Перспективний напрям локального формоутворення – суміщене штампування обкочуванням

Abstract

Gozhii S. P., Myronenko V. A. Prospective direction of local formation - combined stamping by rolling

Long-term research of the process of rolling stamping, development of technological processes of processing and development of equipment and equipment, which are carried out at the Department of Aircraft Production Technology of the Scientific and Educational Mechanics and Mechanical Engineering Institute of the National Technical University of Ukraine "Ihor Sikorskyi Kyiv Polytechnic Institute", led to the registration and accumulation of cases, when the samples were subjected to destruction. It is the characteristic destruction during rolling stamping that became the basis for the spread of the traditional process at the expense of quality effects. Specific force and cyclic loading during local deformation cause atypical, at first glance, destruction compared to ordinary compression. The article presents the experimental results of the research and the characteristics of the destruction of the samples. The most common type of failure during rolling stamping is the formation of a central hole. The physical model during plastic molding is considered and detailed explanations are provided for such manifestations of the process as the destruction of the central part. A new technological process and processing scheme of combined rolling and stitching stamping is modeled using the finite element method for a group of typical parts. The simulation results confirmed the basic assumptions. The technological process is being prepared for production implementation.