DOCSLIB.ORG

Innovation in Composite Additive Manufacturing

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text
Innovation in Composite Additive Manufacturing Master Thesis Innovation in composite additive manufacturing Euan Muir Division of Machine Design • Department of Design Sciences Faculty of Engineering LTH • Lund University • 2015 Innovation in composite additive manufacturing Euan Muir Division of Machine Design • Department of Design Sciences Faculty of Engineering LTH • Lund University • 2015 Division of Machine Design, Department of Design Sciences Faculty of Engineering LTH, Lund University P.O. Box 118 SE-221 00 Lund Sweden ISRN LUTMDN/TMKT 15/5525 SE Preface I want to thank a few people for their contribution to this report. Giorgos Nikoleris, my advisor whom always knew who to contact Katarina Elner-Haglund for lots of useful help bouncing ideas. Pernilla Karlsson, my friend that helped me understand the chemical engineering standpoints. All of the contacts in the industry that took the time to guide me and answer my questions. Lund, May 2015 Euan Muir i Abstract This master thesis contains an overview of existing additive manufacturing methods and considers possible new methods. The purpose being to develop a method for additive manufacturing that can create 3D objects with composite material and/or out of metal. Further this method should work on a low cost additive manufacturing machine. A development process is used in order to select an appropriate method. The method is then divided into parts that are individually analysed in order to produce a proof of concept model. Initially an overview of existing patents regarding additive manufacturing was conducted in order to see if the devised problem was addressed and how. A patent search regarding both additive manufacturing of composites and of metallic objects was performed. The next phase was conducting a market overview of existing low cost 3D printers and selecting one model that was appropriate for purchase. The purchased 3D printer was then assembled and tested to build up a general experience of properties and limitations of low cost printers. These properties regard both control parameters, mechanical properties (such as eigen frequencies, resolution) and print limitations (typical errors, materials etc.). Concept generation took place by brainstorming a wide range of possible ideas to address the project goal. Existing manufacturing methods and processes that inspired the concepts are described in the theory. The final concept was selected by a process of first concept screening followed by concept scoring and selection. After screening the bulk of four concepts remained. One mainly addressed the goal of manufacturing metallic parts and the others composites. Further literary study of material properties and manufacturing processes relevant to these methods was conducted for the scoring step. Also appropriate retailers of materials and parts and machines were contacted for relevant cost information. The selected concept uses photopolymers cured by UV radiation. In order to finalise the proof of concept a print head was constructed and several tests were conducted in order to observe possible fill rates and required radiation levels in order to achieve a required flow rate and curing times respectively. Finally suggestions for further development and studies is summarised. iii Keywords: Additive manufacturing, Composites, Rapid Prototyping iv Sammanfattning Studien har utforskat möjligheter för att utveckla en ny lågpris metod för additiv tillverkning som skall svara mot önskemål från dagens användare. Önskemålen har identifierats till att vara en metod som tillåter att med en enkel 3D skrivare kunna skriva ut detaljer med komposit eller metalliska materialegenskaper. Målet med studien är att ta fram en ”proof of concept” lösning för att visa att metoden går att utveckla och tillverka inom ramarna för kostnad och kundbehov. Ledande önskemålen och kraven som identifierades var behov av fler material, metalliska materialegenskaper och möjligheten till integrerad ledningsförmåga i designen. Dessa önskemålen togs fram från en samlad undersökning av användarforum, intervjuer från plastindustrin samt testning och användning av maskiner. Önskemålen kompletterades även med kriterier och önskemål som används för utvärdering av framtagna koncept. För djupare förståelse byggdes en 3D skrivare. En granskning av befintliga maskiner utfördes och en maskin valdes efter pris, öppen hårdvara, öppen mjukvara och mängden användare. Konstruktionen, installation och körning av maskinen gav erfarenhet av användarbehov möjligheter gällande styrning och reglering av processen. Maskinens mekaniska och elektroniska gränssnitt sattes som gränssnitt för konceptlösningen. En undersökning av existerande metoder för additiva tillverkning och relaterade tillverkningsmetoder utfördes. Existerande metoderna inkluderar Stereolithography (SLA), Selective Laser Sintering (SLS), Fused Deposition Modeling (FDM), Three dimensional printing (3DP), Ultrasonicwelding (UW), Metal injection molding (MIM), Microwavewelding (MW) och Injection Molding (IM) med extra granskning på extrudering. En granskning av ovan nämnda metoder används för att skapa och utvärdera nya möjligheter för tillverkningsmetoder som uppfyllde kraven från användare. Detta resulterade i generering av tolv koncept. Koncepten utvärderas först enl. de framtagna kraven. Först valdes de koncept ut som klarade alla fastlagda kraven där komplexitet, kostnad, olämplig metod för en novis användare och brist på kunskap och erfarenhet var de avgörande kriterierna. Fyra av koncept uppfyllde kravställningen. För att avgöra vilket koncept som skulle utvecklas jämfördes de med målen. Målen viktades för att de mest avgörande ska ha störst inflytande. v De fyra koncepten var 1. En matare med förblandad UV härdad vätska/fiber el. partikel 2. En värmd matare för förblandad polymer/fiberkomposit 3. Elektrisk motstånd matare av metalltråd 4. En matare för inbyggd kontinuerlig fiber eller tråd. Konceptet som bäst svarade på de viktade behoven var mataren för förblandad UV härdad vätska. En enkel konstruktion togs fram för testning av produkten som svarade till den monterade maskinens gränssnitt. Delar beställdes in för tillverkning och testning inkluderat: Gas atomatiserat metallpulver Fotopolymer UV dioder En matare konstruerades med en plastspruta, en stegmotor, en rem och en kuggremskiva. En hållare för testning konstruerades (med inspiration från en befintlig modell ”pastruder”) för att passa till projektets ändamål. Den fotopolymer som beställdes levererades aldrig. För testning användes överbliven fotopolymer från en äldre SLA maskin. Testning utfördes för att undersöka fiberns fyllnadsgrads och kvantitet av UV dioders inverkan på härdningstid. Utifrån testerna valdes lämpliga komponenter av UV dioder och tillhörande motstånd. Slutsatsen av undersökningen är att metoden fungerar som additiv tillverkningsprocess och uppfyller kraven på kostnader. Rapporten avslutas i ett flertal förslag för vidare tester och behov av utveckling av metoden. Däribland föreslås tester av komponenter för ökad ledningsförmåga samt en utveckling av mjukvara för datorstödd tillverknings (CAM) beredning av mer process specifika parametrar. vi Table of Contents Abbreviations and acronyms ........................................................................ 1 1 Introduction ................................................................................................. 3 2 Aims.............................................................................................................. 7 3 Theory .......................................................................................................... 9 3.1 Additive manufacturing ............................................................................................ 9 3.2 Metal injection moulding ........................................................................................ 11 3.3 Mixer and Extruder ................................................................................................ 12 3.4 Materials and composites ..................................................................................... 15 3.4.1 Composites ......................................................................................................................... 15 3.4.2 Metal fibres ...................................................................................................................... 16 3.4.3 Polymers .......................................................................................................................... 16 3.4.4 Composites in additive manufacturing ............................................................................. 17 3.4.5 Polymers tested with fibre reinforcement in previous studies ........................................... 18 3.4.6 Carbon black (CB) ........................................................................................................... 19 3.5 Sintering ................................................................................................................ 19 3.6 Conductive properties in design ............................................................................ 19 3.7 Standing waves ..................................................................................................... 21 3.8 Ultrasonic transfer of energy ................................................................................. 21 3.9 Microwave transfer of energy ................................................................................ 21 3.10 Rheological properties of plastics ......................................................................
Load more

Recommended publications
  • All-Printed Smart Structures: a Viable Option? John O’Donnella, Farzad Ahmadkhanloub, Hwan-Sik Yoon*A, Gregory Washingtonb Adept
    All-printed smart structures: a viable option? John O’Donnella, Farzad Ahmadkhanloub, Hwan-Sik Yoon*a, Gregory Washingtonb aDept. of Mechanical Engineering, The University of Alabama, Box 870276, Tuscaloosa, AL, USA 35487-0276; bDept. of Mechanical and Aerospace Engineering, University of California Irvine, Irvine, CA, USA 92697-3975 ABSTRACT The last two decades have seen evolution of smart materials and structures technologies from theoretical concepts to physical realization in many engineering fields. These include smart sensors and actuators, active damping and vibration control, biomimetics, and structural health monitoring. Recently, additive manufacturing technologies such as 3D printing and printed electronics have received attention as methods to produce 3D objects or electronic components for prototyping or distributed manufacturing purposes. In this paper, the viability of manufacturing all-printed smart structures, with embedded sensors and actuators, will be investigated. To this end, the current 3D printing and printed electronics technologies will be reviewed first. Then, the plausibility of combining these two different additive manufacturing technologies to create all-printed smart structures will be discussed. Potential applications for this type of all-printed smart structures include most of the traditional smart structures where sensors and actuators are embedded or bonded to the structures to measure structural response and cause desired static and dynamic changes in the structure. Keywords: printed smart structures, 3D printing, printed electronics, printed strain sensor 1. INTRODUCTION Decades of research and development have seen the progression of a variety of different additive manufacturing processes [1]. From basic Fused Deposition modeling to the more intricate Energy Beam methods, the ability to print a diverse selection of structures, both complex and simple, on demand with accuracy and precision has become a reality.
    [Show full text]
  • A Study on Ultrasonic Energy Assisted Metal Processing : Its Correeltion with Microstructure and Properties, and Its Application to Additive Manufacturing
    University of Louisville ThinkIR: The University of Louisville's Institutional Repository Electronic Theses and Dissertations 5-2019 A study on ultrasonic energy assisted metal processing : its correeltion with microstructure and properties, and its application to additive manufacturing. Anagh Deshpande University of Louisville Follow this and additional works at: https://ir.library.louisville.edu/etd Part of the Manufacturing Commons, Metallurgy Commons, and the Other Materials Science and Engineering Commons Recommended Citation Deshpande, Anagh, "A study on ultrasonic energy assisted metal processing : its correeltion with microstructure and properties, and its application to additive manufacturing." (2019). Electronic Theses and Dissertations. Paper 3239. https://doi.org/10.18297/etd/3239 This Doctoral Dissertation is brought to you for free and open access by ThinkIR: The nivU ersity of Louisville's Institutional Repository. It has been accepted for inclusion in Electronic Theses and Dissertations by an authorized administrator of ThinkIR: The nivU ersity of Louisville's Institutional Repository. This title appears here courtesy of the author, who has retained all other copyrights. For more information, please contact [email protected]. A STUDY ON ULTRASONIC ENERGY ASSISTED METAL PROCESSING: ITS CORRELTION WITH MICROSTRUCTURE AND PROPERTIES, AND ITS APPLICATION TO ADDITIVE MANUFACTURING By Anagh Deshpande A Dissertation Submitted to the Faculty of the J.B. Speed School of Engineering of the University of Louisville in Fulfillment
    [Show full text]
  • The Current Landscape for Additive Manufacturing Research
    THE CURRENT LANDSCAPE FOR ADDITIVE MANUFACTURING RESEARCH A review to map the UK’s research activities in AM internationally and nationally 2016 ICL AMN report Dr. Jing Li Dr. Connor Myant Dr. Billy Wu Imperial College Additive Manufacturing Network Contents Executive Summary .............................................................................................................. 1 1. Introduction .................................................................................................................... 4 2. What is additive manufacturing? .................................................................................... 5 2.1. Advantages of additive manufacturing ......................................................................... 5 2.2. Types of additive manufacturing technology and challenges ........................................ 6 2.3. The manufacturing production chain and challenges ................................................... 9 2.4. Conclusions ................................................................................................................12 3. Mapping the international additive manufacturing research landscape ......................... 13 3.1. Global market trend ....................................................................................................13 3.1.1. Growth in market value ........................................................................................13 3.1.2 Additive manufacturing growth in industrial markets.............................................14
    [Show full text]
  • Metal Parts Using Additive Technologies
    3/3/2017 Fundamentals of Additive Manufacturing for Aerospace Frank Medina, Ph.D. Technology Leader, Additive Manufacturing Director, Additive Manufacturing Consortium [email protected] 915-373-5047 Intent of This Talk Introduce the general methods for forming metal parts using additive manufacturing Give multiple examples of each type of method Compare and contrast the methods given Disclaimer: – This talk serves as an introduction to the various additive manufacturing technologies which work with metals. There are so many methods available we will not have time to discuss them all. – Once you determine the right approach for you, please investigate different machine manufacturers and service providers to determine the optimal solution for your needs. – I have tried to be objective in the presentation. Where I can I have given the affiliations for the materials used. If I’ve missed any I apologize in advance. About me and EWI I am a Technology Leader at EWI specializing in additive manufacturing (AM) with a focus on Metals AM. I have over 17 years of AM experience, collaborating with research scientists, engineers, and medical doctors to develop new equipment and devices. Non-profit applied manufacturing R&D company ─ Develops, commercializes, and implements leading-edge manufacturing technologies for innovative businesses Thought-leader in many cross-cutting technologies ─ >160,000 sq-ft in 3 facilities with full-scale test labs (expanding) ─ >$40 million in state of the art capital equipment (expanding) ─ >170 engineers, technicians, industry experts (expanding) 1 3/3/2017 Structural Gap between Research and Application Technology Maturity Scale Source: NIST AMNPO presentation Oct. 2012 EWI Applied R&D Bridges the Gap Between Research and Application EWI Applied R&D: Manufacturing Technology Innovation, Maturation, Commercialization, Insertion Technology Maturity Scale Source: NIST AMNPO presentation Oct.
    [Show full text]
  • Additive Manufacturing: Analysis of the Economic Context and Evaluation of the Indoor Air Quality, with a Total Quality Management Approach
    DIPARTIMENTO DI ECONOMIA, SOCIETÀ, POLITICA CORSO DI DOTTORATO DI RICERCA IN Economia, Società, Diritto CURRICULUM Economia e Management CICLO XXXI Additive Manufacturing: analysis of the economic context and evaluation of the indoor air quality, with a Total Quality Management approach SETTORE SCIENTIFICO DISCIPLINARE: SECS-P/13-SCIENZE MERCEOLOGICHE RELATORE DOTTORANDA Chiar.ma Prof.ssa Federica Murmura Dott.ssa Laura Bravi CO TUTOR Ing. Francesco Balducci Anno Accademico 2017/2018 Summary INTRODUCTION CHAPTER 1: ADDITIVE MANUFACTURING: IS IT THE FUTURE? ABSTRACT .......................................................................................................................... 10 1.1 Additive and Subtractive Manufacturing ...................................................................... 10 1.2 The road towards Additive Manufacturing ................................................................... 13 1.2.1 Prehistory of AM .................................................................................................... 14 1.2.2 First attempts to modern AM ................................................................................. 16 1.2.3 The RepRap project ................................................................................................ 19 1.2.4 The Fab@Home project ......................................................................................... 23 1.3 AM today: 3D printing in the digitalization of manufacturing ..................................... 24 1.3.1 The main Additive Manufacturing
    [Show full text]
  • 3D Printing As an Alternative Manufacturing Method for the Micro­Gas Turbine Heat Exchanger
    3D Printing as an Alternative Manufacturing Method for the Micro­gas Turbine Heat Exchanger Wolfgang Seiya and Sherry Zhang July 2015 Department of Energy Technology Royal Institute of Technology Stockholm, Sweden Pratt School of Engineering, Smarthome Program Duke University Durham, North Carolina, USA 1 Acknowledgements We would like to thank InnoEnergy, Compower, and the ‘‘STandUP for Energy’’ project for providing resourceful background information for this study. We owe our deepest gratitude to our advisor, Anders Malmquist for his continuous support for this study throughout the summer. His guidance, motivation, and expertise were invaluable assets in all areas of the study. Our sincere thanks goes to Joachim Claesson at KTH for his time and knowledge on the subject of heat exchangers. We take this opportunity to thank all the company correspondents that took their time and interest to help us with the vast information needed for this study. Lastly, we are immensely grateful to Duke Smart Home Program and its director Jim Gaston for providing us with the opportunity and necessary funds to live in Sweden while conducting this study. 2 I. Table of Contents List of Figures …………………………………………………………………………….… 6 ​ List of Tables ……………………………………………………………………………….. 7 ​ Abbreviations and Equation Nomenclature ………………………………………………… 8 ​ Abstract …………………………………………………………………………………...… 9 ​ Introduction …………………………………………………………………………………. 9 ​ Methodology ……………………………………………………………………………….. 10 ​ Materials ……………………………………………………………………………….. 10 ​ Manufacturing ………………………………………………………………………….
    [Show full text]
  • History of Additive Manufacturing
    Wohlers Report 2014 History of Additive Manufacturing History of additive This 34‐page document is a part of Wohlers Report 2014 and was created for its readers. The document chronicles the history of additive manufacturing manufacturing (AM) and 3D printing, beginning with the initial by Terry Wohlers and Tim Gornet commercialization of stereolithography in 1987 to May 2013. Developments from May 2013 through April 2014 are available in the complete 276‐page version of the report. An analysis of AM, from the earliest inventions in the 1960s to the 1990s, is included in the final several pages of this document. Additive manufacturing first emerged in 1987 with stereolithography (SL) from 3D Systems, a process that solidifies thin layers of ultraviolet (UV) light‐sensitive liquid polymer using a laser. The SLA‐1, the first commercially available AM system in the world, was the precursor of the once popular SLA 250 machine. (SLA stands for StereoLithography Apparatus.) The Viper SLA product from 3D Systems replaced the SLA 250 many years ago. In 1988, 3D Systems and Ciba‐Geigy partnered in SL materials development and commercialized the first‐generation acrylate resins. DuPont’s Somos stereolithography machine and materials were developed the same year. Loctite also entered the SL resin business in the late 1980s, but remained in the industry only until 1993. After 3D Systems commercialized SL in the U.S., Japan’s NTT Data CMET and Sony/D‐MEC commercialized versions of stereolithography in 1988 and 1989, respectively. NTT Data CMET (now a part of Teijin Seiki, a subsidiary of Nabtesco) called its system Solid Object Ultraviolet Plotter (SOUP), while Sony/D‐MEC (now D‐MEC) called its product Solid Creation System (SCS).
    [Show full text]
  • Additive Manufacturing – Integration of Functions in EMI-Shields
    1 Royal Institute of Technology Master Thesis Additive Manufacturing – Integration of Functions in EMI-shields Author: Author: André JOHANSSON KUCERA Alexandra LIDHOLM Course: Course: MG212X, Degree Project in Production SE202X, Degree Project Engineering and Management in Solid Mechanics Supervisor KTH: Supervisor KTH: Amir RASHID, Bo ALFREDSSON, professor in Industrial professor in Solid Production Mechanics Examiner KTH: Examiner KTH: Amir RASHID Bo ALFREDSSON Supervisor Saab AB: Mussie GEBRETNSAE June 2019 i Abstract Additive manufacturing enables a simplified production process of components with complex geometry based on computer aided three-dimensional design. The technology of creating components layer-by-layer allows an efficient process with the ability to design parts with specific properties which can be difficult to obtain when conventional manufacturing methods are used. In this master thesis, an EMI shield was analyzed where the choice of manufacturing process was of interest. Producing the shield with additive manufacturing, instead of conventional methods, and how to integrate different materials in the process were investigated. The possibility to produce the shield and its components in the same process would result in a shorter production process with less process steps and would be an effective approach for future applications. In the current EMI shield, each component has a specific function with high demands in terms of temperature resistance, weight and EMC. These requirements must be taken into account when choosing manufacturing method and suitable materials in order to obtain desired characteristics of the shield. In the analysis of creating an electromagnetic interference (EMI) shield with multi-materials, a comprehensive literature study was conducted where different AM methods and available materials were investigated.
    [Show full text]
  • Design for Additive Manufacturing of Composite Materials and Potential Alloys: a Review
    Manufacturing Rev. 2016, 3,11 Ó H.A. Hegab, Published by EDP Sciences, 2016 DOI: 10.1051/mfreview/2016010 Available online at: http://mfr.edp-open.org REVIEW OPEN ACCESS Design for additive manufacturing of composite materials and potential alloys: a review Hussien A. Hegab* Department of Mechanical Design and Production Engineering, Cairo University, 12613 Giza, Egypt Received 1 December 2015 / Accepted 23 May 2016 Abstract – As a first step of applying additive manufacturing (AM) technology, plastic prototypes have been pro- duced using various AM Process such as Fusion Deposition Modeling (FDM), Stereolithography (SLA) and other processes. After more research and development, AM has become capable of producing complex net shaped in mate- rials which can be used in applicable parts. These materials include metals, ceramics, and composites. Polymers and metals are considered as commercially available materials for AM processes; however, ceramics and composites are still considered under research and development. In this study, a literature review on design for AM of composite materials and potential alloys is discussed. It is investigated that polymer matrix, ceramic matrix, metal matrix, and fiber reinforced are most common composites through AM. Furthermore, Functionally Graded Materials (FGM) is considered as an effective application of AM because AM offers the ability to control the composition and optimize the properties of the built part. An example of FGM through using AM technology is the missile nose cone which includes an ultra-high temperature ceramic graded to a refractory metal from outside to inside and it used for sustaining extreme external temperatures. During this work, different applications of AM on different classifica- tions of composite materials are shown through studying of industrial objective, the importance of application, processing, results and future challenges.
    [Show full text]
  • Fabrication of Multi-Material Structures Using Ultrasonic Consolidation and Laser-Engineered Net Shaping
    Utah State University DigitalCommons@USU All Graduate Theses and Dissertations Graduate Studies 12-2010 Fabrication of Multi-Material Structures Using Ultrasonic Consolidation and Laser-Engineered Net Shaping John Olorunshola Obielodan Utah State University Follow this and additional works at: https://digitalcommons.usu.edu/etd Part of the Mechanical Engineering Commons Recommended Citation Obielodan, John Olorunshola, "Fabrication of Multi-Material Structures Using Ultrasonic Consolidation and Laser-Engineered Net Shaping" (2010). All Graduate Theses and Dissertations. 776. https://digitalcommons.usu.edu/etd/776 This Dissertation is brought to you for free and open access by the Graduate Studies at DigitalCommons@USU. It has been accepted for inclusion in All Graduate Theses and Dissertations by an authorized administrator of DigitalCommons@USU. For more information, please contact [email protected]. FABRICATION OF MULTI-MATERIAL STRUCTURES USING ULTRASONIC CONSOLIDATION AND LASER-ENGINEERED NET SHAPING by John Olorunshola Obielodan A dissertation submitted in partial fulfillment of the requirements for the degree of DOCTOR OF PHILOSOPHY in Mechanical Engineering Approved: _____________________ _____________________ Dr. Brent Stucker Dr. Thomas Fronk Major Professor Committee Member _____________________ _____________________ Dr. Leijun Li Dr. Yibin Xue Committee Member Committee Member _____________________ _____________________ Dr. Randy Jost Dr. Byron R. Burnham Committee Member Dean of Graduate Studies UTAH STATE UNIVERSITY Logan, Utah 2010 ii Copyright © John Olorunshola Obielodan 2010 All Rights Reserved iii ABSTRACT Fabrication of Multi-material Structures Using Ultrasonic Consolidation and Laser-Engineered Net Shaping by John Olorunshola Obielodan, Doctor of Philosophy Utah State University, 2010 Major Professor: Dr. Brent E. Stucker Department: Mechanical and Aerospace Engineering This research explores the use of two additive manufacturing processes for the fabrication of multi-material structures.
    [Show full text]
  • Naval Surface Warfare Center Technical Overview of Additive
    Naval Surface Warfare Center Carderock Division West Bethesda, MD 20817-5700 NSWCCD-61-TR–2014/16 April 2014 Survivability, Structures, and Materials Department Technical Report Technical Overview of Additive Manufacturing by Caroline Scheck, Nicholas Jones, Stephanie Farina, Charlotte George, and Mark Melendez (Naval Surface Warfare Center, Carderock Division) Approved for public release; distribution is unlimited. Form Approved REPORT DOCUMENTATION PAGE OMB No. 0704-0188 Public reporting burden for this collection of information is estimated to average 1 hour per response, including the time for reviewing instructions, searching existing data sources, gathering and maintaining the data needed, and completing and reviewing this collection of information. Send comments regarding this burden estimate or any other aspect of this collection of information, including suggestions for reducing this burden to Department of Defense, Washington Headquarters Services, Directorate for Information Operations and Reports (0704-0188), 1215 Jefferson Davis Highway, Suite 1204, Arlington, VA 22202-4302. Respondents should be aware that notwithstanding any other provision of law, no person shall be subject to any penalty for failing to comply with a collection of information if it does not display a currently valid OMB control number. PLEASE DO NOT RETURN YOUR FORM TO THE ABOVE ADDRESS. 1. REPORT DATE (DD-MM-YYYY) 2. REPORT TYPE 3. DATES COVERED (From - To) Final - 4. TITLE AND SUBTITLE 5a. CONTRACT NUMBER Technical Overview of Additive Manufacturing 5b. GRANT NUMBER 5c. PROGRAM ELEMENT NUMBER 6. AUTHOR(S) 5d. PROJECT NUMBER Caroline Scheck, Nicholas Jones, Stephanie Farina, Charlotte George, and 5e. TASK NUMBER Mark Melendez (Naval Surface Warfare Center, Carderock Division) 5f.
    [Show full text]
  • 3D Druck: Grundlagen Und Ausgewählte Anwendungsbeispiele in Der Medizin Gliederung
    3D Druck: Grundlagen und ausgewählte 3D Druck:Anwendungsbeispiele Grundlagen und in der ausgewählte Medizin Anwendungsbeispiele in der Medizin Vorbereitet für: Marketing Club Berlin e.V. Bülowstraße 66, 10783 Berlin Präsentation im: MotionLab ML GmbH Bouchéstrasse 12, Halle 20, 12435 Berlin Vorbereitet von: Martin G. Bernhard Gastprofessor an der Staatlichen Universität von Montes Claros Dipl.-Ing. (Dipl.-Wirtschaftsing.), M.B.A. Eiswerderstr. 18, Geb. 148 13585 Berlin Berlin, den 27. Juni 2018 27. Juni 2018 Martin G. Bernhard Page 1 3D Druck: Grundlagen und ausgewählte Anwendungsbeispiele in der Medizin Gliederung 1. 3D Druck: historischer Überblick u. Einführung 1 2. Beispiele für Anwendungsfelder in der Medizin 10 3. Ausblick 19 27. Juni 2018 Martin G. Bernhard Seite 2 3D Druck: Grundlagen und ausgewählte Anwendungsbeispiele in der Medizin Meilensteine des 3D-Drucks (1): Erstes Patent bereits 1987 mit dem Stereolithographie Aperatus von Charles Hull. Das erste Patent erhielt Charles Hull Prinzip eines SLA -Druckers: ( 3D Systems) für seinen Eine dünne Schicht flüssiger Harz in einer "Stereolithography Aperatus" (1987), Wanne wird schichtweise durch eine SLA 3D Drucker. lichtaktivierte Polymerisation auf einer Platte gehärtet die sich langsam nach unten schiebt. 2007, Ablauf des Patentschutzes: Formlab und später Sharebot und weitere Firmen brachten SLA Drucker auf den Markt. Gehärtetes Kunstharz Bauteile werden Schicht für Schicht, additiv aufgebaut. Flüssiges Kunstharz Heute können so z.B. Wanne Handtaschen gefertigt: werden => https://www.youtube.com/ watch?v=-3Enqtrl5Xk Quelle(n): 1) Terry Wohlers - Early Research & Development , 2005. 2)27. https://en.wikipedia.org/wiki/Chuck_Hull Juni 2018 Martin G. Bernhard Seite 3 and Charles Hull (Charles W. Hull): Stereolithography (3D Printing).
    [Show full text]