Posts from Will Hoffman
Going for the Bronze…Part Deux
Posted onGoing for the Bronze!!!! Part 1
Posted onOver the last month, work has continued on the Worthington pump replication project with the focus having briefly turned to the reproduction of many of the bronze components from the pump, which includes the steam exhaust flange, tappets, lock nut, spindle valves, and several other pieces. Similar to the mold making method used to copy the steam chest cover and dampening piston cylinder head cast last April (see April blog posts), rubber molds were taken of the components through a several stage process. However, instead of using the technique of piece mold pattern casting, the “lost wax” casting method was employed to replicate the parts along with a different type of furnace used to melt the metal.
I’ll use the steam exhaust flange to describe the overall process.