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CURRENT
2017-11-15
Standard
AMS4612K
This specification covers a copper alloy (naval brass) in the form of bars and rods.
CURRENT
2017-11-15
Standard
J2383_201711
This SAE Recommended Practice establishes uniform Installation Parameters for desiccant Air Dryers for vehicles with compressed air systems.
CURRENT
2017-11-15
Standard
AMS2431/2F
This specification, in conjunction with the general requirements for peening media covered in AMS2431, establishes the requirements for the procurement of cast steel shot with a hardness of 55 to 62 HRC.
2017-11-14
Article
One hundred days after France's PSA group bought GM's Opel/Vauxhall, the first and crucial detailed plan of action and its effects for the combined businesses is revealed at Opel’s Rüsselsheim HQ.
CURRENT
2017-11-13
Standard
AMS4475B
This specification covers an aluminum alloy in the form of alclad coiled sheet from 0.010 to 0.128 inches, incl (0.25 to 3.25 mm, incl) in thickness supplied in the –T4 temper (see 8.5).
CURRENT
2017-11-13
Standard
AMS4269A
This specification covers an aluminum alloy in the form of sheet and plate 0.020 to 0.500 inch (0.508 to 12.70 mm) inclusive, in thickness, supplied in the -T361 temper (see 8.5).
CURRENT
2017-11-09
Standard
AMS2451/12A
This specification covers the engineering requirements and process for brush plating of tin by electrodeposition. It shall be used, in conjunction with AMS2451, for general purpose tin deposits.
CURRENT
2017-11-09
Standard
AMS2451/13A
This specification covers the engineering requirements and process for brush plating of silver by electrodeposition. It shall be used, in conjunction with AMS2451, for silver deposits.
CURRENT
2017-11-09
Standard
AMS5442B
This specification covers a corrosion and heat-resistant nickel alloy in the form of bars, forgings, and flash welded rings up to 5.0 inches (127mm) in least nominal cross-sectional dimension having a cross-sectional area not greater than 50 in2 (323 cm2), and stock of any size for forging or flash welded rings (see 8.5).
CURRENT
2017-11-09
Standard
AMS5596M
This specification covers a corrosion and heat-resistant nickel alloy in the form of sheet, strip, foil, and plate 1.00 inch (25.4 mm) and under in thickness (see 8.5).
2017-11-08
Article
Aerospace manufacturers and operators—large and small—require solutions that shorten product development; maintenance, repair, and overhaul cycles; and lower fuel costs through lightweighting.
CURRENT
2017-11-08
Standard
AMS4403A
This specification covers an aluminum alloy in the form of die forgings 1.000 to 12.000 inches inclusive (25 to 305 mm) in nominal thickness at the time of heat treatment and of forging stock (see 8.4).
CURRENT
2017-11-08
Standard
AMS2434E
This specification covers the requirements for electrodeposited tin-zinc alloy plating.
CURRENT
2017-11-08
Standard
J1701M_201711
This SAE Information Report is provided as an advisory guide. Individual application discretion is recommended. The content has been presented as accurately as possible, but responsibility for its application lies with the user. The document covers a number of the variables in the torque-tension relationship: friction, materials, temperature, humidity, fastener and mating part finishes, surfaces, and the kind of tightening tools or equipment used. Also described in this document is the torque management required to achieve satisfactory fastened joint tightening. This guide is limited in application to clearance fit threads, such as the common 6g/6H class of fit. Other thread types including interference fit, mechanical locking, prevailing torque, or forms other than ISO-Metric may apply to some aspects of this standard but are not specifically covered.
CURRENT
2017-11-08
Standard
AMS6516B
This specification covers a premium aircraft-quality alloy steel in the form of bars and forgings 189 in2 (1219 cm2) and under in cross-sectional area and forging stock of any size.
2017-11-07
Technical Paper
2017-36-0087
Michele Pirola dos Santos, Kauê Cruz Silva, Diego Bellano Paulo, Carlos Alberto Barth Freitas Filho
Abstract The loss of preload in bolted joints is the main cause of quality problems, reworks or even joint failures during work. Several measurement methods are presented in the literature, but the difference of precision between each one or even the right criteria to select the most appropriate method for each project is not clearly defined. This study evaluated the differences between two of the main losses of preload measurements methods currently used in the market: clamp load through elongation measurement by ultrasonic method and checking torque method. For this, a load cell was used to measure the clamp load after the tightening torque and joint relaxation. Since the checking torque method is one of the most frequently used method of the torque auditing, it is also presented a torque x angle curve analysis for different torque points that are normally displayed by the measuring equipment.
2017-11-07
Technical Paper
2017-36-0082
R.B. Obara, L.C. Guedes
Abstract Internet has transformed all industries and the automotive sector is on its list. It is true that manufacturing has experienced great advances in recent years, but the massive use of internet in industry is about to revolutionize it once again. The Internet of Things (IoT), the Big Data Analytics and the use of RFID technology will revolutionize manufacturing, giving to the so called “smart factories” the ability for self-diagnosis, self-configuration and self-optimization. That is what we call Industry 4.0, or the fourth industrial revolution. However, how will Industry 4.0 affect automakers and end users of vehicles? What are the challenges to bring Industry 4.0 innovations to the manufacturing industry? The present work discusses future trends in engine manufacturing, focusing on the quality control of its main components. Also, a fully automated inspection technique for quality control of cylinder bores from internal combustion engines is presented.
2017-11-07
Technical Paper
2017-36-0132
Vitor Gutierrez, Winston Attrot
Abstract Commercial vehicles are being developed for long decades in Brazil creating a deep background on manufacturing process. With the current scenario a variety of different vehicles specifications (weight capacity, load distribution, torque, size, etc.) are being required by the market. Joints with bolts and nuts are the engineering solution for the most of the problems found in automotive engineering regarding commercial vehicles. Screw processes were made during the last 150 years. Nowadays current frame modifications on aftermarket are made with arc weld process that affects directly the material properties and the process needs to be performed by critical personal with training and capacity. In addition cost and timing does not fit for the best equation on how to proceed with the modifications. The solution proposed brings more flexibility on frame assemblies that can be extended to other products.
2017-11-07
Technical Paper
2017-36-0138
Mauro Quaresma Lobato, Rafael Assis da Silva, Rodrigo Ribeiro Lima, Gabriel Jones Ohana, José Maria do Vale Quaresma, Pedro Henrique Lamarão Souza
Abstract It is known that aluminum alloys can be classified as alloys for the production of castings and wrought alloys (rolling, extrusions, forgings and others). Wrought aluminum alloys are subdivided into heat-treatable alloys, those that respond to heat treatment to increase their mechanical strength and non heat-treatable alloys, whose mechanical properties can only be improved by cold working. The use of aluminum alloys has a great advantage due to the strength / weight ratio of Al, it has been used in industrial applications to different solutions, such as in the construction of automobiles, aerial and space vehicles, packaging and in overhead transmission lines. This paper aims to analyze the effect of heat treatment on the microhardness, ultimate tensile strength and in the elongation of the Al-0,18%Zr; Al-0.18%Zr-2.0%Mg and Al-0.18%Zr-6.0%Mg alloys compared to results obtained without heat treatment.
2017-11-07
Technical Paper
2017-36-0153
G. Boidi, I. S. Tertuliano, M.F. Cano, G.A.A. Machado, R.M. Souza, I.F. Machado
Abstract During gear shifting, the contact between teeth composes a tribological system of considerable importance regarding energy dissipation in road vehicles. Improvement of tribological system efficiency leads to costs and pollutant emission reductions. Powder metallurgy (PM) is a near-net-shape technique that allows the production of parts with complex geometry - such as gears, lower costs and larger range of material utilization compared to other manufacturing processes. Furthermore, the presence of pores in sintered material could be a beneficial factor for friction reduction and wear resistance, due to oil reservoir and debris trapping effects, and film thickness variation that could enhance lubricant load support capacity. This work aims to evaluate the lubricant effect on support capacity due to surface pores in sintered steel with different levels of porosity. Results were compared with standard gear material based on friction coefficient results.
2017-11-07
Technical Paper
2017-36-0181
Juliano Vaz, Allan R. Machado, Rodrigo K. Martinuzzi, Mario E. S. Martins
Abstract Intake tuning and ram effect are widely known methods to increase engine performance. This paper details the design, manufacturing and results of an intake system with active duct length variation for a CBR600RR 2008 engine, equipped with a restrictor downstream of throttle body, in accordance due to Formula SAE competition rules. The engine was discretized in Gamma Technologies' GT-Power software bundle, and with the aid of the computational tool Design of Experiments (DoE), the lengths and diameters of the inlet ducts and beyond the plenum volume were determined in order to increase the engine torque in the range of 6000 to 12000 RPM. After the dimensioning process, the assembly was modeled in CAD, analyzing the packaging requirements determined by the regulation and a better adaptation of the system to the prototype, and then fabricated, including the plenum, restrictor and intake manifold.
2017-11-07
Technical Paper
2017-36-0218
Felype Nery de Oliveira Vasconcelos, Elaine Cristina Guglielmoni Silva, Gabriela Vieira, Jeeves Lopes dos Santos, André Rolim Almeida Guimarães, Marcel Liberato Queda
Abstract The automotive industry is one of the most strict and demanding industries when it comes to the safety and quality of its products. One of the cornerstones in order to achieve such demands is to have high reliability of its powertrain controls software developed using the V-Cycle methodology. With the V-Cycle approach, it is essential to verify and validate every step of the software development process such as requirements elicitation, code development and prototyping, all this being done before the actual software can be tested on the vehicle. This process is of extreme importance but it comes with the downside of increased project cost and timing. An alternative and solution to the increase in project cost and timing is the use of Hardware-In-the-Loop simulators. The HIL is a powerful tool that has the capability of running real-time simulations of a full vehicle.
2017-11-07
Technical Paper
2017-36-0225
J.A.C. Lara, C.P. Couto, M.A. Colosio, J.L. Rossi, L.M. Abbade
Abstract The application of press hardening steels (PHS) Al-Si coating has been increasing in body in white vehicles as an approach to meet the demands of safety and CO2 reduction regulations. The vehicle structures with PHS largely depend on the integrity and the mechanical performance of the spots weld. During the spot welding process, intermetallic phase may appear in function of the chemical composition of the steel and coating. One of these intermetallics is the Fe-Al phase which brittleness decreases the strength of the weld joint. In this study, resistance spot welding (RSW) experiments were performed in order to evaluate the influence of the welding parameters of single-lap joints PHS - 22MnB5 steel grade.
2017-11-07
Technical Paper
2017-36-0228
Saulo Barreto, Julio Ferraz, Erico Martins
Abstract This paper shows the results obtained from the implementation of an automated system for verification and validation of End-of-Line test executions in an automotive production plant environment. The objective is to assure all external tool test commands sent to the vehicle ECUs have been sent correctly and the answers from the respective ECUs to these commands are appropriate. The aim of this automation process is to increase security in the analysis and to spare time in the tests, considering that the activity is often done manually and repeatedly. With this purpose, a computer program was developed in open source language, allowing it to be executed on common market operating systems. The software was developed to allow the creation of specific test command lists for each vehicle model in a way that the lists can be edited and stored, according to project modifications in new vehicles.
2017-11-07
Technical Paper
2017-36-0239
Mauro Quaresma Lobato, Rafael Assis da Silva, Jesus Nazareno Pereira Cunha, Everaldo Afonso Fernades, Pedro Henrique Lamarão Souza, José Maria do Vale Quaresma
Abstract The Hardening by cold work is capable of increasing the mechanical strength of non-ferrous metals. The combination of alloying elements in solid solution and cold working is extremely effective in achieving greater strength for aluminium alloys. However, some alloys may be susceptible to stress corrosion and are notoriously difficult to fabricate during hot and cold work. A requirement for adding the alloy elements in this work will be that the interaction between them will provide hardening by additional cold working, but with no occurrence of chemical interaction between them and not removing them from the solid solution. This paper aims to analyze the effect of cold working on mechanical properties of Al-0.18%Zr, Al-0.18%Zr-2.0%Mg and Al-0.18%Zr-6.0%Mg alloys compared to results obtained without cold working. The alloys were melted in a muffle furnace and cast in a water-cooled Cu mold.
2017-11-07
Technical Paper
2017-36-0242
Alexandre Saldanha do Nascimento, Carlos Alberto Mendes da Mota, Carlos Vinicius de Paes Santos, Daniel Rodrigues Oliveira, Everaldo Afonso Fernandes, Fabrício Paiva da Silva, Humberto Aguirre Muños
Abstract The maintenance and manufacture of Chassis have been used of more noble materials in the welding applied to the most critical points. In this sense, this study presents the results of some researches developed with ASTM A182 F22 structural steel (a low alloyed steel) by the AWS ER 80S-G Wire. For the buttery, the double layer technique was used with "Higuchi" and "modified Higuchi " tests and the application of "decision diagrams" to refine the parameters to be used. In order to verify the efficiency of the mentioned techniques of fabrication, microhardness tests were carried out, the presence of carbides formed at the interface between the filling and buttery was observed, these responsible for microhardness alterations were also observed the presence of undesired structures such as Martensite in the analyzed ZACs. The welding process used was the GMAW with gas Ar2% O2.
2017-11-07
Technical Paper
2017-36-0294
Henrique Zambon, Marcos Torres, Odair Berti
Abstract In order to optimize the development of bolted joints used to components attachments in the Sidemember of commercial vehicles, the joints development has become relevant to better definition of the fasteners size, eliminating overweight and avoiding under or super-sized. This paper presents a development sequential approach of bolted joints applied on commercial vehicles ensuring the correct specifications usage of the fasteners and the joint to keep their clamp force. The evaluations were conducted based on theoretical and practical aspects applied on products and in the definition of all elements contained in a joint. The calculation methodology was developed based on standardized bolts and forces generated through the reactions of the components required for each vehicle family.
2017-11-05
Technical Paper
2017-32-0006
Yoichi Inoue, Toshiya Ohta, Hirotaka Kurita
A carburizing is widely applied for many kinds of engine components for motorcycles. On the other hand, a delayed fracture phenomenon of strengthened steel materials occurred under actual usage is a serious concern. The delayed fracture characteristics of surface modified steels such as a carburized steels followed by a tempering have a difficulty being evaluated by only measuring a partial characteristic of the hardened portion due to the existence of an inhomogeneity of a microstructure and a gradient of strength. Therefore, the studies on the characteristics of the delayed fracture of the surface modified steels are not so many. In this paper, the authors evaluated the delayed fracture characteristics of carburized and tempered actual components by comparing hydrogen desorption curves acquired with a thermal desorption spectroscopy using hydrogen-charged specimens with changing tempering conditions.
2017-11-05
Technical Paper
2017-32-0125
Rianti Sulamet-Ariobimo, Gregah Yudha, Tono Sukarnoto, Yusep Mujalis, Yoska Oktaviano
Lighter automotive components are produced to respond to global issue regarding energy. Lighter components can be achieved by replacing the material to those known as lighter material such as aluminium or applying thin wall casting technique. Lightweight automotive components will mean lower fuel consumption. Based on the success in making thin wall ductile iron plate (TWDI) with a thickness to 1 mm using a vertical casting, it encourages the implementation of the design to create lightweight automotive components. The design was applied to produce a thin wall two-cylinder engine ductile iron connecting rod which will be upgraded with austempering process. This connecting rod will be applied in Vespa PX150. The designs were simulated in Z-Cast simulation software and analyzed to determine the most optimum design. The chosen design was casted in a foundry to match the simulation. Evaluation of the characteristics will be run in the second stage of the research.
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