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Standard

Performance Standard for Tube Support Loop-Cushioned Clamp

2018-08-26
WIP
AS1553B
This standard covers heat and corrosion resistant steel loop clamps with a woven steel wire cushion that is attached to the clamp by spot welding and is intended for use in applications up to 1200 degrees F (649 degrees C).

To establish the performance requirements for loop clamps with a woven steel wire cushion.

Standard

Isolation and Corrosion Protection of Dissimilar Materials, Carbon Composite Structure Repair

2018-08-24
WIP
ARP4118B
This SAE Aerospace Recommended Practice (ARP) provides methods and guidelines for isolating dissimilar repair patch materials from carbon composite structure during a repair operation. These procedures are applicable to any repair procedure for carbon fiber reinforced plastic parts in which the repair patch is a metallic alloy that can form a galvanic cell with carbon in the presence of moisture or other electrolytes. The principal patch materials addressed are aluminum, titanium, and stainless steel. The procedures are primarily concerned with bolted repairs that introduce the most severe, potential corrosion problem but bonded repairs are also considered. The procedures are also applicable to repairs involving reinstallation of metallic inserts into a carbon fiber reinforced plastic part. Fiberglass and aramid fiber reinforced plastics do not have galvanic reactions with other materials, and the procedures outlined herein are, therefore, not essential with these materials.
Standard

Techniques for Suspect/Counterfeit EEE Parts Detection by Design Recovery Test Methods

2018-08-24
WIP
AS6171/11A
This method outlines the requirements, capabilities, and limitations associated with the application of Design Recovery for the detection of counterfeit electronic parts including: Operator training; Sample preparation; Imaging techniques; Data interpretation; Design/functional matching; Equipment maintenance and; Reporting of data. The method is primarily aimed at analyses performed by circuit delayering and imaging with a scanning electron microscope or optical microscope; however, many of the concepts are applicable to other microscope and probing techniques to recover design data. The method is not intended for the purpose of manufacturing copies of a device, but rather to compare images or recover the design for determination of authenticity. If AS6171/11 is invoked in the contract, the base document, AS6171 General Requirements shall also apply. SAE Counterfeit Defect Coverage Tool
Standard

Metal Clad Fibers for Electrical Shielding and Harness Overbraid

2018-08-23
CURRENT
AIR5464A
Over the past two and one-half decades several metal clad fibers and fabrics have been developed to provide aerospace vehicle designers with a conductive, lighter weight alternative to coated copper, coated stainless steel and steel wire used for cable and wire shielding and harness overbraids on electrical cables. Several of these candidates have been unable to provide the strength or thermal stability necessary for the aerospace environment. However, several polymer-based products have shown remarkable resistance to the rigorous environment of aerospace vehicles. Concurrent with these fiber developments, there have been changes in the structures of aerospace vehicles involving greater use of nonmetallic outer surfaces. This has resulted in a need for increased shielding of electrical cables which adds substantial weight to the vehicle. Thus, a lighter weight shielding material has become more critical to meet the performance requirements of the vehicle.
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