ALTERNATIVE ENERGY FORUM - etc.

"I have not failed. I've just found 10,000 ways that won't work." - => Misc. => Topic started by: Caleb on May 09, 2022, 12:42:14 pm

Title: Complex parts with humble tooling
Post by: Caleb on May 09, 2022, 12:42:14 pm
I thought this video of a crankshaft being manufactured using regular lathes and such was interesting

https://youtu.be/XsEIamdzsZs
Title: Re: Complex parts with humble tooling
Post by: CG on May 09, 2022, 02:01:40 pm
I always wondered how they did that back in the day. I'm sure they don't do it that way at GM anymore. Probably something like this. Click on the video and it will go to youtube.
https://youtu.be/81UjjSH2iFw
Title: Re: Complex parts with humble tooling
Post by: Caleb on May 10, 2022, 01:31:05 pm
I just about laughed when I saw the large steel bar they started out with.  No casting for us!  Amazing.
I think GM is still concerned about cycle time and minimizing chips. :-)
Title: Re: Complex parts with humble tooling
Post by: CG on May 11, 2022, 07:42:43 am
It amazed me how easy it looked to cut, like it was plastic.
Title: Re: Complex parts with humble tooling
Post by: Jswm on May 11, 2022, 07:03:10 pm
They  still  use both ways  to make  crank shafts  one is cast and one  is forged. If I'm remembering  correctly  the one  in the  2nd video  is forged for  more strength  for performance vehicles