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基于FDM工艺,实验研究了不同分层高度对3D打印制品力学性能和表面质量的影响。结果表明:一定范围内,随着分层高度的增加,制品拉伸强度逐渐降低,而断裂伸长率则逐渐升高;在成型方向上,随着分层高度的增加,表面粗糙度增加,同时沉积层的表面轮廓由三角形逐渐向半圆形过渡,而垂直于成型方向的轮廓线,无明显尺寸精度变化,表明与分层高度相关性较小。
Based on the FDM process, the effect of different layering height on the mechanical properties and surface quality of 3D printed products was experimentally studied. The results show that the tensile strength of the product gradually decreases and the elongation at break increases gradually with the increase of the height of the stratification within a certain range. The surface roughness increases with the height of the stratification in the forming direction, At the same time, the surface profile of the sedimentary layer transitions from triangle to semicircle gradually, while the contour line perpendicular to the forming direction has no obvious change of dimensional accuracy, indicating a low correlation with the height of stratification.