METHOD OF FRICTION WELDING PROCEDURE FOR FERRITIC STAINLESS STEEL RODS

摘要

This invention relates to a friction welding process by adapting ferritic stainless steel rods, comprising the steps of rotating the weldable components in a friction -welding machine; applying an upsetting force; and allowing the components to undergo a post-weld annealing treatment. The post-weld annealing treatment further comprises the steps of; keeping the weld sample in an annealing furnace; heating the weld sample to 800°C at the rate of 200°C per hour; maintaining the temperature of 800°C for 120 minutes; cooling the component to 500°C inside the furnace at the rate of 150°C per hour; and air cooling the component from 500°C to room temperature.