Machining Wheel Castings | Model Engineer
Here are the front and back of a small wheel casting. The back of the casting will need to be recessed to open up the spokes. Stan Bray in one of his books suggests that this used to be done like this in the past. How much extra care do I need to take to avoid chipping the spokes as they come clear and the cut becomes intermittent? - and while normally I would use a tipped tool would I be better with HSS or a combination of carbide to begin and switch to HSS after the skin has been removed to avoid chipping the tool tip?
Source: model-engineer.co.uk