Ansys Assistant will be unavailable on the Learning Forum starting January 30. An upgraded version is coming soon. We apologize for any inconvenience and appreciate your patience. Stay tuned for updates.
Devendra Badgujar
Forum Moderator

Roberto 

I checked the file and it looks like you trying to create that from Sheetmetal tab and not Design tab, so it is creating a flange and not plate. 

Try creating the same from Design Tab. 

Regards.

[bingo_chatbox]