Pub Date : 2022-05-04DOI: 10.12688/materialsopenres.17451.1
J. Brook, Guillaume Wright, L. Bartolo, J. Warren, R. Wehrspohn
Materials science is increasingly at the forefront of both academic and societal progress. It is clear that these advances will continue to be shaped by cutting-edge research from across this field. As a discipline, materials science has rapidly grown in profile as one of the most vibrant and pioneering areas of study, resulting in substantial growth in the numbers of published articles and associated research materials. In order to expedite these discoveries and maximize their impact, ensuring the availability of open and reproducible materials science research is vitally important, as well as embracing the opportunities provided by emerging cross-disciplinary fields such as artificial intelligence. The open sharing of materials research and data can encourage further exploration, improving collaboration between researchers and, ultimately, accelerating the discovery, design, and deployment of new materials as well as new business models. Materials Open Research, a new publication venture from publishers F1000 and Taylor & Francis, has been conceived and launched with these principles in mind. All research shared on the platform will aim to provide impact, nurture innovation, and lead to a more sustainable future.
材料科学越来越处于学术和社会进步的前沿。很明显，这些进步将继续受到该领域尖端研究的影响。作为一门学科，材料科学已迅速成为最具活力和开拓性的研究领域之一，发表的文章和相关研究材料的数量大幅增长。为了加快这些发现并最大限度地发挥其影响，确保开放和可再生材料科学研究的可用性至关重要，同时也要抓住人工智能等新兴跨学科领域提供的机会。材料研究和数据的开放共享可以鼓励进一步的探索，改善研究人员之间的合作，并最终加速新材料和新商业模式的发现、设计和部署。Materials Open Research是F1000和Taylor&Francis出版社的一家新出版企业，其构思和推出都考虑到了这些原则。平台上共享的所有研究都将旨在提供影响力，培育创新，并引领更可持续的未来。
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Pub Date : 2022-05-04DOI: 10.12688/materialsopenres.17427.1
Vojislav Petrovic-Filipovic, R. Görgl, M. Suppan, J. Hesse, W. Waldhauser
Background: The quality of powder-blown Laser-Directed Energy Deposition (L-DED) is mainly governed by the energy density per unit of mass employed to melt the material. In most of the previous works, the focus in process monitoring and control was on the control of energy input, by controlling the properties of the melt pool. However, the powder mass input is as important to monitor as the energy input, in order to preserve the equilibrium of the process. Methods: In this paper, the authors present the first test results of the Pyzoflex® sensor for powder flow monitoring in L-DED using real powder feeding system in the robot-based laser-processing cell. The sensor was tested against the powder projected from the powder feeder under typical flow regimes and the real-time measurements were taken using a specifically designed software tool. Results: The graphical representation of the registered sensor signals are clearly correlated with the powder flow values set at the powder feeder, which demonstrates that the piezoelectric sensors can detect the powder flow with elevated precision in real time. Conclusions: The first laboratory tests of flexible printed piezoelectric sensors demonstrate that they are fast and precise in the powder flow measurement, but that more effort must be invested in the robustness of the measurement setup as well as in clearing and stabilization of the registered signal.
{"title":"Monitoring concept for powder flow monitoring in Laser-Directed Energy Deposition (L-DED) process based on flexible piezoelectric sensors","authors":"Vojislav Petrovic-Filipovic, R. Görgl, M. Suppan, J. Hesse, W. Waldhauser","doi":"10.12688/materialsopenres.17427.1","DOIUrl":"https://doi.org/10.12688/materialsopenres.17427.1","url":null,"abstract":"Background: The quality of powder-blown Laser-Directed Energy Deposition (L-DED) is mainly governed by the energy density per unit of mass employed to melt the material. In most of the previous works, the focus in process monitoring and control was on the control of energy input, by controlling the properties of the melt pool. However, the powder mass input is as important to monitor as the energy input, in order to preserve the equilibrium of the process. Methods: In this paper, the authors present the first test results of the Pyzoflex® sensor for powder flow monitoring in L-DED using real powder feeding system in the robot-based laser-processing cell. The sensor was tested against the powder projected from the powder feeder under typical flow regimes and the real-time measurements were taken using a specifically designed software tool. Results: The graphical representation of the registered sensor signals are clearly correlated with the powder flow values set at the powder feeder, which demonstrates that the piezoelectric sensors can detect the powder flow with elevated precision in real time. Conclusions: The first laboratory tests of flexible printed piezoelectric sensors demonstrate that they are fast and precise in the powder flow measurement, but that more effort must be invested in the robustness of the measurement setup as well as in clearing and stabilization of the registered signal.","PeriodicalId":29806,"journal":{"name":"Materials Open Research","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-05-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49402068","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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