Abstract
An upper-bound analysis is conducted for the newly introduced material processing method, “dual equal channel lateral extrusion”. The strain attained in the process is calculated by via the mean effective strain rate and deformation time, and then incorporated with the upper-bound formulation on power to yield an estimation of the extrusion pressure needed for the process. The estimated strain shows a good agreement with the previous works done for “channel angular deformation” which presumed an ideal deformation mode. The analytical extrusion pressure is then compared with the values obtained by experiments and showed that the analysis is capable of a good assessment of the process.
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