I am currently pursuing my PhD in Mechanical Engineering (dynamics & controls) and like my research a lot, even so much that I would like to continue with the academic route and aim to become a research Professor. I should emphasize that I do have a symbiotic relationship with my advisor and I see that we get more than a handful of Journal papers out before the end of my PhD. I have done 4 different internships throughout my undergraduate and graduate studies and can say that I know that I don't see myself in industry.
Due to the lack of first-hand experience from my peers I am reaching out to this community. The questions are:
Is it common/appreciated to do an internship in industry during my PhD when I would like to become a research Professor? If the answer is yes, how long should an internship be? Just over the summer or for a whole semester? Or is it more important to stay with your advisor and get as many papers out as possible?
Is it common/appreciated that I do research at a different university with a different lab to widen my horizon in terms of research methods, exposure to different ideas etc.?
The questions are pointed at: What does really count in a faculty interview? I appreciate any comment regarding on what really counts when it comes down to become a research Professor. Thank you.