Question

In what conditions are the parts kept before welding in ultrasonic welding method?

(a) Low static pressure

(b) High static pressure

(c) Low moving pressure

(d) High moving pressure

The question was posed to me during an interview.

My doubt is from Solid State Welding in section Welding and Related Processes of Casting-Forming-Welding II

Answer 1

The correct choice is (a) Low static pressure

To elaborate: In ultrasonic welding method, the parts which are to be joined, are kept clamping to one another in between of supporting member and the welding tip. This clamping is done at a low static pressure.