Research of the Process of Axisymmetric Upsetting by Computer Simulation

Abstract

ɂ ɇ ɀ ɂ ɇ ɂ Ɋ ɂ ɇ Ƚ ȼ ɑ ȿ Ɋ ɇ Ɉ Ƀ Ɇ ȿ ɌȺ Ʌ Ʌ ɍ Ɋ Ƚ ɂ ɂ ɍȾɄ 621. 735 Ⱥɧɧɨɬɚɰɢɹ. ȼɨɡɧɢɤɚɸɳɟɟ ɜ ɩɪɨɰɟɫɫɟ ɨɫɚɞɤɢ ɰɢɥɢɧɞɪɢɱɟɫɤɢɯ ɡɚɝɨɬɨɜɨɤ ɧɚɩɪɹɠɟɧɧɨ-ɞɟɮɨɪɦɚɰɢɨɧɧɨɟ ɫɨɫɬɨɹɧɢɟ ɨɤɚɡɵɜɚɟɬ ɡɧɚɱɢɬɟɥɶɧɨɟ ɜɨɡ-ɞɟɣɫɬɜɢɟ ɧɚ ɮɨɪɦɢɪɨɜɚɧɢɟ ɧɟɨɛɯɨɞɢɦɵɯ ɩɨɬɪɟɛɢɬɟɥɶɫɤɢɯ ɤɚɱɟɫɬɜ ɝɨɬɨɜɵɯ ɢɡɞɟɥɢɣ. Ɂɧɚɱɢɬɟɥɶɧɨɟ ɜɥɢɹɧɢɟ ɧɚ ɢɬɨɝɨɜɨɟ ɪɚɫɩɪɟɞɟɥɟɧɢɟ ɞɟ-ɮɨɪɦɚɰɢɣ ɢ ɧɚɩɪɹɠɟɧɢɣ ɨɤɚɡɵɜɚɟɬ ɢɫɯɨɞɧɨɟ ɫɨɨɬɧɨɲɟɧɢɟ ɜɵɫɨɬɵ ɢ ɞɢɚɦɟɬɪɚ ɡɚɝɨɬɨɜɤɢ. ȼ ɭɫɥɨɜɢɹɯ ɪɟɚɥɶɧɨɣ ɨɫɚɞɤɢ ɩɪɨɢɡɜɟɫɬɢ ɚɧɚɥɢɡ ɫɨɫɬɨɹɧɢɹ ɦɟɬɚɥɥɚ ɱɚɫɬɨ ɛɵɜɚɟɬ ɡɚɬɪɭɞɧɢɬɟɥɶɧɨ, ɚ ɩɨɞɱɚɫ ɩɪɨɫɬɨ ɧɟɜɨɡɦɨɠɧɨ, ɨɞɧɚɤɨ ɫɨɜɪɟɦɟɧɧɵɟ ɫɪɟɞɫɬɜɚ ɤɨɦɩɶɸɬɟɪɧɨɝɨ ɦɨɞɟɥɢɪɨ-ɜɚɧɢɹ ɩɨɡɜɨɥɹɸɬ ɩɪɨɧɢɤɧɭɬɶ ɜɝɥɭɛɶ ɢɫɫɥɟɞɭɟɦɨɝɨ ɩɪɨɰɟɫɫɚ. Ⱦɥɹ ɩɪɨɜɟɪɤɢ ɚɞɟɤɜɚɬɧɨɫɬɢ ɩɨɥɭɱɚɟɦɵɯ ɞɚɧɧɵɯ ɜ ɫɢɫɬɟɦɟ Simufact Forming ɛɵɥɨ ɩɪɨɢɡɜɟɞɟɧɨ ɦɨɞɟɥɢɪɨɜɚɧɢɟ ɨɫɚɞɤɢ ɬɪɟɯ ɨɛɪɚɡɰɨɜ ɫ ɪɚɡɥɢɱɧɵɦɢ ɫɨɨɬɧɨɲɟɧɢɹɦɢ ɜɵɫɨɬɵ ɢ ɞɢɚɦɟɬɪɚ (H 0 / D 0 : 3,75; 1,875; 1,25). Ⱦɚɥɟɟ ɪɟɡɭɥɶɬɚɬɵ ɦɨɞɟɥɢɪɨɜɚɧɢɹ (ɧɚɩɪɹɠɟɧɧɨ-ɞɟɮɨɪɦɚɰɢɨɧɧɨɟ ɫɨɫɬɨɹɧɢɟ, ɬɟɱɟɧɢɟ ɦɟɬɚɥɥɚ, ɪɚɫɩɪɟɞɟɥɟɧɢɟ ɷɧɟɪɝɨɫɢɥɨɜɵɯ ɩɚɪɚɦɟɬɪɨɜ ɩɪɨ-ɰɟɫɫɚ) ɫɪɚɜɧɢɜɚɥɢɫɶ ɫ ɞɚɧɧɵɦɢ ɪɟɚɥɶɧɵɯ ɩɪɨɰɟɫɫɨɜ, ɨɩɢɫɚɧɧɵɯ ɜ ɥɢɬɟɪɚɬɭɪɧɵɯ ɢɫɬɨɱɧɢɤɚɯ. ɉɨɥɭɱɟɧɧɵɟ ɪɟɡɭɥɶɬɚɬɵ ɩɨɡɜɨɥɹɸɬ ɫɞɟɥɚɬɶ ɜɵɜɨɞ ɨ ɤɚɱɟɫɬɜɟɧɧɨɣ ɫɯɨɞɢɦɨɫɬɢ ɩɪɨɢɡɜɟɞɟɧɧɨɝɨ ɦɨɞɟɥɢɪɨɜɚɧɢɹ ɫ ɪɟɚɥɶɧɵɦɢ ɩɪɨɰɟɫɫɚɦɢ. ɗɬɨ ɞɚɟɬ ɜɨɡɦɨɠɧɨɫɬɶ ɢɫɩɨɥɶɡɨɜɚɬɶ ɩɨɥɭɱɟɧ-ɧɭɸ ɦɟɬɨɞɢɤɭ ɦɨɞɟɥɢɪɨɜɚɧɢɹ ɞɥɹ ɞɚɥɶɧɟɣɲɟɝɨ ɚɧɚɥɢɡɚ ɩɪɨɰɟɫɫɨɜ ɨɛɪɚɛɨɬɤɢ ɦɟɬɚɥɥɨɜ ɞɚɜɥɟɧɢɟɦ.Ʉɥɸɱɟɜɵɟ ɫɥɨɜɚ: ɤɨɜɤɚ, ɨɫɚɞɤɚ ɩɥɨɫɤɢɦɢ ɩɥɢɬɚɦɢ, ɪɚɫɩɪɟɞɟɥɟɧɢɟ ɞɟɮɨɪɦɚɰɢɣ, ɧɚɩɪɹɠɟɧɧɨ-ɞɟɮɨɪɦɚɰɢɨɧɧɨɟ ɫɨɫɬɨɹɧɢɟ, ɬɟɱɟɧɢɟ ɦɟɬɚɥɥɚ, ɦɨ-ɞɟɥɢɪɨɜɚɧɢɟ, ɦɟɬɨɞ ɤɨɧɟɱɧɵɯ ɷɥɟɦɟɧɬɨɜ, ɆɄɗ.