2018
DOI: 10.1108/rpj-07-2017-0137
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Geometrical deviation identification and prediction method for additive manufacturing

Abstract: Purpose One major problem preventing further application and benefits from additive manufacturing (AM) nowadays is that AM build parts always end up with poor geometrical quality. To help improving geometrical quality for AM, this study aims to propose geometrical deviation identification and prediction method for AM, which could be used for identifying the factors, forms and values of geometrical deviation of AM parts. Design/methodology/approach This paper applied the skin model-based modal decomposition a… Show more

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Cited by 18 publications
(10 citation statements)
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“…The regression equation of cylindricity with FS, AS, and IF is given in Eq. (10). The percentage contribution (PC) of each input parameter and their interaction terms are also tabulated to understand the sensitivity of the input parameter on cylindricity.…”
Section: Resultsmentioning
confidence: 99%
See 1 more Smart Citation
“…The regression equation of cylindricity with FS, AS, and IF is given in Eq. (10). The percentage contribution (PC) of each input parameter and their interaction terms are also tabulated to understand the sensitivity of the input parameter on cylindricity.…”
Section: Resultsmentioning
confidence: 99%
“…From the aforementioned discussion, it is amply clear that the input parameters play an important role in determining the geometry of the final formed products [10]. Although there is a large body of literature on the subject, deliberations on the overall geometrical precision of the formed tube are rather scarce in the open literature.…”
Section: Introductionmentioning
confidence: 99%
“…One challenge is that the best set of parameters (even if validated) is no longer valid as soon as you change the laser you are working with (i.e., when using a different manufacturing machine), the powder batch (e.g., in terms of chemical analysis, particle size distribution, powder morphology) [109], or the geometry (e.g., sharp features, heavy sections or portion of inclined surfaces facing loose powder). A lot of work has been performed in order to investigate the optimal working conditions of L-PBF and guidelines for the selections of parameters [110][111][112][113][114][115][116].…”
Section: Laser Powder Bed Fusion Working Principles and Process-relatmentioning
confidence: 99%
“…Metals 2019, 9, x FOR PEER REVIEW 9 of 28 lot of work has been performed in order to investigate the optimal working conditions of L-PBF and guidelines for the selections of parameters [110][111][112][113][114][115][116].…”
Section: Laser Powder Bed Fusion Working Principles and Process-relatmentioning
confidence: 99%
“…[8][9][10] AM methods have evolved significantly in recent years; however, there are still challenges in obtaining high-quality resolution and surface finish for many applications. [11][12][13] For example, while fabricating a complex-shaped object using material extrusion methods, which is one of the most commonly used by AM methods, 14 an outline is first printed to more accurately define the contours, and then an infill pattern is used to deposit material within the contour lines. 15 This kind of space-filling scheme leads to gaps at the end of the deposited lines, and creates porosity in the specimens if the process is not well optimized, which affects the mechanical properties of the printed part.…”
Section: Introductionmentioning
confidence: 99%