pre - machining non-complicated shapes
it is not always necessary to EDM the entire part. sometimes pre-machining can reduce costs as shown in figure 6:13.
wire EDM is an extremely efficient method to machine parts. however, costs can be further reduced by understanding this unique process of cutting metal.in the next chapter we will be discussing the advantages of wire EDM in tool and die making. Understanding this process can result in substantial saving in producing stamping dies.