Comparison of Measurements Realized on Computed Tomograph and Optical Scanners for Elements Manufactured by Wire Arc Additive Manufacturing

Wieczorowski, Michał; Yago, I. P.; Pereira, Alejandro; Gapiński, Bartosz; Budzik, G.; Diering, Magdalena

doi:10.1007/978-3-031-03925-6_12

Cited by 8 publications

(7 citation statements)

References 43 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In additive manufacturing, surface topography is considered an important feature of functional character [ 45 , 46 ]. The possibilities of mapping the surface by means of various techniques are analyzed, in addition to those originating from the geometry measurements in the macro scale [ 47 ]. Nevertheless, the micro-scale allows for the evaluation of the machining quantitatively by using parameters and functions [ 48 , 49 ].…”

Section: Resultsmentioning

confidence: 99%

Experimental Study on the Manufacturing of Steel Inclined Walls by Directed Energy Deposition Based on Dimensional and 3D Surface Roughness Measurements

et al. 2022

Self Cite

View full text Add to dashboard Cite

Robotic-directed energy deposition has attracted the attention of the research community and industry as a process capable of producing large metallic parts. The selection of the manufacturing conditions is a critical step in improving the process efficiency and quality of the produced parts. The present work aims at analyzing the geometry and surface topography of walls built using several conditions and inclination angles, without additional supports except for the substrate. The walls were made of AWS A5.18. ER70S-6 steel using the Wire Arc Additive Manufacturing process. The study used both dimensional and 3D topography measurements to analyze the results. As findings, the travel speed played an important role in the size of the cross-section due to the heat input to the welding zone. Heat accumulation was a critical factor in the size and accuracy of the beads. Moreover, intermediate cooling provided structures with more uniform dimensions, smaller width, and higher layer growth. The inclination of the pieces influenced the width and uniformity of the beads, generating minor imperfections on the downside of the pieces because of gravity.

show abstract

Section: Resultsmentioning

confidence: 99%

Experimental Study on the Manufacturing of Steel Inclined Walls by Directed Energy Deposition Based on Dimensional and 3D Surface Roughness Measurements

et al. 2022

Self Cite

View full text Add to dashboard Cite

show abstract

“…The GOM Atos Q apparatus was used due to its intended use for very complex measurement tasks and the guarantee of extremely precise measurements for small and medium-sized parts. The scanner uses the technology of blue light in a narrow band, which allows eff ective fi ltering of light noise from the environment [10,21,22]. Structured light in the form of stripes is projected onto the tested object from a centrally placed projector.…”

Section: Dimensional and Shape Verification Of Pump Body Modelsmentioning

confidence: 99%

“…This was confirmed on the basis of a visual assessment of surface finish quality, conventional measurements and advanced optical measurements using the GOM Atos 3D scanner, cooperating with the GOM ScanCobot measuring robot. In both cases, the best mapping accuracy within the model was obtained on the outer side surfaces -parallel to the Z axis of the incremental machine's working space [21,22,23]. Different results were obtained on the surfaces parallel to the build plate (in the XY plane).…”

Section: Introductionmentioning

confidence: 96%

Dimensional-Shape Verification of a Selected Part of Machines Manufactured by Additive Techniques

Bernaczek¹,

Budzik²,

Dziubek³

et al. 2023

Adv. Sci. Technol. Res. J.

View full text Add to dashboard Cite

The publication covers the complex process of analyzing the accuracy of mapping models produced in AM (Additive Manufacturing) processes with a thermoplastic material -FFF (Fused Filament Fabrication) and polymerization of light-curing resin -PolyJet. The research was conducted with the use of an advanced optical measuring system -the GOM Atos 3D scanner. The part selected for the research in question was the water pump body as a representative example of an element with adequate dimensional and shape conditions (high degree of folding and geometric diff erentiation) allowing, based on the results of coordinate measurements determined in the research process, to defi ne the potential area of application of AM models made of thermoplastic material and resin hardened with UV light. The performed tests showed the accuracy of individual AM methods at a level within the range declared by machine manufacturers. However, the PolyJet body is characterized by a much higher accuracy of the shape mapping compared to the FFF body. The dimensional accuracy is also higher for the resin model in relation to the thermoplastic model, which results primarily from the thickness of the elementary layer of the model material applied by the printing module defi ned for individual incremental processes -16 μm for RGD 720 and 0.2 mm for ABS. Detailed elaboration and analysis of the research results are presented in this publication.

show abstract

“…The second group of measurement methods are non-contact methods, in which there is no contact between the measuring instrument and the object being measured [26,27]. This allows for accurate measurements of objects with complex shapes, of both small and large size [28][29][30][31], as well as those made of flexible materials such as sponges, foams, or plastics [32,33] or made by additive technologies [34][35][36]; the same applies to metal elements manufactured by wire arc additive manufacturing [37]. For such large components as the welded frame under study, the use of a photogrammetric method is both reasonable and preferable.…”

Section: Introductionmentioning

confidence: 99%

Experimental Verification of Geometric Changes Caused by the Release of Residual Stresses for Large-Scale Welded Frames

Wieczorowski,

Jakubowicz,

Marciniak-Podsadna

et al. 2024

Materials

View full text Add to dashboard Cite

This paper presents geometric analyses of welded frames after free relaxing and vibratory stress relief (VSR). The tested frames were components of a prototype packaging machine. Two types of relaxation were carried out to remove stresses introduced as a result of the welding process. One of the frames was subjected to free relaxation, while the other one was subjected to accelerated vibration relaxation. Detection of the frame geometry changes was performed using a photogrammetric system. In addition, an evaluation of the geometry change was conducted for fifteen variants of a steel frame support. A comparative analysis of the geometric deviations of the frames after free and vibratory stress relief confirmed the assumption that the frame post vibration stress relief better reproduces the nominal dimensions. Nevertheless, it should be emphasized that after vibratory stress relief, the frame is not subject to further deformation, which is a desirable effect. In the case of free relaxing, the frame undergoes dimensional changes in a random manner. In summary, carrying out accelerated vibratory stress relief allows for control of spontaneous dimensional changes in the designed frame of a packaging machine resulting from spontaneous relaxation of stresses arising from the welding process. The shortening of the relaxation process of the welded frame is also an unquestionable advantage.

show abstract

Comparison of Measurements Realized on Computed Tomograph and Optical Scanners for Elements Manufactured by Wire Arc Additive Manufacturing

Cited by 8 publications

References 43 publications

Experimental Study on the Manufacturing of Steel Inclined Walls by Directed Energy Deposition Based on Dimensional and 3D Surface Roughness Measurements

Experimental Study on the Manufacturing of Steel Inclined Walls by Directed Energy Deposition Based on Dimensional and 3D Surface Roughness Measurements

Dimensional-Shape Verification of a Selected Part of Machines Manufactured by Additive Techniques

Experimental Verification of Geometric Changes Caused by the Release of Residual Stresses for Large-Scale Welded Frames

Contact Info

Product

Resources

About