cnc machining

[brightspark]

 

[roofman]

not much coolant used in that

 

[brightspark]

not much coolant used in that

I noticed .and a few sparks off the tool

 

[roofman]

I noticed .and a few sparks off the tool

yea i know i picked up on that too

 

[Hood]

Not watched the video yet (listening to Echoes and don't want to interrupt the magic )but lots of tooling nowadays is designed to run dry. The chips take the heat away and coolant can actually be bad for the tooling as you can get thermal fracturing.

 

[pressbrake1]

I noticed .and a few sparks off the tool

I only use coolant with hss drills.
With big work pieces heat soak is no longer a problem

 

[mike os]

Cutting hard and fast with tipped tools.... the chips are blue, no coolant needed as the heat is taken away with the swarf

 

[mtt.tr]

Ah that's nothing, done that on an old clapped out myford.

 

[8ob]

Not watched the video yet (listening to Echoes and don't want to interrupt the magic )but lots of tooling nowadays is designed to run dry. The chips take the heat away and coolant can actually be bad for the tooling as you can get thermal fracturing.

I am exonerated then

Bob

 

[brightspark]

Ah that's nothing, done that on an old clapped out myford.

we need a picture for proof too many tall stories on here to be believed a couple of us started a tall stories posts on here people telling porkies it got deleted because some people were getting paranoid and thinking it was them

 

[mtt.tr]

we need a picture for proof too many tall stories on here to be believed a couple of us started a tall stories posts on here people telling porkies it got deleted because some people were getting paranoid and thinking it was them

Call me the +vat man

 

[Hood]

I am exonerated then

Bob

You need to be working the inserts though or the coating doesn't work properly and they wear quick.

 

[brightspark]

You need to be working the inserts though or the coating doesn't work properly and they wear quick.

whats the score with the final 1 thou cut then

 

[roofman]

whats the score with the final 1 thou cut then

man comes out with a file

 

[Hood]

whats the score with the final 1 thou cut then

You don't need a final 1thou cut, the final 1mm DOC takes it exactly to size, no need to tickle things

 

[8ob]

You don't need a final 1thou cut, the final 1mm DOC takes it exactly to size, no need to tickle things

I am not that brave or confident

Bob

 

[Hood]

That is how you are meant to do things with carbide, light tickling cuts are the domain of old timers with their antiquated HSS
You can get carbide inserts that are capable of taking very fine cuts but they are ground and polished, you can even get HSS inserts.

This is a vid I took the last week while testing out the VDI30 to Capto C4 adapter I made up.
I set the tool with the tool arm I recently fitted to my lathe then programmed a face cut then an OD cut. It is 50mm dia F51 Duplex.
As you can see the toolsetter arm is pretty accurate for setting the tools up, saves a lot of time having to take cuts and measuring.

 

[mtt.tr]

You don't need a final 1thou cut, the final 1mm DOC takes it exactly to size, no need to tickle things

You never did understand a clitorus im guessing.

 

[Hood]

You never did understand a clitorus im guessing.

I don't use Carbide for that

 

[mtt.tr]

I don't use Carbide for that

Now i get whats wrong with 'er