Improving the accuracy of mechanical finishing of complex surfaces for cnc machines

Key words: CNC turning machines, process of synthesizing.

1. 
   INTRODUCTION.
   

The accumulated experience in the processing of batches of parts on CNC turning machines has shown that such technological methods as multi-pass processing, stabilization of the properties of workpieces, the choice of appropriate cutting conditions, etc., are quite effective only with limited requirements for the accuracy of manufacturing parts. With the tightening of these requirements, the role of the components of the processing error, due to errors in the initial setting of the tool, its wear, thermal deformations of the forming system and other disturbing factors, increases significantly. Therefore, when ensuring the accuracy of turning, it is inevitably necessary to introduce a correction to the position of the tool based on the results of measurements of the parameters of the workpiece, tool or other parameters of the forming system [1].

Technological processes of production associated with quality control of sequentially manufactured parts, especially for small-scale multi-product production, to one degree or another can be attributed to the class of a priori uncertain control objects, in which the error of the output parameter can be compensated for by adjusting (corrections) the level of dimensional adjustment of the equipment.

2.