Download or read book Engraving of Rotating Bands A Modification of Metal Flow Pattern written by and published by . This book was released on 1983 with total page 38 pages. Available in PDF, EPUB and Kindle. Book excerpt: An evaluation of the commencement -of-rifling (C.O.R.) geometry suggests that the mode of deformation of the rotating band by the rifling is inefficient. Observation of rotating bands of fired and retrieved projectiles confirms the above evaluation. Engravers, simulating the conventional design of C.O.R. as well as the proposed modification, were fabricated. Slugs of rotating band material were engraved with the simulated engravers. Metallographic data on the laboratory engraved slugs were compared with those of retrieved projectiles; results from the two simulating designs were also compared. Similarities were found between retrieved bands and simulated conventional design, while the simulated modification resulted in change in metal-flow pattern close to the intended one. Reduced engraving forces were observed as predicted and can be explained by reduced deformation forces when the modified design of C.O.R. is being simulated. It is suggested that reduced deformation forces will reduce wear at the commencement-of-rifling.
Download or read book 15th NAMRC written by and published by . This book was released on 1987 with total page 712 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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Download or read book Interference Problems on Wing fuselage Combinations in Inviscid Incompressible Flow written by Aeronautical Research Council (Great Britain) and published by . This book was released on 1974 with total page 1212 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Government Reports Annual Index written by and published by . This book was released on 1983 with total page 1178 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Bulletin of the Atomic Scientists written by and published by . This book was released on 1961-05 with total page 88 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Bulletin of the Atomic Scientists is the premier public resource on scientific and technological developments that impact global security. Founded by Manhattan Project Scientists, the Bulletin's iconic "Doomsday Clock" stimulates solutions for a safer world.
Download or read book Field Artillery Manual Cannon Gunnery written by Department of the Army and published by . This book was released on 2017-08-19 with total page 664 pages. Available in PDF, EPUB and Kindle. Book excerpt: Training Circular (TC) 3-09.81, "Field Artillery Manual Cannon Gunnery," sets forth the doctrine pertaining to the employment of artillery fires. It explains all aspects of the manual cannon gunnery problem and presents a practical application of the science of ballistics. It includes step-by-step instructions for manually solving the gunnery problem which can be applied within the framework of decisive action or unified land operations. It is applicable to any Army personnel at the battalion or battery responsible to delivered field artillery fires. The principal audience for ATP 3-09.42 is all members of the Profession of Arms. This includes field artillery Soldiers and combined arms chain of command field and company grade officers, middle-grade and senior noncommissioned officers (NCO), and battalion and squadron command groups and staffs. This manual also provides guidance for division and corps leaders and staffs in training for and employment of the BCT in decisive action. This publication may also be used by other Army organizations to assist in their planning for support of battalions. This manual builds on the collective knowledge and experience gained through recent operations, numerous exercises, and the deliberate process of informed reasoning. It is rooted in time-tested principles and fundamentals, while accommodating new technologies and diverse threats to national security.
Download or read book CRC Handbook of Metal Etchants written by Perrin Walker and published by CRC Press. This book was released on 1990-12-11 with total page 1434 pages. Available in PDF, EPUB and Kindle. Book excerpt: This publication presents cleaning and etching solutions, their applications, and results on inorganic materials. It is a comprehensive collection of etching and cleaning solutions in a single source. Chemical formulas are presented in one of three standard formats - general, electrolytic or ionized gas formats - to insure inclusion of all necessary operational data as shown in references that accompany each numbered formula. The book describes other applications of specific solutions, including their use on other metals or metallic compounds. Physical properties, association of natural and man-made minerals, and materials are shown in relationship to crystal structure, special processing techniques and solid state devices and assemblies fabricated. This publication also presents a number of organic materials which are widely used in handling and general processing...waxes, plastics, and lacquers for example. It is useful to individuals involved in study, development, and processing of metals and metallic compounds. It is invaluable for readers from the college level to industrial R & D and full-scale device fabrication, testing and sales. Scientific disciplines, work areas and individuals with great interest include: chemistry, physics, metallurgy, geology, solid state, ceramic and glass, research libraries, individuals dealing with chemical processing of inorganic materials, societies and schools.
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Download or read book ASM Metals Reference Book 3rd Edition written by Michael Bauccio and published by ASM International. This book was released on 1993-01-01 with total page 628 pages. Available in PDF, EPUB and Kindle. Book excerpt: This reference book makes it easy for anyone involved in materials selection, or in the design and manufacture of metallic structural components to quickly screen materials for a particular application. Information on practically all ferrous and nonferrous metals including powder metals is presented in tabular form for easy review and comparison between different materials. Included are chemical compositions, physical and mechanical properties, manufacturing processes, applications, pertinent specifications and standards, and test methods. Contents Overview: Glossary of metallurgical terms Selection of structural materials (specifications and standards, life cycle and failure modes, materials properties and design, and properties and applications) Physical data on the elements and alloys Testing and inspection Chemical composition and processing characteristics
Download or read book The Mechanics Magazine and Journal of Engineering Agricultural Machinery Manufactures and Shipbuilding written by and published by . This book was released on 1859 with total page 660 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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Download or read book English Mechanic and Mirror of Science and Art written by and published by . This book was released on 1881 with total page 654 pages. Available in PDF, EPUB and Kindle. Book excerpt:
