inspecting a forging

[jozey]

Hi all,

I'm checking a forging and engineering wants to make sure there's enough material. I have a forging blue print and a forging model.. my question is couldn't I take a bunch of points, construct a feature set, and report profile of a surface to make sure there's + material ?

Hope this makes sense.
Thank you

[louisd]

The concept is something you could definitely build upon. Do you have clearly defined datums on the uncut forging? I feel getting alignment to the machined CAD on a forging would be a decent challenge, before you can assess the T value of points, to confirm if the whole forging is + material.

After getting alignment down (probably will need to do a best-fit)
I would think if you took a series of points on the final machined part CAD with ample prehit/retract, to account for the + material of the forging,
then reporting max/min T value of the feature set... as long as there isn't a negative T value your forging is + material.

[jozey]

Unfortunately the print has no datum's. I aligned the part using iterative which seems to work, I can now select features on the CAD and the machine knows where it is. I like your idea of using the final machined part CAD and will see what engineering thinks. Thank you!

[CMM-Operator]

Have the part 3D scanned..