Bead-on-plate welding of zircaloy-4 (a reactive material) plates was conducted using electron beam according to central composite design of experiments. Its predictive models were developed in the form of knowledge-based systems in both forward and reverse directions using neural networks. Input parameters considered for this welding of reactive metals were accelerating voltage, beam current an...

Electron Beam welding is becoming more important in Indian industries due to the growing automation of the process and superior weld quality, resulting from virtually zero heat affected zone (HAZ). Two main types of defects are often encountered in EB welding joints viz void type defects and crack type. EB welding joints must be radiographically inspected for all these types of defects and it i...

A welding robot is an advanced piece of machinery in industry, especially in the field of industrial automation. As a complex system, it has a high failure probability because it manipulates, controls and performs complicated objects and tasks. Therefore, more attention has recently focused on the reliability of a welding robot. Reliability is very important because its performance will affect ...

In this paper, a low cost, high performance and full PC-based sensor system for the pulsed gas metal arc welding (PGMAW) is described. It allows the visual online observation of all states of the welding process, including the material transition, and all welding situations without an additional lighting unit. Additionally, the synchronized measurement of the welding current and welding voltage...

Resistance spot welding is a process with high productivity and level of automation. This rises number tasks related to development quality evaluation monitoring systems operating in real-time mode which would allow detect non-compliant joints during the run shortly after it finished. The more complex task make such system as much universal possible, consisting relatively simple equipment possi...

In order to remain competitive, the European metal working industry aims for customer-oriented production more and more. That means, the automation of the welding activity in an environment producing customised products has potentially wide-ranging benefits for many other industries such as construction, shipbuilding, off highway vehicle, structural fabrication, military vehicles, and heavy han...