Mechanical Property Testing and Analysis of 3D Printing Objects

2016 ◽  
Author(s):  
Xiaobin Le ◽  
Rami Akouri ◽  
Anthony Latassa ◽  
Brett Passemato ◽  
Ryan Wales
Keyword(s):  
Mechanical Property ◽  
Additive Manufacturing ◽  
3D Printing ◽  
Tensile Test ◽  
Acrylonitrile Butadiene Styrene ◽  
Material Strength ◽  
Original Material ◽  
Tensile Test Specimen ◽  
3D Objects ◽  
Nylon 12

3D printing known as additive manufacturing has been widely used in academics and industries to make various 3D objects for various applications. The strength of the 3D printing parts is different from its original material strength due to this additive manufacturing technique. The 3D printing parts should be treated as anisotropic materials. However, the information of mechanical property such as the ultimate strength of 3D printing parts is very limited. There is little information about the mechanical property of 3D printing parts at different print angles. This research was focused on exploring the mechanical properties of 3D printing objects. The tensile test specimen of two different materials: acrylonitrile butadiene styrene-electrostatic dissipative (ABS-ESD) and Nylon 12 were printed at the 5 different print angles through the Fortus 450mc 3D printer. Tensile test results, data analysis, detailed discussion and the empirical formula of the tensile strength of 3D printing objects vs different print angles will be presented.

scholarly journals Electromechanical Assessment and Induced Temperature Measurement of Carbon Fiber Tows under Tensile Condition

Materials ◽  
2020 ◽  
Vol 13 (19) ◽  
pp. 4234
Author(s):  
Samir Mekid ◽  
Hammam Daraghma ◽  
Salem Bashmal
Keyword(s):  
Carbon Fiber ◽  
3D Printing ◽  
Tensile Test ◽  
Thermal Characteristics ◽  
Acrylonitrile Butadiene Styrene ◽  
Break Point ◽  
Host Material ◽  
Special Focus ◽  
Host Materials ◽  
Butadiene Styrene

The paper presents an investigation and analysis of the electromechanical and thermal characteristics of the carbon fiber alone as single tow and embedded in host materials such as polymer e.g., acrylonitrile butadiene styrene (ABS) using 3D printing. While carbon fibers can partially reinforce the structure, they can act as sensors to monitor the structural health of the host material. The piezo-resistive behavior was examined without any pretreatment of the carbon fiber under tensile test in both cases. Special focus on the filaments clamping types and their effects was observed. An auxetic behavior was exhibited; otherwise, the free part shows elastic and yielding ranges with break point at high resistance. An induced temperature of the carbon fiber was measured during the tensile test to show low variation. The carbon fiber can provide strength contribution to the host material depending on the percentage of filling the material in 3D printing. The relative variation of the electrical resistance increases by 400% while embedded in the host material, but decreases as the tows filament density increases from 1 to 12 K.

History of Additive Manufacturing

2017 ◽  
pp. 1-24 ◽  
Keyword(s):  
Additive Manufacturing ◽  
3D Printing ◽  
Large Scale ◽  
Selective Laser Sintering ◽  
3D Printer ◽  
3D Objects ◽  
History Of ◽  
Pros And Cons ◽  
3D Printed ◽  
The Common

History of additive manufacturing started in the 1980s in Japan. Stereolithography was invented first in 1983. After that tens of other techniques were invented under the common name 3D printing. When stereolithography was invented rapid prototyping did not exists. Tree years later new technique was invented: selective laser sintering (SLS). First commercial SLS was in 1990. At the end of 20t century, first bio-printer was developed. Using bio materials, first kidney was 3D printed. Ten years later, first 3D Printer in the kit was launched to the market. Today we have large scale printers that printed large 3D objects such are cars. 3D printing will be used for printing everything everywhere. List of pros and cons questions rising every day.

scholarly journals Detailed Thermal Characterization of Acrylonitrile Butadiene Styrene and Polylactic Acid Based Carbon Composites Used in Additive Manufacturing

Polymers ◽  
2020 ◽  
Vol 12 (12) ◽  
pp. 2960
Author(s):  
Zoltan Ujfalusi ◽  
Attila Pentek ◽  
Roland Told ◽  
Adam Schiffer ◽  
Miklos Nyitrai ◽  
...  
Keyword(s):  
Additive Manufacturing ◽  
3D Printing ◽  
Thermal Hysteresis ◽  
Acrylonitrile Butadiene Styrene ◽  
Thermal Characterization ◽  
Carbon Composites ◽  
Biomedical Sensors ◽  
Temperature Range ◽  
Ohmic Resistance ◽  
Significant Difference

Currently, 3D printing is an affordable technology for industry, healthcare, and individuals. Understanding the mechanical properties and thermoplastic behaviour of the composites is critical for the users. Our results give guidance for certain target groups including professionals in the field of additive manufacturing for biomedical components with in-depth characterisation of the examined commercially available ABS and PLA carbon-based composites. The study aimed to characterize these materials in terms of thermal behaviour and structure. The result of the heating-cooling loops is the thermal hysteresis effect of Ohmic resistance with its accommodation property in the temperature range of 20–84 °C for ESD-ABS and 20–72 °C for ESD-PLA. DSC-TGA measurements showed that the carbon content of the examined ESD samples is ~10–20% (m/m) and there is no significant difference in the thermodynamic behaviour of the basic ABS/PLA samples and their ESD compounds within the temperature range typically used for 3D printing. The results support the detailed design process of 3D-printed electrical components and prove that ABS and PLA carbon composites are suitable for prototyping and the production of biomedical sensors.

scholarly journals Digital light processing 3D printing of modified liquid isoprene rubber using thiol-click chemistry

RSC Advances ◽  
2020 ◽  
Vol 10 (40) ◽  
pp. 23607-23614
Author(s):  
Lara Strohmeier ◽  
Heike Frommwald ◽  
Sandra Schlögl
Keyword(s):  
Additive Manufacturing ◽  
3D Printing ◽  
Click Chemistry ◽  
Good Resolution ◽  
Digital Light Processing ◽  
3D Objects ◽  
Liquid Rubber ◽  
Reactive Liquid ◽  
Isoprene Rubber

Elastomer-based 3D objects with good resolution are fabricated by additive manufacturing of photo-reactive liquid rubber formulations with digital light processing.

scholarly journals Design and Development of Plastic Filament Extruder for 3D Printing

2018 ◽  
Vol 10 (3) ◽  
pp. 23 ◽  
Author(s):  
Mamta H. Wankhade ◽  
Satish G. Bahaley
Keyword(s):  
Additive Manufacturing ◽  
3D Printing ◽  
Three Dimensional ◽  
3D Printer ◽  
3D Objects ◽  
Fused Deposition ◽  
Additive Manufacturing Technology ◽  
Mechanized Method ◽  
Dimensional Object ◽  
The Cost

<p>3D printing is a form of additive manufacturing technology where a three dimensional object is created by laying down successive layers of material. It is mechanized method whereby 3D objects are quickly made on a reasonably sized machine connected to a computer containing blueprints for the object. As 3D printing is growing fast and giving a boost to product development, the factories doing 3D printing need to continuously meet the printing requirements and maintain an adequate amount of inventory of the filament. As the manufactures have to buy these filaments from various vendors, the cost of 3D printing increases. To overcome the problem faced by the manufacturers, small workshop owners, the need of 3D filament making machine arises. This project focuses on designing and fabricating a portable fused deposition 3D printer filament making machine with cheap and easily available components to draw 1.75 mm diameter ABS filament.</p>

scholarly journals Optimization of Abs 3D-Printing Method and Parameters

1970 ◽  
Vol 3 (1) ◽  
pp. 44-51
Author(s):  
Paweł Żur ◽  
Alicja Kołodziej ◽  
Andrzej Baier ◽  
Grzegorz Kokot
Keyword(s):  
3D Printing ◽  
Tensile Test ◽  
Acrylonitrile Butadiene Styrene ◽  
Fused Deposition Modelling ◽  
Fused Deposition ◽  
Electric Car ◽  
University Of Technology ◽  
Static Tensile ◽  
3D Printed ◽  
Printing Method

The paper presents research on the method of 3D-printing ABS (Acrylonitrile butadiene styrene). Series of specimens were 3D-printed in FDM (Fused Deposition Modelling) technology with variable parameters. The influence of the following parameters has been checked: temperature of printing and infill density. Moreover, the material properties of raw, unprocessed ABS have been inspected. The tensile strength of specimens and Young’s modulus have been determined in a static tensile test. Tests were carried out in compliance with the ASTM D638-14 standard. Obtained results were then compared with the material datasheet. Optimum printing method has been defined. The carried out research resulted in optimizing the printing method for ABS vehicle parts applied in Silesian Greenpower electric car. The car has been developed by students of The Silesian University of Technology in Gliwice, Poland as an interfaculty students’ project. Results of the tensile test research have been analysed and discussed and conclusions have been presented in the following article.

scholarly journals Surface functionalization of 3D-printed plastics via initiated chemical vapor deposition

2017 ◽  
Vol 8 ◽  
pp. 1629-1636 ◽  
Author(s):  
Christine Cheng ◽  
Malancha Gupta
Keyword(s):  
Chemical Vapor Deposition ◽  
3D Printing ◽  
Vapor Deposition ◽  
Photoelectron Spectroscopy ◽  
Chemical Vapor ◽  
Acrylonitrile Butadiene Styrene ◽  
Poly Lactic Acid ◽  
Material Strength ◽  
Initiated Chemical Vapor Deposition ◽  
3D Printed

3D printing is a useful fabrication technique because it offers design flexibility and rapid prototyping. The ability to functionalize the surfaces of 3D-printed objects allows the bulk properties, such as material strength or printability, to be chosen separately from surface properties, which is critical to expanding the breadth of 3D printing applications. In this work, we studied the ability of the initiated chemical vapor deposition (iCVD) process to coat 3D-printed shapes composed of poly(lactic acid) and acrylonitrile butadiene styrene. The thermally insulating properties of 3D-printed plastics pose a challenge to the iCVD process due to large thermal gradients along the structures during processing. In this study, processing parameters such as the substrate temperature and the filament temperature were systematically varied to understand how these parameters affect the uniformity of the coatings along the 3D-printed objects. The 3D-printed objects were coated with both hydrophobic and hydrophilic polymers. Contact angle goniometry and X-ray photoelectron spectroscopy were used to characterize the functionalized surfaces. Our results can enable the use of iCVD to functionalize 3D-printed materials for a range of applications such as tissue scaffolds and microfluidics.

scholarly journals Influência da Densidade de Preenchimento e do Número de Perímetros nas Propriedades Mecânicas de Peças Fabricadas em PLA a Partir de Impressão 3D

2020 ◽  
Vol 5 ◽  
pp. 33
Author(s):  
Magno Medeiros ◽  
Marlon Da Silva ◽  
Daniella De Oliveira ◽  
Fábio Dos Santos ◽  
Luanda Kívia Rodrigues
Keyword(s):  
Mechanical Properties ◽  
Additive Manufacturing ◽  
3D Printing ◽  
Tensile Test ◽  
Key Words ◽  
Mechanical Stresses ◽  
Mechanical Resistance ◽  
Molten Material ◽  
Know How ◽  
Printing Parameters

<p>With the dissemination of the additive manufacturing by deposition of molten material, popularly known as 3D printing, studies on the mechanical properties of the pieces manufactured through this process are necessary to increase the understanding of their behaviors, as well as to know how to expand the application horizons of the technology in the manufacture of items that will<br />work under mechanical stresses. Therefore, the aim of this article is to analyze the influence of two printing parameters (number of perimeters and filling density) on the mechanical properties of specimens manufactured in PLA from 3D printing. For the study, the specimens made of PLA filament with a diameter of 1.75 mm, using the FDM technique and a 3D Cloner DH Plus model machine, were submitted to tensile test. From the analyzes carried out, it was possible to verify that the number of perimeters is more relevant with regard to the mechanical resistance to traction. The results were satisfactory and allow to trace interesting parallels with the data obtained in other studies used as references in present work.</p><p><br /><strong>Key words</strong>: PLA; 3D printing; number of perimeters; filling density; mechanical properties.</p><p>==================================================================</p><p>Com a disseminação da manufatura aditiva por deposição de material fundido, popularmente conhecida como impressão 3D, fazem-se necessários estudos a respeito das propriedades mecânicas das peças fabricadas por este processo a fim de aumentar a compreensão do comportamento destes objetos e expandir os horizontes de aplicação da tecnologia na fabricação de itens que irão trabalhar sob solicitações mecânicas. Portanto, o objetivo deste artigo é analisar a influência de dois parâmetros de impressão (número de perímetros e densidade de preenchimento) sobre as propriedades mecânicas de corpos de prova fabricados em PLA a partir da impressão 3D. Para o estudo, os corpos de prova foram confeccionados a partir do filamento de PLA com diâmetro de 1,75 mm, por meio da técnica FDM, utilizando uma máquina 3D Cloner, modelo DH Plus, e submetidos ao ensaio de tração. A partir das análises efetuadas, foi possível constatar que o parâmetro “número de perímetros” é mais relevante no que tange a resistência mecânica à tração. Os resultados foram satisfatórios e permitem traçar paralelos interessantes com dados obtidos em outros estudos utilizados como referência na elaboração deste artigo.</p><p><br /><strong>Palavras-chave</strong>: PLA; impressão 3D; número de perímetros; densidade de preenchimento; propriedades mecânicas</p>

Variety of Current Power Welding Using Electrode 6013 on Tensile Force of Lower Carbon Metal

2018 ◽  
Vol 7 (2.13) ◽  
pp. 362
Author(s):  
Ahmad Bakhori ◽  
Muksin R. Harahap ◽  
Suhardi Napid ◽  
Muhammad Rafiq Yanhar ◽  
Abdurrozzaq Hasibuan
Keyword(s):  
Mechanical Property ◽  
Carbon Steel ◽  
Tensile Test ◽  
Test Specimen ◽  
Tensile Force ◽  
Welding Current ◽  
Steel Electrode ◽  
Tensile Test Specimen ◽  
Welding Position ◽  
Lower Carbon

The objective of this study is to determine the outstanding tensile value on welding of little carbonate steel electrode 6013/ Ө 2.5 x 350 mm in tensile test. Specimen in tested is a lower carbon steel found in market or sometimes available on welding workshops of plate form. This plate is made refer to Standard Tensile Test specimen ASTM E-8M in thick 5 mm and made plot V 450 in twelve pieces. In welding specimen, inflow current varieties with 60, 80, 100, 120 Ampere and constant power of 20 volt and welding position tilted ranges 600 – 700.  In the test found data the lowest tensile strength is 160.62 Mpa of welding current power 60 Ampere and the greatest tensile force 438.80 Mpa with welding power 120 Ampere whereas welding most adaptable is on 80 Ampere 325.96 Mpa. The power force of welding determined to tensile force due electrode fluid completed and influenced to that lower carbon steel mechanical property.  

scholarly journals A New Approach to Micromachining: High-Precision and Innovative Additive Manufacturing Solutions Based on Photopolymerization Technology

Materials ◽  
2020 ◽  
Vol 13 (13) ◽  
pp. 2951 ◽  
Author(s):  
Paweł Fiedor ◽  
Joanna Ortyl
Keyword(s):  
Additive Manufacturing ◽  
3D Printing ◽  
Liquid Crystal Display ◽  
Three Dimensional ◽  
Digital Light Processing ◽  
3D Objects ◽  
Conscious Choice ◽  
Optical Applications ◽  
Manufacturing Technologies ◽  
Printing Processes

The following article introduces technologies that build three dimensional (3D) objects by adding layer-upon-layer of material, also called additive manufacturing technologies. Furthermore, most important features supporting the conscious choice of 3D printing methods for applications in micro and nanomanufacturing are covered. The micromanufacturing method covers photopolymerization-based methods such as stereolithography (SLA), digital light processing (DLP), the liquid crystal display–DLP coupled method, two-photon polymerization (TPP), and inkjet-based methods. Functional photocurable materials, with magnetic, conductive, or specific optical applications in the 3D printing processes are also reviewed.

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