Criteria

Text:
Topic:
Display:

Results

Viewing 1 to 30 of 5872
2016-09-27
Technical Paper
2016-01-2114
Matthias Meyer
Carbon composites have been on an odyssey within the past 15 years. Starting on the highest expectations regarding the performance, reality was hitting a lot of programs hard. Carbon composites were introduced on a very high technical level and industry has shown of being capable to handle those processes in general. In particular, production never sleeps and processes undergo a continuous change. Within these changes costs remain the most critical driver. As products are improving during their lifetime, they usually increase the degree of complexity, too. According to the normal cost improvement, this has drastic consequences for production. When setting up the first generation of composite production, the part being produced has been in the centre of attention.
2016-09-27
Technical Paper
2016-01-2113
Raphael Reinhold
Resin transfer molding (RTM) is gaining importance as a particularly economical manufacturing method for composites needed in the automotive and aerospace industries. With this method, the component is first shaped with dry fiber reinforcements in a so-called “preforming process” before the mold is placed in a RTM tool, injected with resin and cured. In recent years, Brotje-Automation have been developing innovative product solutions that are specially designed for these preforming processes and suitable for industrial use. For the first time ever, Broetje’s Composite Preforming Cell (CPC) makes large-quantity serial production of complex and near-net-shape preforms for composite components using this RTM process possible. With the additional integration of the patented 3D Composite Handling System Broetje impressively demonstrates its service and product portfolio in the area of innovative composite manufacturing technology and its know-how as a complete system integrator.
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
2016-01-2112
Hilmar Apmann
As a new material FML made by aluminum foils and Glasfibre-Prepreg is a real alternative to common materials for fuselages of aircrafts. Since experiences within A380 this material has some really good advantages and becomes status as alternative to Aluminum and composite structures. Main goal for an industrial application for a higher production rates of aircrafts (like for single aisle) is the automation of production processes inside the process chain for FML-parts like skins and panels for fuselages. To reach these goals for high production rates first steps of automation inside this process chain have been developed in the last two years. Main steps is the automated lay-up of metallic foils and Glasfibre-Prepreg and also for integration of the bond film. Over this there are some more steps within positioning of i.e. stringers and doublers by automatic integration and shorter process chain to reduce process cost significantly.
2016-09-27
Technical Paper
2016-01-2121
Pavel Lykov PhD, Artem Leyvi, Rustam M. Baytimerov, Dmitry Zherebtsov, Alexey Shultc
The Copper-Nickel alloys are widely used in various industries. The adding of nickel significantly enhances mechanical properties, corrosion resistance and thermoelectric properties of copper. The technology of producing Copper-Nickel composite micro-powders by gaseous deposition of Nickel on the surface of copper powder is proposed. The vaporization of nickel is implemented by using electric arc. The dependence between mode of processing and the ratio of phases in the powder is investigated. The possibility of the obtained composite powder application in additive technologies is investigated. The equipment used in the research: magnetron sprayer, scanning electron microscopy (SEM), optical granulomorphometer Occhio 500 nano.
2016-09-27
Technical Paper
2016-01-2119
Gergis W. William, Samir N. Shoukry, Mariana M. William, Jacky C. Prucz
Air cargo containers are used to load freight on various types of aircrafts to expedite their handling. Fuel cost is the largest contributor to the total cost of ownership of an air cargo container. Therefore, a better fuel economy could be achieved by reducing the weight of such containers. This paper aims at developing innovative, lightweight design concepts for air cargo containers that would allow for weight reduction in the air cargo transportation industry. For this purpose, innovative design and assembly concepts of lightweight design configurations of air cargo containers have been developed through the applications of lightweight composites. A scaled model prototype of a typical air cargo container was built to assess the technical feasibility and economic viability of creating such a container from fiber-reinforced polymer (FRP) composite materials.
2016-09-27
Technical Paper
2016-01-2118
Patrick Land, Luis De Sousa, Svetan Ratchev, David Branson
With increased demand for composite materials in the aerospace sector, there is a requirement for the development of manufacturing processes that enable larger and more complex geometries, whilst ensuring that the functionality and specific properties of the component are maintained. To achieve this methods such as thermal roll forming are being considered. This method is relatively new to composite forming in the aerospace field, and as such there are currently issues with the formation of part defects during manufacture. Previous work has shown that precise control of the force applied to the composite surface during forming has the potential to prevent the formation of wrinkle defects. In this paper the development of various control strategies that can robustly adapt to different complex geometries are presented and compared within simulated and small scale experimental environments, on varying surface profiles.
2016-09-27
Technical Paper
2016-01-2117
Pavel Lykov PhD, Sergei Sapozhnikov, Rustam M. Baytimerov, Dmitry Zherebtsov, Konstantin Bromer
The development of Additive technologies (SLS/SLM, EBM, DMD) suggests the increase of range expansion of materials used. One of the most promising directions is products manufacturing from composite materials. The technology of composite micro-powders production on the basis of heat-resistant nickel alloy EP648 and Al2O3 is proposed. The aim of this research is to develop a method of producing composite micropowders for additive technology application. This method is based on modification of the metal micro-powders surface as a second phase in a planetary mixer (mechanochemical synthesis). The obtained composite micropowders are compared with powders which are recommended for selective laser melting usage (produced by MTT Technology). The equipment used in the research: planetary mixer, scanning electron microscopy (SEM), optical granulomorphometer Occhio 500nano.
2016-09-27
Technical Paper
2016-01-2142
Artem Leyvi, Pavel Lykov PhD, 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.
2016-06-29
Standard
AMSF24610A
This specification covers the requirements for a film-forming liquid hold down fixant. The hold down fixant solution shall consist of compounds as required, to conform to the requirements specified herein.
2016-06-29
Standard
AMSA8576A
This specification covers acrylic-monomer base adhesives intended for use in bonding acrylic plastics.
2016-06-24
Standard
AMS3841B
This specification covers a fire-retardant-treated cotton twill in the form of cloth.
2016-06-24
Standard
AMS3856/1B
This specification covers one weight and one weave of novoloid/aramid cloth.
2016-06-24
Standard
AMS3856/2B
This specification covers one weight and one weave of aramid cloth.
2016-06-24
Standard
AMS3856/3B
This specification covers one weight and one weave of nylon cloth.
2016-06-24
Standard
AMS3856B
This specification and its supplementary detail specifications cover flame resistant cloth woven from various fibers.
2016-06-20
Standard
AMS3813/2B
This specification covers parallel-strand ropes formed from impregnated aramid fibers.
2016-06-20
Standard
AMS3815E
This specification covers synthetic-rubber-coated nylon in the form of flat braid.
2016-06-20
Standard
AMS3800B
This specification covers one type of polyamide fiber in the form of knitted cloth.
2016-06-20
Standard
AMS3813/3B
This specification covers parallel-yarn ropes formed from impregnated aramid fibers.
2016-06-20
Standard
AMS3816D
This specification covers wax-coated nylon in the form of flat braid.
2016-06-16
Standard
AMS3817E
This specification covers a resin-coated, high-tenacity, continuous-filament nylon in the form of flat braid.
2016-06-16
Standard
AMS3818B
This specification covers a synthetic rubber-coated, high-tenacity, continuous-filament polyester in the form of flat braid.
Viewing 1 to 30 of 5872

Filter

  • Range:
    to:
  • Year: