Finite Element Modeling and Visualization of Additive Ring Growing by 3DMP Method

Abstract

The aim of the work is to obtain a finite element model of the additive growing process in the general case of a complex-shaped product using the 3DMP (3D Metal Print) method of wire deposition / surfacing by gas metal arc welding, visualization of the forming temperature fields. The problem is solved using the example of an elementary ring by creating a scalable model in the Ansys software package. The stages of creating a finite element model as well as the results of its approbation in the analysis of temperatures are given. The model visualizes the nature of the influence of the deposition / surfacing parameters on the temperature fields that are formed and dynamically change with the movement of the wire feedstock. In this case, the conditions of additive free shaping of a closed-form product are of no small importance. It becomes possible to visually assess the degree of heating and the volume of heated metal in the hazardous area, proceed further to the calculation of stress and strain fields in the grown product, and choose the correct technological parameters of the process. The obtained visual information makes it possible to perform a qualitative and quantitative assessment of the additive shaping result, to determine the required intensity of heat removal, which contributes to the grown product quality improvement as a whole.

Development of an automated system for designing ball screws

“…In this study, it was decided to use the synthesis of the methods of Anuryev V.I. [9], Egorov O.D. [10], HIWIN company [11] and the work "Calculation of ball screws of recirculating ball screw-and-nut" [12], that will make it possible to compute all the necessary geometric parameters of the ball screw.…”