Transmission cover three-spindle simultaneous inertia welding

This application was to join three mounting nuts to a transmission cover. A single spindle machine would have to make three separate welds per cover, which was time-consuming and would have required nine machines to satisfy the customer's production requirements. By combining three spindles in a cluster, each weld is made independently of the others but at the same time. Only three machines were needed, producing 360 covers per hour per machine.