Cargando…

Dimensional and Geometrical Quality Enhancement in Additively Manufactured Parts: Systematic Framework and A Case Study

In order to compete with traditional manufacturing processes, Additive Manufacturing (AM) should be capable of producing medium to large batches at industrial-degree quality and competitive cost-per-unit. This paper proposes a systematic framework approach to the problem of fulfilling dimensional an...

Descripción completa

Detalles Bibliográficos
Autores principales: Beltrán, Natalia, Blanco, David, Álvarez, Braulio José, Noriega, Álvaro, Fernández, Pedro
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2019
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6926888/
https://www.ncbi.nlm.nih.gov/pubmed/31795091
http://dx.doi.org/10.3390/ma12233937
_version_ 1783482198010101760
author Beltrán, Natalia
Blanco, David
Álvarez, Braulio José
Noriega, Álvaro
Fernández, Pedro
author_facet Beltrán, Natalia
Blanco, David
Álvarez, Braulio José
Noriega, Álvaro
Fernández, Pedro
author_sort Beltrán, Natalia
collection PubMed
description In order to compete with traditional manufacturing processes, Additive Manufacturing (AM) should be capable of producing medium to large batches at industrial-degree quality and competitive cost-per-unit. This paper proposes a systematic framework approach to the problem of fulfilling dimensional and geometric requirements for medium batch sizes of AM parts, which has been structured as a three-step optimization methodology. Firstly, specific work characteristics are analyzed so that information is arranged according to an Operation Space (factors that could have an influence upon quality) and a Verification Space (formed by quality indicators and requirements). Standard process configuration leads to characterization of the standard achievable quality. Secondly, controllable factors are analyzed to determine their relative influence upon quality indicators and the optimal process configuration. Thirdly, optimization of part dimensional and/or geometric definition at the design level is performed in order to improve part quality and meet quality requirements. To evaluate the usefulness of the proposed framework under quasi-industrial condition, a case study is presented here which is focused on the dimensional and geometric optimization of surgical-steel tibia resection guides manufactured by Laser-Power Bed Fusion (L-PBF). The results show that the proposed approach allows for part quality improvement to a degree that matches the initial requirements.
format Online
Article
Text
id pubmed-6926888
institution National Center for Biotechnology Information
language English
publishDate 2019
publisher MDPI
record_format MEDLINE/PubMed
spelling pubmed-69268882019-12-23 Dimensional and Geometrical Quality Enhancement in Additively Manufactured Parts: Systematic Framework and A Case Study Beltrán, Natalia Blanco, David Álvarez, Braulio José Noriega, Álvaro Fernández, Pedro Materials (Basel) Article In order to compete with traditional manufacturing processes, Additive Manufacturing (AM) should be capable of producing medium to large batches at industrial-degree quality and competitive cost-per-unit. This paper proposes a systematic framework approach to the problem of fulfilling dimensional and geometric requirements for medium batch sizes of AM parts, which has been structured as a three-step optimization methodology. Firstly, specific work characteristics are analyzed so that information is arranged according to an Operation Space (factors that could have an influence upon quality) and a Verification Space (formed by quality indicators and requirements). Standard process configuration leads to characterization of the standard achievable quality. Secondly, controllable factors are analyzed to determine their relative influence upon quality indicators and the optimal process configuration. Thirdly, optimization of part dimensional and/or geometric definition at the design level is performed in order to improve part quality and meet quality requirements. To evaluate the usefulness of the proposed framework under quasi-industrial condition, a case study is presented here which is focused on the dimensional and geometric optimization of surgical-steel tibia resection guides manufactured by Laser-Power Bed Fusion (L-PBF). The results show that the proposed approach allows for part quality improvement to a degree that matches the initial requirements. MDPI 2019-11-28 /pmc/articles/PMC6926888/ /pubmed/31795091 http://dx.doi.org/10.3390/ma12233937 Text en © 2019 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Beltrán, Natalia
Blanco, David
Álvarez, Braulio José
Noriega, Álvaro
Fernández, Pedro
Dimensional and Geometrical Quality Enhancement in Additively Manufactured Parts: Systematic Framework and A Case Study
title Dimensional and Geometrical Quality Enhancement in Additively Manufactured Parts: Systematic Framework and A Case Study
title_full Dimensional and Geometrical Quality Enhancement in Additively Manufactured Parts: Systematic Framework and A Case Study
title_fullStr Dimensional and Geometrical Quality Enhancement in Additively Manufactured Parts: Systematic Framework and A Case Study
title_full_unstemmed Dimensional and Geometrical Quality Enhancement in Additively Manufactured Parts: Systematic Framework and A Case Study
title_short Dimensional and Geometrical Quality Enhancement in Additively Manufactured Parts: Systematic Framework and A Case Study
title_sort dimensional and geometrical quality enhancement in additively manufactured parts: systematic framework and a case study
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6926888/
https://www.ncbi.nlm.nih.gov/pubmed/31795091
http://dx.doi.org/10.3390/ma12233937
work_keys_str_mv AT beltrannatalia dimensionalandgeometricalqualityenhancementinadditivelymanufacturedpartssystematicframeworkandacasestudy
AT blancodavid dimensionalandgeometricalqualityenhancementinadditivelymanufacturedpartssystematicframeworkandacasestudy
AT alvarezbrauliojose dimensionalandgeometricalqualityenhancementinadditivelymanufacturedpartssystematicframeworkandacasestudy
AT noriegaalvaro dimensionalandgeometricalqualityenhancementinadditivelymanufacturedpartssystematicframeworkandacasestudy
AT fernandezpedro dimensionalandgeometricalqualityenhancementinadditivelymanufacturedpartssystematicframeworkandacasestudy