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Viewing 1 to 30 of 5929
2017-04-04
Event
Presentations of this session will address application and research on coatings for exterior body and plastics (including polycarbonate) as well as vehicle interiors and underbody/underhood. Focus will be on the 3-10 year timeframe.
2017-04-04
Event
Presentations of this session will address the development of polymeric and composite materials for automotive interiors and exteriors, powertrain components, as well as structural and non-structural applications. Focus is on design, processes, bonding and manufacturing technologies, as well as lightweighting strategies.
2017-04-04
Event
Presentations related to welding and joining of similar or dissimilar materials of plastics, composites, aluminum, magnesium, titanium, and conventional and advanced high strength steels will be given. Papers related to friction stir (spot) welding, ultrasonic welding, resistance welding, arc welding, laser welding, brazing or soldering, riveting and bolting, and adhesive are planned as well. Papers related to strength, fracture and fatigue of welds, joints and fasteners have been invited.
2016-10-17
Technical Paper
2016-01-2272
Carl Bennett, Jason Bell, Jeffrey Guevremont
Elastomer compatibility is an important property of lubricants. When seals degrade oil leakages may occur, which is a cause of concern for original equipment manufacturers (OEMs) because of warranty claims. Leakage is also a concern for environmental reasons. Most often, the mechanical properties and fitting of the oil seals is identified as the source of failure, but there are cases where the interaction between the lubricant and the seal material can be implicated. The performance of seal materials in tensile testing is a required method that must be passed in order to qualify lubricant additive packages. We conducted an extensive study of the interactions between these elastomeric materials and lubricant additive components, and their behavior over time. The physicochemical mechanisms that occur to cause seal failures will be discussed.
2016-10-05
Event
Topics Include: Advanced Composite Forming and Joining High Output Composites Nanotechnology Low Cost Composite Repair of Composites Out of Autoclave Processes Thermal Structures Composite Manufacturing Composite Tooling Thermoplastics in Aerospace Structures
2016-10-05
Event
Topics Include: Advanced Composite Forming and Joining High Output Composites Nanotechnology Low Cost Composite Repair of Composites Out of Autoclave Processes Thermal Structures Composite Manufacturing Composite Tooling Thermoplastics in Aerospace Structures
2016-10-05
Event
Topics Include: Advanced Composite Forming and Joining High Output Composites Nanotechnology Low Cost Composite Repair of Composites Out of Autoclave Processes Thermal Structures Composite Manufacturing Composite Tooling Thermoplastics in Aerospace Structures
2016-10-04
Event
Topic Include: Polymers, Coatings, and Surface Technologies Standards and Regulations Environmental Compliance Life Cycle Analysis Green/Sustainable Applications
2016-10-04
Event
Topics Include: Advanced Composite Forming and Joining High Output Composites Nanotechnology Low Cost Composite Repair of Composites Out of Autoclave Processes Thermal Structures Composite Manufacturing Composite Tooling Thermoplastics in Aerospace Structures
2016-10-04
Event
Topics Include: Advanced Composite Forming and Joining High Output Composites Nanotechnology Low Cost Composite Repair of Composites Out of Autoclave Processes Thermal Structures Composite Manufacturing Composite Tooling Thermoplastics in Aerospace Structures
2016-09-27
Technical Paper
2016-01-2143
Yury Zhuk
The EU REACH regulations set September 2017 as a “sunset date” for the use of toxic Hexavalent Chromium salts, and as this date is approaching the aerospace manufacturers are looking for alternative coatings to replace Hard Chrome plating (HCP). HCP is widely used in the aircraft industry to protect steel components against wear, corrosion and galling. Hardide-A CVD Tungsten/Tungsten Carbide coating has met the technical performance requirements as a potential alternative to HCP on some specific Airbus aircraft components. This newly-developed CVD coating is crystallized from the gas phase atom-by-atom, forming a uniform layer on both internal and external surfaces and complex shaped parts, which are impossible to coat by thermal spray coatings, considered to be the best available alternative to HCP. Hardide coating consists of Tungsten Carbide nano-particles dispersed in metal Tungsten matrix, combining hardness with toughness and crack-resistance.
2016-09-27
Technical Paper
2016-01-2142
Pavel Lykov PhD, Artem Leyvi, Rustam M. Baytimerov, Aleksei Doikin, Evgeny Safonov
Nowadays the treatment of solid surface by powerful streams of charged particles accelerated with power density of ≥106 W/сm2 is widely used for modifications of different materials properties. Fast electron beam power entry into the target material causes intense thermal and deformation processes. The changing of the structure, the phase composition, the microrelief of the treated surface consequently happens. It is often accompanied by the hardening and increase of the wearing properties. Low-energy high-current electron beam usage is proposed as a finishing treatment of product obtained by selective laser melting of heat-resistant nickel alloy EP648. The subject of the research is the surface properties of the product.
2016-09-27
Technical Paper
2016-01-2144
Galina M. Susova, Rostislav Sirotkin
FMEA methodology is widely used today for solution of practical analysis problems, quality (reliability, risks) evaluation and assurance etc., owing to a clear and simple algorithm and the absence of restrictions on a subject of analysis (i.e., systems, processes, products). However, the efficiency of applying FMEA methodology for problems solution is determined by the choice of elements of analysis, completeness of identification of potential non-conformities, their causes, frequencies and effects. Quality of manufacture is determined by deviations from requirements of design and manufacturing documentation including drawings. In this article a task of ensuring a steady reduction of deviations from these requirements during manufacture through implementation of preventive actions combined with control of time and costs for correction of non-conformances is considered.
2016-09-27
Technical Paper
2016-01-8044
Guoyu Feng, Wenku Shi, Henghai Zhang, Qinghua Zu
In order to predict the fatigue life of heavy commercial vehicles thrust rod made of rubber material dumbbell specimens and uniaxial tensile fatigue tests. Based on the measured data samples to the maximum principal strain injury parameters established rubber uniaxial fatigue life prediction models. In the longitudinal tension and compression loading, fatigue life V rods were predicted, and by the uniaxial fatigue test verification, the results show that the maximum principal strain prediction model, the maximum error is less than 10% predicted better results. Show by dumbbell specimen data, the establishment of a spherical hinge rubber life prediction model method, it is possible to predict the fatigue life of the thrust rod.
2016-09-27
Technical Paper
2016-01-2124
Sara Nilsson, Jonas Jensen, Mats Björkman, Erik Sundin
For the aerospace industry carbon fiber reinforced plastics (CFRP) is one of the fastest developing materials right now. The material has a strength-to-weight ratio that is several times higher than aluminium and steel, which makes it a great fit for applications where a low weight is crucial while maintaining strength and stiffness. It is specifically CFRP in pre-impregnated form, so called pre-preg, which has made its way into the aircrafts. Pre-preg is an anisotropic material that lets the designer control its properties to a high level of detail. Analogously to the material becoming used more widely in the aerospace industry the costs have decreased as the manufacturing methods have developed to follow the demands. However, how material and manufacturing method change the requirements and affect a product's design and performance can be hard to determine.
2016-09-18
Technical Paper
2016-01-1913
Alessandro Sanguineti, Federico Tosi, Andrea Bonfanti, Flavio Rampinelli
Organic brake pads for automotive can be defined as brake linings where the bonding matrix is constituted of high-temperature thermosetting resins. Bonded together inside the polymeric binder are a mix of components (e.g. abrasives, lubricants, reinforcements, fillers, modifiers…), each playing a distinctive role in determining the tribology and friction activity of the final friction material. The herein reported work presents novel inorganic “alkali-activated”-based materials suitable for the production of alternative brake linings (i.e. brake pads), by means of an unconventional low-temperature wet process. Exploiting the hydraulic activity of specific components when exposed to an alkaline environment, such peculiar inorganic materials are capable of coming to a complete hardening without the need of traditional high-temperature energivorous procedures.
2016-08-24
Standard
AMS3681D
This specification covers an electrically-conductive adhesive supplied as two components, a silverfilled, epoxy-base adhesive and a separate curing agent which may be paste or liquid.
2016-08-19
WIP Standard
AMS3895C
This specification covers epoxy-resin-impregnated carbon-fiber broadgoods and tape in the form of multi-plied unidirectional layers constructed from the same or uniform fibers and supplied as broadgood rolls tape, or cut sheet. The individual ply orientation shall be ordered. These products have been used typically for fabricating high-strength and high-modulus composite parts, using either hand-layup or a machine for automated-tape-layup, but usage is not limited to such applications.
2016-08-19
WIP Standard
AMS3847D
This specification covers one type of quartz cloth impregnated with a heat-reactive, thermosetting, polyimide resin system, the resin being processed to a "B" stage condition, and furnished in continuous rolls of full width material. This cloth has been used typically for structural laminates requiring high strength and long term heat resistance up to 315 degrees C (599 degrees F), but usage is not limited to such applications.
2016-08-19
WIP Standard
AMS3834B
This specification covers a style 7781 glass cloth impregnated with a heat-curable polyester resin system, the resin being processed to a "B" stage condition, and furnished in the form of continuous rolls. Primarily for vacuum-bag molded, flame resistant laminates used up to 80 degrees C (180 degrees F).
2016-08-19
WIP Standard
AMS3844C
This specification covers one type of glass cloth impregnated with a heat-reactive, thermosetting, hot-melt, addition-type polyimide resin system, furnished in continuous rolls of full width material. This cloth has been used typically for structural laminates requiring high strength and heat resistance for long-term service up to 230 degrees C (446 degrees F) and short-time service up to 260 degrees C (500 degrees F), but usage is not limited to such applications.
2016-08-19
WIP Standard
AMS3849C
This specification covers one type of quartz cloth impregnated with a heat-reactive, thermosetting, hot-melt, addition-type, polyimide resin system, furnished in continuous rolls of full width material. This cloth has been used typically for structural laminates requiring high strength, excellent electrical resistance, and heat resistance for long-term service up to 230 degrees C (446 degrees F) and short-time service up to 260 degrees C (500 degrees F), but usage is not limited to such applications.
2016-08-19
WIP Standard
AMS3832D
This specification covers continuous, multiple-strand, glass roving of Type "S-2" glass impregnated with a heat-curable epoxy resin matrix and processed to a "B" stage condition. This roving has been used typically for filament winding of rocket motor cases, pressure vessels, aircraft, and related structures, but usage is not limited to such applications.
Viewing 1 to 30 of 5929

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