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Viewing 1 to 30 of 3267
2017-04-05
Event
This session presents the latest developments in automotive applications of wrought products. The papers cover a wide range of the technical aspects including alloy development, lightweight design, process development and simulation as well as performance optimization.
2017-04-05
Event
This session presents the latest developments in automotive applications of wrought products. The papers cover a wide range of the technical aspects including alloy development, lightweight design, process development and simulation as well as performance optimization.
2017-03-28
Technical Paper
2017-01-0286
Amrinder Singh, Abhishek Ramakrishnan, Guru Dinda
Additive manufacturing (AM) of metals is finding numerous applications in automotive industry. In 21st century aluminum is second to steel in automotive sector, because of its high strength to weight ratio and hence developing AM for aluminum alloys becomes necessary to make sure industry gains maximum benefit from AM. This study specifically deals with the manufacturing of Al 7050 alloy, which is quite hardest alloy to manufacture using AM. The ultimate goal is to optimize the laser deposition parameters to deposit defect free Al 7050 alloy on rolled aluminum alloy substrate. Parameter optimization (laser power, powder flow rate and scanning speed) gets difficult with the presence of various low melting and boiling point alloying elements such as Zn, Mg etc. Numerous other challenges faced while depositing Al 7050 alloy, are also being briefly discussed in this article.
2017-03-28
Technical Paper
2017-01-1265
Nia R. Harrison, S. George Luckey, Breana Cappuccilli, Ghassan Kridli
The typical paint bake cycle includes multiple ramps and dwells of temperature through e-coat, paint, and clear coat with exposure equivalent to approximately 190°C for up to 60 minutes. 7xxx-series aluminum alloys are heat treatable, additional thermal exposure such as a paint bake cycle could alter the material properties. Therefore, this study investigates the response of three 7xxx-series aluminum alloys with respect to conductivity, hardness, and yield strength when exposed to three oven curing cycles of a typical automotive paint operation. The results have indicated that alloy composition and artificial aging practice influence the material response to the various paint bake cycles.
2017-03-28
Technical Paper
2017-01-1272
Nick Parson, Jerome Fourmann, Jean-Francois Beland
One of the main applications for extrusions in the automotive sector is crash structures including crash rails, crash cans, bumpers, and structural body components. The objective is usually to optimize the energy absorption capability for a given structure weight. The ability to extrude thin wall multi-void extrusions contributes to this goal. However, the alloy used also plays a significant role in terms of the ability to produce the required geometry, strength which to a large extent controls the energy absorption capability, and the “ductility” or fracture behavior which controls the strain that can be applied locally during crush deformation before cracking. This paper describes results of a test program to examine the crush behavior of a range of alloys supplied by Rio Tinto Aluminium for automotive applications, as a function of processing parameters including artificial aging and quench rate.
2017-03-28
Technical Paper
2017-01-0502
Mingde Ding, Jiancai Liu, Jianbo Su, Zhong Su, Bo Liu, Ligang Wang
The IP carrier plays a very important structural and safety role in the vehicle. Functionally, it forms the skeleton of the cockpit, providing the base architecture off which IP components are attached and function. At present, the IP carrier is commenly used steel, and is welded by more than 20 parts. Its weight is usually 8-14kg. For the reason of fuel efficiency and enviromental friendly, lightweight of the IP carrier is very necessary. Various lightweight technologies have been applied to IP carrier: Magnesium alloy part, Alluminum alloy part, Hybrid composite part, Composite material injection part. For Magnesium alloy part, the IP carrier which have the equal performance compared to steel part can be integrated to one part, therefore the production process is simplified. Weight can be reduced 40%-60% However, the magnesium injection part have high process requirement and need postreatment which will add cost obviously. These disadvantages limited the mass production.
2017-03-28
Technical Paper
2017-01-0396
Guobiao Yang, Changqing Du, Dajun Zhou, Hao Wang, Elizabeth Lekarczyk, Lianxiang Yang
Abstract Vehicle weight reduction is a significant challenge for the modern automotive industry. In recent years, the amount of vehicular components constructed from aluminum alloy has increased due to its light weighting capabilities. Automotive manufacturing processes, predominantly those utilizing various stamping applications, require a thorough understanding of aluminum fracture predictions methods, in order to accurately simulate the process using Finite Element Method (FEM) software or use it in automotive engineering manufacture. This paper presents the strain distribution of A5182 aluminum samples after punch impact under various conditions by Digital Image Correlation (DIC) system, its software also measured the complete strain history, in addition to sample curvature after it was impacted; therefore obtaining the data required to determine the amount of side-wall-curl (Aluminum sheet springback) present after formation.
2017-03-28
Technical Paper
2017-01-0467
Wei Yuan, Brian Jordon, Bita Ghaffari, Harish Rao, Shengyi Li, Min Fan
Abstract Lightweight metals such as Al and Mg alloys have been increasingly used for reducing mass in both structural and non-structural applications in transportation industries. Joining these lightweight materials using traditional fusion welding techniques is a critical challenge for achieving optimum mechanical performance, due to degradation of the constituent materials properties during the process. Friction stir welding (FSW), a solid-state joining technique, has emerged as a promising method for joining these lightweight materials. In particular, high joining efficiency has been achieved for FSW of various Al alloys and Mg alloys separately. Recent work on FSW of dissimilar lightweight materials also show encouraging results based on quasi-static shear performance. However, coach-peel performance of such joints has not been sufficiently examined.
2017-03-28
Journal Article
2017-01-1271
David Wright, John Henshaw, Nia R. Harrison, S. George Luckey
High-strength aluminum alloys such as 7075 can be formed using advanced manufacturing methods such as hot stamping. Hot stamping utilizes an elevated temperature blank and the high pressure stamping contact of the forming die to simultaneously quench and form the sheet. However, changes in the thermal history induced by hot stamping may increase this alloy’s stress corrosion cracking (SCC) susceptibility; a common corrosion concern of 7000 series alloys. This work applied the breaking load method for SCC evaluation of hot stamped AA7075-T6 B-pillar panels that had been artificially aged by two different artificial aging practices (one-step and two-step). The breaking load strength of the specimens provided quantitative data that was used to compare the effects of tensile load, duration, alloy, and heat treatment on SCC behavior.
CURRENT
2017-02-21
Standard
AMS4290M
This specification covers an aluminum alloy in the form of die castings.
CURRENT
2017-02-17
Standard
AMSQQA225/4A
This specification covers the specific requirements for 2014 aluminum alloy bar, rod, wire and special shapes produced by rolling, drawing or cold finishing.
2017-02-16
WIP Standard
AMS4485A
This specification covers a magnesium alloy in the form of extruded bars, rods, wire, tubing, and profiles. These extrusions have been used typically for parts requiring a combination of light weight, high yield strength up to 480 °F (250 °C), relatively high corrosion resistance, and good flammability resistance for magnesium alloys,but usage is not limited to such applications.
CURRENT
2017-02-14
Standard
AMS4071N
This specification covers an aluminum alloy in the form of drawn, round seamless tubing having a wall thickness of 0.010 to 0.450 inch (0.25 to 11.43 mm) inclusive, and nominal outside diameters of 0.125 to 3.000 inch (3.18 to 76.2 mm), inclusive (see 8.5).
CURRENT
2017-02-13
Standard
AMS4472A
This specification covers an aluminum alloy in the form of plate 0.500 to 2.250 inch (12.70 to 57.15 mm) in nominal thickness (see 8.5).
2017-02-08
WIP Standard
AMS03_3A
This SAE Standard specifies the requirements for the application of sprayed metal coatings of aluminum, zinc, or aluminum-zinc based alloys for the protection of aluminum alloys against corrosion. It does not cover the metal spraying of aluminum armour materials, which should be treated in accordance with the requirements of Def Stan 08-39.
2017-01-30
WIP Standard
AMS2355M
This specification covers quality assurance sampling and testing procedures used to determine conformance to applicable specification requirements of wrought aluminum alloy and wrought magnesium alloy mill products (except forging stock), and includes quality assurance and testing procedures for rolled, forged, and flash welded rings (see 8.3). Requirements are specified in inch/pound units.
2017-01-27
WIP Standard
AMS4416B
This specification covers an aluminum-lithium alloy in the form of extruded profiles.
2017-01-10
Technical Paper
2017-26-0167
Salah M. Khaleel, Bernard Rolfe, Riyadh Al-Ameri, Tim De Susa
Abstract Given the need to reduce mass in products to reduce emissions, particularly in the transportation sector, the application of adhesively bonded joints is becoming more utilised. This is very true for the emerging multi-material structures. The adhesive joint expresses good properties regarding stress distribution, sound isolation and fatigue resistance; these properties are well defined in many applications such as aircraft and car industry. However, the adhesive joints have some drawbacks in regard to the joint strength. One of the keys to strengthening joints is the surface treatment of the adherents. It is found that the surface treatments play an important role in improving the joint strength and durability. Moreover, it is also found that each adhesive material will require different types of surface treatments to make the right balance between the joint strength and fracture modes.
CURRENT
2017-01-05
Standard
AMS4291J
This specification covers an aluminum alloy in the form of die castings.
CURRENT
2017-01-05
Standard
AMS4121J
This specification covers an aluminum alloy in the form of bars, rods, and wire.
CURRENT
2017-01-04
Standard
AMS4245F
This specification covers an aluminum alloy in the form of welding wire.
CURRENT
2017-01-03
Standard
AMS4335A
This specification establishes requirements for 2xxx-series and 7xxx-series aluminum alloy forgings of any shape or form from which finished parts are to be made. (See 8.2, 8.3, 8.4, 8.5.4, 8.6 and 8.8.)
CURRENT
2016-12-14
Standard
AMS4313E
This specification covers aluminum alloy rolled or forged rings up to 6 inches (152 mm) which are produced and shipped in the –T351 or –T352 temper and are artificially aged to the –T82 temper prior to being put into service.
CURRENT
2016-12-13
Standard
AMS4221E
This specification covers an aluminum alloy in the form of plate 1.500 inches (38.10 mm) to 6.000 inches (152.40 mm) in nominal thickness (see 8.4).
2016-12-01
Magazine
Additive Manufacturing How 3D Printing Will Transform the A&D Support Chain Advances in Lightweight Electronics Protection Conformal Coatings Increase Reliability of Aerospace and Military Assemblies Powering Outer Space An In-Depth Look at Aerospace Battery Technology Using High Bandwidth Oscilloscopes to Analyze Radar and Electronic Warfare Systems Bio-inspired Airborne Infrastructure Reconfiguration (BioAIR) EMI Analysis Software Helps Telescope Group Simulate RFI Mitigation Epitaxial Growth of Rhenium with Sputtering Processing and Characterization of Polycrystalline YAG (Yttrium Aluminum Garnet) Core-Clad Fibers Multi-Scale Analysis of Deformation and Failure in Polycrystalline Titanium Alloys Under High Strain Rates Abrasion Testing of Products Containing Nanomaterials Spectrum Fatigue of 7075-T651 Aluminum Alloy under Overloading and Underloading
CURRENT
2016-11-28
Standard
AMS4174E
This specification covers an aluminum alloy in the form of flash welded rings 0.062 to 4.499 inches, incl (1.57 to 114.27 mm incl) in radial thickness, with cross sectional areas up to 32 in2 (206 cm2) (see 8.5).
Viewing 1 to 30 of 3267

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