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strength of material

Nanotechnology: The Plastics of the 21st Century?.pdf

November 10, 2009 · Filed Under Engineering Physic · Comment  · Tags: ,

Taken from Preface: This report was prepared by Guy Carpenter & Company, Inc. in conjunction with Dr. Robert Blaunstein, National Director of Loss Control and Underwriting Manager for American Safety Insurance Company. Previously, Dr. Blaunstein was Managing Director and co-founder of Seneca Environmental Management (SEM), Vice President of Seneca Specialty Company and Vice President of Crum and Forster Specialty Insurance Company. While Assistant Professor of Physics at the University of Tennessee and consulting scientist to the Oak Ridge National Laboratory, Dr. Blaunstein conducted research, provided instruction and supervised doctoral students in the area of atomic and molecular radiation physics. A frequent lecturer and consultant to governmental and industrial leaders throughout the world, Dr. Blaunstein was a Public Health Service Fellow and member of the United States Chamber of Commerce, Environment Committee and is a member of the American Physical Society, The American Society of Testing and Materials, National Groundwater Association and the Sigma Xi Honorary Society. He received his Ph.D. in physics from the University of Tennessee and an M.S. degree in physics from Case Western Reserve University.

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Fundamentals of Die Casting Design.pdf

November 7, 2009 · Filed Under Mechanical & Industrial Engineering · Comment  · Tags: , , , ,

Taken from Abstract: Die-casting engineers have to compete not only with other die-casting companies, but also against other industries such as plastics, and composite materials. Clearly, the ”black art” approach, which has been an inseparable part of the engineer’s tools, is in need of being replaced by a scientific approach. Excuses that “science has not and never will work” need to be replaced with “science does work”. All technologies developed in recent years are described in a clear, simple manner in this book. All the errors of the old models and the violations of physical laws are shown. For example, the “common” pQ2 diagram violates many physical laws, such as the first and second laws of thermodynamics. Furthermore, the “common” pQ2 diagram produces trends that are the opposite of reality, which are described in this book.
The die casting engineer’s job is to produce maximum profits for the company.
In order to achieve this aim, the engineer must design high quality products at a minimum cost. Thus, understanding the economics of the die casting design and process are essential. These are described in mathematical form for the first time in this volume. Many new concepts and ideas are also introduced. For instance, how to minimize the scrap/cost due to the runner system, and what size of die casting machine is appropriate for a specific project.
The die-casting industry is undergoing a revolution, and this book is part of it. One reason (if one reason can describe the situation) companies such as Doehler Jorvis (the biggest die caster in the world) and Shelby are going bankrupt is that they do not know how to calculate and reduce their production costs. It is my hope that die-casters will turn such situations around by using the technologies presented in this book. I believe this is the only way to keep the die casting professionals and the industry itself, from being “left in the dust.”

Vanquish S V12 - The Ultimate Aston Martin.pdf

August 28, 2009 · Filed Under Aston Martin · Comment  · Tags: ,

Taken from Aston Martin VANQUISH S V12 is the Flagship of the World’s Most Exclusive Sport Car Maker: In 1914, the founders of Aston Martin, Lionel Martin and Robert Bamford, began building handcrafted, highperformance sports cars. They believed sports cars should have a distinctive and individual character, be built to the highest standards and be exhilarating to drive and own. More than 90 years later these values remain true today.
Aston Martin has earned a reputation for another speciality: building lifelong one-to-one relationships with each of its cars and with every owner. This is due to meticulous records and archives, plus personal attention from experts at the factory.
The Vanquish S effortlessly combines 21st Century technology and 200mph (321 km/h) performance, with understated elegance and craftsmanship.
To build such an extraordinary car, the company has used British expertise in aerospace and race-car engineering. Conventional automotive industry materials and manufacturing techniques were not good enough for the fastest road car in Aston Martin’s history

Toyota Collision Repair Information - Welding High Strength Steel (H.S.S.).pdf

August 21, 2009 · Filed Under Toyota · Comment  · Tags: , , , ,

Taken from REPAIR GUIDELINES
H.S.S. and ordinary steel parts in Toyota vehicles are welded using the same methods. The following precautions apply:
Use either spot welding or MIG/MAG (shield gas) welding. MIG/MAG (shield gas) welding should only be done by an experienced body shop person.
Only braze body components previously brazed at the factory and as indicated in the Toyota Repair Manual for Collision Damage.
Do not use an oxy–acetylene torch for fusion welding auto bodies. The large heat affected zone may destroy galvanized coatings and cause excessive panel distortions. In addition, an oxy–acetylene torch will reduce the strength and increase the brittleness of H.S.S.

U.S. NAVY Underwater Cutting & Welding Manual (S0300-BB-MAN-010).pdf

August 20, 2009 · Filed Under Mechanical & Industrial Engineering · Comment  · Tags: , , ,

List of figures: [ Underwater Oxygen-Arc Cutting Electrodes ~ Underwater Oxygen-Arc Electrode Designs ~ Drag Techniques for Cutting Steel with Steel-Tubular Electrodes ~ Technique for Cutting Steel Less Than 1/4 Inch with Steel-Tubular Electrodes ~ Technique for Piercing Holes in Steel Plate using the Oxy-Arc Process with Steel Tubular Electrodes ~ Underwater Oxygen-Arc Cutting Torch Breakdown (Arcair) ~ Underwater Oxygen-Arc Cutting Torch Breakdown (BROCO) ~ Underwater Oxygen-Arc Cutting Torch Breakdown (Craftsweld) ~ Technique for Cutting Steel Using Exothermic Electrode ~ Seeler Kerie Cable Control Panel ~ Typical Kerie Cable Set Up ~ Technique for Underwater Shielded Metal-Arc Cutting of Thick Plate and Round Stock ~ Test Specimen for Tee Fillet Weld ~ The Underwater Welding Arc ~ Parts of a Weld ~ Self-Consuming Technique for Underwater Shielded Metal Arc Welding of Horizontal Fillet Welds ~ Self-Consuming Technique for Underwater Shielded Metal Arc Welding of Vertical Fillet Welds ~ Technique for Underwater Shielded Metal Arc Welding of Overhead Fillet Welds ~ Feeding-In Technique for Underwater Shielded Metal Arc Welding of Fillet Welds in Wide-Gap Joints ~ Repair Method for Cracks in Underwater Structures Using a Rectangular Patch ~ Repair Methods for Cracks in Underwater Structures Using a Circular Patch ~ A Typical Underwater Welding Electrode Holder ~ Typical Arrangement of Underwater Arc Cutting Equipment ~ MK12 SSDS Welding Shield ~ MK1, MOD 0 Mask and Lens Holder Assembly ~ Superlite-17B/NS Helmet and Lens Holder Assembly ~ MK 12 Helmet Lens Holder Assembly with Parts Identification ~ Superlite-17B/NS Welding Lens Holder with Parts Identification ~ Typical Welding Generator and Power-Converter Control Panel ~ Equipment Arrangement for Welding and Cutting Straight Polarity ~ Tong Test Ammeter ~ Voltage Drop in Welding Cables ~ Arcwater Torch Assembly ~ Thermic Lance Holder Assembly ~ Standard Thermic Lance Equipment Set Up ~ Standard Surface Cutting Torch with Underwater Spacer Sleeve ~ Starting the Cut at the Edge of a Plate ~ Starting a Cut in the Central Portion of a Plate ~ Restarting the Cut ~ Friction Stud Welder ]




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