<1> It is the purpose of machining by cutting and by erosion to give the workpiece the desired shape and dimensions of necessary accuracy, as well as to ensure that the surface layer of the workpiece has the desired quality. This purpose should be achieved in the most economical way.www.mapeng.net马棚网机械资讯

<2> Therefore, the main development trends in the field of machining by cutting and by erosion are:www.mapeng.net马棚网机械资讯

<3> (1) Reduction of material losses and this concerns both the machined material and the tools. In connection with this aim there arises the limits of a theoretical minimum, determined by the thickness of surface layer damaged by the preceding technongical process (e.g. casting crust) and the probable dimensional errors .The problem of reducing the wear of cutting tools and erodes（the tools applied in erosion processes ）also plays its part.www.mapeng.net马棚网机械资讯

<4> (2) Improvement of the quality of machined products. The means in particular the attainment of the necessary accuracy of shape and dimensions, as well as the optimization of surface layer properties from the point of the intended use of the product.www.mapeng.net马棚网机械资讯

<5> (3) Raising of the output and reduction of the labor consumption by the machining process, improvement of work safety and comfort. The task of mechanization and automation belongs here, especially the introduction of program-controlled machining. A higher degree of mechanization and automation means higher consumption of energy. Thus there rises the problem of rational and economical use of energy, in particular electrical energy. This problem becomes acute in the case of processes consuming large amounts of energy, such as the erosion processes.www.mapeng.net马棚网机械资讯

<6> (4) The widening of machining possibilities. This requires, on the one hand, the improvement of the machinability of materials and, on the other hand, the development of new methods of machining and improvement of the existing ones, as well as the optimization of machining conditions.www.mapeng.net马棚网机械资讯

<7> The science of metal cutting and erosion should create the theoretical basis for production engineering .in this process the main development trends should be followed and the most advantageous economical solutions aimed at.www.mapeng.net马棚网机械资讯