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检索条件"任意字段=AHFE International Conference on Additive Manufacturing, Modeling Systems and 3D Prototyping"

共 278 条记录，以下是141-150 订阅

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Surface Insulation Performance of 3d Printed Functionally Graded Insulator Fabricated by Active-Mixing Fused deposition modeling (AM-FdM) 7

Surface Insulation Performance of 3D Printed Functionally Gr...

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7th IEEE international conference on High Voltage Engineering and Application, ICHVE 2020

作者： Li, Wen-dong Zhao, Jia-Wei Chen, Yun Wei, Yan-Hui Jiang, Zhi-Hui Wang, Chao Lan, Hong-Bo deng, Jun-Bo Zhang, Guan-Jun State Key Laboratory of Electrical Insulation and Power Equipment Xi'an Jiaotong University Xi'an Shaanxi710049 China Qingdao 5D Intelligent Additive Manufacturing Technology Co. Ltd. Qingdao Shandong266520 China China Electric Power Research Institute Beijing100192 China Qingdao University of Science and Technology Qingdao Shandong266042 China

ISBN: (纸本)9781728155111

In this paper, the surface insulation performance of 3d-printed functionally graded material (FGM) insulators are investigated. These FGM insulators were fabricated through a self-developed 3d printing technique, which is called as Active-Mixing Fused deposition modeling (AM-FdM). Based on a prototypical AM-FdM platform, truncated cone insulators with heterogeneous relative permittivity were fabricated. Then, the surface flashover voltage of 3d-printed d-FGM insulators were tested under 50Hz AC voltage in both air and SF6 atmosphere. Preliminary results indicates a large increase (maximum 41%) in surface flashover voltage, which is especially significant when high pressure SF6 atmosphere (> \mathbf{0.3\ MPa}) is utilized. This research provides a novel and universal approach (i.e. AM-FdM 3d printing) for the fabrication of d-FGM objects, and verifies the feasibility of d-FGM in the improvement of surface insulation performance. © 2020 IEEE.

关键词： Fabrication

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The Competitive Advantage of additive manufacturing in the Naval Sector

The Competitive Advantage of Additive Manufacturing in the N...

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Multidisciplinary international conference of Research Applied to defense and Security, MICRAdS 2020

作者： Guarda, Teresa Augusto, Maria Fernanda Universidad de las Fuerzas Armadas Salinas Ecuador CIST—Centro de Investigacion en Sistemas y Telecomunicaciones Universidad Estatal Peninsula de Santa Elena La Libertad Ecuador Universidad Estatal Peninsula de Santa Elena La Libertad Ecuador Algoritmi Centre Minho University Guimarães Portugal BiTrum Research Group León Spain

ISBN: (纸本)9789811548741

3d technology is currently used in many areas;these technologies provide simulators, modeling, and personalization tools for printing in a totally innovative way. For years, financial restrictions imposed on the public sector have created difficulties in carrying out Navy missions, which, due to their high value and specificity, already have, by their nature, added difficulties. Thus, the introduction of additive manufacturing in supply chains can overcome some complications inherent in the process of maintaining existing means. additive manufacturing has the possibility to revolutionize supply chains;these technologies are possible disruptors in the area of maintenance and logistics and change the organization’s response capacity. In this sense, the Navy can exploit this technology in order to obtain its own benefits and improve its organization. © 2020, The Editor(s) (if applicable) and The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd.

关键词： Supply chains

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A comprehensive prediction model of bead geometry in wire and arc additive manufacturing 2

A comprehensive prediction model of bead geometry in wire an...

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2020 2nd international conference on Computer modeling, Simulation and Algorithm, CMSA 2020

作者： Wang, Changxing Bai, Hao Ren, Chuanqi Fang, Xuewei Lu, Bingheng State Key Laboratory for Manufacturing Systems Engineering Xi'an Jiao tongUniversity ChinaNo. 99 Yan Cheung Road Xi'an710054 China National Innovation Institute of Additive Manufacturing Xi'an Shaanxi710030 China

To explore the effect of process parameters on the bead geometry in cold metal transfer wire arc additive manufacturing(CMT-WAAW), the response surface optimization method was adopted in this paper. According to previous experiments, some process parameters were selected as independent variables. They are wire feed speed(WFS), traveling speed(TS) and substrate temperature(ST). Some geometric parameters of the welding bead were selected as dependent variables. They are the track width (w), layer height (h), penetration (p), accumulated area (A2), penetration area (A1), aspect ratio (B) and dilution ratio (d). In the given parameter interval, the prediction model behaves good. The relative error of bead size between actual value and predicted value are all within 5%. And five sets of verification experiment were carried out to prove that the accuracy of the developed model. © 2020 Institute of Physics Publishing. All rights reserved.

关键词： 3d printers

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additive manufacturing and 3d Printer Technology in Aerospace Industry 9

Additive Manufacturing and 3D Printer Technology in Aerospac...

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9th international conference on Recent Advances in Space Technologies (RAST)

作者： Kalender, Murathan Kilic, Sefa Fines Ersoy, Sezgin Bozkurt, Yahya Salman, Serdar Fac Technol Dept Met & Mat Engn Istanbul Turkey Fac Technol Dept Mechatron Engn Istanbul Turkey Natl Def Univ Istanbul Turkey

ISBN: (纸本)9781538694480

The additive manufacturing and 3-dimensional manufacturing technology offer unparalleled flexibility in terms of part geometry, material composition and manufacturing time. There are many difficulties in manufacturing parts in the aerospace field. Thin-walled aircraft engine components and structures with complex geometry, the difficulties encountered in the processing of materials, are the other main factors that compel the aviation industry to adopt the use of additive manufacturing technology. It is progressing in the direction of radically changing the aerospace sector in the production of extremely complex and lightweight parts with material wastes that are almost none. The aerospace engine industry requires stronger, lighter and more durable components. Today's additive manufacturing technology provides new possibilities to meet these situations. In addition, the aviation industry has combined the additive manufacturing process from concept design to end-use parts and repairs. Areas of application include rapid prototyping of components in the design phase using plastic and metal, followed by repair of damaged parts instead of direct production, scrapping or replacement of mold, tool and complex shape metal parts for mass production. Laser Metal Spool (LMd) Technology is the best method to repair aviation components. In this study, research and development activities carried out in the field of additive manufacturing in the aerospace industry have been examined and a literature review has conducted. In the experimental study, a scaled 3d prototype of an exemplary rocket equipment was produced using 3d printer technology. The pressure parameters of the study have been examined.

关键词： 3d Printer 3d modeling 3d Prototype Layered Fabrication Printing Technologies

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Magnetic particle composite materials for magnetic sensor made by fused deposition method 13

Magnetic particle composite materials for magnetic sensor ma...

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13th international conference on Sensing Technology (ICST)

作者： Ikeda, Shinji Yamada, Sotoshi Komatsu Univ Dept Prod Syst Engn & Sci Komatsu Japan

ISBN: (纸本)9781728148076

additive manufacturing(AM) technology has used widely for prototyping. The fused deposition modeling method using resin material is one of AM technology and popular recently. However, magnetic material isn't sophisticated for popular AM technology. In this paper, magnetic filaments what are composed of magnetic particles and ABS resin were made for fused deposition modeling method, and permeability was measured by figure 8 coil method and discussed by homogeneously distributed models. Measured relative permeability of these filaments is up to 1.7.

关键词： component fused deposition modeling 3d printer additive manufacturing magnetic particle composite material bonded magnetic material magnetic filament

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additive technologies for prototyping. Control of geometrical characteristics of abs plastic details for determining the original print sizes 12

Additive technologies for prototyping. Control of geometrica...

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12th international Scientific and Technical conference on Applied Mechanics and systems dynamics

作者： Tignibidin, A. V. Takayuk, S. V. Omsk State Tech Univ 11 Mira Ave Omsk 644050 Russia

Plastics of various types, such as ABS, PLA, etc. are used to create prototypes of parts by the method of layer-by-layer deposition (FdM). The low cost of these plastics determines the relevance of using this type of prototyping when developing models. One of the main problems with the use of 3d printing is plastic shrinkage when using heating platforms. The article presents the results of the study of the "Cube" detail after different printing modes to determine the most preferable mode when using universal ABS plastic. For the production of products with high requirements to the geometric characteristics, recommendations on making changes in dimensions at the stage of modeling parts are proposed, which allows us to eliminate the problem of material shrinkage.

关键词： 3d printers

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design and analysis of ISO standard bolt and nut in FdM 3d printer using PLA and ABS materials 1

Design and analysis of ISO standard bolt and nut in FDM 3D p...

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1st international conference on manufacturing, Material Science and Engineering

作者： Harshitha, V. Rao, Seeram Srinivasa KL Univ Dept Mech Guntur 522501 Andhra Pradesh India

A process of generating 3d object from a digital file consistently by arranging many thin layers of metals in succession is named as 3d printing. It has been gaining tremendous development in present years. By the use of additive manufacturing technology, a 3d digital design is reformed into virtual product by depositing metal consecutively. 3d printing provides resourceful feasibilities for complying various parameters based on engineering arena. In Fusion deposition modeling 3d printer, the primary materials needed are ABS and PLA. This experimental analysis is proposed by modelling a 3d ISO standard nut and bolt. A replica model of nut and bolt is created using 3d printer, by the use of Poly Lactic Acid (PLA) and Acrylonitrile Butadiene Styrene (ABS) materials. By using software titled CURA the slicing has been done precisely and directed to printing. Later this model is analyzed on ANSYS software for shear stress, equivalent stress and deformation. The PLA as well as ABS bolts are correlated with each other and evaluated. (C) 2019 Elsevier Ltd. All rights reserved.

关键词： ABS additive manufacturing PLA Rapid prototyping Slicer Bolts

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Technologies for additive manufacturing of Electrical Machines 20

Technologies for Additive Manufacturing of Electrical Machin...

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20th international conference of Young Specialists on Micro/Nanotechnologies and Electron devices (EdM)

作者： Tiismus, Hans Kallaste, Ants Vaimann, Toomas Rassolkin, Anton Belahcen, Anouar Tallinn Univ Technol Dept Elect Power Engn & Mechatron Tallinn Estonia Aalto Univ Energy & Power Espoo Finland

ISBN: (纸本)9781728117539

additive manufacturing (AM) technology is considered an essential component of the Industry 4.0 revolution, due to its capability for decentralized production of highly customizable complex objects. Its design and fabrication freedom also suggest for the production capacity of goods with embedded electromechanical components and even electrical machines with enhanced performance. Currently, due to the maturity of homo-material and limited multi-material capabilities of current AM systems, prototyping of 3d printed electrical machines has taken the path of manual assembly of printed components. For fully printed end-user products containing integrated electromechanical components to emerge, evolution of the multi-material printing systems is required. This paper discusses the technical demands of additively manufacturing electrical machines and current promising technologies on the horizon to bring us one step closer to mass produced fully 3d printed electrical machines.

关键词： Electric machines manufacturing processes Magnetic materials Three-dimensional printing

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A real-time iterative machine learning approach for temperature profile prediction in additive manufacturing processes 6

A real-time iterative machine learning approach for temperat...

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6th IEEE international conference on data Science and Advanced Analytics (dSAA)

作者： Paul, Arindam Mozaffar, Mojtaba Yang, Zijiang Liao, Wei-keng Choudhary, Alok Cao, Jian Agrawal, Ankit Dept Elect & Comp Engn Evanston IL 60208 USA Dept Mech Engn Evanston IL USA

ISBN: (纸本)9781728144931

additive manufacturing (AM) is a manufacturing paradigm that builds three-dimensional objects from a computer-aided design model by successively adding material layer by layer. AM has become very popular in the past decade due to its utility for fast prototyping such as 3d printing as well as manufacturing functional parts with complex geometries using processes such as laser metal deposition that would be difficult to create using traditional machining. As the process for creating an intricate part for an expensive metal such as Titanium is prohibitive with respect to cost, computational models are used to simulate the behavior of AM processes before the experimental run. However, as the simulations are computationally costly and time-consuming for predicting multiscale multi-physics phenomena in AM, physics-informed data-driven machine-learning systems for predicting the behavior of AM processes are immensely beneficial. Such models accelerate not only multiscale simulation tools but also empower real-time control systems using in-situ data. In this paper, we design and develop essential components of a scientific framework for developing a data-driven model-based real-time control system. Finite element methods are employed for solving time-dependent heat equations and developing the database. The proposed framework uses extremely randomized trees - an ensemble of bagged decision trees as the regression algorithm iteratively using temperatures of prior voxels and laser information as inputs to predict temperatures of subsequent voxels. The models achieve mean absolute percentage errors below 1% for predicting temperature profiles for AM processes. The code is made available for the research community at https://***/paularindam/ml-iter-additive.

关键词： ensemble learning additive manufacturing spatiotemporal modeling

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Multi-scale material modeling and print simulation for "first time right" additive manufacturing

Multi-scale material modeling and print simulation for "firs...

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SAMPE 2019 conference and Exhibition

作者： Lietaer, Olivier Bouillon, Sylvain Seignobos, Elodie Berger, Lucie e-Xstream Engineering Mont-Saint-Guibert Belgium Solvay Lyon France

ISBN: (纸本)9781934551301

additive manufacturing of polymers is transitioning from rapid prototyping to a true industrial production technique. While it brings valuable opportunities to the industry, such as drastically decreasing the time-to-market of new products or enabling lightweight, multi-material and multi-functional designs, it also comes with a series of challenges for the engineers. The reliability of the mechanical properties of the final part still has some uncertainty and is not fully supported by standard engineering tools. dimensional accuracy is not always met and cannot be predicted prior to printing. To cope with these issues, the engineering workflow which is daily applied for traditional manufacturing processes needs to be replicated and adapted to the additive manufacturing. Specifically, additive manufacturing of polymers and composites shows a very strong influence of the manufacturing on the material and global component behavior and its modeling constitutes a true multi-scale challenge. In this paper, insights on how the process simulation of FdM/FFF or SLS method can be solved via coupled thermo-mechanical models are presented. The numerical simulation follows the real printing workflow, takes into account the process setup and the material behavior, allows to predict the deformed shape of the part and residual stresses and offers warpage compensation techniques. An industrial application of process simulation is shown to demonstrate the validity of warpage predictions. Finally, a strongly coupled process-structure methodology is presented that predicts the as-printed mechanical behavior. This approach links the material anisotropy and the process-induced microstructure to the as-printed part performance. The part strength sensitivity to the build direction is also highlighted. This integrative workflow, which accounts for the full manufacturing history of the part, enables the design validation and the optimization of the performance of AM designs, as demonstrated

关键词： 3d printers

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