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Viewing 241 to 270 of 20280
2015-09-27
WIP Standard
ARP982E
Primarily to provide recommendations concerning minimizing stress corrosion cracking in wrought titanium alloy products.
2015-09-23
Article
Infor Product Lifecycle Management (PLM) Accelerate, powered by Aras, is a new PLM solution designed for automotive, industrial manufacturing, high-tech, and aerospace and defense customers.
2015-09-23
WIP Standard
AMS4392A
This specification covers a magnesium alloy in the form of welding wire.
2015-09-23
WIP Standard
AMS4324A
This specification covers an aluminum alloy in the form of extruded bars, rods, and profiles (shapes) produced with a cross sectional area of 24 in2 (155 cm2) maximum and a circumscribing circle (see 8.3) diameter (circle size) of 10.5 inches (267 mm) maximum (see 8.6)
2015-09-23
WIP Standard
J747
This SAE Standard applies to hydraulic directional control valves as applied to self-propelled work machines referenced in SAE J1116. It describes a laboratory test procedure for evaluating: a.) Flow versus pressure drop, b.) Leakage rate, c.) Operating effort, d.) Metering characteristics versus spool travel, pilot pressure, or electrical current, e.) Relief valve characteristics. This document applies to single and multiple section hydraulic directional control valves. This document illustrates axial, manually operated valves although the test procedure is applicable to other input forms such as rotary actuation, electric current, hydraulic or pneumatic pressure.
2015-09-22
WIP Standard
AMS2484C
This specification covers the requirements for an inorganic blackening solution for steel, applied at room temperature.
2015-09-22
WIP Standard
AMS3411E
This specification covers a silver-brazing flux in paste form.
2015-09-22
WIP Standard
AMS2416M
This specification covers the engineering requirements for an electrodeposit of cadmium into an electrodeposit of nickel on carbon, low-alloy, and corrosion-resistant steels.
2015-09-22
WIP Standard
AMS3410K
This specification covers a silver-brazing flux in the form of a paste which contains not more than 35% water by weight.
2015-09-22
WIP Standard
AMS2486F
This specification establishes the requirements for a chemical conversion coating on titanium alloys.
2015-09-22
WIP Standard
AMS2418J
This specification covers the requirements for electrodeposited copper.
2015-09-22
WIP Standard
AMS2175B
This specification establishes nondestructive testing methods, sampling frequency, and acceptance criteria for the inspection of metal castings. This specification has been used typically for structural castings, but usage is not limited to such applications.
2015-09-22
WIP Standard
AMS2700F
This specification covers the requirements for a process to assure removal of free iron or other less noble contaminants from the surfaces of corrosion resistant steel parts.
2015-09-21
Article
Aras Flow features a new Windows 8 mobile tablet app that helps companies accelerate product realization with visual collaboration.
2015-09-21
Standard
AMS4077H
This specification covers an aluminum alloy in the form of sheet and plate from 0.010 to 0.499 inch (0.25 to 12.67 mm), inclusive, in thickness. (See 8.4).
2015-09-16
Standard
AMS5034B
This specification covers a low-alloy steel in the form of welding wire.
2015-09-16
Standard
AMS6460G
This specification covers a low-alloy steel in the form of welding wire.
2015-09-16
Collection
This collection of technical papers covers advanced portable semi-automated drilling and fastening systems and portable crawler/flex track systems; assembly methodologies and advanced assembly fixtures and tooling; composites assembly and fastening; composte/heavy metal drilling and assembly; large component assembly, sub-assembly, major section join and final assembly; robotic applications in drilling, fastening and assembly; and advancements in drill bit, temporary and permanent fastening technology.
2015-09-16
Collection
This collection of technical papers addresses advanced low cost aircraft structures; advanced robotics applications; aircraft coatings, polymers and sealant technologies; automated composites manufacturing; composites fabrications and joining; lean manufacturing, sig sigma & supply chain; metals, fabrication and processing; dimensional management and metrology systems; product design and manufacturing integration; and trimming, drilling & assembly of composites structures.
2015-09-15
WIP Standard
AMS6276L
This specification covers a premium aircraft-quality, low-alloy steel in the form of bars, forgings, mechanical tubing, and forging stock.
2015-09-15
WIP Standard
AMS6277H
This specification covers a premium aircraft-quality, low-alloy steel in the form of bars, forgings, mechanical tubing, and forging stock.
2015-09-15
Technical Paper
2015-01-2396
Sergey Lupuleac, Margarita Petukhova, Mariia Stefanova, Yulia Shinder, Evgeniy Victorov, Alexander Smirnov, Elodie Bonhomme
Abstract The paper is devoted to further extension and development of numerical approach aimed at simulation of riveting process during aircraft assembly (see [1,2,3,4]). Previous research has shown that developed methodology provides reliable results if the rigid motion of bodies being assembled is forbidden. However, some small parts in the airframe assemblies are not supported prior to the junction and can freely move as a rigid body. This fact introduces additional difficulties when solving corresponding contact problem. The paper is devoted to description and analysis of two different modeling approaches that allow taking unsupported parts into consideration when simulating airframe assembly process.
2015-09-15
Technical Paper
2015-01-2429
Rickard Olsen, Kerstin Johansen, Magnus Engstrom
Abstract The increased diffusion of cooperation between humans and robotics in manufacturing systems is one of the next things to implement within robotics. Since the computer power gets more and more powerful, the possibilities increase to achieve safer working environment, due to that all safety signals demands fast management of data. This could lead to a possibility to work closer and more direct with a robot, using the robot as a third hand. Within an EU FW7 funded project called LOCOMACHs (Low Cost Manufacturing and Assembly of Composite and Hybrid Structures) there are one study focusing on how to support a future higher TRL-leveled HMI cell (Human Machine Interaction) in an assembly task. The main objective in this paper is to present how different external safety systems could support the whole HMI assembly cell to work properly in an industrial context.
2015-09-15
Technical Paper
2015-01-2488
Derek L. Mickelson
Abstract In the aircraft design process there are the occasional bolted joints with opposing surfaces that are not parallel to each other. This can necessitate manufacturing to machine a spot face into the structural surfaces for the bolt head and nut to seat on. Typically this process is done manually by two workers with all process verification being done visually. Additionally, the nature of airplane structure often requires one worker to be inside a confined space to monitor the process. With this in mind, a tool was requested to reduce the number of workers required, remove workers from confined spaces and ensure a robust method for process validation. The critical technology that would have to be developed was a device that could fix itself into an existing hole, measure the surface of which the hole exited and then machine a spot face into that surface to a specific calculated depth.
2015-09-15
Technical Paper
2015-01-2495
N.D. Jayaweera, L.U. Subasinghe, H.G.A.R. Gajanayaka
Abstract Modern aerospace industry is continuously seeking new technologies due to potential increase in demand for new aircrafts which are to be produced on a single production line while reducing model changeover time and improving quality of the assembly process. In mass volume production, this can be achieved by fixing a large number of similar components using special-purpose jigs and fixtures. This type of jigs and fixtures can be largely found in Aerospace industry. In low volume production, improvement of re-configurable fixturing systems becomes a favourable way to reduce the cost of production per unit. A re-configurable fixturing system consists of standard components that can be used to satisfy different fixturing requirements. These fixtures are reusable and this enhances their flexibility and reduces the time and cost of development. It also offers the benefit of eliminating the need for dedicated tooling, dedicated fixturing, associated storage and floor space.
2015-09-15
Technical Paper
2015-01-2496
Lucy Agyepong, Marcus Rafla, David Tomlinson, Karl-Otto Strömberg, Alan Howarth
Abstract There is the need to strive towards more advanced aircraft with the use of materials such as composites, and a desire to improve efficiency by achieving and maintaining laminar flow over a large proportion of the aircraft wing. Due to the high tolerances required to achieve laminar flow, the manufacturing processes and tooling will have to be revaluated to enable successful manufacture in a production environment. A major influence in achieving the key characteristics and tolerances is the assembly fixture. This paper details the design and manufacture of a carbon fibre based assembly fixture, required for a one-off build of an innovative leading edge wing concept. The fixture has been designed and optimised in order to make it adaptable, reconfigurable, and suitable for lifting as well as being thermally stable whilst maintaining laminar flow tolerances.
2015-09-15
Technical Paper
2015-01-2510
Ryan Haldimann
Abstract Accurate measurement of countersinks in curved parts has always been a challenge. The countersink reference is defined relative to the panel surface which includes some degree of curvature. This curvature thus makes accurate measurements very difficult using both contact and 2D non-contact measurements. By utilizing structured light 3D vision technologies, the ability to very accurately measure a countersink to small tolerances can be achieved. By knowing the pose of the camera and projector, triangulation can be used to calculate the distance to thousands of points on the panel and countersink surface. The plane of the panel is then calculated using Random Sample Consensus (RANSAC) method from the dataset of points which can be adjusted to account for panel curvatures. The countersink is then found using a similar RANSAC method.
Viewing 241 to 270 of 20280

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