Investigation on control strategies for pulse gas metal arc welding process

Pulse gas metal arc welding (pulse GMAW) plays an important role in advanced manufacturing technology, and it is transforming the conventional welding process into fine controllable one. However, the development of sophisticated pulse GMAW machines becomes very complex. The synergic parameters preset are needed in order to achieve optimum weld process. In addition, there are many facets of disturbances and adaptive process control is necessary to maintain optimum state. This paper reviews progress in control of pulse GMAW technology and summarize control strategies for embedded digital system detailedly.