I had a job turning some parts made from 6082 T6 aluminium. The part was 90mm in diameter.
The problem was after about 3 passes 30mm long, the turnings would get caught in the chuck jaws and i would have to stop the program and remove the swarf then start where the program stopped.
I thought it would be a good idea to use a face grooving cycle in intercon.
I programmed the face grooving cycle to take a 1mm cut in X and peck cutting every 2mm in Z. It worked well breaking the chips every time it pecked.
The swarf was now manageable and no turnings ever got wrapped around the chuck again.
I also use the part off cycle for deep grooves as you can peck cut to produce perfect length chips.
I couldn't get the chips to break without any other method. It is not a big lathe and has limited capacity.
CNC lathe Dealing with long chips
Moderator: cnckeith
-
PhilipTrueman
- Posts: 90
- Joined: Thu Sep 21, 2023 10:13 am
- Acorn CNC Controller: Yes
- Plasma CNC Controller: No
- AcornSix CNC Controller: No
- Allin1DC CNC Controller: No
- Hickory CNC Controller: No
- Oak CNC controller: No
- CNC Control System Serial Number: none
- DC3IOB: No
- CNC12: Yes
- CNC11: No
- CPU10 or CPU7: No
- Location: United Kingdom
CNC lathe Dealing with long chips
- Attachments
-
-
cnckeith
- Posts: 7345
- Joined: Wed Mar 03, 2010 4:23 pm
- Acorn CNC Controller: Yes
- Allin1DC CNC Controller: Yes
- Oak CNC controller: Yes
- CNC Control System Serial Number: none
- DC3IOB: Yes
- CNC11: Yes
- CPU10 or CPU7: Yes
- Contact:
Re: CNC lathe Dealing with long chips
thanks, i moved this post to the machining strategies forum. 
Need support? READ THIS POST first. http://centroidcncforum.com/viewtopic.php?f=60&t=1043
All Acorn Documentation is located here: viewtopic.php?f=60&t=3397
Answers to common questions: viewforum.php?f=63
and here viewforum.php?f=61
Gear we use but don't sell. https://www.centroidcnc.com/centroid_di ... _gear.html
All Acorn Documentation is located here: viewtopic.php?f=60&t=3397
Answers to common questions: viewforum.php?f=63
and here viewforum.php?f=61
Gear we use but don't sell. https://www.centroidcnc.com/centroid_di ... _gear.html
-
tblough
- Posts: 3103
- Joined: Tue Mar 22, 2016 10:03 am
- Acorn CNC Controller: Yes
- Allin1DC CNC Controller: Yes
- Oak CNC controller: Yes
- CNC Control System Serial Number: 100505
100327
102696
103432
7804732B977B-0624192192 - DC3IOB: No
- CNC12: Yes
- CNC11: No
- CPU10 or CPU7: No
- Location: Boston, MA
- Contact:
Re: CNC lathe Dealing with long chips
Increase the feedrate or the depth of cut to make chips break.
Cheers,
Tom
Confidence is the feeling you have before you fully understand the situation.
I have CDO. It's like OCD, but the letters are where they should be.
Tom
Confidence is the feeling you have before you fully understand the situation.
I have CDO. It's like OCD, but the letters are where they should be.
-
PhilipTrueman
- Posts: 90
- Joined: Thu Sep 21, 2023 10:13 am
- Acorn CNC Controller: Yes
- Plasma CNC Controller: No
- AcornSix CNC Controller: No
- Allin1DC CNC Controller: No
- Hickory CNC Controller: No
- Oak CNC controller: No
- CNC Control System Serial Number: none
- DC3IOB: No
- CNC12: Yes
- CNC11: No
- CPU10 or CPU7: No
- Location: United Kingdom
Re: CNC lathe Dealing with long chips
I tried increasing the depth of cut to 2mm off the diameter but it just tears the chips but still doesn't break the chips.
I tried increasing the feedrate but it is still the same.
I just set the feedrate to what it reccomends on the carbide insert box. I am using ground inserts for aluminium.
On steel it will break chips.
I need a larger lathe.