Boundary Conditions in tube spinning

[Push123456]

Dear all,



I am having difficulties in giving BC to 3D tube spinning problem. I want to rotate rigid roller around the workpiece (like nut travels in bolt). Also because of the friction between roller and the tube, roller should rotate around its own axis.



I am successful in rotating roller around the tube but cant rotate roller around its own axis due to frictional contact.



Can anyone please tell me how to do that?

I am attaching inp file as well as image of the process.

[Jorgen]

It should be possible to make that work (unfortunately I currently do not have time to carefully review your files )

-Jorgen

[Push123456]

Jorgen............Do you think its possible with the help of connectors..........