Method of dividing the total allowance between turning operations are performed consecutively

Almost all processes in practice provide for processing surfaces or for multiple passes. For objectivity get the result it is important to bear in mind the maximum number of factors and their influence in the appointment of required quantities allowance, as this will assign allowance more reasonably, and that means lower costs for parts manufacturing, while maintaining quality. For economical and productive work in conditions of mass and large-scale production is of particular importance to the solution of the following problem: divide the total allowance on layers and in the same proportion to get values of resistance of incisors, linked by a certain attitude. Presented analytical solution of the task of determining the allowances for iterative processing details on several turning operations. The method of calculation involves obtaining values for persistence tools in the sequential, linked by a predetermined value for durability of cutting tools, taking into account the restriction settings on maximum torque on the spindle of the machine, on the reliability of the clamping device. The solution is carried out by iterations. It is shown that if processing is performed on the automated line or mnogorezcovom equipment, advantageous to carry out readjustment of both cutters simultaneously, one stop work. In this case, the ratio stojkostej must be an integer or a fraction of the reverse integer.