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Technical Paper

Noise Absorption Behavior of Aluminum Honeycomb Composite

2020-09-25
2020-28-0453
Natural fibers are one of the major ways to improve environmental pollution. In this study experimental investigation and simulation of honeycomb filled with cotton fabric, wood dust and polyurethane were carried out. This study determines the potential use of cotton fabric, wood dust as good sound absorbers. Automotive industries are looking forward to materials that have good acoustic properties, lightweight, strong and economical. This study provides a better understanding of sound-absorbing material with other mechanical properties. With simulation and experimental results, validation of works provides a wider industrial application for the interior of automotive industries including marine, aviation, railway industry and many more.
Standard

Unidirectional Carbon Fiber Tape Epoxy Repair Prepreg, Vacuum Curing Part 3 - Purchasing Specification for Unidirectional Carbon Fiber Tape Epoxy Repair Prepreg

2020-09-04
WIP
AMS6885/3
This Purchasing Specification, AMS6885/3, specifies the batch release and delivery requirements for unidirectional carbon fiber tape epoxy prepreg used for repair. This specification is applicable only when the unidirectional carbon fiber tape epoxy prepreg is used as part of the repair system defined in AMS6885 and AMS6885/1. This specification also defines the procedure and requirements for storage life extension of materials purchased against this specification. It is only applicable for materials qualified against AMS6885 (refer to PRI QPL AMS6885) and shall be carried out within the responsibility of the purchaser and under control of its Quality organisation
Standard

Unidirectional Carbon Fiber Tape Epoxy Repair Prepreg, Vacuum Curing Part 4 - Purchasing Specification for Film Adhesive

2020-09-04
WIP
AMS6885/4
This Purchasing Specification, AMS6885/4, specifies the batch release and delivery requirements for film adhesive used for repair. This specification is applicable only when the film adhesive is used as part of the repair system defined in AMS6885 and AMS6885/1. This specification also defines the procedure and requirements for storage life extension of materials purchased against this specification. It is only applicable for materials qualified against AMS6885 (refer to PRI QPL AMS6885), and shall be carried out within the responsibility of the purchaser and under control of its Quality organisation.
Standard

Unidirectional Carbon Fiber Tape Epoxy Repair Prepreg, Vacuum Curing Part 1 - General Requirements

2020-09-04
WIP
AMS6885/1
AMS6885/1 gives information about the technical requirements and qualification procedure for unidirectional carbon fiber tape epoxy repair prepreg capable of curing under vacuum for repair of carbon fiber reinforced epoxy structures. The repair system includes an epoxy film adhesive to be applied in a co-curing process with the prepreg for solid laminate and sandwich bonding.
Standard

Unidirectional Carbon Fiber Tape Epoxy Repair Prepreg, Vacuum Curing Part 2 - Qualification Program for Fiber, Carbon Tape Prepreg and Film Adhesive

2020-09-04
WIP
AMS6885/2
AMS6885/2 gives specific information about the qualification program for unidirectional carbon fiber tape epoxy repair prepreg capable of curing under vacuum for repair of carbon fiber reinforced epoxy structures. The prepreg system shall include an epoxy film adhesive to be applied in a co-curing process with the prepreg for solid laminate and sandwich bonding.
Standard

Unidirectional Carbon Fiber Tape Epoxy Repair Prepreg, Vacuum Curing Part 5 - Material Specification for Unidirectional Carbon Fiber Tape Epoxy Prepreg for Repair and Film Adhesive for Repair, 120-145

2020-09-04
WIP
AMS6885/5
AMS6885/5 is the Material Specification (MS) which defines the requirements of an unidirectional carbon fiber tape epoxy repair prepreg capable of curing under vacuum for repair of carbon fiber reinforced epoxy structures. It also defines the requirements of an epoxy film adhesive to be applied in a co-curing process with the prepreg for solid laminate and sandwich bonding.
Standard

Identification Marking Methods

2020-06-26
WIP
AS478Q

This standard provides the following:

a. Definition of terms pertaining to marking.

b. Symbols for marking location.

c. Requirements and restrictions for permanent markings.

d. Types of marking methods.

e. Rules for designating marking methods.

f. Table listing marking methods.

Standard

Carbon Fiber and Fiberglass Epoxy/Prepreg Products with 350 °F (177 °C) Cure for Aerospace Applications: Type 34, Class 4, Grade 294, Style 7781

2020-06-10
WIP
AMS6891/3
The intent of this specification is for the procurement of the material listed on the QPL and, therefore, no qualification or equivalency threshold values are provided. Users that intend to conduct a new material qualification or equivalency program must refer to the Quality Assurance section of this base specification, AMS6891.
Standard

Carbon fiber and Fiberglass Epoxy/Prepreg Products with 350 °F (177 °C) Cure for Aerospace Applications: Type 40, Class 1, Grade 196, Style 6K-70PW

2020-06-10
WIP
AMS6891/2
The intent of this specification is for the procurement of the material listed on the QPL and, therefore, no qualification or equivalency threshold values are provided. Users that intend to conduct a new material qualification or equivalency program must refer to the Quality Assurance section of this base specification, AMS6891.
Standard

Carbon Fiber and Fiberglass Epoxy Prepreg Products with 350°F (177 °C) Cure for Aerospace Applications: Type 35, Class 1, Grade 191

2020-06-10
WIP
AMS6891/1
The intent of this specification is for the procurement of the material listed on the QPL and, therefore, no qualification or equivalency threshold values are provided. Users that intend to conduct a new material qualification or equivalency program shall refer to the Quality Assurance section of this base specification, AMS6891.
Standard

Carbon Fiber and Fiberglass Epoxy/Prepreg Products with 350 °F (177 °C) Cure for Aerospace Applications: Type 42, Class 4, Grade 48, Style 108

2020-06-10
WIP
AMS6891/4
The intent of this specification is for the procurement of the material listed on the QPL and, therefore, no qualification or equivalency threshold values are provided. Users that intend to conduct a new material qualification or equivalency program must refer to the Quality Assurance section of this base specification, AMS6891.
Technical Paper

Phenolic SMC for Fire Resistant Electric Vehicle Battery Box Applications

2020-04-14
2020-01-0771
Phenolic resins that meet REACH compliance and contain lower free-formaldehyde are safer to handle, compound, and mold. These resin systems do not contain any styrene or require any fillers to achieve their rated fire resistance. A commercial phenolic sheet-molding compound (SMC) is presented that achieves a 2-minute cycle time and addresses the unique requirements in an electrified vehicle architecture. This new SMC material includes all the industrially relevant considerations including material processing, shelf life, and surface finish. Other topics such as material hybridization and comparison to incumbent materials also discussed. The resin system uses a water-based phenolic resole which is acid-cured. This chemistry presents several unique challenges and opportunities for the industry such as managing formulation pH and appropriate methods for quality control.
Technical Paper

Performance Study of an Innovative Collaborative Robot Gripper Design on Different Fabric Pick and Place Scenarios

2020-04-14
2020-01-1304
Light-weighting fiber composite materials introduced to reduce vehicle mass and known as innovative materials research activities since they provide high specific stiffness and strength compared to contemporary engineering materials. Nonetheless, there are issues related automation strategies and handling methods. Material handling of flexible textile/fiber components is a process bottleneck and it is currently being performed by setting up multi-stage manual operations for hand layups. Consequently, the long-term research objective is to develop semi-automated pick and place processes for flexible materials utilizing collaborative robots within the process. The immediate research is to experimentally validate innovatively designed grippers for efficient material pick and place tasks.
Standard

Hose Assemblies, Installed, Visual Inspection Guide For

2020-01-23
WIP
ARP1658C
This SAE Aerospae Recommended Practice (ARP) covers visible surface defects on aerospace hose assemblies which have been installed and are functioning within a working environment at the time of visual inspection. This document is intended to help those who are conducting periodic visual inspections of hose assemblies used in aerospace systems and ground servicing equipment to determine time for replacement by condition of hose assemblies at time of inspection. This practice is intended to augment existing procedures for replacement of hose assemblies based on service time. A constant surveillance of all hose assemblies for visible wear, defects, and/or damage shall be routine at all times of maintenance. When wear, defects, or damage to installed hose assemblies is detected, the hose assemblies shall be tagged or replaced in accordace with Section 4 of this document.
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