Intensification of the process of the cold envelope of humidified semi-fabricates for the receiving products with a changing window installation

V Kalijuznyi,O Jarmolenko

doi:10.20535/2521-1943.2019.85.164271

Abstract

The finite element method has been used to determine the drawing of the details of the shape of the initial blank for compression and to establish the parameters of cold warping of such a high-carbon steel blade to obtain a hollow product with a variable wall thickness. By calculation, the shape and size of the initial workpiece have been determined. It has been shown that the use of a cold form of compression of the matrix of the traditional form does not allow the product of the desired form to be obtained due to the great strain and thickening of the walls in the bottom part of the deformed workpiece. Application of a matrix of a special profile, in which the deformation surface is formed by intersecting troughs with the same diameter of the cross section and consistently arranged with the same step, has reduced the effect of frictional forces, reduce the force of compression and the formation of a hollow product with a wall of variable thickness. Efforts and deformation work, distribution of specific forces on contact surfaces are established. The stressed-deformed state of the metal, the final form and the size of the product are determined. By the distribution of the intensity of deformations, the prediction of mechanical properties of deformed metal is carried out.

Highlights

The finite element method has been used to determine the drawing of the details of the shape of the initial blank for compression and to establish the parameters of cold warping of such a high-carbon steel blade to obtain a hollow product with a variable wall thickness
It has been shown that the use of a cold form of compression of the matrix of the traditional form does not allow the product of the desired form to be obtained due to the great strain and thickening of the walls in the bottom part of the deformed workpiece
Application of a matrix of a special profile, in which the deformation surface is formed by intersecting troughs with the same diameter of the cross section and consistently arranged with the same step, has reduced the effect of frictional forces, reduce the force of compression and the formation of a hollow product with a wall of variable thickness

Summary

Introduction

Що використання для холодного обтиску матриці традиційної форми не дозволяє отримати виріб необхідної форми внаслідок великого зусилля деформування і потовщення стінок в донній частині здеформованої заготовки. Метою роботи є інтенсифікація процесу холодного обтиску порожнистих напівфабрикатів завдяки використанню комп’ютерного моделювання методом скінченних елементів (МСЕ) для встановлення форми і розмірів вихідної заготовки за кресленням деталі та визначення параметрів холодного обтиску такої заготовки із високовуглецевої сталі в матриці спеціального профілю. Результати моделювання в середовищі DEFORM по визначенню форми і розмірів вихідної заготовки для обтиску шляхом вирівнювання обтиснутої частини з розмірами по ескізу виробу зображені на рис.

Results

Conclusion