preheating

This paper presents the findings from numerical modeling of the turning process of titanium alloys with preheating of the workpiece. This modelling was conducted using the DEFORM-2D software environment, which is based on the finite element method (FEM). The objective of this study is to investigate the influence of workpiece temperature on cutting force and to determine the optimal heating parameters for machining materials that are challenging to process.

The issue of determining cutting forces in machining processes is relevant due to the need to improve the efficiency, quality, and accuracy of hard-to-machine materials. In particular, preventive heating of the workpiece can reduce the mechanical resistance of the machined material, which reduces the load on the tool and increases its service life. The article aims to study and analyze the equipment design for measuring cutting forces under conditions of preventive heating.

Investigations on the development of a basic technology of the shielded-gas mechanized arc welding of strengthening structural elements which are used in repair of main gas pipelines were carried out.