Refine Your Search

Topic

Author

Affiliation

Search Results

Book

The Practical Reference Guide for Corrosion of Welds - Causes and Cures

1999-01-01
Expert witness and AWS lecturer Ted V. Weber draws upon his lengthy experience as a materials troubleshooter for DuPont to present this succinct introduction to basic corrosion mechanisms. It includes pitting, intergranular corrosion, stress corrosion cracking, erosion, crevice and galvanic corrosion, and selective leaching. Full color digital photos illustrate the costly destruction caused by corrosion in welds. The author offers clear advice on how to avoid and correct corrosion, including alloying for resistance.
Book

Factory Man

2009-02-16
Factory Man is about James Harbour and the epic struggle of the U.S. auto industry to catch up to Japan in quality and productivity. Harbour is a former manufacturing executive who, partly by chance, became the first U.S. expert to study Toyota's operations in Japan. Harbour's consulting firm, Harbour & Associates has gained worldwide recognition for its annual public studies of factory productivity. The Harbour Report is the essential annual scorecard of who is winning the productivity race in the U.S. In 1981, Harbour reported that Toyota could offer a small car for sale in the U.S. at a production cost of $1,500-$1,700 less than the Detroit automakers at that time, a cost advantage of about 30 percent. The impact on Detroit was atomic, and launched the painful, historic effort by the Big Three to catch up, which continues today. James Harbour's story, blunt and accessible, includes a detailed description of how Detroit went astray, beginning right after World War II.
Book

Technology for Magnesium Castings

2011-01-01
The latest casting and processing technologies have raised the importance of magnesium in the transportation industry. As a structural material with low density and a very high strength-to-weight ratio, magnesium can reduce vehicle weight and, in turn, reduce greenhouse gas emissions and increase fuel economy. This book provides valuable information on: • melt control • process control • casting and solidification • heat treatment • materials selection • various casting processes The 18 chapter authors are world-class scientists, professors and engineers with countless years of industrial and laboratory experience. Each chapter was also reviewed by qualified metallurgists/materials engineers from the metalcasting industry, academia and research laboratories to ensure that only the highest quality information was accepted for publication.
Book

Welding Aluminum - Questions and Answers, 2nd Edition

2010-01-01
This practical guide to troubleshooting aluminum welding-related problems is based on real-life questions and answers from author Tony Anderson's long-running column in the Welding Journal. The 2nd edition of this book was produced in order to include additional sections that enhance the already comprehensive material that was included in the 1st edition.
Video

Career Counselor Series: Effective Communication

2017-09-19
Alyson Lyon, executive leadership coach, discusses the value of effective and efficient communication. SAE Members can view the full version by logging into the Member Connection. Not a Member? Join us today at sae.org/join.
Video

Goal Setting Strategies

2016-03-01
Alyson Lyon, Executive Leadership Coach, discusses how accurately defining goals leads to success. Members can view the full version by logging into the Member Connection here Not a Member? Get a taste of the Member Connection and join at connection.sae.org.
Video

Time Management Strategies

2016-03-01
Alyson Lyon, Executive Leadership Coach, explains how the most successful people manage their time. Members can view the full version by logging into the Member Connection here Not a Member? Get a taste of the Member Connection and join at connection.sae.org.
Technical Paper

Surface Treatments and Characterization of Electroplated and Hot Dip Galvanized Steel Sheets

1996-04-01
91A126
Protection of surfaces is a critical factor in determining the extended service life of a structure in polluted and aggressive environments. In particular, a rapid growth of the technology for the protecting coating of cold rolled steel is experienced, for the use in transport, electric housewares, building and industrial plants. Numerous changes have taken place in the production of zinc coatings on steel in order to improve the corrosion resistance using zinc alloy platings. Our research group collected from the international production a number of selected galvanized steel samples, including electrodeposited zinc alloys, multilayer coatings, hot dip galvanized steels. On the selected materials we established and analyzed morphology, composition, crystal structure, impurity content and distribution, using many surface microanalysis techniques.
Technical Paper

Application of Shape Memory Heat Engines to Improving Vehicle Fuel Economy

1996-04-01
91A128
Shape memory materials undergo temperature-induced martensitic phase transformations that involve reversible dimensional changes. In performing these changes in shape, the shape-memory material is able to do work against external constraints, and this is the basis for shape-memory low-temperature heat engines. The transformation temperatures on heating and cooling are often not very different (little hysteresis) and are well defined and reproducible. Furthermore, these temperatures can be adjusted by varying the composition of the shape memory alloy. Internal combustion engines dissipate approximately two-thirds of the fuel energy as heat to the exhaust and coolant systems. A low-temperature heat engine could convert a fraction of this heat energy to useful work. This paper discusses the conceptual basis for the application of shape memory heat engines to internal combustion engine powered vehicles. Metallurgical and thermodynamic factors are discussed, as well as engine efficiency.
Technical Paper

State of the Art in the Use of Stainless Steel for Bus and Car Parts Manufacture

1996-04-01
91A127
The paper describes recent developments in the use of stainless steel to make the parts of buses which are most liable to corrosion. Sheet metal is used for the outer panelling, and square and rectangular tubes for the body. The types of steel used and their fabrication are analyzed. Finally, a brief description is given of the stainless steels used to make car exhaust systems.
Technical Paper

The Modeling of Mold Filling in Structural Reaction Injection Molding

1996-04-01
91A118
The main use of FRC in automobiles, with the exception of a few specialized low volume vehicles, has been until now in semistructural parts. One of the most promising process in development today, that may play major role in future structural composite fabrication, is based on SRIM technology. The rapid and extensive introduction of this process goes also through the development of deeper theoretical knowledge of the process and the development of computer simulation to aid mold design and choice of proper processing parameters. To contribute SRIM advancement, a preliminary model has been developed for viscosity changes, extent of the reaction and temperature rises, associated with the mold filling stage, as well as a simple software to evaluate the pressure drop through different combinations of reinforcements.
Technical Paper

Simulors, An Innovative Tool for Molds Development

1996-04-01
91A117
Mold designers and foundrymen spend a lot of time in developing molds without knowing exactly the phenomena which take place inside. Simulor, which has been used in an industrial environment for two years, offers the solution to make foundrymen understand what happens during the filling of the mold and the solidification of the part. Based on navier-stokes and heat transfer equations, simulor provides speed distribution and metal front evolution in the cavity and thermal map in the mold and the part. Some examples with different metals (cast iron, aluminum alloy) cast with various processes (sand or die casting, low pressure or gravity casting) will be given. This new tool will given foundrymen the opportunity to test the mold before having it machined and will also allow reduction in development delays.
Technical Paper

Integration and Validation of Sheet Metal Forming Simulation Computer Programs Into the Design Process

1996-04-01
91A121
In order to improve the design of drawn parts and to reduce the number of trial and error tests, Renault has undertaken the development and the validation of various finite element procedures and codes. This paper describes the function of each software and its level of integration into the design process. One of them is already an operational tool used be planners whilst the others are still in the validation phase. Selected examples show typical applications of the computer programs on automotive parts.
Technical Paper

Particulate Reinforced Aluminum Matrix Composites Obtained By Indirect Squeeze-Casting

1996-04-01
91A115
Indirect squeeze casting technology is one of the most attractive fabrication techniques of near net shape components constituted by aluminum matrix composite (AMC) materials. AMCs reinforced with both continuous and discontinuous ceramic elements have been mainly produced by infiltration of porous preforms. Nevertheless, a further promising production route offered by this technique is given by the possibility to employ ingots of pre-reinforced aluminum alloys containing ceramic particles (silicon carbide or alumina); ingots are remelted and, under suitable operative conditions, high quality composite castings of simple and complex shape are produced by squeeze casting. The present paper describes the results of an extensive experimental work carried out by Alures-Centro Tecnico Porcessi on a pilot plant scale employing a vertical squeeze casting machine with a clamping force of 315 tons.
Technical Paper

Glass Reinforced Thermoplastic Composites: Effects of Ribs and Different Types of Reinforcement on the Characteristics of the Molded Part

1996-04-01
91A119
Compression molding of thermoplastic sheets, consolidated or non- consolidated, reinforced with glass fibers (GMT, GRT) is applied as an economic production process in the automotive industry. The aim of this work is to evaluate how the physical and mechanical strength characteristics depend on the presence or absence of ribs and how component performance may be changed by modifying the molding parameters, altering the content and orientation of the reinforcement fibers in the ribbed areas. For this purpose, two statistical designs will be considered, the first carried out on a box type component without ribs, the second on the same component with a set of internal ribs. Two different materials with a PP matrix will be tested, a GMT reinforced with continuous random glass fibers and a 12 mm random glass fibers composite.
Technical Paper

Thermomechanical Behavior and Wear Resistance of Whisker Or Particle Reinforced Ceramics

1996-04-01
91A107
Ceramic composite materials have been intensively studied during the last years. Particles and whisker reinforcement have shown the simultaneous advantage to allow the preparation of composite materials by conventional processing and to lead, when under optimum conditions, to dramatic toughening and strengthening. Since wear resistance of brittle material have been shown to be related to both hardness and toughness, composite materials with improved were resistance have been developed for cutting tools or bearing applications. However the mechanism responsible for toughening is of major important for wear resistance effectiveness. We have therefore reviewed the main mechanisms before presenting some examples of composites materials for wear resistance applications.
Technical Paper

Manufacture of Automotive Components By Semi-Liquid Forming Process

1996-04-01
91A113
Semi-liquid forming process, applied to pressure die-casting, permits to obtain low cost components with high qualitative characteristics and adequate mechanical performances. The technology is based on the employment of material with globular microstructure (flow-cast alloys) obtained subjecting a metal alloy at the time of solidification to an elevated shear rate. Such microstructure permits the accomplishment of conventional forming processes at temperatures in solidification range. The particular fluid-dynamic properties of the semi-liquid slurry and the lower injection temperature allow to obtain casting with improved soundness, without need of impregnation, and to extend die life. The present work describes the Weber (Magneti Marelli) activity of the process industrialization and some applications for the manufacture of automotive components.
Technical Paper

Evaluation of Advanced Aluminum Alloys and Mmc Obtained By Means of a Spray Depositon Approach

1996-04-01
91A112
The paper review some recent efforts, made by the aluminum industry, towards the development of new advanced alloys for aerospace applications; unconventional production technologies and MMC occupy an outstanding position in this context. Raid solidification processes are currently used for obtaining advanced alloys and, among them, the powder metallurgy route is one of the most commonly applied, since it has reached a considerable level of maturity. Experimental results of PM materials are shown and discussed in order to appreciate the potentialities of this class of materials and some recent further progress is shown: the spray deposition approach (osprey process). After having described the main features of the osprey process, some results obtained at the Department of Aerospace Engineering of Pisa about the development of high strength Al-alloy and MMC obtained by means of the osprey process are shown.
X