Criteria

Text:
Topic:
Display:

Results

Viewing 1 to 30 of 2513
Training / Education
2014-12-15
This seminar introduces participants to all aspects of threaded fasteners including nomenclature, geometric considerations, metallurgy, material properties, applied stresses, and considerations for fatigue, corrosion, brittle fracture and temperature. Methods are developed for the analysis and design of bolted joints under axial and shear loads. Other topics include assembly practice and methods to control preload.
Standard
2014-09-16
This Aerospace Standard establishes the details of the maximum and minimum thread profile and tolerance classes for the metric 60° screw threads recommended for use in the aerospace industry for metric module bolts and nuts.
Technical Paper
2014-09-16
Jamie Skovron, Laine Mears, Durul Ulutan, Duane Detwiler, Daniel Paolini, Boris Baeumler, Laurence Claus
Abstract A state of the art proprietary method for aluminum-to-aluminum joining in the automotive industry is Resistance Spot Welding. However, with spot welding (1) structural performance of the joint may be degraded through heat-affected zones created by the high temperature thermal joining process, (2) achieving the double-sided access necessary for the spot welding electrodes may limit design flexibility, and (3) variability with welds leads to production inconsistencies. Self-piercing rivets have been used before; however they require different rivet/die combinations depending on the material being joined, which adds to process complexity. In recent years the introductions of screw products that combine the technologies of friction drilling and thread forming have entered the market. These types of screw products do not have these access limitations as through-part connections are formed by one-sided access using a thermo-mechanical flow screwdriving process with minimal heat. The friction drilling, thread forming process, hereto referred to as “FDS” is an automated continuous process that allows multi-material joining by utilizing a screw as both the tool and the fastener.
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.
Event
2014-09-09
WIP Standard
2014-09-09
This SAE Standard covers the dimensional and general specifications, including performance requirements, for carbon steel self-drilling tapping screws suitable for use in general applications. It is the objective of this document to insure that carbon steel self-drilling tapping screws, by meeting the mechanical and performance requirements specified, shall drill a hole and form or cut mating threads in materials into which they are driven without deforming their own thread and without breaking during assembly. Appendix A is included to provide a recommended technique for measuring the case depth on the screws.
Standard
2014-08-26
Scope is unavailable.
WIP Standard
2014-08-22
Scope is unavailable.
WIP Standard
2014-08-22
This standard covers all-metal, self-locking, prevailing torque nuts made of corrosion resistant steel.
Standard
2014-08-20
This document covers all metal, self-locking wrenching nuts, plate nuts, shank nuts, and gang channel nuts made from a corrosion and heat resistant steel of the type identified under the Unified Numbering System as UNS S66286 and of 160 ksi tensile strength at room temperature, with maximum test temperature of parts at 1200 °F.
Standard
2014-08-20
This procurement specification covers aircraft quality bolts and screws made from a low alloy steel of the type identified under the Unified Numbering System as UNS G87400, and of a series of room temperature tensile strengths ranging from 125 000 to 185 000 psi.
Standard
2014-08-20
Scope is unavailable.
Viewing 1 to 30 of 2513

Filter

  • Range:
    to:
  • Year: