CONTEXT & CHALLENGE. Another aspect of the disclosure involves a blade comprising an airfoil and an attachment root. 6. The foil 104 is sandwiched between respective surfaces/faces 110 and 112 of the precursors 100 and 102 (e.g., in a fixture (not shown)) and the combination is heated. The manufacturing process is an interesting hybrid of the latest digital technologies — the teams here, dressed from head to toe in white Tyvek suits, use robots and sensors to precisely monitor production — and manual labor. Turbine blades can reach up to 100 meters (328 feet) in length, and will continue to increase in size as the demand for renewable energy grows and as wind turbines are deployed offshore. Turbine Blade Manufacturing At Hi-Tek Manufacturing , production of high-pressure aviation and land-based turbine engine blades is one of our core strengths. A further embodiment may additionally and/or alternatively include the crystalline orientations of the rootward zone and tipward zone being at least 30° out of registry with each other. The process to assemble a wind turbine is carefully orchestrated—there’s a lot to manage, including the wind turbine materials. A further embodiment may additionally and/or alternatively include the tipward zone being of a less dense alloy than the rootward zone. Process for 3D printing wind turbine blade … The rootward zone has said first crystalline direction within 15° of spanwise. For example, when applied to an existing baseline configuration, details of such baseline may influence details of particular implementations. 1. When designing the blade, the innovative manufacturing technology, named ONE SHOT BLADE® technology, able to produce wind turbine blades in “one-piece”, has been taken into account. The root 63 extends from an outboard end at an underside 72 of the platform to an inboard end 74 and has a forward face 75 and an aft face 76 which align with corresponding faces of the disk when installed. U.S. Pat. © 2004-2020 FreePatentsOnline.com. 6, these respective crystallographic directions will be rotated out of registry with the physical geometric directions. 534-538. Current wind turbine blades are made primarily of composite materials such as fiberglass infused with a thermoset resin. For special applications, such as turbine blades made of titanium or high-grade steels, production with WAAM is already established and accepted, see e.g., [4]. As the total electrical output of a turbine partially relies upon the efficiency at which air is able to move across a turbine blade — causing the blades to rotate and the gears to spin — it is crucial that the surface quality of each blade stays pristine throughout its lifetime. 2, taken along line 6-6. Marcin Jr., John J. In the NEE manufacturing process, ... shields have been shown in accelerated rain erosion tests to possess a lifetime greater than that of an offshore wind turbine blade. No. The blades 60 and vanes 59 can be fabricated of superalloy materials, such as cobalt- or nickel-based alloys.
After each copy is heated to harden the ceramic and melt the wax, molten metal is poured into the hollow left by the melted wax.
32. Additive manufacturing offers a faster, more efficient, and far more flexible manufacturing option [10], that specializes in the rapid prototyping, rapid tooling, mass customization, and onsite manufacturing; all things critical for future competition and continued innovation. Pack cementation falls in the category of chemical vapour deposition. The grade represents a new combination of insert substrate, coating and manufacturing processes. Constructed from high-temperature super alloys, we manufacture the most intricate turbine blade designs with geometrically complex internal cooling passages and … The details of one or more embodiments are set forth in the accompanying drawings and the description below. 6 is a schematic sectional view of the distal portion of the airfoil of the blade of FIG. The BRC is composed of educational institutions, government labs, over 40 manufacturers, and service providers. While the blades of a turbine may be one of the most recognizable features of any wind installation, they also represent one of the largest physical challenges in the manufacturing process. A direction 528 is normal to such a machined face. The crystalline orientations of the rootward zone and tipward zone are at least 15° out of registry with each other. A further embodiment may additionally and/or alternatively include the first crystalline direction being a <001> direction. To grossly simplify, workers make the blades from a … The blade 60 has a tipward first section 80 fabricated of a first material and a rootward second section 82 fabricated of a second, different material. With an epoxy thermoset resin, the manufacturing process requires additional heat to cure the resin, which adds to the cost and time to manufacture blades. All turbine blade manufacturing process wholesalers & turbine blade manufacturing process manufacturers come from members. A boundary between the sections is shown as 540. FIG. Accordingly, other embodiments are within the scope of the following claims. As an example, the engine 20 includes rotatable blades 60 and static vanes 59 in the turbine section 28. The orientation for the outboard/distal/tipward portion (e.g., 80 of FIG. Exemplary boron concentrations are 1% to 15% by weight, more particularly 1% to 3% by weight. Alternative engines might include an augmentor section (not shown) among other systems or features. Manufacturing Process and Crystal Growth [edit | edit source] There are several different manufacturing methods that are used in practice to create single crystal turbine blades. The invention relates to a procedure for repair of high pressure turbine blades of an aircraft engine, with the steps:—separating a damaged section of the high pressure turbine blade; and—generating a section to replace the separated section on or upon the high pressure turbine blade by means of laser beam generation from the powder bed, as well as a high pressure turbine blade. NREL Demonstrates New Wind Turbine Blade Manufacturing Methods and Technology March 10, 2020. Therefore the blades have to be precisely manufactured by the precision casting process of investment casting, also known as the ‘lost wax process’. In a further example, the first and second materials differ in at least density. Wind-turbine blade manufacturing has come a long way over the last couple decades. The research obtained throughout the Initiative is expected to lead to novel and innovative approaches that will streamline the blade manufacturing process. Because of their size and aerodynamic complexity, wind turbine blades are skillfully manufactured by hand to ensure the highest level of craftsmanship and to outfit wind turbines with the most reliable and efficient components. This is just another example of how a successful turbine begins with the manufacturing process. The engine 20 includes a first spool 30 and a second spool 32 mounted for rotation about the centerline 500 relative to an engine static structure 36 via several bearing systems 38. No. The first and second materials of the respective sections 80/82 can be selected to locally tailor the performance of the blade 60. The engine 20 includes many components that are or can be fabricated of metallic materials, such as aluminum alloys and superalloys. The significant reduction in time and costs required to manufacture the blade, together with the structural weight reduction allowed by this production process, compared to standard manufacturing processes, … 9. FIG. 4 is an exploded view of the turbine blade of FIG. A further embodiment may additionally and/or alternatively include the tipward zone and the rootward zone having the same composition. The exemplary gas turbine engine 20 is a two-spool turbofan having a centerline (central longitudinal axis) 500, a fan section 22, a compressor section 24, a combustor section 26 and a turbine section 28. 4 further shows a foil 104 having faces 106 and 108 for transient liquid phase bonding (TLP) of the two sections 100 and 102. The blade has a tipward zone and a rootward zone. For example, a “body” is a main or central foundational part, distinct from subordinate features, such as coatings or the like that are supported by the underlying body and depend primarily on the shape of the underlying body for their own shape. Bachman & LaPointe, P.C. In one example, the X % span is, or is approximately, 70% such that the section 80 extends from 70% to 100% span. Accuracy of fit when using the production tools has made us a preferred working partner of major turbine manufacturers and their development departments when it comes to structural rotor blade design. The core airflow is compressed by the first compressor 44 then the second compressor 52, mixed and burned with fuel in the combustor 56, then expanded over the second turbine 54 and first turbine 46. In turn, these methods may then be used to improve blade manufacturing and design procedures. The precursors 100 and 102 are separately cast (e.g., of differing compositions and/or differing crystallographic orientation). 1 is a partially schematic half-sectional view of a gas turbine engine. Further, various benefits can be achieved by locally tailoring the materials. Other cubic structures that have demonstrated epitaxial atomic growth are also relevant (e.g., simple cubic, body centered cubic, and hexagonal close packed). FIGS. Blade machining moves to a new level Competitive manufacturing blades for steam and gas turbines is challenging with machining containing most of the demanding factors in metal cutting: part materials have varying machinability (some of them poor, … This may also include a tip shroud (not shown); Zone 2 Root & Fir Tree: high notched LCF strength, high stress corrosion cracking (SCC) resistance, low density (low density being desirable because these areas provide a large fraction of total mass); Zone 3 Lower Airfoil: high creep strength (due to supporting centrifugal loads with a small cross-section), high oxidation resistance (due to gaspath exposure and heating), higher thermal-mechanical fatigue (TMF) capability/life. All steam turbine blade manufacturing process wholesalers & steam turbine blade manufacturing process manufacturers come from members. One aspect of the disclosure involves a blade comprising an airfoil and an attachment root. 5 and 6 also show a chordwise direction 530 and a direction 532 normal thereto. FIG. 7,762,309 shows casting of a blade having a single-crystal root and a columnar airfoil. turbine blade manufacturing process. While the blades of a turbine may be one of the most recognizable features of any wind installation, they also represent one of the largest physical challenges in the manufacturing process. A further embodiment may additionally and/or alternatively include the tipward zone and the rootward zone being nickel-based superalloy. The disclosure relates to gas turbine engines. In some examples where the disk slot is off longitudinal by an angle θ1, a normal direction to the root faces 75 and 76 will be off of the direction 524 by that angle θ1. More particularly, the disclosure relates to turbine blades. A single turbine blade required a set of cores (typically seven) all of which were different. Although depicted as a turbofan gas turbine engine in the disclosed non-limiting embodiment, it is to be understood that the concepts described herein are not limited to use with turbofan engines and the teachings can be applied to non-engine components or other types of turbomachines, including three-spool architectures and turbines that do not have a fan section. Materials investigations – Database analysis – Analysis of performance variables (DOE) 2. FIG. 2) includes an airfoil 61 that projects outwardly from a platform 62. At our manufacturing facilities in the United States, England, and India, we combine the finest equipment and personnel to produce a wide range of parts for jet engines, missile systems, satellites and spacecraft. Anyang Machinery is specialized in manufacturing both onshore & off shore wind turbine tower and the foundation structure for electricity generation. 8 and 9 show an alternative implementation wherein the rootward portion (root, platform, and proximal airfoil sections) have similar crystalline orientations to the first exemplary implementation. 5 and 7 further show an <010> direction aligned with the axis 524, a <100> direction aligned with 526, and a <110> direction aligned with 530. We manufacture turbine blades following a highly structured and controlled process. The shared alignment of at least one direction (e.g., the <110> direction 533 discussed above) helps improve bonding between the two sections by presenting similar atomic structure of the two regions at the interfaces. 5 is a schematic sectional view of a proximal portion of the blade of FIG. In this example, the airfoil 61 extends over a span from 0% span at the platform 62 to a 100% span at the tip 69. The first shaft 40 and the second shaft 50 are concentric and rotate via bearing systems 38 about the centerline 500. Turbine blades can reach up to 100 meters (328 feet) in length, and will continue to increase in size as the demand for renewable energy grows and as wind turbines are deployed offshore. In a further example, the densities differ by at least 6%, and in one example differ by 6%-10%. Similar control is performed during the blade repair process, which extends the life of the system and increases its economic efficiency [3,4]. 5. Each wind turbine blade takes two days and 100 employees to manufacture. Located in Le Creusot, famous for 200 years as a centre of metallurgy and engineering, Turbine Casting has developed a high level of competence based on the historically well-known lost-wax process. & Terms of Use. 2, taken along line 5-5. 2 or 80-2 and/or 81 of FIG. The use of “first”, “second”, and the like in the following claims is for differentiation within the claim only and does not necessarily indicate relative or absolute importance or temporal order. … A new initiative to recycle aging wind turbine blades includes the use of recycled glass fiber composites for cement manufacturing in a process that replaces raw material, saves energy and reduces CO2 output. Such alignments may be within 15°, more particularly 10° or 5°. This traditional process is time-consuming and expensive and does not allow for part designs with complex geometries.
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