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Viewing 1 to 30 of 9956
Training / Education
2014-11-06
Welding is one of the most important and widely used of the joining processes, providing distinct advantages in mechanical performance, ease of implementation, cost and adaptability. This seminar will provide engineers with applicable knowledge related to metallurgy, stress analysis and welding processes which will enable them to consider design, analysis, implementation and inspection of welds for their respective products. The course will cover the fusion operation of welding involving casting, heat treatment and metallurgical processes as well as additional complexities such as residual stress and distortion, introduction of various defects and sensitivity of materials, considerations related to static strength, fatigue behavior and resistance to corrosion. The primary focus of the seminar will be arc welds, but there will also be discussion of other welding processes important to the mobility industry including resistance spot, laser and friction stir. The seminar will make extensive use of case studies and will discuss appropriate codes and standards.
Event
2014-09-24
Metrology and automation control system developments have progressed significantly in recent years. This session will present and discuss the application and potential applications of these systems in aerospace manufacture. It features system developments in metrology for machine control, accuracy enhancement and system performance evaluation to meet the demands of new aircraft programs.
Event
2014-09-23
Advancements in the production of metallic structure continue to be important to the aerospace and commercial aviation industries. This session features improved materials, processes, and joining methods for metallic components to meet the challenges put forth by demanding end product requirements.
Event
2014-09-23
Advancements in the production of metallic structure continue to be important to the aerospace and commercial aviation industries. This session features improved materials, processes, and joining methods for metallic components to meet the challenges put forth by demanding end product requirements.
Event
2014-09-23
Metrology and automation control system developments have progressed significantly in recent years. This session will present and discuss the application and potential applications of these systems in aerospace manufacture. It features system developments in metrology for machine control, accuracy enhancement and system performance evaluation to meet the demands of new aircraft programs.
Technical Paper
2014-09-16
Joshua Norman, Cesar Moreno, Zhiyu Wang, James Mann, Christopher Saldana
Vibration/modulation-assisted machining processes offer potential for enabling more efficient processing of aerospace alloys. While benefits of these processes have been well documented, sources for the improvements are not well understood. This study explores the nature of energy dissipation during conventional and modulation-assisted machining by characterizing effects of controllable process parameters on chip formation in aerospace alloys. Simultaneous force and tool position measurements are used to show that the processing response in modulation-assisted machining can be described by empirically derived process models. These models accurately predict plastic dissipation over a range of modulation conditions and configurations, including in cases where energy expenditure decreases with the application of modulation. These observations suggest that the underlying plastic response in modulation-assisted machining at low frequency is analogous to that of conventional machining with a time-varying component.
Technical Paper
2014-09-16
Samuel Baha II
Hybrid (bolted/bonded) joining is becoming one of the innovative joining processes for light weight structures in the transport industry, especially in the aerospace industry where weight reduction and high joining requirements are permanent challenges. Combining the adhesive bonding with the mechanical joining -riveting for instance- can lead to an enhancement of the properties of the joint compared to the wide established riveting, as a result of a synergistic load bearing interaction between the fastener and the adhesive bondline. The influence of the rivet installation process on a hybrid joint regarding the joint stress state, the change of the bondline thickness as well as its effects on the joint performance and load transfer are some of the factors that drive the users to a better understanding of the hybrid joining process. This paper deals therefore on one hand with the numerical simulation of the rivet installation process in an adhesively bonded joint to understand the phenomena occurring during the installation process and on the other hand with the investigation of the load transfer depending on the joint parameters.
Technical Paper
2014-09-16
George Nicholas Bullen
Constant swirls of innovative ideas are starting to push composites and hybrid metal-composite components for use in an ever expanding circle of products. Recent discoveries of Graphene/Au composites have invigorated innovations for its application to aerospace and space products. Attributes such as a low CTE, stiffness, and light weight attract other manufacturers of smaller products to use composites for enhanced performance and durability. The uses and economics of composites is an enormously broad subject. Examples of composite materials will be described in this presentation and paper to provide samples of applications selected for their far reaching potential to enhance product performance. Examples will also be presented to explain the application of carbon based composites where the product performance or application would not be possible without special materials. This presentation and paper will also describe emerging materials such as graphene and some of its applications to enhance the performance of current technologies It is easy become enamored with the composite big parts built for trains, planes, automobiles, ships, and wind turbine blades.
Technical Paper
2014-09-16
Joseph R. Malcomb
Automated countersink measurement methods which require contact with the workpiece are susceptible to a loss of accuracy due to cutting debris and lube build-up. This paper demonstrates a non-contact method for countersink diameter measurement on CFRP which eliminates the need for periodic cleaning. Holes are scanned using a laser profilometer. Coordinates for points along the countersink edge are processed with a unique filtering algorithm providing a highly repeatable estimate for major and minor diameter.
Standard
2014-07-22
This specification covers an aluminum alloy in the form of plate. This plate has been used typically for parts requiring a high level of mechanical properties and resistance to exfoliation corrosion and moderate resistance to stress-corrosion cracking, but usage is not limited to such applications.
WIP Standard
2014-07-21
General Agreement Ballot will simplify the decarburization requirements of flat rolled products to that of the bar products and will eliminate the step procedure.
WIP Standard
2014-07-18
This specification covers quality assurance sampling and testing procedures used to determine conformance to applicable specification requirements of carbon and low-alloy steel forgings.
Standard
2014-07-17
This specification covers an aircraft-quality, low-alloy steel in the form of bars, forgings, mechanical tubing, and forging stock.
Standard
2014-07-17
This specification covers an aircraft-quality, low-alloy steel in the form of bars, forgings, mechanical tubing, and forging stock.
Standard
2014-07-17
This specification covers an aircraft-quality, low-alloy steel in the form of seamless tubing. This tubing has been used typically for thin wall-thickness sections where minimum tensile strength up to 160 ksi (1103 MPa) is required and where parts may be welded during fabrication, but usage is not limited to such applications.
WIP Standard
2014-07-15
Form: This specification covers an aluminum alloy in the form of plate products from 1.000 to 6.000 inches (152.40 mm) in thickness. Application: 7065-T7451 may be used in aerospace applications requiring high strength and fracture toughness, high resistance to stress-corrosion cracking and good resistance to exfoliation corrosion, but usage is not limited to such applications.
WIP Standard
2014-07-15
Form: This specification covers an aluminum alloy in the form of plate products from from 1.000 to 6.000 inches (152.40 mm) in thickness. Application: 7065-T7651 may be used in aerospace applications requiring high strength and good fracture toughness, good resistance to stress-corrosion cracking and to exfoliation corrosion, but usage is not limited to such applications.
Standard
2014-07-15
This specification covers aluminum in the form of sheet and plate.
Standard
2014-07-11
This specification covers an aluminum alloy in the form of plate. This plate has been used typically for structural applications requiring material with high strength and resistance to exfoliation-corrosion, moderate fatigue strength, and high fracture-toughness, but usage is not limited to such applications.
Standard
2014-07-10
This specification covers a corrosion and heat-resistant steel in the form of bars, wire, forgings, mechanical tubing, flash welded rings, and stock for forging or flash welded rings.
WIP Standard
2014-06-25
This specification covers an aluminum alloy in the form of seamless, drawn tubing.
Standard
2014-06-12
This specification covers a corrosion-resistant steel in the form of sheet and strip. These products have been used typically for parts requiring strength and moderate forming or bending, but usage is not limited to such applications. Mechanical properties specified herein are obtained by cold working (strain hardening) and not by heat treatment. Therefore, the cold-worked product should not be heated to a temperature which adversely affects the mechanical properties or corrosion resistance before, during, or after fabrication.
Viewing 1 to 30 of 9956

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