(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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2015-10-7 · Objective: Three-dimensional (3D) printing is a recent technological development that may play a significant role in orthodontic diagnosis and …
Get PriceThe 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.
Get PricePDF | 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 ...
Get Price2012-11-1 · 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 ...
Get Price2007-1-1 · 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 ...
Get PriceInvestment 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 …
Get Price2020-1-29 · 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
Get PriceThe 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.
Get PriceWhat 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.
Get PriceClear dental aligners are used for treating orthodontic anomalies (misaligned teeth, inappropriate contact between upper and lower teeth etc.), minor irregularities and bruxism.
Get Price2007-1-1 · 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 ...
Get PriceA 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 …
Get PriceWhat 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.
Get PriceThe 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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Get Price2018-7-11 · 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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Get Price2021-1-4 · 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 …
Get Price2021-8-4 · 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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Get Price2004-4-1 · 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 …
Get Price2018-2-15 · 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.
Get PriceIntegrating 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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Get Price2016-8-17 · 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 …
Get Price2021-2-28 · 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.
Get Price2004-4-1 · 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 …
Get Price2012-8-16 · 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 …
Get Price2016-9-14 · 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 …
Get Price2019-10-12 · 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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Get Price2016-9-25 · 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.
Get Price2016-8-17 · 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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Get Price2021-2-28 · 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.
Get PriceKang 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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Get Price2019-10-12 · 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 …
Get PriceDesign 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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