NEAR-NET-SHAPE PROCESSES:NEAR-NET-SHAPE PRODUCTION: DEVELOPMENT TRENDS

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NEAR-NET-SHAPE PRODUCTION: DEVELOPMENT TRENDS

Near-net-shape production will continue to expand in the directions of application described in this chapter. An important question for decision making is how far the objectives of industrial production and common global interests in reduction of costs, shorter process chains and production cycles, and environment- and resource-protecting manufacturing can be made compatible one with each other and whether these objectives are feasible in an optimal manner. Besides chipless shaping, for near- net-shape process planning, the state of the art of both chipless shaping and cutting techniques has to be paid attention to because a reasonable interface between chipless and cutting manufacturing is highly significant. Thus, for instance, in the case of a nns strategy consisting of chipless shaping, heat treatment, and grinding, in future, grinding could be substituted for to a greater extent by

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machining of hard materials (turning, milling). As a result, reduced manufacturing times and lower energy consumption could be achievable and the requirements for chipless shaping could possibly be diminished. In cases where the final contours can be economically produced to the required accuracy using chipless shaping, the change to net-shape manufacturing is a useful development goal.

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