Geometrical control of DED processes based on 3D scanning applied to the manufacture of complex parts

Garmendia, Iker; Flores, Jon; Madarieta, Mikel; Lamíkiz, Aitzol; Uriarte, L.; Soriano, Carlos

doi:10.1016/j.procir.2020.09.158

Cited by 10 publications

(3 citation statements)

References 11 publications

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“…Some authors have used a 3D scanner to monitor the part geometry [14]. Garmendia et al [15] have integrated a structured light-based scanner into a DED system in order to obtain a complete reconstruction of the manufactured geometry, making possible to monitor the product quality while it is being built, avoiding any suspension of the production process or offline measurement.…”

Section: Introductionmentioning

confidence: 99%

In process monitoring of geometrical characteristics in laser metal deposition: A comparative study

Latte

2023

Materials Research Proceedings

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Abstract. Although it is experiencing a wide diffusion, there are still several limits to the use of additive manufacturing (AM) for the fabrication of metal components. This includes low productivity, poor dimensional accuracy and uncertainty about the mechanical properties of the final parts. The main cause of these undesirable effects lies in the intrinsic complexity of the metal AM processes, such as Laser Metal Deposition (LMD). Accurate monitoring of the process and optimization of the process parameters are therefore of fundamental importance to ensure the overall quality of the product. Nowadays, several optical methods are under development for the monitoring of geometric characteristics and their correlation with specific process parameters, such as the standoff distance. This paper presents a comparative study between two optical in-process monitoring methods performed on AISI 316L multilayer samples produced by the LMD process. The first is a laser line section method based on a laser diode mounted on the deposition head, while the second method uses a high-resolution CMOS camera placed on the horizontal plane with a front view of the sample. In both cases, ad-hoc image processing algorithms were used to process the data, reconstruct the morphology of the component, and extract geometrical information. Results were then validated using an offline scanning system and micrographic analyses. Both proposed systems allowed the monitoring of the deposition quality using appropriate Key Performance Indicators (KPIs). The study showed a good capability of the prototype systems to detect deposition defects due to undesired variations of the process conditions and to monitor the standoff distance.

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Section: Introductionmentioning

confidence: 99%

In process monitoring of geometrical characteristics in laser metal deposition: A comparative study

Latte

2023

Materials Research Proceedings

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“…The author deals with practical implementation of an acceptance test for ATOS contact-less 3D scanner, designing and manufacturing its own test etalon for the determination of its nominal dimensions, by digitization. In [2], a 3D scanning methodology is used for measuring the part geometry in different stages of the laser metal deposition process. In this way, the manufacturing process is accomplished with the geometry control of the part.…”

Section: Introductionmentioning

confidence: 99%

Using 3D scanning in assessing the dimensional accuracy of mechanically machined parts

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Păunoiu

Afteni³

et al. 2022

IOP Conf. Ser.: Mater. Sci. Eng.

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In recent years, productivity and competitiveness have played a major role in manufacturing. To improve these aspects, many companies use computer-aided inspection (CAI) technologies. Inspection of parts, using 3D scanning technologies, is one the most modern and competitive ways to ensure the quality control of products. This paper presents a study on the assessment of the machined parts’ dimensional accuracy. An Atos Core device for 3D scanning of the part was used. The Atos device allows a non-contact inspection of the part’s entire surface, generating a very dense point cloud, which stores, with great accuracy, all the details of the inspected object. The machined part is compared with its numerical model, obtained by computer-aided design (CAD). The accuracy of the machining was proven to be very good, and the inspection’s result proves that the dimensions of the piece fall within the tolerance limits. A complete inspection of the piece, using 3D scanning, guarantees a fast and accurate quality control, thus reducing the production times.

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“…Bir başka çalışmada, Directed Energy Deposition (DED-Direkt enerji biriktirme) yöntemi ile Ti6Al4V alaşım kullanılarak silindir geometriye sahip bir deney parçası üretilmiştir. Yapılan çalışma sonucunda yüzey hassasiyetinin ± 2,5 mm tolerans değerinde olduğu görülmüştür [20]. Bu durumun sebebinin DED prosesinin tel ergitmeye dayalı çalışma yönteminden kaynaklandığı değerlendirilmektedir.…”

Section: Introductionunclassified

Manufacture and Dimensional Verification of a Gas Turbine Engine Compressor Blade Produced via Additive Manufacturing Method using Ti6Al4V

Saraçyakupoğlu

2021

Mühendis Ve Makina

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Bu çalışmada, bir gaz türbin motoruna ait kompresör palesinin, Ti6Al4V alaşımından Eklemeli Üretim (EÜ) yöntemiyle üretimi ve boyutsal doğrulama ölçümleri gerçekleştirilmiştir. Havacılık endüstrisinde yaygın kullanılan Direkt Metal Lazer Sinterleme (DMLS) yöntemi seçilmiştir. İmalattan sonra her bir palede 87 adet olmak üzere toplam 174 yüzey ölçümü gerçekleştirilmiştir. Ölçümlerde, katı modele oranla, 1 Nu'lı palede ortalama +0,0944/-0,0809 mm arasında, 2 Nu'lı palede ortalama +0,1093/-0,0978 mm değişim olduğu belirlenmiştir. Her iki paledeki geometrik değişimin birbiri ile tutarlı sonuçlar verdiği gözlemlenmiştir. Sonuç olarak, bir uçar-parçanın uçağa takılmasına yönelik uçuşa elverişlilik çalışmaları konusuna girmeden, bir gaz türbin motoru kompresör palelerinin Ti6Al4V alaşımından EÜ yöntemi ile üretilebileceği ortaya konulmuştur.

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Geometrical control of DED processes based on 3D scanning applied to the manufacture of complex parts

Cited by 10 publications

References 11 publications

In process monitoring of geometrical characteristics in laser metal deposition: A comparative study

In process monitoring of geometrical characteristics in laser metal deposition: A comparative study

Using 3D scanning in assessing the dimensional accuracy of mechanically machined parts

Manufacture and Dimensional Verification of a Gas Turbine Engine Compressor Blade Produced via Additive Manufacturing Method using Ti6Al4V

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