Please use this identifier to cite or link to this item: https://hdl.handle.net/10356/75005
Title: Non-destructive testing of 3D printed specimens
Authors: Ng, Cheong Hong
Keywords: DRNTU::Engineering
Issue Date: 2018
Abstract: Additive Manufacturing or 3D printing is becoming the mainstream manufacturing technology to produce parts with complex structure to achieve highest strength-to-weight ratio. Many companies are developing proprietary 3D materials and offering them as alternative to the conventional materials. In this study, 4 specimens with different thickness were 3D printed with Markforged Onyx, a proprietary Nylon material reinforced with chopped carbon fibre. They were all tested with two main ultrasonic testing techniques: pulse-echo and through transmission. Ultrasonic signal reflection was detected when testing the specimens however the signals were more complex compared to the reference metal material hence the detailed studies were also done on the signal with the change in thickness in order to assess the material properties in qualitatively manner. This study attempts to establish the basic ultrasonic testing parameters and analysis method for Markforged Onxy and this is believed to be the first non-destructive testing study on this proprietary material.
URI: http://hdl.handle.net/10356/75005
Rights: Nanyang Technological University
Fulltext Permission: restricted
Fulltext Availability: With Fulltext
Appears in Collections:MAE Student Reports (FYP/IA/PA/PI)

Files in This Item:
File Description SizeFormat 
NgCheongHong_FYP_2018.pdf
  Restricted Access
Main Report3.7 MBAdobe PDFView/Open

Page view(s) 20

109
checked on Oct 25, 2020

Download(s) 20

18
checked on Oct 25, 2020

Google ScholarTM

Check

Items in DR-NTU are protected by copyright, with all rights reserved, unless otherwise indicated.