Pushrod Pushrod vanci (Materials) (OP) 4 Dec 04 23:24 Does anyone know what process is used to weld the round caps to the rod? Or are they even welded at all?Any advice is appreciated. RE: Pushrod AlfaTony (Materials) 27 Jan 05 14:11 what do you mean by "round caps"? piston?!You cann't assemble push rod within piston cap by using welding! RE: Pushrod vanci (Materials) (OP) 27 Jan 05 18:52 Okay then, maybe I should ask, "How is a pushrod manufactured?" RE: Pushrod patprimmer (Publican) 28 Jan 05 04:08 Some aluminium push-rods have press fit steel ends. Regardspat email@example.com, by professional engineers for professional engineersPlease see FAQ731-376 for tips on how to make the best use of Eng-Tips Fora. RE: Pushrod strokersix (Mechanical) 28 Jan 05 13:01 I'm taking a guess here but I'll bet they are friction welded. RE: Pushrod TVP (Materials) 28 Jan 05 18:06 Friction welding is used commonly to manufacture components like pushrods and poppet valves for high volume automotive applications. Lower volume requirements for racing, etc. are machined directly from bar.