A method for the simulation of temperature stabilisation during multi-cycle cold forging operations

Y Qin, R Balendra, K Chodnikiewicz

Research output: Contribution to journalArticle

14 Citations (Scopus)

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.
LanguageEnglish
Pages252-259
Number of pages8
JournalJournal of Materials Processing Technology
Volume107
Issue number1-3
DOIs
Publication statusPublished - 22 Nov 2000

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Forging
Stabilization
Heat transfer
Cycle
Heat Transfer
Simulation
Die
Flow simulation
Plastic flow
Temperature
Probability density function
Heat flux
Plastics
Manufacturing
Flow Simulation
Heat Flux
Density Function
High Efficiency
Heat
Alternatives

Keywords

  • cold forging
  • temperature
  • FE simulation
  • heat transfer analysis
  • heat-flux-density functions

Cite this

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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.",
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A method for the simulation of temperature stabilisation during multi-cycle cold forging operations. / Qin, Y; Balendra, R; Chodnikiewicz, K.

In: Journal of Materials Processing Technology, Vol. 107, No. 1-3, 22.11.2000, p. 252-259.

Research output: Contribution to journalArticle

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