Analysis of Factors Influencing the Mechanical Properties of Flat PolyJet Manufactured Parts

Blanco, David; Noriega, Á.; Pelayo, F.

doi:10.1016/j.proeng.2015.12.481

Cited by 57 publications

(32 citation statements)

References 4 publications

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“…A variety of additive manufacturing techniques exist today. Amongst these techniques, Polyjet [4], [5], [6], [7] stereolithography [8], [9], [10], selective laser sintering [11], [12], [13], [14] and Fused deposition modeling [15], [16] are the most frequently cited. Recently, a new technology of additive manufacturing has been integrated in the Freeformer-Arburg machine [17].…”

Section: Introductionmentioning

confidence: 99%

Polymer additive manufacturing of ABS structure: Influence of printing direction on mechanical properties

Dana

Barbe

Delbreilh

et al. 2019

Journal of Manufacturing Processes

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The present study relates to Polymers Additive Manufacturing (PAM) traditionally used for rapid prototyping operations. The use of PAM components as functional parts is still marginal compared to injection molded components. This is due to the uncertainty on their mechanical properties and to the present knowledge on PAM products. A new additive manufacturing technology has been integrated in the Freeformer-Arburg machine. It was inspired by injection molding technology and creates plastic parts using layers built up from tiny droplets of polymer. In this work, the mechanical characterization of thermoplastic polymer parts obtained by Arburg Plastic Freeforming (APF) is studied. Additionally the mechanical properties of polymer specimens obtained by injection molding as a conventional process are studied in order to evaluate the influence of the manufacturing process on the parts mechanical behavior. The tensile mechanical properties are evaluated by varying some manufacturing parameters, such as the printing path. Microstructural analyses have been performed to better understand the relationship between the manufacturing process and the final mechanical properties.

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Section: Introductionmentioning

confidence: 99%

Polymer additive manufacturing of ABS structure: Influence of printing direction on mechanical properties

Dana

Barbe

Delbreilh

et al. 2019

Journal of Manufacturing Processes

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“…In additive manufacturing, the layer-by-layer deposition considerably affects the material mechanical properties [9][10][11][12]. This is crucial in the manufacture of consumer products, particularly those subjected to external loads, where high material strength is required.…”

Section: Introductionmentioning

confidence: 99%

Stress Relaxation and Creep of a Polymer-Aluminum Composite Produced through Selective Laser Sintering

Bochnia

Błasiak

2020

Polymers

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This article discusses the rheological properties (stress relaxation and creep) of polymer-aluminum composite specimens fabricated through the selective laser sintering (SLS) from a commercially available powder called Alumide. The rheological data predicted using the Maxwell–Wiechert and the Kelvin–Voigt models for stress relaxation and creep, respectively, were in agreement with the experimental results. The elastic moduli and dynamic viscosities were determined with high accuracy for both models. The findings of this study can be useful to designers and users of SLS prints made from the material tested.

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“…However, these reported works were not capable of physically and directly presenting the stress field and its evolution inside media, which is a key factor for solving relevant rock mechanic problems. The advanced commercially available 3D printer Objet Connex series uses PolyJet 3D printing technology and possesses the unique capability of printing the highest number of different materials reported thus far 14 – 16 . VeroClear is one of the printable materials that can be used in Objet 3D printers.…”

Section: Introductionmentioning

confidence: 99%

“…Printing models that are identical to real rock samples in terms of mechanical properties remains a significant challenge. The raw material and manufacturing process may be assumed to exert a large influence on the mechanical response of objects constructed by 3D printing, and a certain degree of anisotropy will be introduced in the mechanical properties of printed models due to their stacked-layer nature 14 , 16 . Most published results indicate that the mechanical properties of PolyJet manufactured parts are dependent on ultraviolet light (UV) exposure time and building orientation 14 , 21 .…”

Section: Introductionmentioning

confidence: 99%

The mechanical and photoelastic properties of 3D printable stress-visualized materials

Xie

et al. 2017

Sci Rep

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Three-dimensional (3D) printing technology integrating frozen stress techniques has created a novel way to directly represent and characterize 3D interior discontinuities and the full-field stress induced by mining- or construction-related disturbances of deeply buried rock masses. However, concerns have been raised about the similitude between the mechanical behaviours of the printed model and its prototype rock mass. Ensuring the mechanical properties of the printable materials are as close as possible to those of real rock mass is of critical significance. In this work, a transparent, light, photosensitive polymer material was investigated for applications in frozen stress tests. The chemical composition of the material was determined by integrating the results of infrared spectroscopy (IR spectroscopy), X-ray diffraction (XRD), pyrolysis, gas chromatography and mass spectrometry (PY-GC/MS). Measures to improve the mechanical properties of the printable material, including printing orientation, post-processing, and temperature control, were evaluated by comparing the treated material with its prototype rock. The optical stress sensitivity of the material, including stress-visualized properties and stress-frozen performance, was also tested. This study offers an understanding of how printable materials should be modified to better simulate real rock masses, in terms of not only their geological geometry but also their mechanical performance.

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Analysis of Factors Influencing the Mechanical Properties of Flat PolyJet Manufactured Parts

Cited by 57 publications

References 4 publications

Polymer additive manufacturing of ABS structure: Influence of printing direction on mechanical properties

Polymer additive manufacturing of ABS structure: Influence of printing direction on mechanical properties

Stress Relaxation and Creep of a Polymer-Aluminum Composite Produced through Selective Laser Sintering

The mechanical and photoelastic properties of 3D printable stress-visualized materials

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