This STIWA machine produces power modules for electric cars. The components are automatically assembled with processes using adhesive bonding, laser welding, and a multi-step assembly process.
After being loaded into the machine, the housing and power hybrid are secured with a two-component adhesive and cured via UV activation. Electrical contacts are joined together using laser welding. A grounding pad is applied to the circuit board. Then a pressure piece is placed in a soft potting compound. The sub-assembly is cured in an oven and mounted onto a heat sink using screws, disk springs, and press-in bushings. The finished product is finally loaded into trays.
HIGHLY EFFICIENT LASER WELDING FOR E-MOBILITY
This process station incorporates state-of-the-art laser welding technology for optimal results with copper contacts. A system with four workpiece carriers enables staggered processing and rapid carrier changes, ensuring that the welding process is not interrupted by waiting times and thus optimizing cycle time.
