Cutoff/parting Holder/blade

B

billr

Registered
Registered
Joined
Dec 25, 2015
Messages
28
I bought the AXA qctp from CDCO and a 3/32" blade for the parting tool in the set for my G0602 lathe.
I was disappointed in the action of the blade when parting off on 12L14 steel; 1-1/4" diameter.
Blade was 90 deg. to the stock and on center.
Spindle speed was 560 and moderate feed pressure with cutting oil.
A lot of chatter so I am looking for suggestion and hints.
It may just be me.
Thanks,
Bill
 
whilst attempting the cut place a finger on each of the slide joints in the cross slide and top slide and see if you can feel any movement.
Also check very closely to see if the whole tool post is flexing.
I would suspect that flex somewhere in that area is the culprit if the tool is sharp.
Until I removed those areas of flexure on my 9x20 I couldnt make a full cutoff part.
 
Hey Billr,I was having the same problem only with 1" stainless steel I think they were cheep parting blades so I ordered some 3/32 from Shars and it was like night and day so maybe either they were cheep or dull but again I was only cutting stainless steel .
 
I'll try it at 150 RPM (slowest this lathe will turn) and see what the results are.
I thought it might have been something I was doing incorrectly.
Thanks,
Bill
 
No insult taken,
You are right on sharpness so another thing to check.
Thanks.
 
Was it a p type blade or one with the bevels on . Keep the speed down run oil on the cut. and a p type blade.
 
It was a HHS flat blade and probably not the highest quality.
I'll look into the Shars insert type.
Thanks
 
You must log in or register to reply here.
Back
Top