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View Full Version : Machining crankshafts - Attn modelmakers



Forrest Addy
07-18-2012, 07:39 PM
Here's how the big dogs make crankshafts:

Roughing

http://www.youtube.com/watch?v=dNXP3TA5_tw&feature=related

Drilling

http://www.youtube.com/watch?v=dNXP3TA5_tw&feature=related

And the animation:

http://www.youtube.com/watch?v=PutY8P6atwo

Got a little spare space in your shop? Here you go.

lowcountrycamo
07-18-2012, 08:13 PM
This guy has great videos on turning cranks, boring rods, and a finishing contrary tool. He even takes the time to show his set up.

http://youtu.be/ZCe_SC5RYzk

http://youtu.be/ZaVm1BouPGM

http://youtu.be/vFbnFmD1Wu4

I've watched them all and learned a few things.

lowcountrycamo
07-18-2012, 08:19 PM
Here's how the big dogs make crankshafts:

Riughing

http://www.youtube.com/watch?v=dNXP3TA5_tw&feature=related

Forrest I like the music in the first one, it sounds like a Phish concert I saw in college.:cool:

jkilroy
07-18-2012, 11:39 PM
Never seen a machine like that, custom perhaps?

lane
07-18-2012, 11:53 PM
I wonder how long it takes to program that . One mess up could get expensive.

becksmachine
07-19-2012, 12:53 AM
How many millions of dollars (Euros?) of tooling are we seeing, never mind the machine itself? :eek:

Dave

macona
07-19-2012, 01:17 AM
How many millions in inserts!

legendboy
07-19-2012, 01:55 AM
http://youtu.be/ZCe_SC5RYzk

that be funny if there was one guy at bost doing that to every crank, in the back room

Stuart Br
07-19-2012, 03:51 AM
I thought the M72 x 6 thread milling on the first video gave an excellent idea of scale

twopintsplease
07-19-2012, 06:24 AM
On a visit to the Lamborghini factory i saw the crankshaft machine they were using, all machined from solid, the crank emerged from the center of the cutter, for want a a better description a "donut" approx one meter in diameter and driven from the out side and inserts on the inside, rotating on a fixed axis and the crank was rotated and fed in and out, hard to see as the machine was inclosed but there was a "donut" on a bench beside it, no photos allowed in the factory only at the attached museum