Where are all the lathe guys?

ecs

ECS
Hi Guys,

Looking to get to know some of the lathe users. We can share info regarding lathe stuff and help one another. There doesn't seem to be many of us so would be cool to have it all in the one post.

What machines do you guys have and what parts do you make? Any cool projects underway?

@gear
@nemo1966
 

evermech

evermech
@ecs

i am running a Haas TL2 tool room lathe. Do a lot of shafts, threading,bushings,custom parts. This machine is a real work horse and reliable. I've been running this one for 12 years now. I have a video of it broaching a keyseat, I'll post it when I can find it.

Guy
 

westyone

Westyone
I have a CNC Masters 1440 lathe that has just been refitted to MASSO. I make prototype parts, vintage aircraft parts and small production runs.

Cheers

BobJ
 

ecs

ECS
@westyone Very cool machine. Sounds like a great little shop you have going on. Is it hobby or business?

@evermech Now your just showing of haha. I remember doing broaching at tech and we did it manually. Cool video! I'm guessing with a machine like thats its more business than hobby?
 

evermech

evermech
@ecs

This is what I use for small threads like the ones you're doing. I use square hss hand ground to 60 deg for the coarser threads or tougher materials

Guy
 

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evermech

evermech
@ecs

After watching the threading video you posted on your other topic about pitch problems I can see why your not happy with the cutter you're using which is essentially the same as mine. On the Haas lathe the control reduces the depth of cut as it gets deeper into the thread so it's much heavier at the beginning and lighter at full depth. your threads looked pretty nice so maybe it's not a concern.

Guy
 

ecs

ECS
@evermech - The photo of the thread i did was done the way you mentioned. 30 degree in feed angle which helps when going down to full depth.

Have you seen the threading tips/holders from Aloris? https://www.aloris.com/Aloris-Threading-Holders-Blades-Inserts/threading-and-grooving-tool-cxa-81

They also have some HSS - https://www.aloris.com/Aloris-Threading-Holders-Blades-Inserts/threading-holder-cxa-8

They also offer a couple of grades in the carbide. This machine will be cutting mostly threads. Have you used any systems like this before?

Regards,
Josh
 

evermech

evermech
Hi Josh

No I've never used either of those style of thread cutters. My gut is saying that the one with the small insert and top clamp is the better system. I like the fact that the carbide sits directly over the large deep seat so it should be able to withstand quite a bit of downward force. Also you can change a small carbide easily with just a feed hold when it's out of the way of the part then just resume program.

Guy
 

evermech

evermech
@ecs

yup I've used that style cutter but the holder was a bit different. These are especially good for deep coarse treads like 8 tpi. The carbide is a little more sensitive and easier to break the tip or sometimes the side will come off, most likely because the demand on the cutter is also heavier in the coarser threads. Still all around good and I have one in my tool box that gets used once in a while.

I think the writing on the wall is saying you will end up with more than one style of thread cutting tool as you move forward

Guy
 
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