Sustainability of Microwelding through Direct and Indirect Heating

Nowadays, microwelding processes have been developed for various technologies, mainly for electronic applications. Resistive bonding is usually used, but electrical energy consumption represents a challenge due to energy crisis in terms of lack of energy supply and prices. This paper aims to evaluate the carbon footprint and economic issues related to microwave welding of aluminum plates against conventional resistive bonding. The research performed has shown that for different levels of microwave injected power from 600 up to 1200 W, the calculated footprint based on energy consumption has shown the sustainability of the microwave welding process. The total energy consumed for microwelding process was less than 360 Wh meaning a total cost up 0,2 euro/100 joints.