Challenges, opportunities, and limitations in 3D printing

Tsioukas, Vassilios; Pikridas, Christos; Κάρολος, Ίων-Αναστάσιος

doi:10.1016/b978-0-323-66164-5.00012-x

Cited by 7 publications

(8 citation statements)

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“…Polyjet-fabricated snap-fitted lattices enhances the strength, energy absorption lattices Gay et al 153 Polyjet RGD240 acrylic photopolymer AM automotive bumpers, helmets, foams Enhanced mechanical performance of polyjet-fabricated flat parts under static and oscillating loads massive possibility of exploring lightweight and highstrength smart materials which could bear harsh environment zones such as extreme heat and cold storms, fire hazards, blasts, and high shocks. 170 Therefore, the availability of material restricts the application of certain print modes. It is noted that no ASTM standards for curing 3D printed specimens have been specified.…”

Section: Challenges Of Polyjet Additively Manufacturedmentioning

confidence: 99%

“…There is also a massive possibility of exploring lightweight and high-strength smart materials which could bear harsh environment zones such as extreme heat and cold storms, fire hazards, blasts, and high shocks. 170 Therefore, the availability of material restricts the application of certain print modes. It is noted that no ASTM standards for curing 3D printed specimens have been specified.…”

Section: Challenges Of Polyjet Additively Manufacturedmentioning

confidence: 99%

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A review on polyjet 3D printing of polymers and multi-material structures

Patpatiya

Chaudhary²,

Shastri

et al. 2022

Proceedings of the Institution of Mechanical Engineers, Part C:

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This article investigates the state-of-the-art of polyjet 3D printing of polymers and multi-material structures, with an emphasis on its applications in a range of industrial domains, including aerospace, architecture, toy fabrication, and medical field. While significant research and development in the field of additively manufactured (AM) multi-material and reinforced composite structures have been carried out during the previous decade, the need of the hour is to utilize a single manufacturing platform which would not only help to govern the composition, shape, and characteristics of multi-material 3D printed objects at the microscopic level but would also help industries to replace the conventional AM manufacturing methods and optimize their mechanical performance. Significant advancements in polyjet 3D printing of fiber-reinforced and functionally graded structures with numerous modifications in material composition are reviewed, which may revolutionize the industrial sector. Numerous polyjet printing parameters such as accuracy, printing speed, photo-curing effect, build orientation, layer thickness, print angles, and post-processing are comprehensively discussed, and best outputs to optimize the mechanical performance and enhance the accuracy of the polyjet 3D printing products are highlighted. FEA (finite element analysis) models and analytical relations for multi-material 3D printed structures are presented to predict and enhance the overall performance of polyjet fabrication. Along with the benefits of polyjet manufacturing, a few of the limitations and challenges of polyjet AM are addressed which would benefit the reader to conduct further research in this field and enhance fabrication quality significantly. Vivid comparisons with other multi-material AM fabrication techniques such as FDM, SLA, and SLS with their brief discussion, merits, and demerits are done.

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Section: Challenges Of Polyjet Additively Manufacturedmentioning

confidence: 99%

Section: Challenges Of Polyjet Additively Manufacturedmentioning

confidence: 99%

A review on polyjet 3D printing of polymers and multi-material structures

Patpatiya

Chaudhary²,

Shastri

et al. 2022

Proceedings of the Institution of Mechanical Engineers, Part C:

View full text Add to dashboard Cite

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“…3D printing plays a significant role in producing medical models with high accuracy and low wastage of materials (Aimar et al , 2019; Saleh et al , 2020). 3D printing provides a physical medical model of patient-specific anatomy to the surgeon that could be used for pre-visualizing a surgical intervention for pre-surgery planning with the cross-sectional image and customized modeling (Tsioukas et al , 2020). Numerous literature studies have been shown to emphasize the benefits and usefulness of 3D printing in the health-care sector.…”

Section: Literature Reviewmentioning

confidence: 99%

“…Javaid and Haleem (2018) briefly reviewed medical model criteria such as ease of use, materials, accuracy, cost and speed, and in addition, the development of medical process chains was briefly reviewed. More recently, Tsioukas et al (2020) examined the 3D printing pre and post-printing costs of 3D models, prosthetic parts and organ models. In another study, Alkhaibary et al (2020) and Liu et al (2020) reviewed suitable materials for cranioplasty surgical aspects and complications.…”

Section: Introductionmentioning

confidence: 99%

3D-printed medical models supply chain: barriers modeling and analysis

Verma

Kamble

Ganapathy

2022

RPJ

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Purpose This study aims to identify 3D-printed medical model (3DPMM) supply chain barriers that affect the supply chain of 3DPMM in the Indian context and investigate the interdependencies between the barriers to establish hierarchical relations between them to improve the supply chain. Design/methodology/approach The methodology used interpretive structural modeling (ISM) and a decision-making trial and evaluation laboratory (DEMATEL) to identify the hierarchical and contextual relations among the barriers to the 3DPMM supply chain. Findings A total of 15 3DPMM supply chain barriers were identified in this study. The analysis identified limited materials options, slow production speed, manual post-processing, high-skilled data analyst, design and customization expert and simulation accuracy as the significant driving barriers for the medical models supply chain for hospitals. In addition, the authors identified linkage and dependent barriers. The present study findings would help to improve the 3DPMM supply chain. Research limitations/implications There were no experts from other nations, so this study might have missed a few 3DPMM supply chain barriers that would have been significant from another nation’s perspective. Practical implications ISM would help practitioners minimize 3DPMM supply chain barriers, while DEMATEL allows practitioners to emphasize the causal effects of 3DPMM supply chain barriers. Originality/value This study minimizes the 3DPMM supply chain barriers for medical applications through a hybrid ISM and DEMATEL methodology that has not been investigated in the literature.

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“…However, regardless of the advantages that MEX has to offer, there are distinct drawbacks that are obstructing its forward vertical integration into the manufacturing industry (Dugbenoo et al , 2018; Fieger et al , 2020; Yap et al , 2020). To be specific, MEX-printed samples exhibit undesirable rough surfaces, anisotropic properties, dimensional inconsistency, low mechanical strengths, long build-up time and hindrances due to its small build volume (Arenas et al , 2012; Oropallo and Piegl, 2016; Tiwary et al , 2023; Tsioukas et al , 2020).…”

Section: Introductionmentioning

confidence: 99%

Investigations on friction stir spot welding to overcome bed size limits of material extrusion (MEX) 3D printers

Tiwary,

Padmakumar,

Malik

2023

RPJ

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Purpose Material extrusion (MEX) 3D printers suffer from an intrinsic limitation of small size of the prints due to its restricted bed dimension. On the other hand, friction stir spot welding (FSSW) is gaining wide interest from automobile, airplane, off-road equipment manufacturers and even consumer electronics. This paper aims to explore the possibility of FSSW on Acrylonitrile Butadiene Styrene/Polylactic acid 3D-printed components to overcome the bed size limitation of MEX 3D printers. Design/methodology/approach Four different tool geometries (tapered cylindrical pin with/without concavity, pinless with/without concavity) were used to produce the joints. Three critical process parameters related to FSSW (tool rotational speed, plunge depth and dwell time) and two related to 3D printing (material combination and infill percentages) were investigated and optimized using the Taguchi L27 design of experiments. The influence of each welding parameter on the shear strength was evaluated by analysis of variance. Findings Results revealed that the infill percentage, a 3D printing parameter, had the maximum effect on the joint strength. The joints displayed pull nugget, cross nugget and substrate failure morphologies. The outcome resulted in the joint efficiency reaching up to 100.3%, better than that obtained by other competitive processes for 3D-printed thermoplastics. The results, when applied to weld a UAV wing, showed good strength and integrity. Further, grafting the joints with nylon micro-particles was also investigated, resulting in a detrimental effect on the strength. Originality/value To the best of the authors’ knowledge, this is the first study to demonstrate that the welding of dissimilar 3D-printed thermoplastics with/without microparticles is possible by FSSW, whilst the process parameters have a considerable consequence on the bond strength.

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Challenges, opportunities, and limitations in 3D printing

Cited by 7 publications

References 0 publications

A review on polyjet 3D printing of polymers and multi-material structures

A review on polyjet 3D printing of polymers and multi-material structures

3D-printed medical models supply chain: barriers modeling and analysis

Investigations on friction stir spot welding to overcome bed size limits of material extrusion (MEX) 3D printers

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