Production of ship propellers by traditional machining practices is rather inefficient. This prompted a return to the engineering fundamentals from which traditional machining practices were developed and application of the fundamentals specifically to the unique problems of ship propeller production. Analysis and development of new approaches to machining technology, particularly applicable to ship propeller production, are described. Application of these new approaches to both three-axis and five-axis machining, of both separable propeller blades and monoblock propellers, are considered, resulting in the development of new machining practices applicable to these situations. These new machining practices are surprisingly different from traditional machining practices. Much of the new machining practice was successfully applied to actual ship propeller production. It is concluded that production efficiency can often be greatly improved with little or no degradation of the final product.

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