Casting process of gate valves begins with creating detailed molds using sand or investment casting techniques. Molten metal, typically iron ... the rough cast is removed, trimmed, and machined ...

Sand casting has been around ... which we’re unfamiliar, the process seems pretty straightforward. You build a model of what you want, you create the sand cast from the model, you fill the ...

sand casting, lost PLA casting, lathe turning, milling, and even some good old-fashioned sanding. The most tedious part of the process appears to be dip coating of ceramic for the lost PLA mold ...