Computer Simulation and Analysis of the Parameters of the Drawing Process of Thin Wire from the Alloy Pd-5Ni

Abstract

This article represents the results of studies of the drawing thin wire from the alloy Pd-5Ni process. The studies used the software developed by the authors using the methods of calculating the drawing process and the computer model implemented in the DEFORM 3D software package. By way of calculation, a drawing route was determined, including 14 transitions, and the efforts of deforming the metal were found when producing wire with a diameter of 0.075. For this mode of deformation processing using the DEFORM 3D software package, we simulated the drawing process and established the temperature and stress distribution over the volume of the workpiece. The simulation results confirmed that the calculated safety factor for drawing is in the range of 2.85-3.43, which ensures a stable process of deformation of the metal without breaks and, as a consequence, an increase in productivity and yield of the suitable metal. Experimental studies have confirmed the adequacy of the developed model, so it can be used to analyze the process of drawing wire from other precious metal alloys. The results of the research are recommended to improve the production technology of thin wire from the alloy Pd-5Ni for the manufacture of catalytic gripping grids.

Study of the Stress-Strain State of the Process of Drawing Wire from an Alloy of Palladium with Nickel

“…As the initial conditions for modeling one of the stages of drawing the existing production, the PdNi-5 alloy used the chemical composition of which included 95% palladium and 5% nickel. Analysis of the scientific and technical literature [7][8][9][10][11][12][13][14][15][16][17][18][19] showed the lack of data on the rheological characteristics of the PdNi-5 alloy in it. To determine them, special experimental studies performed [8,9], as a result of which data obtained on the tensile strength and elongation, the values of which imported into the DEFORM-3D software package.…”