Abstract:
A method for simultaneous processing of stepped holes in the bedding of a submersible pump and the boring bar
design is proposed. The results of the study of existing methods for processing stepped holes and the design of
boring tools are presented. It was revealed that the considered methods and designs of tools cannot be used for
processing stepped holes in the submersible pump frame. The calculation of the developed design of the boring bar
for static stiffness and strength, as well as the calculation of the stress-strain state (SSS) of the cutting plates by the
finite element method using the ANSYS program, was carried out. The purpose of calculating the boring bar for static
stiffness is a finite element study of the radial displacement of the boring bar cutter plates in the process of machining
a stepped hole. As a result, the value of deformation in the axial and radial directions, which occur at the top of the
cutting plate, is established. Also, the values of the cantilever overhang of the boring cutters are established, under
which the conditions for the static rigidity of the boring bar are met. Taking into account the obtained results, the
boring bar design was optimized.
