Additive-Subtractive Technologies – Effective Transition to Innovation Production

Abstract

At present a rapid development of additive technologies for the growth of metal and alloy products takes place. Each additive technology has its own rational field of application and its own characteristic set of advantages and disadvantages. The most promising technologies are new 3DMP-technologies of wire sedimentation/welding deposition by a method electric arc welding in combination with subtractive machining technologies (additive-subtractive technologies). The application of 3DMP-technologies in comparison with common and some powder technologies results in the considerable decrease of production costs and substantial increase of growth productivity, for them it is characteristic a high coefficient of initial material beneficial use. The advantage in use of additive-subtractive technologies (AST) consists in a possibility of the alternative use of additive and subtractive transitions at the formation of a part within the limits of one technological operation in a full compliance with the principle of community and constancy of technological bases. But AST peculiarity requires a complex solution of interrelated engineering and scientific problems including those in the field of design of products, material machining, engineering procedure automation and CAD systems. For instance, in consequence of that the realization of 3DMP-technology is possible only under conditions of complete process automation, in the presence of a subtractive module having 3-5 controlled coordinates, for the equipment on the whole the NC system is necessary which controls the execution unit displacement along six coordinate axes and more.