first open ANSYS workbench than go component system-  double click geometry than write click on geometry to import stl or stp or solidworks part file.

yes you can by saving file as stp, step or extension of parts so you can use by solid works and save it in solid works to work with it in ansys. some problems may face you in stp and step. so take care of the drawing.

the best way i have done to open cad file by inventor and it works with me

I would like simulate radial forging and rotary swaging with ansys. One exemplo: https://www.youtube.com/watch?v=_JbiWPW5jM0 Can you help me? How I do?