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Viewing 1 to 30 of 2848
2017-10-20
WIP Standard
AS4108C
This specification defines the requirements for A286 cres T-bolts and eye bolts, with room temperature tensile strength of a minimum of 160000 psi, for use with clamps and V-band couplings at 1000 °F maximum ambient temperature.
2017-10-19
WIP Standard
TS145AR-5
No Scope available.
CURRENT
2017-10-18
Standard
AS4877G
This procurement specification covers bolts and screws made from a corrosion and heat resistant, age hardenable nickel base alloy of the type identified under the Unified Numbering System as UNS N07718.
2017-10-13
WIP Standard
AS7516A
SCOPE IS UNAVAILABLE.
2017-10-08
Journal Article
2017-01-2427
Suresh Kumar Kandreegula, Rahul Jain, Shivdayal Prasad, Rahul Machiya, Avinash Mandyam
Abstract Automotive vehicle includes various systems like engine, transmission, exhaust, air intake, cooling and many more systems. No doubt the performance of individual system depends upon their core design. But for performance, the system needs to be fastened properly. In automotive, most of the joints used fasteners which helps in serviceability of the components. There are more than thousands of fasteners used in the vehicle. At various locations, we found issue of bolt loosening and because of this design intent performance has not met by the system. During product development of ECS (Engine cooling system), various issues reported to loosening the bolt. The pre-mature failure of bolt loosening, increases the interest in young engineers for understanding the behavior of fastener in vehicle running conditions. This paper focuses on the design of wedge shape of washer to avoid bolt loosening.
CURRENT
2017-10-03
Standard
J1965_201710
This SAE Recommended Practice applies to fasteners/fixing nuts as specified in SAE J694 and SAE J1835 used for disc wheels and demountable rim attachment respectively. Only the test methods necessary to ensure proper wheel or rim assembly are specified. Fasteners for less common and special applications are not included.
2017-09-28
Event
CURRENT
2017-09-27
Standard
AS5179C
Propose revision to add conductive high purity aluminum coating per MIL-DTL-83488 for aluminum alloy fittings. The W code aluminum parts with new finish will be distinguished by new finish code V at the end of part number.
2017-09-26
WIP Standard
ARP4402A
This SAE Aerospace Recommended Practice establishes the requirements and procedures for eddy current inspection of open fastener holes in aluminum aircraft structures.
CURRENT
2017-09-25
Standard
AS100026B
No scope available
2017-09-19
Technical Paper
2017-01-2097
Josh Elrod
Abstract Automated collar and nut installation requires complex hardware on the wet side of the spar or wing panel. Wet side automatic tool changers are becoming common but an operator is often required to connect electrical, pneumatic and fastener feed system components. This is unacceptable in a lights-out cell, and any fully automatic solution must be reliable while satisfying demanding design requirements. Figure 1 Wet side anvil for nut installation. The 737 Spar Assembly Line (SAL) is a new lights-out machine cell at the Boeing factory in Renton, Washington. The SAL machines are equipped with a unique fully automatic tool changer (ATC). The wet side ATC interface is designed to automatically connect conventional as well as more unique services such as fastener feed. The fastener feed ATC module, called the “spinner,” rotates with the machine’s wet side rotary axis (C axis). It consists of a stack of rotors that rotate inside of a stationary annulus.
2017-09-19
Technical Paper
2017-01-2094
Tyler Everhart
Abstract Electroimpact, in collaboration with Boeing, has developed an advanced robotic assembly cell, dubbed “The Quadbots.” Using Electroimpact’s patented Accurate Robot technology and multi-function end effector (MFEE), each robot can drill, countersink, inspect hole quality, apply sealant, and insert fasteners into the part. The cell consists of 4 identical machines simultaneously working on a single section of the Boeing 787 fuselage, two on the left, and two on the right. These machines employ “collision avoidance” a new feature in their software to help them work more synchronously. The collision avoidance software uses positional feedback from external safety rated encoders mounted to the motors on the robot. From this feedback, safe spaces, in the form of virtual boundaries can be created. Such that a robot will stop and wait if the adjacent robot is in, or going to move into its programmed work envelope.
2017-09-19
Technical Paper
2017-01-2098
Didier Friot, Loic Meiffre, Christophe Vandaele
Abstract With air traffic demand constantly increasing and several years of aircraft production in their backlog, major aircraft manufacturers are now shifting their focus toward improving assembly process efficiency. One of the most promising solutions, known as “One Side Assembly”, aims to perform the whole assembly sequence from one side of the structure (drilling, temporary fastener installation and removal, blind fastener installation, assembly control) and with a high level of integrated automation. A one-sided, or blind fastener that is capable of matching the performance of current two-sided structural fasteners while meeting volume and cost objectives can be a major driver for assembly process efficiency improvements. To achieve a blind fastener assembly capable of both fully automated and manual installations while providing robust cycle times and assembly cost reductions is full of challenges.
CURRENT
2017-09-15
Standard
AS4674B
SCOPE IS UNAVAILABLE.
2017-09-12
WIP Standard
J174
This test procedure is intended to provide a quality control method for checking torque-tension characteristics of non-prevailing torque type threaded steel fasteners 1/4 through 1 in nominal diameters. Realistically, torque-tension relationships for specific individual fastener assembly joints will vary due to the different joint parameters. Tests using actual joint components will be required to determine accurate torque-tension values for those conditions. For the metric version, see SAE J174M.
CURRENT
2017-09-12
Standard
AS7513
Male ferrule, swaged, for procurement specification AS6335 and will supersede AS5833.
CURRENT
2017-09-12
Standard
AS7516
SCOPE IS UNAVAILABLE.
2017-09-11
WIP Standard
AS7454C

This procurement specification covers aircraft quality bolts and screws made from a low alloy, heat resistant steel of the type identified under the Unified Numbering System as UNS K14675.

AS7454 - 135,000 psi ultimate tensile strength at room temperature.

AS7454-1 - 135,000 psi ultimate tensile strength at room temperature, nickel-cadmium plated.

Viewing 1 to 30 of 2848

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