The selection of options for closed-die forging of complex parts using computer simulation by the criteria of material savings and minimum forging force

Abstract

The analysis of the technological modes, technical and economic indices of three variants of closed-die forging of the complex forging part “Support” with the differences of the cross-sectional was carried out in the package Deform 3D. Options without preforming, with the implementation of a preforming upsetting of billet by elongated convex dies with eccentricity of load, and multiparts closed-die forging was considered. It was found that the introduction of technological options with preforming upsetting of billet by elongated convex dies with eccentricity of load is reducing the equivalent (von Mises) stresses by 5% and the equivalent deformations by 25% in the final die impression, allowing to make lower the waste in metal flash up to 22%, and reducing the forging force more than in 4 times.