Status, comparison, and future of the representations of additive manufacturing data

Qin, Yuchu; Qi, Qunfen; Scott, Paul J.; Jiang, Xiangqian

doi:10.1016/j.cad.2019.02.004

Cited by 66 publications

(34 citation statements)

References 123 publications

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“…In general, geometry design for AM is carried out via either computer-aided design (CAD) modelling or reverse engineering. CAD modelling is performed in a CAD system based on the result of conceptual design and outputs a tessellated 3D model of the product, which is generally encoded in STL (standard tessellation language), OBJ (Wavefront object), 3MF (3D manufacturing format) or AMF (additive manufacturing file) format (Qin et al 2019b). Reverse engineering generates a tessellated 3D model of a 3D object from its 2D image or physical model.…”

Section: Design For Ammentioning

confidence: 99%

Automatic determination of part build orientation for laser powder bed fusion

Qin

Shi

et al. 2020

Virtual and Physical Prototyping

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In this paper, an automatic determination method of part build orientation for laser powder bed fusion is presented. This method includes two steps. First, an existing facet clustering-based approach is applied to automatically generate the alternative orientations of a laser powder bed fusion part. Second, support volume, volumetric error, surface roughness, build time and build cost are considered. Their values in each alternative orientation are estimated by certain estimation models. The weights of these factors are determined via pairwise comparison. The weighted sum model is used to calculate a summary value of the factors in each alternative orientation. According to the calculated summary values, an optimal orientation to build the part is generated. To demonstrate the method, a set of part orientation cases are tested, and effectiveness analysis and efficiency and characteristic comparisons are reported. The demonstration results suggest that the proposed method can work for both regular and freeform surface models, produce stable and reasonable results and provide desired efficiency.

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Section: Design For Ammentioning

confidence: 99%

Automatic determination of part build orientation for laser powder bed fusion

Qin

Shi

et al. 2020

Virtual and Physical Prototyping

Self Cite

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“…Optical 3D printing is used in various areas, such as dentistry [ 4 ], medicine [ 5 ], construction industry [ 6 ], etc. [ 7 ]. Increasing the popularity of optical 3D printing leads to the environmental problems, such as lack of bio-based materials with the same properties as petroleum-based materials [ 8 ] and recycling problems of the used products [ 9 ].…”

Section: Introductionmentioning

confidence: 99%

Influence of Vanillin Acrylate-Based Resin Composition on Resin Photocuring Kinetics and Antimicrobial Properties of the Resulting Polymers

et al. 2021

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The investigation of the influence of vanillin acrylate-based resin composition on photocuring kinetics and antimicrobial properties of the resulting polymers was performed in order to find efficient photocurable systems for optical 3D printing of bio-based polymers with tunable rigidity, as well as with antibacterial and antifungal activity. Two vanillin derivatives, vanillin diacrylate and vanillin dimethacrylate, were tested in photocurable systems using phenyl bis(2,4,6-trimethylbenzoyl)phosphine oxide as a photoinitiator. The influence of vanillin acrylate monomer, amount of photoinitiator, presence and amount of dithiol, and presence of solvent on photocuring kinetics was investigated by real-time photoreometry. Polymers of different rigidity were obtained by changing the photocurable resin composition. The photocuring kinetics of the selected vanillin acrylate-based resins was comparable with that of commercial petroleum-based acrylate resins for optical 3D printing. Polymers based on both vanillin acrylates showed a significant antibacterial activity against Escherichia coli and Staphylococcus aureus. Vanillin diacrylate-based polymer films also demonstrated an antifungal activity in direct contact with Aspergillus niger and Aspergillus terreus. Vanillin diacrylate-based dual curing systems were selected as the most promising for optical 3D printing of bio-based polymers with antibacterial and antifungal activity.

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“…In this field, the work of Lee et al [24] presents a general overview of standardization activities mainly related to data transfer and exchange developed by the main international organizations such as ISO, ASTM and IEEE committees. Quin et al [25] pointed out that repeatability and reproducibility of AM parts highly relay on an effective data representation. A critical review of information exchange standards for design and tolerancing in additive manufacturing has been also realized by Xiao et al [26].…”

Section: Introductionmentioning

confidence: 99%

Analysis of General and Specific Standardization Developments in Additive Manufacturing From a Materials and Technological Approach

et al. 2020

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Additive manufacturing processes and products are very present in the current productive landscape, and in fact these technologies have been one of the most intensively studied and improved during the last years; however, there is still no defined and homogeneous regulatory context for this field. In this work, a thorough review of the main general and specific regulatory developments in design, materials and processes standards for additive manufacturing has been carried out, with special attention to the standards for mechanical characterization of polymer-based products. In many cases standards developed for other productive contexts are identified as recommended references, and some contradictory trends can be identified when different documents and previous experiences are consulted. Thus, as it is logical considering that all these technologies are involved in an intensive and continuous evolution process, there is a certain lack of clarity regarding the standards to be considered. This work aims to contribute to clarify the current standardization context in additive manufacturing and provide some guidelines for the identification of appropriate standards. The paper also emphasizes that the key for next regulatory developments in mechanical testing is to develop standards that consider particular AM processes along with materials. Moreover, a great gap between available standard about additive technologies based on metallic materials and polymer materials during the last years has been detected. Finally, the provided overview is considered of interest as support for research and practice in additive manufacturing, and both in intensive productive scenarios and for particular users and makers.

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Status, comparison, and future of the representations of additive manufacturing data

Cited by 66 publications

References 123 publications

Automatic determination of part build orientation for laser powder bed fusion

Automatic determination of part build orientation for laser powder bed fusion

Influence of Vanillin Acrylate-Based Resin Composition on Resin Photocuring Kinetics and Antimicrobial Properties of the Resulting Polymers

Analysis of General and Specific Standardization Developments in Additive Manufacturing From a Materials and Technological Approach

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