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Study of Reinforcement Distribution,Adhesion between Layers,and Porosity Induced by FDM 被引量:1
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作者 Arthur Wernke Rafael dos Santos +2 位作者 Leonardo Santos Manuel Barcelos Jr Emmanuel Lima 《材料科学与工程(中英文A版)》 2021年第2期56-62,共7页
This study aims to understand the distribution of reinforcement material in the matrix,evaluate the adherence between layers,and determine the air gap between printing roads.We printed the specimen with two different ... This study aims to understand the distribution of reinforcement material in the matrix,evaluate the adherence between layers,and determine the air gap between printing roads.We printed the specimen with two different composite materials,Polylactic Acid(PLA)reinforced with acrylic particles,and another filament reinforced with short carbon fibers.For the observations of the samples,we used a Confocal Microscope.We estimated the porosity of the material by comparing the expected mass with that achieved after manufacture.By pixel count,after binarization,we found the average percentage of acrylate particulate.They showed fair distribution through the PLA matrix even after the manufacturing process.The determination of fibers alignment was made by binarization of image,together with k-means and edge detection.This combination of methods allows estimating the fiber alignment by orientation straight lines.The manufacturing process did not offer good alignment of the fibers,even with the filament initially well aligned. 展开更多
关键词 3D printing porosity in 3D printed parts 3D printed composite materials
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