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Viewing 1 to 30 of 2745
2016-10-05
Event
This session includes topics covering the development and introduction of temporary and permanent fasteners used in production assembly and / or final installation. Research into new and enhanced fastener solutions optimizing automated and manual installation is presented along with innovative solutions to current production fastening issues
2016-10-05
Event
This sessions covers fully automated and Semi-Automated fastening Sub-systems and engineering/designing for Automated Fastening.
2016-10-04
Event
This session is dedicated to advancements in drilling and fastening applications through the utilization of robots for positioning drilling and/or fastening end effectors to airframe structure
2016-10-04
Event
This session is dedicated to advancements in drilling and fastening applications through the utilization of robots for positioning drilling and/or fastening end effectors to airframe structure
2016-10-04
Event
This session is dedicated to advancements in fastening applications including riveting process & fastening automation. Topics Include: Fully Automated Fastening Sub-systems Semi-Automated Fastening Sub-systems Engineering and Designing for Automated Fastening New and Enhanced Fastener
2016-10-04
Event
Topics Include covered in this session include Fully Automated Fastening Sub-systems, Semi-Automated Fastening Sub-systems, Engineering and Design for Automated Fastening.
2016-09-27
Technical Paper
2016-01-2079
Alexander Janssen, Thorsten Dillhoefer
The industry wide requirement of new highly flexible automated fastening systems in aircraft production has created the need for developing new fastening systems. This paper will focus on the development of the Frame Riveting Assembly Cell (FRAC) by BROETJE-Automation to meet this need. The new FRAC machine configuration is built for automated drilling and fastening of different aircraft type parts. It is highly flexible with a high speed positioning system mounted multifunction end effector. System travel is limited only by installed track length. The FRAC integrates well with conventional and reconfigurable automated fastening work holding tools.
2016-09-27
Journal Article
2016-01-2080
Carter L. Boad, Kevin Brandenstein
The newest generation of automated fastening machines require a feed system that is smaller, more flexible, and faster than any currently available. The feed system must be compact enough to fit on a robot base, yet have a capacity large enough to support unmanned production for hours. A large variety of fasteners must be supported and the entire system must be reloaded or reconfigured in minutes to match the next work piece being assembled by the machine. When requested by the part program, the correct fastener must be released directly and immediately into the feed tube to minimize cycle time. This paper describes a new “plate cartridge” feed system developed to meet these needs.
2016-09-27
Journal Article
2016-01-2081
Rodrigo Pinheiro, Robert Gurrola, Sead Dzebo
Abstract The installation of common threaded aerospace fasteners by the application of a torque to a nut or collar is made possible by an internal wrenching element or recess feature adapted to the threaded end of a pin, which accepts a mating anti-rotation key designed to partially balance the applied torque. In applications such as the mechanical joining of composite structures accomplished by wet clearance fit installations of permanent fasteners, high nut or collar seating torques not adequately opposed by frictional resistance at the contact surfaces of the fastener and joint members effectively shift a greater proportion of the torque reaction requirement onto the recess and mating anti-rotation key which in turn can experience high torsional stresses exceeding their design capability and result in frequent service failures.
2016-09-27
Technical Paper
2016-01-2083
Steven P. Smith
Abstract This paper traces the development of a temporary blind fastener in the aircraft industry. These are used with automated drilling machines as part of an integrated assembly process where one-way assembly is inappropriate. Traditional blind temporary fasteners have a high protrusion (stand-off) on the side they are installed from, effectively preventing automated drilling. No suitable fastener was available on the market and existing suppliers were uninterested in development at the time. A set of requirements were created out of the need to improve efficiency of A380 wing assembly. However focus changed as the A350XWB programme demanded such a fastener. Testing, development and Stress approval are described leading to full deployment. Finally the paper looks at the additional factors which are required to successfully introduce a new standard of temporary fastening process.
2016-09-27
Technical Paper
2016-01-2084
Curtis Hayes
Abstract Successfully riveting aerospace fatigue-rated structure (for instance, wing panels) requires achieving rivet interference between a minimum and a maximum value in a number of locations along the shank of the rivet. In unbalanced structure, where the skin is much thicker than the stringer, this can be particularly challenging, as achieving minimum interference at the exit of the skin (D2) can often be a problem without exceeding the maximum interference at the exit of the stringer (D4). Softer base materials and harder, higher-strength rivets can compound the problem, while standard manufacturing variations in hardness of part and rivet materials can cause repeatability issues in the process. This paper presents a solution that has been successfully implemented on a production commercial aircraft.
2016-09-27
Journal Article
2016-01-2085
Kyle Pritz, Brent Etzel, Zheng Wei
The automation cycle time of wing assembly can be shortened by the automated installation of single-sided temporary fasteners to provide temporary part clamping and doweling during panel drilling. Feeding these fasteners poses problems due to their complexity in design and overall heavy weight. In the past, Electroimpact has remotely fed these fasteners by blowing them through pneumatic tubing. This technique has resulted in occasional damage to fasteners during delivery and a complex feed system that requires frequent maintenance. Due to these issues, Electroimpact has developed a new fully automated single-sided temporary fastening system for installation of the LISI Clampberry fasteners in wing panels for the C919 wing factory in Yanliang, China. The feed system stores fasteners in gravity-fed cartridges on the end effector near the point of installation.
2016-09-27
Technical Paper
2016-01-2089
Jose Guerra cEng, Miguel Angel Castillo
Abstract Aernnova experience on automatic drilling operations started in 1,999. The company signed a new contract with Embraer, to design, manufacture and assembly several structures of the model 170. It was big news for the company. But after that minute of pride, manufacturing engineering people of the company started to think about the process to assemble those big panels of the Horizontal Stabilizer, Vertical Stabilizer and Rear Fuselages in the best Quality and Cost. There were a lot of rows of rivets to install. Some ideas arisen, but the final decision was to forget the available processes at that time and think about to automate the drilling, countersink and riveting of the stringers, doublers and window frames to the panels. There were a lot of doubts, figures to do and obstacles, but the company took the decision of going ahead with that process. That step changed the state of the art at that time in the company.
2016-09-27
Technical Paper
2016-01-2098
Christophe Vandaele, Didier Friot, Simon Marry, Etienne Gueydon
Abstract With more than 10 000 aircrafts in their order backlog Aircraft manufacturers focus on automated assembly is of critical importance for the future of efficient production assembly. Moreover to obtain maximum benefit from automation, it is necessary to achieve not only an automated assembly cell, but also a real breakthrough in fastener technology. The optimum solution, known as “One Side Assembly”, performs the whole assembly sequence from one side of the structure using an accurate robot arm equipped with a multifunction end effector and high performance fasteners. This configuration provides an efficient and flexible automated installation process, superior to current solutions which are typically, large scale, capital intensive systems, which still require operators to complete or control the fastener installation. The search for a technological breakthrough in this domain has been targeted for more than 15 years by many aircraft manufacturers.
2016-09-27
Technical Paper
2016-01-2128
Henry Guo, Farid Ahdad, DeDong Xie
Abstract In this work we have proposed an interesting clamping solution of V-band which has an important industrial impact by reducing the cost and assembly process as well compare to the traditional V-band. The design what we are focusing for is applied for all size of turbochargers which helps to connect the hot components such as manifold and turbine housing. The cost for V-band is mainly from T-bolt. It is made from special stainless steel which represents 50% of the total cost. In this work it is proposed a new V-band joint by changing bolt clamping status from tension to compression. From tension to compression we change the bolt material from high cost steel to low cost steel. The new total cost is reduced by 40%. The prototype is made and performed in static tests including anti-rotating torque test and salt spray test. The new joint meets the design requirements at static condition. Further work will focus on the dynamic qualification and at high temperature as well.
2016-09-27
Technical Paper
2016-01-2145
Ryan Haldimann
Abstract Inspection of fasteners prior to installation is critical to the quality of aerospace parts. Fasteners must be inspected for length/grip and diameter at a minimum. Inspecting the fasteners mechanically just prior to insertion can cause additional cycle time loss if inspection cannot be performed at the same time as other operations. To decrease fastener inspection times and to ensure fastener cartridges contain the expected fastener a system was devised to measure the fastener as it travels down the fastener feed tube. This process could be adapted to inspection of fasteners being fed to the process head of a running machine eliminating the mechanical inspection requirement and thus decreasing cycle time.
2016-09-26
WIP Standard
AS3411C
Scope is unavailable.
2016-09-26
WIP Standard
AS7460C
This procurement specification covers aircraft quality bolts and screws made of 6.0Al-4.0V titanium alloy and of 160 ksi tensile strength at room temperature.
2016-09-26
WIP Standard
MA3340C
SCOPE IS UNAVAILABLE.
2016-09-13
Event
Viewing 1 to 30 of 2745

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