Compressive Mechanical Properties of Three-Dimensional (3D) Printed Thermoplastics

Raymond K.F. Lam

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Conference: 2021 ASEE St. Lawrence Section Conference
Location: Virtual
Publication Date: April 17, 2021
Start Date: April 17, 2021
End Date: April 17, 2021
Page Count: 16
DOI: 10.18260/1-2--38293
Permanent URL: https://peer.asee.org/38293
Download Count: 295

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Paper Authors

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Raymond K.F. Lam Queensborough Community College, City University of New York

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Assistant professor of Engineering Technology Department of Queensborough Community College, City University of New York in Bayside, New York. He holds a Doctor of Science degree in Materials Science & Engineering from Massachusetts Institute of Technology, and a Master of Science degree and a Bachelor of Science degree in Mechanical Engineering from University of Hawaii at Manoa.
Email: rlam@qcc.cuny.edu

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Abstract

CONFERENCE 2021 ASEE St. Lawrence Section Annual Conference in collaboration with the 2021 New York Cyber Security and Engineering Technology Association (NYSETA) Spring Conference.

[The abstract and the paper have been accepted by the 2020 ASEE St. Lawrence Section Annual Conference in collaboration with the 2020 New York Cyber Security and Engineering Technology Association (NYSETA) Spring Conference.]

CONFERENCE TRACK Engineering at the Intersections of Design, the Arts and Technology

CONTRIBUTION TYPE Full paper

PAPER TITLE Compressive Mechanical Properties of Three-Dimensional (3D) Printed Thermoplastics

AUTHORS Raymond K.F. Lam, Michael Orozco, Erick Mendieta, Bernard Hunter, and Joseph Seiter

ABSTRACT Engineering components printed by 3-dimensional (3D) printers are employed as mechanical structures in an assembly. In order for the printed components to be useful for engineering applications, mechanical properties of printed components must be known for structural design. The properties provide answers to the strength of the material, the types of stresses a component can endure before failure, and the size of a component based on the loads it experiences. This paper reports the research project that focused on the investigation of compressive mechanical properties and microstructures of 3D printed thermoplastics including acrylonitrile butadiene styrene (ABS), acrylonitrile styrene acrylate (ASA), PolyJet material, and nylon/carbon fiber composite material. Test specimens were manufactured using the three-dimensional printing technologies of Fused Deposition Modeling and Liquid Jet employed by multiple 3D printers including Stratasys uPrint SE Plus Printer, Stratasys Fortus 450mc Printer, Stratasys J750 Digital Anatomy Printer, Stratasys Mojo Printer, Stratasys Objet30 Printer, and MakerBot Replicator Z18 Printer. The test specimens of 13 mm in diameter and 20 mm in height were printed at raster orientation angles of 0 degree, 45 degrees, and 90 degrees, and at build orientations of up-right and flat to determine directional properties of the materials. The specimens were further printed with solid and sparse internal structures at each combination of raster angle and build orientation. Two specimens at each internal structure, raster angle and build orientation combination were printed in the same printing run for comparison testing. The test specimens were subject to compression testing. A universal testing machine, PASCO ME-8244 Comprehensive Materials Testing System with 7100 N capacity, was employed to measure applied force and deformation of the test specimen under compression. Stress and strain measurements were calculated and recorded by the testing machine. A scanning electron microscope, Hitachi TM-3030 Tabletop Scanning Electron Microscope with 15 kV accelerating voltage capacity, was utilized to examine specimen microstructures before and after the compression test for correlating effects of microstructure to stress and strain data. Failure mode was investigated. Engineering compressive stress, engineering compressive strain, ultimate compressive strength, ultimate compressive strain, yield strength, yield strain, modulus of elasticity, Poisson’s ratio, compressive deformation, and microstructure effects on the compressive properties for each combination of internal structure, raster orientation angle and build orientation were determined. Compressive mechanical properties and microstructures of 3D printed thermoplastics were compared.

AUTHOR BIOGRAPHY Dr. Raymond K.F. Lam Assistant professor of Engineering Technology Department of Queensborough Community College in Bayside, New York. He holds a Doctor of Science degree in Materials Science & Engineering from Massachusetts Institute of Technology, and a Master of Science degree and a Bachelor of Science degree in Mechanical Engineering from University of Hawaii at Manoa. Email: rlam@qcc.cuny.edu

Mr. Michael Orozco, Undergraduate Mechanical Engineering Technology student in Engineering Technology Department of Queensborough Community College in Bayside, New York. Email: Michael.orozco22@student.qcc.cuny.edu

Mr. Erick Mendieta Undergraduate Mechanical Engineering Technology student in Engineering Technology Department of Queensborough Community College in Bayside, New York. Email: Erick.mendieta64@student.qcc.cuny.edu

Mr. Bernard Hunter Technical assistant in Engineering Technology Department of Queensborough Community College in Bayside, New York. Email: bhunter@qcc.cuny.edu

Mr. Joseph Seiter Technical assistant in Engineering Technology Department of Queensborough Community College in Bayside, New York. Email: jseiter@qcc.cuny.edu

This abstract is an abstract from last year, the conference organizers offered a resubmit for presentation this year since last year’s conference was canceled.

Citation
Format

Lam, R. K. (2021, April), Compressive Mechanical Properties of Three-Dimensional (3D) Printed Thermoplastics Paper presented at 2021 ASEE St. Lawrence Section Conference, Virtual. 10.18260/1-2--38293

TY - CPAPER
AB - CONFERENCE
2021 ASEE St. Lawrence Section Annual Conference in collaboration with the 2021 New York Cyber Security and Engineering Technology Association (NYSETA) Spring Conference.

[The abstract and the paper have been accepted by the 2020 ASEE St. Lawrence Section Annual Conference in collaboration with the 2020 New York Cyber Security and Engineering Technology Association (NYSETA) Spring Conference.]

CONFERENCE TRACK
Engineering at the Intersections of Design, the Arts and Technology

CONTRIBUTION TYPE
Full paper

PAPER TITLE
Compressive Mechanical Properties of Three-Dimensional (3D) Printed Thermoplastics

AUTHORS
Raymond K.F. Lam, Michael Orozco, Erick Mendieta, Bernard Hunter, and Joseph Seiter

ABSTRACT
Engineering components printed by 3-dimensional (3D) printers are employed as mechanical structures in an assembly. In order for the printed components to be useful for engineering applications, mechanical properties of printed components must be known for structural design. The properties provide answers to the strength of the material, the types of stresses a component can endure before failure, and the size of a component based on the loads it experiences.
This paper reports the research project that focused on the investigation of compressive mechanical properties and microstructures of 3D printed thermoplastics including acrylonitrile butadiene styrene (ABS), acrylonitrile styrene acrylate (ASA), PolyJet material, and nylon/carbon fiber composite material. Test specimens were manufactured using the three-dimensional printing technologies of Fused Deposition Modeling and Liquid Jet employed by multiple 3D printers including Stratasys uPrint SE Plus Printer, Stratasys Fortus 450mc Printer, Stratasys J750 Digital Anatomy Printer, Stratasys Mojo Printer, Stratasys Objet30 Printer, and MakerBot Replicator Z18 Printer.
The test specimens of 13 mm in diameter and 20 mm in height were printed at raster orientation angles of 0 degree, 45 degrees, and 90 degrees, and at build orientations of up-right and flat to determine directional properties of the materials. The specimens were further printed with solid and sparse internal structures at each combination of raster angle and build orientation. Two specimens at each internal structure, raster angle and build orientation combination were printed in the same printing run for comparison testing. The test specimens were subject to compression testing. A universal testing machine, PASCO ME-8244 Comprehensive Materials Testing System with 7100 N capacity, was employed to measure applied force and deformation of the test specimen under compression. Stress and strain measurements were calculated and recorded by the testing machine. A scanning electron microscope, Hitachi TM-3030 Tabletop Scanning Electron Microscope with 15 kV accelerating voltage capacity, was utilized to examine specimen microstructures before and after the compression test for correlating effects of microstructure to stress and strain data. Failure mode was investigated. Engineering compressive stress, engineering compressive strain, ultimate compressive strength, ultimate compressive strain, yield strength, yield strain, modulus of elasticity, Poisson’s ratio, compressive deformation, and microstructure effects on the compressive properties for each combination of internal structure, raster orientation angle and build orientation were determined. Compressive mechanical properties and microstructures of 3D printed thermoplastics were compared.

AUTHOR BIOGRAPHY
Dr. Raymond K.F. Lam
Assistant professor of Engineering Technology Department of Queensborough Community College in Bayside, New York. He holds a Doctor of Science degree in Materials Science &amp;amp; Engineering from Massachusetts Institute of Technology, and a Master of Science degree and a Bachelor of Science degree in Mechanical Engineering from University of Hawaii at Manoa.
Email: rlam@qcc.cuny.edu

Mr. Michael Orozco,
Undergraduate Mechanical Engineering Technology student in Engineering Technology Department of Queensborough Community College in Bayside, New York.
Email: Michael.orozco22@student.qcc.cuny.edu

Mr. Erick Mendieta
Undergraduate Mechanical Engineering Technology student in Engineering Technology Department of Queensborough Community College in Bayside, New York.
Email: Erick.mendieta64@student.qcc.cuny.edu

Mr. Bernard Hunter
Technical assistant in Engineering Technology Department of Queensborough Community College in Bayside, New York.
Email: bhunter@qcc.cuny.edu

Mr. Joseph Seiter
Technical assistant in Engineering Technology Department of Queensborough Community College in Bayside, New York.
Email: jseiter@qcc.cuny.edu

This abstract is an abstract from last year, the conference organizers offered a resubmit for presentation this year since last year’s conference was canceled.

AU - Raymond K.F. Lam
CY - Virtual
DA - 2021/04/17
PB - ASEE Conferences
TI - Compressive Mechanical Properties of Three-Dimensional (3D) Printed Thermoplastics
UR - https://peer.asee.org/38293
DO - 10.18260/1-2--38293
ER -