yes I’m using carbide for inserts that the best way to go HSS sucks

4

And the best option I feel like would be the part off blades however I don’t know if it’s compatible with the OXA tool post

5

This is the style I use and have great luck with it. It is limited in how large you can part with it, but I’ve never had it grab on me the way the blade style will. I feed it at .001 per rev. at about 300 sfpm and it works great. Of course on steel I slow it down a bit, but in 6061 that’s where I run it …no peck, although you can if you wanted to . Hope this helps.

1 Like
6

I part 1.0 inch SS and can part up-to 1.60 Diameter which would do the trick for you, but if you want reliability I recommend a thru-coolant setup otherwise you will be eating inserts.

The Sandvik Holder is (link): C2R-QSA12-RG20CD

The aluminum inserts for this will also do Stainless and Super alloys
Insert Specs:

I get approximately 120 pieces from one cutting edge with Aluminum you’re going to need SFM so be sure to push the RPM’s on the cut and also be sure to reduce to 1/4 feed when you are at 0.100 Diameter.