3D打印ABS材料的拉伸强度测量不确定度评估

Uncertainty Evaluation on Tensile Strength of ABS Made by 3D Print Technology

本文选用ABS材料,使用美国Stratasys公司FORTUS380mc型3D打印机制作的拉伸试样,按照GB/T 1040.1-2018中规定的方法测试其拉伸强度。讨论了拉伸强度测量不确定度的主要来源,并评估本次试验的测量不确定度。评估结果表明:使用3D打印技术制作的试样,其外观尺寸较为稳定,但是单个试样之间的力学性能存在较大差异。

In this paper,ABS material was selected and FORTUS380 mc 3D printer from stratasysof USA was used to print tensile samples,the tensile strength was tested according to the method specified in GB/T 1040.1-2018,and the main sources of uncertainty of tensile strength measurement are discussed and the uncertainty of measurement in this test is evaluated.The evaluation results showed that the sample made by 3D printing technology was stable in appearance and size,but the mechanical properties of individual samples were quite different.