parting ali help

All info relating to the Denford Cyclone lathes

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hpe
Posts: 9
Joined: Sat 13 May , 2017 7:53 am

parting ali help

Post by hpe » Wed 12 Jun , 2019 18:47 pm

i have a cyclone with a toe80 toolchanger .its all working mach 3.
i have a 3mm hss parting tool (ill buy different if advised)

i am struggling to part 25mm aluminium with it .

its snatching grabbing sounds terrible vibrates .
i can see the tool lifting a bit.

if something is loose or worn i will fix it,
But i need a base to start with
with this machine and tool what rpm and feed per rev do owners of this machine use for parting 25mm aluminium

cheers

Martin
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CNC Guru
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Location: Brighouse

Re: parting ali help

Post by Martin » Thu 13 Jun , 2019 7:52 am

Aluminium is difficult to part off without coolant.

We use Free Chipping Aluminium grade 2011 T3 without coolant.

With the following Feeds/Speeds.


Feed Rate/Min = 120
Feed Rate/rev = 0.07
Spindle Speed (RPM) = 1800
Spindle Speed (CSS) = 135

hpe
Posts: 9
Joined: Sat 13 May , 2017 7:53 am

Re: parting ali help

Post by hpe » Fri 14 Jun , 2019 7:47 am

thanks

So with these settings i should be in the ball park?
Regarding the parting tool lifting , does this suggest faulty turret with too much play or to be expected if settings are way out ?
thanks

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