CONTROL OF FORMING PARAMETERS IN DEFORMATION BROACHING WITH THROUGH PLASTIC DEFORMATION

Abstract

The article presents an in-depth literature review and examines the possibility of controlling forming parameters in the
process of deforming broaching of workpieces made of ductile materials. Currently, this process is in demand, as it can be used
not only for manufacturing new parts but also for restoring worn ones, offering several significant advantages over other
restoration methods.Given the increasing requirements for product accuracy and quality, it is relevant to search for
technological solutions that ensure controlled plastic deformation in worn areas of parts with an allowance for subsequent
machining. The aim of this study is to investigate the possibility of controlling the forming parameters during through
deforming broaching of ductile material parts, and to obtain dimensions with a machining allowance by selecting the geometry
of the deforming tool and processing parameters.The literature analysis revealed that, in addition to the commonly observed
deformations such as wall thinning, outer diameter expansion, and part shortening after processing, there are cases where the
part elongates. This effect can potentially be used to compensate for end-face wear in axisymmetric parts. To confirm this
phenomenon, numerical modeling of the process was conducted using the Finite Element Method (FEM). The simulation
results showed that the deformation direction can indeed be influenced by the geometric parameters of the deforming element
and the broaching conditions.The conclusions provide recommendations for selecting parameters that can be used in the design
of processing technologies with controlled final dimensions, and directions for further research are outlined.