Effect of Process Parameters on Friction Model in Computer Simulation of Linear Friction Welding

The friction model is important part of a numerical model of linear friction welding. Its selection determines the accuracy of the results. Existing models employ the classical law of Amonton-Coulomb where the friction coefficient is either constant or linearly dependent on a single parameter. Determination of the coefficient of friction is a time consuming process that requires a lot of experiments. So the feasibility of determinating the complex dependence should be assessing by analysis of effect of approximating law for friction model on simulation results

A 2D Computer Model of Cutting of the A2024 Aluminum Alloy

Machining can have a significant effect on the properties of machined parts of different equipment during their production. This paper is on the effect of vertical angle and cutting speed on temperature and stress. Using computer modeling values of these parameters were identified. Using the least squares method and a factorial computer experiment the dependence of peak values of temperature and stress is shown

On the visualization of joint formation during linear friction welding

A 3D computer model of the preliminary and the transition phases of LFW using ANSYS was developed. Based on the adhesion phenomena theory, we introduce a simple method to evaluate the areas of joint formation. Results of this evaluation are in good agreement with experiments. Custom software for the 3D-simulation of the process of joint formation and material movement into the flash was built, which used the results of the FEM model