An Investigation on Mechanical Properties of PLA Produced by 3D Printing as an Implant Material

Say, Gorkem; Aytac, Ersin; Evcil, Ali; Savas, Mahmut A.

doi:10.1109/ismsit50672.2020.9254387

Cited by 4 publications

(3 citation statements)

References 8 publications

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“…These are the parameters that we tested, but there are numerous articles that combine different printing parameters or technologies with various types of materials to optimize the strength of the parts [25][26][27][28][29].…”

Section: Testing Probesmentioning

confidence: 99%

Research on Additive Technique Parameter Optimization for Robotic Gripper Construction

et al. 2023

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Designing an industrial robot gripper suitable for today’s industry is a challenging task due to the rapid evolution of products. Industrial robots are involved in machining, the transfer of parts, control and assembly, and the number of tasks performed by robots are increasing. Robots need to have the capability to adapt to new jobs consisting of new parts and new trajectories, and in most cases the preferred end effectors are grippers. In turn, grippers need to be flexible enough in order to cope with these changes. For this research, the authors propose a new gripper design which is capable of handling a large variety of parts with different sizes and shapes. In this research, an electrically actuated four-jaw gripper, with the capability of parallel movement of its jaws, is presented that also has the capability to fold the clamping jaws two by two and become a two-jaw gripper. Since the design is most suitable for additive manufacturing techniques, different additive techniques are analyzed for the manufacturing of the gripper. In the second part of the paper, different setups of the 3D printers are considered, such as infill percentage, raster angle and layer height. The main material on focus is a PET with grinded carbon-fiber reinforcement, but different materials are used for a better comparison of the rigidity of the system. This comparison is also presented in this article. The analysis of the material and 3D printing parameters are tested with Standard D638-14 probes used in a traction testing machine. After performing the traction test, the results are compared with FEA analysis. An optimal solution based on the experimental tests is proposed for the manufacture of the proposed gripper design.

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Section: Testing Probesmentioning

confidence: 99%

Research on Additive Technique Parameter Optimization for Robotic Gripper Construction

et al. 2023

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“…The effects of varying layer height on mechanical properties of PLA have been studied (Burge et al , 2020; Chacón et al , 2017; Jatti et al , 2019; Nugroho et al , 2018; Rajpurohit and Dave, 2019; Sood et al , 2010; Tao et al , 2020; Ting et al , 2017; Wang et al , 2017) whose reduction led to increased bonding strength with improvements in tensile, flexural and impact properties. On investigating the effect of build orientation, it was found that specimens placed flat on the build plate provided better mechanical properties than those fabricated at inclined and upright positions (Chacón et al , 2017; Hsueh et al , 2021; Sood et al , 2010; Tao et al , 2020).…”

Section: Introductionmentioning

confidence: 99%

“…On studying the effect of infill pattern on tensile strength of PLA, concentric pattern with minimum voids resulted in maximum tensile strength, followed by 3D honeycomb, honeycomb and rectilinear patterns (Son et al , 2020). The lowered values of air gap and increase in infill density resulted in improved diffusion between adjacent rasters and layers, respectively (Aloyaydi et al , 2019; Burge et al , 2020; Jatti et al , 2019; Son et al , 2020; Sood et al , 2010). The improved crystallization and bonding at high extruder temperatures helped in improvement of tensile strength of fabricated parts (Farashi and Vafaee, 2022).…”

Section: Introductionmentioning

confidence: 99%

Parametric experimental investigation of additive manufacturing-based distal ulna bone plate: a response surface methodology-based design approach

Sharma

Gupta

Mudgal

2023

RPJ

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Purpose The implications of metallic biomaterials involve stress shielding, bone osteoporosis, release of toxic ions, poor wear and corrosion resistance and patient discomfort due to the need of second operation. This study aims to use additive manufacturing (AM) process for fabrication of biodegradable orthopedic small locking bone plates to overcome complications related to metallic biomaterials. Design/methodology/approach Fused deposition modeling technique has been used for fabrication of bone plates. The effect of varying printing parameters such as infill density, layer height, wall thickness and print speed has been studied on tensile and flexural properties of bone plates using response surface methodology-based design of experiments. Findings The maximum tensile and flexural strengths are mainly dependent on printing parameters used during the fabrication of bone plates. Tensile and flexural strengths increase with increase in infill density and wall thickness and decrease with increase in layer height and wall thickness. Research limitations/implications The present work is focused on bone plates. In addition, different AM techniques can be used for fabrication of other biomedical implants. Originality/value Studies on application of AM techniques on distal ulna small locking bone plates have been hardly reported. This work involves optimization of printing parameters for development of distal ulna-based bone plate with high mechanical strength. Characterization of microscopic fractures has also been performed for understanding the fracture behavior of bone plates.

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A Gripper Force Sensing Device for Collaborative Manipulator Based on Force Sensitive Resistor

Wu,

2023

Mechanisms and Machine Science

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An Investigation on Mechanical Properties of PLA Produced by 3D Printing as an Implant Material

Cited by 4 publications

References 8 publications

Research on Additive Technique Parameter Optimization for Robotic Gripper Construction

Research on Additive Technique Parameter Optimization for Robotic Gripper Construction

Parametric experimental investigation of additive manufacturing-based distal ulna bone plate: a response surface methodology-based design approach

A Gripper Force Sensing Device for Collaborative Manipulator Based on Force Sensitive Resistor

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