Some key characteristics of metal spinning:
1. It produces circular, symmetrical shapes like pots, bowls, cylinders, funnels, etc. Items that need a smooth contour are well suited for metal spinning.
2. It can produce shapes that are hard to make using other techniques like stamping, forging or casting. Metal spinning offers a lot of flexibility in the geometry of parts that can be produced.
3. It is a quick and cost effective process. Very little material is wasted and less finishing is required compared to other methods.
4. Soft metals with high ductility like aluminum, copper, brass and mild steel can be readily spun. The metal needs to be able to withstand the high plastic deformation required in spinning without cracking.
5. The basic equipment needed is a spinning lathe, mandrels, chucks, spinning tools and lubricants. The lathe provides the high rotation speeds required, while the tools shape the metal.
6. Process parameters such as angular velocity, feed rate, tool shape, lubrication, etc. need to be properly controlled to get good results.
7. There are two main types: hot spinning and cold spinning. Hot spinning produces higher ductility for severe deformations, while cold spinning gives better surface finish.
8. Typical applications include making containers, bowls, cylinders, funnels, rocket motor casings, etc. Metal spinning is a versatile industrial process with many applications.
