Corona-free machining porn

[MattiJ]

https://pr0gramm.com/top/3766014

[IanPendle]

So that's how they make coil springs - I always wondered how.....

[garyhlucas]

Really begs for a tool taking a cut in the reverse direction too.

[quadrod]

How do the buff the sharp corners off of the springs?

[darryl]

Have I just not been paying attention, or is that the first time I've seen the tool automatically lifted for the return stroke?

Those springs are probably for export to China- a punishment for sending us the virus

[wierdscience]

Have I just not been paying attention, or is that the first time I've seen the tool automatically lifted for the return stroke?

Those springs are probably for export to China- a punishment for sending us the virus

Gotta do it for carbide, it doesn't tolerate back dragging like HSS.

[The Artful Bodger]

So that's how they make coil springs - I always wondered how.....

New to me too, I thought they made springs by boring out bolts.

[Noitoen]

I remember long ago seeing a small shaper with some sort of cable assembly that lifted the clapper box. It worked on some kind of one way friction system next to the ram

Just found an example

https://youtu.be/VOmZQGFJGmQ

[QSIMDO]

How do the buff the sharp corners off of the springs?

They don't have to.
They're a supplier to Ford for F 150 seat springs.