Numeric modeling of the process of press fitting dies into ring blocks with allowance for plastic deformation and frictional forces

V. I. Levitas, A. V. Idesman, A. B. Nemirovskii, Ya B. Nemirovskii, Yu V. Zherebtsov, I. E. Stashkevich, A. I. Gerovskii

Research output: Contribution to journalArticle

2 Scopus citations

Abstract

Dies of high-pressure vessels (HPV) for the synthesis of superhard materials (SHM) are press-fitted into ring blocks with considerable interference to improve their stability. The mathematical statement of the problem of determining the stress-strain state (SSS) of the die and ring block during press fitting, which includes a computational scheme, and a system of equations for solving elastoplastic contact problems for large deformations, is presented. The SSS of the die and ring block is investigated on the basis of an FEM-based numeric method developed with allowance for the history of the press fit in accordance with existing and proposed procedures. Implementation of the new press-fitting technology has made it possible to improve the stability of dies and ring blocks by 30-44%.

Original languageEnglish
Pages (from-to)1675-1682
Number of pages8
JournalStrength of Materials
Volume22
Issue number11
DOIs
StatePublished - Nov 1990

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