Article
Polymer Science
Zhao Kai, Imjoo Jung, Sunhee Lee
Summary: The purpose of this study was to develop conductivity 3D printed fingertips and confirm their potential for use in a pressure sensor. Index fingertips were 3D printed using thermoplastic polyurethane filament with three types of infill patterns and densities. The coated 3DP index fingertips were analyzed for appearance property, weight changes, compressive property, and electrical property.
Article
Polymer Science
Jibran Khaliq, Dharma Raj Gurrapu, Farah Elfakhri
Summary: This study investigates the effects of infill line multipliers and different infill patterns on the mechanical properties of 3D printed hollow structures. The hexagonal infill pattern consistently demonstrated the highest Ultimate Tensile Strength (UTS), outperforming the other two patterns. This research highlights the importance of line multiplier, infill density, and infill patterns in achieving the desired mechanical properties.
Article
Engineering, Mechanical
Harshit K. Dave, Naushil H. Patadiya, Ashish R. Prajapati, Shilpesh R. Rajpurohit
Summary: Fused deposition modeling is a widely used additive manufacturing process that can create samples with complex geometrical shapes. This study explored the significant impact of part orientation, infill pattern, and infill density on tensile strength. Results showed that parts printed with flat part orientation and concentric pattern exhibited maximum tensile strength, while increasing infill density also increased tensile strength.
PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART C-JOURNAL OF MECHANICAL ENGINEERING SCIENCE
(2021)
Article
Materials Science, Multidisciplinary
Sanglae Kim, Alberto Andreu, Insup Kim, Jeong-Hwan Kim, Jiho Lee, Yong-Jin Yoon
Summary: This study proposes a layer stacking scheme that improves the mechanical properties and reduces printing time of FFF printed parts through a continuously varied infill pattern (ConVIP). The ConVIP method showed significant increases in tensile strength and elongation at break compared to the conventional infill pattern within PLA filament. Additionally, printing speed was increased by up to 29.37%. The results and relationship of process parameters were analyzed using confocal microscopy.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2022)
Article
Materials Science, Multidisciplinary
E. Mohan, M. Saravana Kumar
Summary: Fused filament fabrication is widely used in artificial tissue/bone engineering, but the mechanical properties of 3D printed PLA parts are not well studied. Infill density and print orientations are key parameters influencing the mechanical properties of 3D printed parts.
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING
(2022)
Article
Mathematics
Mahmoud Moradi, Mojtaba Karamimoghadam, Saleh Meiabadi, Giuseppe Casalino, Mohammad Ghaleeh, Bobymon Baby, Harikrishna Ganapathi, Jomal Jose, Muhammed Shahzad Abdulla, Paul Tallon, Mahmoud Shamsborhan, Mohammad Rezayat, Satyam Paul, Davood Khodadad
Summary: This paper investigates the 3D printing of poly vinyl alcohol (PVA) using the fused deposition modeling (FDM) process. The study focuses on varying the infill percentage and patterns as input parameters and measuring modulus, elongation at break, and weight as experimental responses. The results show that both input parameters significantly affect the output responses. The Design Expert software is used to identify the optimal parameters and analyze their interactions.
Article
Materials Science, Multidisciplinary
Gorrepotu Surya Rao, Ritam Paul, Samarjit Singh, Kishore Debnath
Summary: The demand for fast fabrication of customized composite parts with complex designs and intricate geometries has increased. Additive manufacturing (AM) is a cost-effective solution for producing these complex composite products in less time compared to conventional methods. This study focuses on the tensile characteristics of conventionally drilled and 3D-printed hole of ONYX/CGF-based 3D composite dog bone specimens. The results show that conventionally drilled composites exhibit better tensile strength than the 3D-printed hole counterparts. The optimal conditions for achieving maximum tensile strength in 3D-printed hole composites are triangular infill geometry, 50% infill density, and 0 degrees fiber orientation.
JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE
(2023)
Article
Materials Science, Multidisciplinary
K. Ravi Kumar, M. Gokul, M. Kumar
Summary: This study aimed to analyze the mechanical properties of polylactic acid composites reinforced with aluminum powder. The composites were fabricated using 3D printing based on fused deposition modeling. The printing parameters, such as layer thickness, nozzle temperature, printing speed, and infill density, were considered. Design of experiments and mathematical modeling were used to evaluate the mechanical properties and analyze the fracture mechanism. The results show that the strength of the composites is influenced by all the parameters considered in this study, and the fracture mechanism varies from ductile to brittle depending on the process parameters. This study provides valuable insights for researchers to fabricate industrial components using metal-infused polymer composites.
JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE
(2023)
Article
Polymer Science
Wenzheng Wu, Jialin Li, Jili Jiang, Qingping Liu, Aodu Zheng, Zheng Zhang, Ji Zhao, Luquan Ren, Guiwei Li
Summary: A new ultrasonic-assisted fused deposition modeling 3D-printing method was proposed to improve the mechanical properties of formed parts. By adjusting the ultrasonic vibration and temperature, the mechanical properties of formed samples can be controlled and the internal defects reduced.
Article
Chemistry, Physical
S. Ganeshkumar, S. Dharani Kumar, U. Magarajan, S. Rajkumar, B. Arulmurugan, Shubham Sharma, Changhe Li, R. A. Ilyas, Mohamed Fathy Badran
Summary: This research investigates the mechanical properties of different infill structures in 3D-printed objects and demonstrates that the hexagonal infill pattern shows remarkable mechanical properties compared to other patterns. By adjusting the infill density, the desired material strength can be obtained based on the application.
Article
Engineering, Electrical & Electronic
Mahmoud Moradi, Mohammad Rezayat, Fakhir Aziz Rasul Rozhbiany, Saleh Meiabadi, Giuseppe Casalino, Mahmoud Shamsborhan, Amar Bijoy, Sidharth Chakkingal, Mathews Lawrence, Nasli Mohammed, Mojtaba Karamimoghadam
Summary: The field of additive manufacturing has witnessed significant advancements in the production of intricate and complex parts. This study explores the world of FDM-printed PLA components and demonstrates remarkable improvements in mechanical properties through the optimization of infill percentages and layer widths.
Article
Materials Science, Characterization & Testing
Rhoda Afriyie Mensah, David Aronsson Edstrom, Oskar Lundberg, Vigneshwaran Shanmugam, Lin Jiang, Xu Qiang, Michael Forsth, Gabriel Sas, Mikael Hedenqvist, Oisik Das
Summary: This research analyzed the fire properties and tensile properties of 3D printed polylactide acid (PLA) parts with varying infill densities. The results showed that increasing infill density increased fuel load and sustained combustion, while it had no effect on the flammability rating of the parts. Additionally, the tensile strength and ductility of the parts increased with higher density.
Article
Polymer Science
Lotfi Hedjazi, Sofiane Guessasma, Sofiane Belhabib, Nicolas Stephant
Summary: This study investigates the potential of using ceramics-based filaments as a feedstock material in additive manufacturing. The results show that tensile performance of the PLA-ceramic (PLC) material is significantly restored for certain printing orientations, allowing for excellent stiffness and elongation-at-break performance. The printing angle is found to be a secondary factor affecting the tensile performance. However, the lack of mechanical transfer limits the achievement of high tensile strength.
Review
Engineering, Manufacturing
Pratiksha Awasthi, Shib Shankar Banerjee
Summary: This review article summarizes the latest advancements in FDM 3D printing of thermoplastic elastomeric materials, focusing on the development of FDM compatible new materials and improving printability. Strategies to overcome defects in 3D printed TPE parts and enhance mechanical properties are provided, along with discussion on future prospects in this rapidly progressing field.
ADDITIVE MANUFACTURING
(2021)
Article
Polymer Science
Feiyang He, Chenyan Xu, Muhammad Khan
Summary: In recent years, additive manufacturing technology has made significant progress in the fabrication of plastic components. However, there is limited fundamental modeling on the influence of materials, lubrication methods, layer thickness, and infill density on tribological properties in fused deposition modeling (FDM). This study experimentally investigates these effects and develops a reliable model that aligns well with measured friction coefficients.
Article
Polymer Science
Yah Yun Aw, Cheow Keat Yeoh, Muhammad Asri Idris, Pei Leng Teh, Wan Nurshaznie Elyne, Khairul Amali Hamzah, Shulizawati Aqzna Sazali
POLYMER-PLASTICS TECHNOLOGY AND MATERIALS
(2019)
Article
Polymer Science
Ka Wei Kam, Pei Leng Teh, Hakimah Osman, Cheow Keat Yeoh
JOURNAL OF APPLIED POLYMER SCIENCE
(2019)
Article
Materials Science, Multidisciplinary
Nur Hazira Najmi, Nur Farhana M. Yunos, Norinsan Kamil Othman, Muhammad Asri Idris
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2019)
Article
Materials Science, Composites
Khairul Amali Hamzah, Cheow Keat Yeoh, Mazlee Mohd Noor, Pei Leng Teh, Yah Yun Aw, Shulizawati Aqzna Sazali, Wan Mohd Arif Wan Ibrahim
Summary: This study investigates the influence of particulate reinforcement on the mechanical properties of 3D printed ABS. The results show that adding copper ferrite as a reinforcement significantly improves the tensile strength and hardness of ABS composite materials, as well as increases the thermal conductivity and electrical conductivity.
JOURNAL OF THERMOPLASTIC COMPOSITE MATERIALS
(2022)
Article
Materials Science, Characterization & Testing
Kam Ka Wei, Teh Pei Leng, Yeoh Cheow Keat, Hakimah Osman, Mohamad Syahmie Mohamad Rasidi
Article
Engineering, Multidisciplinary
Kam Ka Wei, Teh Pei Leng, Yeoh Cheow Keat, Hakimah Osman, Lim Bee Ying
COMPOSITES PART B-ENGINEERING
(2019)
Article
Polymer Science
Kam Ka Wei, Teh Pei Leng, Yeoh Cheow Keat, Hakimah Osman, Martin Sullivan, Woon Chun Hong, Lim Bee Ying, Mohamad Syahmie Mohamad Rasidi
Summary: The study investigated the impact of modified and unmodified GNP nano-fillers on the performance of filled materials. Results demonstrated that modified GNP nano-fillers enhanced mechanical properties but reduced thermal stability.
POLYMERS FOR ADVANCED TECHNOLOGIES
(2021)
Article
Polymer Science
Jin Luen Phua, Pei Leng Teh, Cheow Keat Yeoh, Chun Hong Voon
Summary: This research investigated the application of carbon black with different surface modification methods in epoxy resin composites, revealing changes in functional groups, structure, and BET surface area after modification. The mechanical properties of the composites improved after the addition of surface-modified carbon black, with a slight decrease in electrical conductivity.
Article
Polymer Science
Mei Ai Tan, Cheow Keat Yeoh, Pei Leng Teh, Nor Azura Abdul Rahim, Cheah Chie Song, Nor Shahira Shahkila Mansor
Summary: 3D printed PLA/ZnO composites were successfully fabricated and characterized for their mechanical and electrical properties. The study focused on the effects of printing parameters on the performance of the composites. The results showed that optimizing the infill density and raster angle could significantly improve the strength and modulus of the materials. Additionally, the addition of zinc oxide enhanced the electrical conductivity of the PLA composites.
JOURNAL OF POLYMER ENGINEERING
(2022)
Article
Polymer Science
Kang Wei Chew, Nor Azura Abdul Rahim, Pei Leng Teh, Nurfatin Syafiqah Abdul Hisam, Siti Salwa Alias
Summary: The development and commercialization of polyfluorene materials have been hindered by the progression of green emission spectrum during their decomposition. In this study, a solvent-tuned aggregated PFO film was constructed to slow down the material's thermal degradation behavior and improve its optical properties. By using a poor alcohol-based solvent in chloroform, the amount and distribution of aggregates in the film were adjusted. It was found that the quick evaporation of methanol at a lower boiling point limited the propagation of aggregates and resulted in a more transparent film. Additionally, the modulation of beta-phase conformation in PFO films led to red-shifted and broadened absorption spectra. The increase in methanol percentage also increased the beta-phase percentage. Both pristine and aggregated PFO films exhibited apparent changes in UV-Vis spectra and PL spectra during thermal degradation reactions. Furthermore, a 97:3 (chloroform:methanol) aggregated PFO film showed a more defined emission spectrum, indicating that the presence of beta-phase can suppress unwanted green emission.
Proceedings Paper
Engineering, Mechanical
W. M. Che, P. L. Teh, C. K. Yeoh, A. J. Jalilah
6TH INTERNATIONAL CONFERENCE ON APPLICATIONS AND DESIGN IN MECHANICAL ENGINEERING
(2019)
Proceedings Paper
Materials Science, Multidisciplinary
S. S. Aqzna, C. K. Yeoh, M. S. Idris, P. L. Teh, H. K. Amali, Y. Y. Aw
MATERIALS TODAY-PROCEEDINGS
(2019)
Proceedings Paper
Materials Science, Multidisciplinary
C. W. Heng, Teh Pei Leng, A. G. Supri, Yeoh Cheow Keat, Kathiravan Suppiah
MATERIALS TODAY-PROCEEDINGS
(2019)
Proceedings Paper
Materials Science, Multidisciplinary
Mohamad Saed Hussein, Teh Pei Leng, Abdul Razak Rahmat, Firuz Zainuddin, Yeoh Cheow Keat, Kathiravan Suppiah, Zyad Salem Alsagayar
MATERIALS TODAY-PROCEEDINGS
(2019)
Proceedings Paper
Materials Science, Multidisciplinary
N. Abu Bakar, J. Adnan, R. A. M. Osman, Z. A. Z. Jamal, M. A. Idris, W. M. F. Wan Nik
MATERIALS CHARACTERIZATION USING X-RAYS AND RELATED TECHNIQUES
(2019)