THEORETICAL ANALYSIS OF SEPARATING PROCESS AT HOT CUTTING BY SHEARS
DOI:
https://doi.org/10.20535/2305-9001.2012.64.44369Keywords:
damage evolution model, shears, cutting forceAbstract
Purpose. Theoretical analysis of metal separating process during the hot cutting by shears for expansion the idea about the process and law of damage evolution to influence the curve of cutting force at the mathematical simulation. Project/methodology/approach. The finite-elements model of hot cutting process by shears is developed. On the first research stage it was performed a comparison of simulation results and experimental data. It was obtained a good coincidence for the dependencies of cutting force and ingot geometry after cutting. And the function of damages evolution has a complex image. On the second stage the analysis of damages evolution model to influence the curve of cutting force was done. Findings. The damages evolution regularities substantially to influence the results of mathematical simulation of hot cutting process by shears. Declining intensity of damage evolution in the metal promotes the approximation of calculation values of cutting force to experimental data. It is specified, that using the curves of cutting force one can get information about the damages evolution regulations. There is a necessity to carry on wider range of researches for expansion the idea about the process. Originality/value. Job results can be used for the analyses of separation operations in a rolling production.References
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