Science, Maths & Technology
Manufacturing
...classed as hollow. The cavities in hollow objects can be quite simple but they can also be more complex, involving re-entrant angles (re-entrant angle: a shape in the mould which would prevent the product from being removed from the mould after solidification), as is the case with the carburettor body in Figure 1. [Figure 15] Figure 15 Plastic saucepan handle and its...