What is the minimum thickness that can be welded in ultrasonic welding?
(a) 0.58 mm
(b) 0.21 mm
(c) 0.38 mm
(d) 0.92 mm
I had been asked this question during a job interview.
This is a very interesting question from Solid State Welding in section Welding and Related Processes of Casting-Forming-Welding II