How to make a turn on the lathe?

1, single piece, small batch production: according to the operator's proficiency, cut the spherical surface with R-knife hand motor car according to the template. The accuracy of this method is not very high, but it can process spherical surfaces with any diameter (within the turning range of lathe).

2. Grinding the template. Only spherical surfaces with a single diameter can be machined, and the diameter cannot be too large. Suitable for medium batch production.

3. Modeling method. It is necessary to make a pair of complex copying dies, which can process spherical surfaces with a certain diameter (such as S φ 30 ~ 45). And is suitable for mass production.