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  • Engine turbine blade tradition and 3D printing ...

    2020-4-9 · Turbine blades are one of the most important parts of the engine, and the materials used are often very expensive. As a typical free-form surface part, an important feature of the turbine blade is that it is thin and easy to deform during processing, and the material is usually a hard-to-machine alloy material based on Monel, INCONEL, titanium and nickel, which adds to the difficulty of ...

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  • Metal casting processes - IIT G

    2016-2-29 · • Possible to cast practically any material: ferrous or non-ferrous. • The necessary tools required for casting moulds are very simple and inexpensive. As a result, for production of a small lot, it is the ideal process. • There are certain parts (like turbine blades) made from metals and alloys that can only be processed this way.

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  • Developments in investment casting process—A

    2012-11-1 · Nowadays, dental crowns are also fabricated by investment casting using ice patterns, generated by rapid freeze prototyping. (Liu and Leu, 2003) carried out a study in which a comparison was made between the surface roughnesses of dental crowns produced from the ice patterns compared to wax patterns. It was found that the surface roughness of the dental crowns produced in the former …

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  • The Unidirectional Crystallization of Metals and Alloys ...

    2015-1-1 · In industrial practice, SC castings, that have experienced high angle grain boundaries are not used because they significantly reduce the casting (turbine blades) work time at raised temperature. Slivers are characterized by high elongation and similar orientation in the direction of solidification ( …

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  • Progress in Investment Castings - IntechOpen

    2012-12-3 · Patterns for investment casting produced in dies are prepared for assembly in different ways. Large patterns are set-up and are processed individually, while small to medium size pat‐ terns are usually assembled into clusters for economy in processing. For example, pattern clusters of aircraft turbine blades may range from 6 to 30 parts.

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  • Homogenization Heat Treatment - an overview ...

    Therefore a different production route had to be developed for turbine parts in this environment. Today, the blades and aerofoils of high-pressure turbines are generally produced by investment casting processes in order to generate single-crystal structures, and hollow profiles to allow active cooling.

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  • Investment Casting - an overview | ScienceDirect Topics

    In Introduction to Aerospace Materials, 2012. 6.4.1 Investment casting. Investment casting is generally used for making complex-shaped components that require tighter tolerances, thinner walls and better surface finish than can be obtained with sand casting. The distinguishing feature of investment casting is the way the mould is made. A pattern of the part is made with wax, which is then ...

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  • Gas turbines: operating conditions, components and ...

    2014-1-1 · Superalloys are typically the material of choice for turbine hot gas path components (blades, vanes and ring segments). The γ′ strengthened superalloys exhibit a unique behavior, maintaining their strength and creep properties up to approximately 0.7 times their melting temperature. The superalloys have been the subject of extensive development efforts driven primarily by the aero engine industry.

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  • Why is turbine Blade made by casting? - Mechanical ...

    2017-12-25 · The HP turbine blades and nozzle guide vanes of modern gas turbine engines use very sophisticated internal air cooling and external surface air film cooling to maintain safe operating temperatures. There are serpentine (multi-pass) air cooling passages inside the blades/guide vanes, and also internal passages for supplying air to the film ...

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  • Nickel-Based Superalloys - an overview |

    Nickel is produced by: (1) an electrolytic method, in which the nickel-rich sulfide ore is calcined into oxide, reduced to crude nickel by carbon, and then electrolyzed to obtain pure metallic nickel; (2) a carbonylation method, in which the sulfide mineral of nickel is reacted with carbon monoxide to form nickel tetracarbonyl, which is decomposed by heating to obtain very pure metallic nickel.

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  • Progress in Investment Castings - IntechOpen

    2012-12-3 · Patterns for investment casting produced in dies are prepared for assembly in different ways. Large patterns are set-up and are processed individually, while small to medium size pat‐ terns are usually assembled into clusters for economy in processing. For example, pattern clusters of aircraft turbine blades may range from 6 to 30 parts.

    Get Price
  • Buehler - Metallography Equipment & Supplies for

    Buehler is a manufacturer of metallographic testing equipment including scientific instruments & supplies for cross-sectional material testing. Buehler’s sectioning, mounting, grinding and polishing, imaging and analysis and hardness testing metallographic equipment along with consumables are used by metallurgical, metallography, petrography ...

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  • Non-destructive Testing Applications in Commercial ...

    2006-8-15 · INTRODUCTION. In aircraft maintenance programme it is important to inspect the mechanical damage and assess the extent of the repair work. But in schedule maintenance it is a difficult to finding the defects rapidly, as the maintenance of aircraft must be accomplished within scheduled time and same to be released in time for commercial operation.

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  • UK researchers create low-cost electrospray and ...

    2021-6-10 · Optomec awarded 500K to repair Air Force turbine blades using LENS 3D printing technology Kubi Sertoglu June 16th 2021 - 8:24pm Optisys 3D prints new generation of lightweight high-altitude UAV parts

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  • Casting and its types - SlideShare

    2014-2-22 · Applications: Investment casting is used in the aerospace and power generation industries to produce turbine blades with complex shapes or cooling systems 64. Lost-foam casting Lost-foam casting (LFC) is a type of evaporativepattern casting process that is similar to investment casting except foam is used for the pattern instead of wax.

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  • Dental occupational hazards & Safety Practices in

    Additive manufacturing (AM) is rapidly gaining acceptance in the healthcare sector. Three-dimensional (3D) virtual surgical planning, fabrication of anatomical models, and patient-specific implants (PSI) are well-established processes in the surgical fields. Polyetheretherketone (PEEK) has been used, mainly in the reconstructive surgeries as a reliable alternative to other alloplastic ...

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  • Made-in-China.com - Manufacturers, Suppliers &

    Source quality products Made in China. Find reliable China Suppliers, Manufacturers, Factories, Wholesalers & Exporters on the leading B2B e-commerce website Made-in-China.com.

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  • Metal casting processes - IIT G

    2016-2-29 · • Possible to cast practically any material: ferrous or non-ferrous. • The necessary tools required for casting moulds are very simple and inexpensive. As a result, for production of a small lot, it is the ideal process. • There are certain parts (like turbine blades) made from metals and alloys that can only be processed this way.

    Get Price
  • fe-safe DATA SHEET DURABILITY ANALYSIS SOFTWARE

    2018-9-25 · fe-safe/TURBOlife includes several methods for estimating high temperature material properties so that it can be used with sparse material data sets. fe-safe/TURBOlife creep-fatigue algorithms have been successfully applied to gas turbine blades, steam turbine components, exhaust components and turbocharger impellers. Fatigue of rubber. fe-safe ...

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  • Wind power planet carrier castings process

    2018-10-22 · In addition, the upper flange and the end cap are connected to the connecting arm by means of an assembly space. In the overall structure, it adopts split connection, which has the advantages of simple structure, easy processing and safe and reliable use. 3. Technical development and specific requirements for wind turbine gearbox castings

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  • CHAPTER 11: METAL ALLOYS APPLICATIONS AND

    2014-11-9 · casings. Very large magnesium castings can be made, such as intermediate compressor casings for turbine engines. These include the Rolls Royce Tay casing in MSR, which weighs 130kg and the BMW Rolls Royce BR710 casing in RZ5. Other aerospace applications include auxiliary gearboxes (F16, Euro-fighter 2000, Tornado) in MSR or

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  • Patient-Specific Surgical Implants Made of 3D Printed

    Additive manufacturing (AM) is rapidly gaining acceptance in the healthcare sector. Three-dimensional (3D) virtual surgical planning, fabrication of anatomical models, and patient-specific implants (PSI) are well-established processes in the surgical fields. Polyetheretherketone (PEEK) has been used, mainly in the reconstructive surgeries as a reliable alternative to other alloplastic ...

    Get Price
  • Buehler - Metallography Equipment & Supplies for

    Buehler is a manufacturer of metallographic testing equipment including scientific instruments & supplies for cross-sectional material testing. Buehler’s sectioning, mounting, grinding and polishing, imaging and analysis and hardness testing metallographic equipment along with consumables are used by metallurgical, metallography, petrography ...

    Get Price
  • Casting and its types - SlideShare

    2014-2-22 · Applications: Investment casting is used in the aerospace and power generation industries to produce turbine blades with complex shapes or cooling systems 64. Lost-foam casting Lost-foam casting (LFC) is a type of evaporativepattern casting process that is similar to investment casting except foam is used for the pattern instead of wax.

    Get Price
  • Stainless Steels - University of Cambridge

    2020-2-14 · An alternative is use solutes (such as Nb, Ti, V or Ta) which have a greater affinity for carbon than chromium. These are called stabilisedstainless steels, for example, types 321 (Ti stabilised) and 347 (Nb stabilised) austenitic stainless steels.Titanium cannot in general be used to make alloys deposited by arc welding because it readily oxidises; type 347 is used instead as a filler metal.

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  • Materials research & measurement needs for ceramics ...

    2020-7-22 · Binder jetting is easy to implement and scalable but provides relatively low fill densities (30%-35% by volume), rough surfaces, and is limited in terms of its resolution and ability to co-process several materials. 27 DIW works for a wide choice of materials, allows for suspensions with high solid loadings, offers a multi-material capability ...

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  • nitrkl.ac.in

    2009-5-14 · The production of “defect-free” vacuum castings was the aim of the study. Most turbine blades for the aerospace industry are now produced predominantly by directional solidification. However, in other industries using turbine power for ships or rail, equiaxed blades are commonly used for ease of manufacture and cost effectiveness.

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  • The New 400 watt turbine! - Bradley University

    2008-2-12 · thermoplastics, high-quality aluminum castings, stainless steel hardware and integrated, microprocessor based control electronics. The turbine comes standard with a built-in voltage regulator, quiet computer controlled stall of the blades in high winds, and …

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  • OCTOBER/NOVEMBER 2011 VOLUME 13 | 5 - GOM

    2013-2-5 · investment-cast turbine blades and nozzle guide vanes for aerospace and industrial gas turbines. Built in 1970, the site has seen steady expansion to its present two plants, with a combined manufacturing space of 23,760m2. The facility covers the complete investment casting process chain from wax pattern production, including its

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  • AL0993 Lesson # 8 - GlobalSecurity.org

    2005-4-27 · LESSON 8. Allison T63, Pratt & Whitney T73 and T74, and General Electric T700. Reference Text AL0993, chapters 7, 8, 9, and 10. To teach you to distinguish between the four aircraft engines ...

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  • Different Types of Casting Processes used in

    2021-6-29 · A brief discussion of the different types of casting processes. Image credit: Funtay/Shutterstock.com. Casting manufacturing is a process in which liquefied material, such as molten metal, is poured into the cavity of a specially designed mold and allowed to harden. After solidification, the workpiece is removed from the mold to undergo various finishing treatments or for use as a final product.

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  • Foundry Manual - Part 3 - Maritime

    I claim 1. A dental pressure air operated turbine unit, comprising a hand piece having a handgrip, a turbine head, means connecting said turbine head with one end of said handgrip, said turbine head having a tool-driving turbine rotor driven by compressed air, a connecting part connected to the other end of said handgrip, a supply line having an end connected to said connecting part, said ...

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  • TURBINE UNIT FOR DENTISTS - SIEMENS

    Advantages include easy cleaning, good corrosion resistance, durability, economy, food flavor protection, and sanitary design. According to the U.S. Department of Commerce, 1992 shipments of all stainless steel totaled 1,514,222 tons.

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  • Removal of Modern Ceramics - AEGIS Dental Network

    2019-8-14 · The SWT-6.0-120 Direct Drive turbine is designed to reduce the cost of energy offshore 4. Optimized offshore turbine design Turbine design optimized for offshore installation and commissioning High emphasis on safe and comfortable working environment, and cost effective service and maintenance Advanced diagnostics system to reduce

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  • Siemens Renewable Energy

    The MACRS Asset Life table is derived from Revenue Procedure 87-56 1987-2 CB 674. The table specifies asset lives for property subject to depreciation under the general depreciation system provided in section 168(a) of the IRC or the alternative depreciation system provided in section 168(g).

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  • MACRS Asset Life table - Thomson Reuters

    Dental amalgam has been used extensively for many years in dentistry as the material of choice for fillings. In recent years there has, however, been much debate both within the profession and amongst the general public, about the safety of the material, and more specifically, the safety of the MERCURY used in the mixture.

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  • Hong Kong Dental Association Ltd.

    2021-6-24 · Casting process is generally used for small castings that cannot be produced by normal manufacturing techniques, such as industrial gas turbine blades and vanes/nozzles with complex shapes, or airplane parts that have to withstand high temperatures. The mould is made by making a pattern using wax or some other Material that can be melted away.

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  • Electron Thermal Processing Equipment B.V. of Nijkerk

    2018-12-6 · This chapter presents the modeling and simulation results of variable speed wind turbine driven by doubly fed induction generator (DFIG). The feeding of the generator is ensured through its stator directly connected to the electrical grid and by its rotor connected to the grid through two power converters, which are controlled by the pulse width modulation (PWM) technique.

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  • C 8 - investment casting - SlideShare

    2020-2-14 · An alternative is use solutes (such as Nb, Ti, V or Ta) which have a greater affinity for carbon than chromium. These are called stabilisedstainless steels, for example, types 321 (Ti stabilised) and 347 (Nb stabilised) austenitic stainless steels.Titanium cannot in general be used to make alloys deposited by arc welding because it readily oxidises; type 347 is used instead as a filler metal.

    Get Price
  • Rolls-Royce explains problem with Trent 1000 | The

    2020-2-25 · Bruce Satra, Utah, made the cylinder and head castings for both engines, but Fadden machined the crankcase for the 1-cylinder engine from bar stock (billet) material. To produce the 3-cylinder radial engine, Fadden made patterns from wood and used the patterns to sand cast the crankcase and gear case from aluminum.

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