Ensuring accuracy of contour milling on CNC machines

Contour milling is characterized by quasi-stationary, which leads to the occurrence of a machining error caused elastic deflections system. Moreover, such an cannot be eliminated sub-adjusting control program "for size", since it not constant and changes along contour in wide range. To ensure accuracy milling, new method combined proposed, uses posteriori information machine verification measurements machined surface priori modeling material removal process. In case single manufacturing, allowance on last pass divided into two parts, after first part, verifications are performed, then second half according corrected program. mass performed all subsequent ones adjusted obtain necessary information, technology CNC-machine with three-coordinate probe standard programs enough perform or one, presence surfaces inclined coordinate axes contour. A computer was created, core mathematical model process, reproduces structural diagram system closed behind deflections. The primary file loaded G-codes measurement data, as result process simulation, for tool formed, eliminates from Preliminary tests showed possibility increasing more than 3 times.