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Viewing 1 to 30 of 2783
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
2016-01-2112
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.
2016-06-29
Standard
AMSA8576A
This specification covers acrylic-monomer base adhesives intended for use in bonding acrylic plastics.
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
AMSG25667A
This specification covers monolithic glass for use in aircraft glazing. (see 6.1.)
2016-06-29
Standard
AMSG25871A
This specification covers laminated glass, ready-cut, with various types of edge attachments, for use in aircraft glazing.
2016-06-06
WIP Standard
AMS3084C
This specification covers a solid film lubricant in the form of a ready-to-use, sprayable suspension.
2016-05-31
WIP Standard
AMSP22968A
This specification presents the requirements for one type of a heat-sensitive recording paper, in roll form, that furnishes permanent marking or tracing on one side.
2016-05-24
Standard
AS81914/7A
SCOPE IS UNAVAILABLE.
2016-05-13
WIP Standard
AMS3021E
This specification covers a neopentyl polyol ester fluid.
2016-04-27
WIP Standard
AMS3217/4C
This specification covers a standard fluoroelastomer (FKM) rubber stock in the form of molded test slabs.
2016-04-25
WIP Standard
AMS3644H
This specification covers a polyimide plastic in the form of isostatically molded rod, bar, and tube, unidirectionally molded plaque, and direct formed parts.
2016-04-13
WIP Standard
J1961
This test method specifies the operating procedures for using a solar fresnel reflector apparatus for the accelerated exposure of various automotive materials. Sample preparation, test durations, and performance evaluation procedures are covered in material specifications of the different automotive manufacturers.
2016-04-05
Technical Paper
2016-01-0286
Changsheng Wang, Haijiang Liu, Tao Zhang, Zhiyong Zhu, Liang Liu
Abstract With the increasing development in automotive industry, finite element (FE) analysis with model bias prediction has been used more and more widely in the fields of chassis design, body weight reduction optimization and some components development, which reduced the development cycles and enhanced analysis accuracy significantly. However, in the simulation process of plastic fuel tank system, there is few study of model validation or verification, which results that non-risky design decisions cannot be enhanced due to too much consuming time. In this study, to correct the discrepancy and uncertainty of the simulated finite element model, Bayesian inference-based method is employed, to quantify model uncertainty and evaluate the simulated results based on collected data from real mechanical tests of plastic fuel tanks and FE simulations under the same boundary conditions.
2016-04-05
Technical Paper
2016-01-0418
Xin Xie, Danielle Zeng, Junrui Li, Jeffrey Dahl, Qiancheng Zhao, Lianxiang Yang
Abstract Polymer plastics are widely used in automotive light weight design. Tensile tests are generally used to obtain material stress-strain curves. Due to the natural of the plastic materials, it could be elongated more than several hundred percent of its original length before breaking. Digital Image Correlation (DIC) Analysis is a precise, full field, optical measurement method. It has been accepted as a practical in-field testing method by the industry. However, with the traditional single-camera or dual-camera DIC system, it is nearly impossible to measure the extreme large strain. This paper introduces a unique experimental procedure for large elongation measurement. By utilization of quad-camera DIC system and data stitch technique, the strain history for plastic material under hundreds percent of elongation can be measured. With a quad-camera DIC system, the correlation was conducted between two adjacent cameras.
Viewing 1 to 30 of 2783

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