Fatigue analysis of BT20 titanium joint by arc-ultrasound TIG welding;

Influence on grain refinement of arc-ultrasound in welding process;

Study on seam tracing with arc-ultrasonic;

Arc-ultrasonic Effect and Property Optimization in Plasma Spraying of TBCs;

As a new method to improve adhesive strength of plasma sprayed nano-structured ZrO2 coatings, arc-ultrasonic was introduced.

Factors influenced arc-excited ultrasonic intensity;

Effect of arc-excited ultrasonic on the quality of the 09MnNiDR steel's joint;

Improving quality of Ti6Al4V welding joint by arc-excited ultrasonic treatment;

Signal characteristics of short-circuit GMAW arc sound and its formation mechanism;

A computer detection and analysis system is developed and the correlation of CO 2 welding arc sound with spatter loss as well as its affecting factors are deeply studied.

With a view to realize on-line welding quality diagnosis based on characteristics of dynamic signals in welding processing several studys on singnal feature and the correction between characteristic class and welding sprays are done in this paper as follows,which use arc sound as mainly studied object.