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  • (PDF) Accuracy of three-dimensional printing for ...

    2015-10-7 · Objective: Three-dimensional (3D) printing is a recent technological development that may play a significant role in orthodontic diagnosis and …

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  • (PDF) A Comparison between 3D Scanning and CMM

    The paper presents a comparison between Coordinate Measuring Machine and 3D white light scanning technologies as applied to the dimensional inspection of turbo-machinery parts such as turbine blade.

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  • (PDF) Acquisition and Reconstruction of a Turbine Blade ...

    PDF | On Jun 30, 2004, Martorelli M. and others published Acquisition and Reconstruction of a Turbine Blade for a Comparative Analysis between two Non-Contact Reverse Engineering Methodologies ...

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  • Developments in investment casting process—A review ...

    2012-11-1 · It is difficult to machine the three dimensional complex shape of the blades. Therefore, it is necessary for the researchers to improve the accuracy and surface finish of turbine blades. Mitchell (1999) made a successful attempt in this regard to explain and improve the construction of a turbine blade. As per his study, in a turbine blade, non ...

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  • Modeling the investment casting of a titanium crown ...

    2007-1-1 · A three-dimensional (3D) digital image generated by X-ray tomography was used to generate an accurate geometric representation of a molar crown casting. Previously reported work was significantly expanded upon by including transport of dissolved oxygen and impurity sources upon the arbitrarily shaped surface of the crown, and improved coupling ...

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  • (PDF) Dimensional accuracy analysis in casting using ...

    Investment Casting (IC) technology is a fast and efficient way of fabricating metal parts with complex shapes, in small volume production. The objective of the paper is …

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  • Use of Miniature Step Gauges to Assess the Performance of ...

    2020-1-29 · for the measurement of castings and cores in the automotive industry [12], for the measurement of turbine blades [13], in the biomedical field [14,15], and in the small range for evaluating wear on cutting tools [16]. Particularly relevant for this kind of instruments is the fringe projection mode, for

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  • Industrial Applications of 3D Printing: The Ultimate Guide ...

    The aerospace and defence (A&D) industry is one of the earliest adopters of 3D printing, with the first use of the technology going back to 1989. Now, three decades later, A&D represents a 16.8% share of the 10.4 billion additive manufacturing market and heavily contributes to ongoing research efforts within the industry.

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  • What is 3D printing? How does a 3D printer work? Learn 3D ...

    What is 3D Printing? 3D printing or additive manufacturing is a process of making three dimensional solid objects from a digital file. The creation of a 3D printed object is achieved using additive processes. In an additive process an object is created by laying down successive layers of material until the object is created.

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  • Aleksa MILOVANOVIĆ

    Clear dental aligners are used for treating orthodontic anomalies (misaligned teeth, inappropriate contact between upper and lower teeth etc.), minor irregularities and bruxism.

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  • Modeling the investment casting of a titanium crown ...

    2007-1-1 · A three-dimensional (3D) digital image generated by X-ray tomography was used to generate an accurate geometric representation of a molar crown casting. Previously reported work was significantly expanded upon by including transport of dissolved oxygen and impurity sources upon the arbitrarily shaped surface of the crown, and improved coupling ...

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  • US4575330A - Apparatus for production of three-dimensional ...

    A system for generating three-dimensional objects by creating a cross-sectional pattern of the object to be formed at a selected surface of a fluid medium capable of altering its physical state in response to appropriate synergistic stimulation by impinging radiation, particle bombardment or chemical reaction, successive adjacent laminae, representing corresponding successive adjacent …

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  • What is 3D printing? How does a 3D printer work? Learn 3D ...

    What is 3D Printing? 3D printing or additive manufacturing is a process of making three dimensional solid objects from a digital file. The creation of a 3D printed object is achieved using additive processes. In an additive process an object is created by laying down successive layers of material until the object is created.

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  • Industrial Applications of 3D Printing: The Ultimate Guide ...

    The aerospace and defence (A&D) industry is one of the earliest adopters of 3D printing, with the first use of the technology going back to 1989. Now, three decades later, A&D represents a 16.8% share of the 10.4 billion additive manufacturing …

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  • The Best Industrial Metal and Plastic 3D Printers I 3D Systems

    2021-8-24 · ProX SLS 6100. Production-grade nylon 3D printer delivering best-in-class part quality, fast build times and automated production tools. ProX 800. SLA quality at high throughput to address the broadest range of applications. ProJet MJP 2500/2500 Plus. MultiJet Printing Quality, Speed and Ease of Use Made Accessible.

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  • Processing Parameters for Selective Laser Sintering or ...

    2018-7-11 · LPBF-produced ceramic parts have potential to impact several applications such as medical and dental components [8, 9, 10], metal casting molds , thin wall structures, turbine blades, nozzles , and thermal or electrical insulation .

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  • Dental 3D-Printing: Transferring Art from the Laboratories ...

    2021-1-4 · 1. Introduction. Three-Dimensional (3D) printing, also known as rapid prototyping (RP) or additive manufacturing (AM), involves the actual layer by layer addition of a material to fabricate an object or a structure using computer-aided designs and computer-aided manufacturing (CAD/CAM) technology or using advanced imaging and scanning [].This results in the development of custom …

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  • AM innovation - EPO

    2021-8-4 · Turbine blades represent a very promising field of application for AM due to their complex geometry. Those made of nickel superalloy powder offer a recent case in point. Additive-manufactured blades with an improved internal cooling system constitute another success story.

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  • Surface Topography: Metrology and Properties - IOPscience

    An international forum for academics, industrialists and engineers to publish the latest research in surface topography measurement and characterisation, instrumentation development and the properties of surfaces.

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  • Technique for Achieving a Passive Framework Fit: A ...

    2004-4-1 · The importance of achieving a passive fit between a cast metal framework or bar and the supporting implant abut-ments is frequently cited in the dental literature as essential for the long-term success of an implant-supported restoration.1–3 The “passive fit” concept, however, remains controversial and only partially understood.2 At present, there is no clear consensus as …

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  • Foundry Manual - Part 3 - Maritime

    2018-2-15 · For Grade B and for low-alloy steel, flame cutting with the oxyacetylene, oxyhydrogen, or oxypropane torch is the best method to use. Thorough cleaning of the casting is important to make it easier to start the cut and to assure a uniform cut. The gates and risers should be cut about three sixteenths or three-eighths of an inch from the casting.

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  • Integrating Additive Manufacturing with Traditional ...

    Integrating Additive Manufacturing with Traditional Manufacturing discusses the factors manufacturers should consider when adding an additive manufacturing (AM) component to a traditional manufacturing operation, including cost, logistics, and best uses of AM with traditional manufacturing, among other concerns. Originally used for prototyping, AM has increasingly …

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  • ROMER Absolute Arm

    A first in the world of portable measuring arms: The ROMER Absolute Arm features absolute encoders and is therefore the first measuring arm which does not require referencing before measurement. When the arm is turned on, it's ready to go. …

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  • Final Exam Study Guide Dental Materials Flashcards

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  • Sci-Hub: removing barriers in the way of science

    The Sci-Hub project supports Open Access movement in science. Research should be published in open access, i.e. be free to read. The Open Access is a new and advanced form of scientific communication, which is going to replace outdated subscription models.

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  • Manufacturing Processes of Centrifugal pumps at Milnars ...

    2016-8-17 · 55 Chapter: Three 4 Theory of Centrifugal Pump 37. 56 Definition4.1 Head – A measure of pressure, expressed in meters for centrifugal pumps. Indicates the height of a column of water being moved by the pump (without friction …

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  • Additive Manufacturing of Polymer Materials: Progress ...

    2021-2-28 · Additive manufacturing (AM), interchangeably termed as three-dimensional printing (3DP) is an emerging disruptive technology; which is currently stimulating innovations in design and engineering, materials and manufacturing, reducing cost and waste, and increasing efficiency.

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  • Technique for Achieving a Passive Framework Fit: A ...

    2004-4-1 · The importance of achieving a passive fit between a cast metal framework or bar and the supporting implant abut-ments is frequently cited in the dental literature as essential for the long-term success of an implant-supported restoration.1–3 The “passive fit” concept, however, remains controversial and only partially understood.2 At present, there is no clear consensus as …

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  • A Review of Additive Manufacturing - Hindawi

    2012-8-16 · Additive manufacturing processes take the information from a computer-aided design (CAD) file that is later converted to a stereolithography (STL) file. In this process, the drawing made in the CAD software is approximated by triangles and sliced containing the information of each layer that is going to be printed. There is a discussion of the relevant additive manufacturing …

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  • Recent advances in the manufacturing processes of ...

    2016-9-14 · The strips that are produced by this method have a thickness in the range of 25 µm to 1 mm tape thickness , . The slurry dipping and slip casting methods can be used in the case where a limited number of layers are to be deposited. In slip casting, there is …

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  • Functionally graded materials classifications and ...

    2019-10-12 · Over the last few years, many classifications have been proposed for functionally graded materials (FGMs). In this Paper, critical review of different available classifications for FGM based on their physical, structural and manufacturing characteristics are presented. Advantages and limitations of each fabrication method for use in a given application is correspondingly …

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  • Final Exam Study Guide Dental Materials Flashcards

    Start studying Final Exam Study Guide Dental Materials. Learn vocabulary, terms, and more with flashcards, games, and other study tools.

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  • IOP Conference Series: Materials Science and Engineering ...

    2016-9-25 · The three-dimensional model of the rotor makes possible to apply the same theorem, leading to the surface of revolution enveloping the helical surface. An application will be also presented to determine the axial profile of the disk cutter, numeric and graphics, following the proposed algorithm.

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  • Manufacturing Processes of Centrifugal pumps at Milnars ...

    2016-8-17 · 55 Chapter: Three 4 Theory of Centrifugal Pump 37. 56 Definition4.1 Head – A measure of pressure, expressed in meters for centrifugal pumps. Indicates the height of a column of water being moved by the pump (without friction …

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  • Open Access Journals

    We are an Open Access publisher and international conference Organizer. We own and operate 500 peer-reviewed clinical, medical, life sciences, engineering, and management journals and hosts 3000 scholarly conferences per year in the fields of clinical, medical, pharmaceutical, life sciences, business, engineering and technology.

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    2021-2-1 · Engineering360 is a search engine and information resource for the engineering, industrial and technical communities. We help you quickly find industrial parts, specifications and services.

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  • Additive Manufacturing of Polymer Materials: Progress ...

    2021-2-28 · Additive manufacturing (AM), interchangeably termed as three-dimensional printing (3DP) is an emerging disruptive technology; which is currently stimulating innovations in design and engineering, materials and manufacturing, reducing cost and waste, and increasing efficiency.

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  • Micro-, nano- and hierarchical structures for ...

    Kang B, Sung J and So H (2019) Realization of Superhydrophobic Surfaces Based on Three-Dimensional Printing Technology, International Journal of Precision Engineering and Manufacturing-Green Technology, 10.1007/s40684-019-00163 …

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  • Supercharger Development in the U.S. During the Inter-War ...

    To better market their stainless-steel false teeth, the company called the material Vitallium. But turbine blades were a more demanding application and GE continued its search for a steel that was both durable and forgeable. Late 1930s – 1941. Stellite 21. The war-time demand for turbine blades made forging impractical.

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  • Functionally graded materials classifications and ...

    2019-10-12 · Over the last few years, many classifications have been proposed for functionally graded materials (FGMs). In this Paper, critical review of different available classifications for FGM based on their physical, structural and manufacturing characteristics are presented. Advantages and limitations of each fabrication method for use in a given application is correspondingly …

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  • Design for Additive Manufacturing 201 - Tooling U-SME

    Design for Additive Manufacturing (DFAM) discusses how to conceptualize and create a part design for an additive manufacturing (AM) process. DFAM provides engineers with an incredible degree of freedom. AM processes are capable of creating prototypes or parts with increased complexity, functionality, and integration. AM also allows for other unique manufacturing opportunities, such …

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    2021-8-24 · Machine Design Members-Only Access. Feb 8th, 2021. Member-exclusive content. Advance your design and manufacturing with these technical insights... News. IDEA! Conference Seeks Industry Experts as ...

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    2017-12-16 · 8. Documents and records of intra-Community transfers of dual-use items listed in Annex I shall be kept for at least three years from the end of the calendar year in which a transfer took place and shall be produced to the competent authorities of the Member State from which these items were transferred on request. 9.

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  • Recent advances in prosthodontics crown & bridge courses ...

    2014-3-6 · LITHIUM ION STRENGTHENING OF DENTAL PORCELAIN UP Vol 8 No 3 1995 Dental Ceramics can provide unsurpased aesthetic qualities when used to restore natural teeth. However one of the inherent disadvantages of these …

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    PDH for Professional Engineers. PDH Engineering. CED is an approved provider in the states of FL, IN, MD, NC, NJ and NY. Our courses are accepted by all state licensing boards mandating CPC. Our course providers are highly qualified professional …

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  • Defence and Strategic Goods List 2019

    2019-3-27 · Part 1A — Preliminary. Division 1 — Preliminary. 1 Name This instrument is the Defence and Strategic Goods List 2019.. 1A Commencement (1) Each provision of this instrument specified in column 1 of the table commences, or is taken to have commenced, in …

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  • Home Page: Journal of Prosthetic Dentistry

    Elsevier journal websites will be undergoing maintenance on Wednesday, August 25 from 12:01 AM to 4:00 PM US Eastern. During this window we have …

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    Бесплатный сервис Google позволяет мгновенно переводить слова, фразы и веб-страницы с английского более чем на 100 языков и обратно. Загрузите файл в одном из следующих форматов: DOC, DOCX, ODF, PDF, PPT, PPTX, PS, RTF, TXT, XLS, XLSX.

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    Our metrology products help manufacturers to maximise production output, to reduce significantly the time taken to produce and inspect components, and to keep their machines running reliably. In the fields of industrial automation and motion systems, our position measurement and calibration systems allow builders to manufacture highly accurate and reliable products.

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  • JACS 1.7: Detailed (four-digit) subject codes

    2021-8-17 · JACS 1.7 was used from 2002/03 to 2006/07. A Medicine and Dentistry A100 Pre-clinical Medicine Vocational science of preventing, diagnosing, alleviating or curing disease in homo sapiens. Includes such areas as Anatomy, Physiology, Pharmacy and Nutrition which can be specialisms in their own right. A200 Pre-clinical Dentistry

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    2017-12-5 · Materiality — the use of various materials in architecture — has been fundamental to the design and construction of buildings, and materials science has traditionally responded to needs ...

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    Global Sources is the leading China business-to-business (B2B) wholesale marketplace that connects buyers worldwide with Verified Suppliers from China and Asia. Global Sources is the one-stop online B2B marketplace that serves people on both the sourcing and buying ends of the business with a platform to connect and drive profitable trade.

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  • What are X rays? A simple introduction - Explain that Stuff

    2020-12-26 · X rays are a kind of super-powerful version of ordinary light: a higher- energy form of electromagnetic radiation that travel at the speed of light in straight lines (just like light waves do). If you could pin X rays down on a piece of paper …

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  • Home Page: Journal of Prosthetic Dentistry

    Elsevier journal websites will be undergoing maintenance on Wednesday, August 25 from 12:01 AM to 4:00 PM US Eastern. During this window we have …

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  • JACS 1.7: Detailed (four-digit) subject codes

    2021-8-17 · JACS 1.7 was used from 2002/03 to 2006/07. A Medicine and Dentistry A100 Pre-clinical Medicine Vocational science of preventing, diagnosing, alleviating or curing disease in homo sapiens. Includes such areas as Anatomy, Physiology, Pharmacy and Nutrition which can be specialisms in their own right. A200 Pre-clinical Dentistry

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    2021-1-1 · The registers or records and the documents referred to in paragraphs 1 and 2 shall be kept for at least three years from the end of the calendar year in which the export took place or the brokering services were provided. They shall be produced, on request, to the competent authorities of the Member State in which the exporter is established or ...

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    Our metrology products help manufacturers to maximise production output, to reduce significantly the time taken to produce and inspect components, and to keep their machines running reliably. In the fields of industrial automation and motion systems, our position measurement and calibration systems allow builders to manufacture highly accurate and reliable products.

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  • CS Alloys - Specifications

    2012-8-7 · These alloys are based chemically and produced in the same manner as by the former Cerro low melt alloys. CS Alloys Name. Bismuth (Bi) Lead (Pb) Tin (Sn) Cadmium (Cd) Indium (In) Other. Melting Range In Degrees Fahrenheit.

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  • Professor Graeme Meintjes MBChB (UCT) FRCP (Glasgow) FCP ...

    2021-8-24 · Selected publications: Meintjes G, Stek C, Blumenthal L, Thienemann F, Schutz C, Buyze J, Ravinetto R, van Loen H, Nair A, Jackson A, Colebunders R, Maartens G, Wilkinson RJ, Lynen L; PredART Trial Team.Prednisone for the …

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  • The Lovejoy Coupling Handbook - Lovejoy - a Timken company

    The number of teeth in contact is a function of the true form of the teeth. If all teeth in the hub and sleeve are identical the maximum number will be in contact. As the teeth wear into place the more teeth come into contact. Therefore initial tooth wear makes the coupling stronger, but can increase the friction loading too.

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  • Dallas Invents: 111 Patents Granted for Week of April 20 ...

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    Subaru's EJ207 engine was a 2.0-litre horizontally-opposed and turbocharged four-cylinder engine. For Australia, the EJ207 was first offered in the Subaru GC Impreza WRX STi in 1999 and subsequently powered the Subaru GD Impreza WRX STi.

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    Subaru's EJ255 engine was a turbocharged 2.5-litre horizontally-opposed (or 'boxer') four-cylinder engine. For Australia, the EJ255 engine was introduced in the Subaru SG Forester XT in 2003, but subsequently offered in the GD/GG Impreza WRX and BL Liberty GT (see table below). Developed in conjunction with the more powerful EJ257 engine, key features for the EJ255 engine included its:

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  • INDIAN DENTAL ACADEMY: Recent advances in Prosthetic Dentistry

    2013-7-31 · Indian Dental Academy is the Leader in continuing dental education , training dentists in all aspects of dentistry and offering a wide range of dental certified courses in different formats and courses we offer Dental Implantology, fixed orthodontics, rotary endodontics,General dentistry. and various online dental courses having best faculty of world wide repute

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