ADDITIVE MANUFACTURING OF POLYMER FUNCTIONAL CELLULAR STRUCTURES WITH SHAPE MEMORY EFFECT USING FDM TECHNOLOGY

The paper investigates the effect of printing modes using FDM technology and annealing heat treatment on the ratio of recovery to the original shape and temporary shape fixation on samples made of elastic polymers with shape memory effect. The experiments showed that for all the studied polymers, the optimal recovery ratio is achieved by selecting the printing mode with an upper limit in the extrusion temperature range recommended by the manufacturer and annealing to remove residual stresses. The results of the conducted investigation showed the optimal values of the recovery and shape fixation ratios equal to 98.6% and 94.5%, respectively.