中国塑料2026，Vol.40Issue(8)：77-85,9.DOI:10.19491/j.issn.1001-9278.2026.08.013
铣削工艺参数对不同PLA基复合颗粒材料表面质量的影响
Effect of milling parameters on surface quality of 3D-printed PLA and PLA-based composite parts
摘要
Abstract
To overcome the poor surface finish and low dimensional accuracy inherent in parts fabricated by pellet-based 3D printing,post-processing milling was employed as a finishing operation.In this study,the effects of feed rate(Vf),cutting depth(ap),and spindle speed(n)on surface roughness(Ra)and burr height(Rz)were systematically investigat-ed for neat PLA specimens,and the optimal parameter combination was identified.The optimized milling conditions were then applied to 3D-printed PLA/carbon fiber(CF)and PLA/graphite(Gr)composites,and the resulting varia-tions in Ra and Rz were characterized.Experimental results indicate that milling significantly improves surface quality.For neat PLA,Ra decreased from 6.22 to 3.86 μm(38%reduction);for PLA/CF composites,from 6.18 to 2.26 μm(63%reduction);and for PLA/Gr,from 4.4 to 0.96 μm(78%reduction).Burr height Rz also exhibited marked de-clines:neat PLA dropped from 33.21 to 18.61 μm(44%reduction),PLA/CF composites from 28.52 to 16.64 μm(42%reduction),and PLA/Gr composites from 24.23 to 14.68 μm(39%reduction).These findings demonstrate that appropriate selection of feed rate,cutting depth,and spindle speed can substantially enhance the surface quality and overall performance of additively manufactured polymer components.关键词
颗粒料/打印/铣削加工/工艺参数/表面粗糙度/复合材料Key words
granular material/printing/milling process/process parameter/surface roughness/composite分类
化学化工引用本文复制引用
梁雨心,钱波,刘彪强,陈治强..铣削工艺参数对不同PLA基复合颗粒材料表面质量的影响[J].中国塑料,2026,40(8):77-85,9.基金项目
国家重点研发计划项目(2018YFB1105300) （2018YFB1105300）
