If you can cool it some how or do pecking cuts it might improve greatly.
Cooling doesn't have to chill - just flood with oil and it will carry away
some heat.
Often I use WD-40 which does both light chilling and light oiling and light lube.
Martin
Martin H. Eastburn
@ home at Lions' Lair with our computer lionslair at consolidated dot net
TSRA, Endowed; NRA LOH & Patron Member, Golden Eagle, Patriot's Medal.
NRA Second Amendment Task Force Charter Founder
IHMSA and NRA Metallic Silhouette maker & member.
http://lufkinced.com/


Louis Ohland wrote:
I leave it up to my Dad to set up the lathe (its his, anyways). But the
gibs seem tight. I'd have to czech.

Using an SGIH 19-2PS with .093 (IIRC) inserts. Blade is out about 3/4".

Cutting hot rolled steel with the gnarly looking resultant finish. The
welding might have happened, I'd have to look at the insert.

Note to all: An insert does not fully seat until you advance it into a
workpiece or tap it in using wood and a hammer.

Martin H. Eastburn wrote:
Might be you have the gibes a bit loose ? Too much slop on a normal
day ?

If you run dry and hot - you can be welding the edge onto the work.
A little bur of melted stuff can stick on a corner of the cutter - and
then it grabs..

I never cross cut in a slot that is the width of the blade - no space
to have flex if it has to or take chips or whatever.

Cooling is best.

The -77 - it that the thin blade ?

Might be extending out to far also. I have snapped off the blade.
I use the carbide tip one and pick left, right or center cut.

Martin Sheldon 11x44 Aloris using AXA*

Martin H. Eastburn
@ home at Lions' Lair with our computer lionslair at consolidated dot net
TSRA, Life; NRA LOH & Patron Member, Golden Eagle, Patriot's Medal.
NRA Second Amendment Task Force Charter Founder
IHMSA and NRA Metallic Silhouette maker & member.
http://lufkinced.com/


Louis Ohland wrote:
Using an 11x26 Grizzly G9972Z lather (CQ6128A) with the original
compound slide and clamp.

Jon Elson wrote:


Louis Ohland wrote:
I was making a cut-off last night with my Aloris AXA-77. After
reducing speed from 750rpm to 150rpm, and resetting the height of
the blade, things worked MUCH better, But as it got close to
cut-off, it grabbed a bit and the whole toolpost, compound slide,
and clamp ring ROCKED towards the workpiece... Now there's
something you don't see every day...
You don't mention the size/make of your lathe. I used to have
Atlas-made
lathes, both 10" and later a 12". The compound of these was a bit
flexible, but it would still smash a cutoff blade or rip the work
out of the chuck rather than really flex things a whole bunch.
My 15" Sheldon does MUCH better at cutoff due to the enormous rigidity
of the carriage assembly on up. Mostly it just makes a big crunch
and the little roll of swarf that had bound up in the cut gets
smashed and it keeps right on cutting.

Jon