Sucker Rod Manufacturing Processes—Forging Forming This video shows upset forging on sucker rod ends, where a precisely cut rod is locally heated by induction to forging temperature (around 1200°C) and formed in a die under high pressure to create a larger-diameter shoulder for rod and coupling connections. What makes this step critical is the metallographic structure and forging flow lines formed during hot working—they directly influence fatigue strength and connection reliability under repeat