Abstract
Previous analyses of material flow and temperature history during cold forging mostly referred to a particular manufacturing cycle of the forging; temperature changes in the tools with the number of manufacturing cycle were not examined. Repeating full-scale, coupled thermo-mechanical plastic-flow simulation to effect the analysis of temperature changes during multi-cycle operations is impracticable. An alternative strategy was, therefore, used for developing a simplified procedure to effect the analysis. The approach was to combine coupled thermo-mechanical FE plastic simulation and heat transfer analysis to define heat-flux-density functions across die/workpiece interfaces. The functions were then used for initiating heat transfer analysis on the die with the repeated heat-loading for the given cycles. Since only heat transfer analysis was required for the die for the multi-cycle analysis, high-efficiency of the computation was achieved.
Original language | English |
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Pages (from-to) | 252-259 |
Number of pages | 8 |
Journal | Journal of Materials Processing Technology |
Volume | 107 |
Issue number | 1-3 |
DOIs | |
Publication status | Published - 22 Nov 2000 |
Keywords
- cold forging
- temperature
- FE simulation
- heat transfer analysis
- heat-flux-density functions