Rubber Pad Forming Processes

Author: Maziar Ramezani
Publisher: Elsevier
ISBN: 0857095498
Format: PDF, Mobi
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This book describes different types of rubber-pad forming processes currently being studied for their experimental and numerical advantages and disadvantages. Rubber forming adopts a rubber pad contained in a rigid box in which one of the tools (die or punch) is replaced by the rubber pad. Up to 60% of all sheet metal parts in aircraft industry such as frames, seat parts, ribs, windows and doors are fabricated using rubber-pad forming processes. Key process parameters such as rubber material, stamping velocity, rubber-pad hardness and thickness and friction conditions are investigated. The potential role of rubber as a flexible punch in metal working processes is to give insight to engineers about different parts that can be produced using this process The procedure of suitable die design for each process is presented in detail Full defect analysis is undertaken with a thorough report presented to optimize rubber-pad forming processes

Experimental Investigation of Fracture in Rubber Pad Forming of Bipolar Plate s Micro Channels

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Abstract: Metallic bipolar plates are the most important part of proton exchange membrane fuel cell (PEMFC). In order to manufacturing of these plates, various method such as Hydroforming, electromagnet forming and stamping have been used. In this study rubber pad forming process was selected in order to forming metallic bipolar plates with stainless steel 316. At first effect of punch load, thickness and hardness of rubber on channel depth (before fracture) were investigated in order to determinate the maximum channel depth before fracture. After that, a novel method was developed by machining the rubber pad in order to prevent from fracture and increase in channel depth. According to the result, increase in hardness of rubber lead to decrease in channel depth and increase in applied force and thickness of rubber lead to increase in channel depth. Maximum filling percentage (before fracture) in rubber pad forming process was 76% achieved by Shore A 40 rubber pad with thickness of 30 mm and maximum thinning percentage before fracture is about 30%. Using new method was successful to prevent from fracture and formability has been increased by machining the rubber pad. As a result, the filling percentage for bipolar plate increased to 88%.

Handbook of Metalforming Processes

Author: Henry Ericsson Theis
Publisher: CRC Press
ISBN: 9780824793173
Format: PDF, ePub
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Reflecting hands-on experience of materials, equipment, tooling and processes used in the industry, this work provides up-to-date information on flat-rolled sheet metal products. It addresses the processing and forming of light-to-medium-gauge flat-rolled sheet metal, illustrating the versatility and myriad uses of this material.

Aluminum and Aluminum Alloys

Author: Joseph R. Davis
Publisher: ASM International
ISBN: 9780871704962
Format: PDF, Kindle
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This one-stop reference is a tremendous value and time saver for engineers, designers and researchers. Emerging technologies, including aluminum metal-matrix composites, are combined with all the essential aluminum information from the ASM Handbook series (with updated statistical information).

International Advanced Researches Engineering Congress 2017 Proceeding Book

Author: Recep HALICIOGLU
Publisher: Dr. R. HALICIOGLU
ISBN: 6052450371
Format: PDF, ePub, Docs
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INTERNATIONAL WORKSHOPS (at IAREC'17) (This book inclueds English (main) and Turkish languages) International Workshop on Mechanical Engineering International Workshop on Mechatronics Engineering International Workshop on Energy Systems Engineering International Workshop on Automotive Engineering and Aerospace Engineering International Workshop on Material Engineering International Workshop on Manufacturing Engineering International Workshop on Physics Engineering International Workshop on Electrical and Electronics Engineering International Workshop on Computer Engineering and Software Engineering International Workshop on Chemical Engineering International Workshop on Textile Engineering International Workshop on Architecture International Workshop on Civil Engineering International Workshop on Geomatics Engineering International Workshop on Industrial Engineering International Workshop on Food Engineering International Workshop on Aquaculture Engineering International Workshop on Agriculture Engineering International Workshop on Mathematics Engineering International Workshop on Bioengineering Engineering International Workshop on Biomedical Engineering International Workshop on Genetic Engineering International Workshop on Environmental Engineering International Workshop on Other Engineering Science

Metal Shaping Processes

Author: Vukota Boljanovic
Publisher: Industrial Press Inc.
ISBN: 9780831133801
Format: PDF, ePub, Docs
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As the only comprehensive text focusing on metal shaping processes, which are still the most widely used processes in the manufacture of products and structures, Metal Shaping Processes carefully presents the fundamentals of metal shaping processes with their relevant applications. The treatment of the subject matter is adequately descriptive for those unfamiliar with the various processes and yet is sufficiently analytical for an introductory academic course in manufacturing. The text, as well as the numerous formulas and illustrations in each chapter, clearly show that shaping processes, as a part of manufacturing engineering, are a complex and interdisciplinary subject. The topics are organized and presented in such a manner that they motivate and challenge students to present technically and economically viable solutions to a wide variety of questions and problems, including product design. It is the perfect textbook for students in mechanical, industrial, and manufacturing engineering programs at both the Associate Degree and Bachelor Degree programs, as well a valuable reference for manufacturing engineers (those who design, execute and maintain the equipment and tools); process engineers (those who plan and engineer the manufacturing steps, equipment, and tooling needed in production); manufacturing managers and supervisors; product design engineers; and maintenance and reliability managers and technicians. Each chapter begins with a brief highlighted outline of the topics to be described. Carefully presents the fundamentals of the particular metal-shaping process with its relevant applications within each chapter, so that the student and teacher can clearly assess the capabilities, limitation, and potentials of the process and its competitive aspects. Features sections on product design considerations, which present guidelines on design for manufacturing in many of the chapters. Offers practical, understandable explanations, even for complex processes. Includes text entries that are coded as in an outline, with these numerical designations carried over the 320 related illustrations for easy cross-referencing. Provides a dual (ISO and USA) unit system. Contains end-of-chapter Review Questions. Includes a chapter on sheet metalworking covering cutting processes; bending process; tubes and pipe bending; deep drawing processes; other sheet metal forming process (stretch forming, spinning, rubber forming, and superplatic forming and diffusion bonding). Provides a useful die classification with 15 illustrations and description; presses for sheet metalworking; and high energy-rate forming processes. A chapter on nontraditional manufacturing process discusses such important processes as mechanical energy processes (ultrasonic machining, water jet cutting); electrochemical machining processes (electrochemical machining, electrochemical grinding); thermal energy processes (electric discharge processes, laser beam machining, electron beam machining); and chemical processes (chemical milling).

Metal Forming and the Finite Element Method

Author: the late Shiro Kobayashi
Publisher: Oxford University Press
ISBN: 9780195364576
Format: PDF, ePub, Docs
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The application of computer-aided design and manufacturing techniques is becoming essential in modern metal-forming technology. Thus process modeling for the determination of deformation mechanics has been a major concern in research . In light of these developments, the finite element method--a technique by which an object is decomposed into pieces and treated as isolated, interacting sections--has steadily assumed increased importance. This volume addresses advances in modern metal-forming technology, computer-aided design and engineering, and the finite element method.

Mechanical Tribology

Author: George E. Totten
Publisher: CRC Press
ISBN: 9780203970911
Format: PDF, Mobi
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Studying the morphology, defects, and wear behavior of a variety of material surfaces, Mechanical Tribology examines popular and emerging surface characterization techniques for assessment of the physical, mechanical, and chemical properties of various modified surfaces, thin films, and coatings. Its chapters explore a wide range of tribological applications while promoting reduced component deterioration and improved efficiency and reliability of mechanical systems. The book includes extensive coverage of critical technologies that are usually absent in other references on the subject, delving into procedures affecting metal cutting and forming, physicochemical issues involved in the design of fiber finishes, and recent progress in biotribological research. It provides strategies to characterize the friction and wear properties of tribological systems and procedures to assess the quality and lifetime of ceramic materials. It also outlines methods to avoid scuffing and seizure in machine operations and novel techniques to prevent oil from spreading and creeping in lubricating applications. Mechanical Tribology is a practical guide for mechanical, industrial, chemical, process, design, and process engineers, materials scientists, and tribologists in the selection of materials, surface treatments, coatings, and environments best suited for a particular industrial application.

Handbuch Verbundwerkstoffe

Author: Manfred Neitzel
Publisher: Carl Hanser Verlag GmbH Co KG
ISBN: 3446436979
Format: PDF, Mobi
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Das umfassende Handbuch über Faserverbundwerkstoffe mit polymerer Matrix: Verbundwerkstoffe und insbesondere die faserverstärkten Polymere haben sich zu einer eigenständigen Werkstoffgruppe entwickelt und die Nische eines exklusiven Hochleistungswerkstoffs verlassen. Neue Anwendungen sind imageprägend und zeigen eine eindeutige Richtung hin zu konsequenten Leichtbautechnologien in größeren Stückzahlen. Dies und einige wichtige Neuentwicklungen zur Herstellung von Faser-Kunststoff-Verbunden machten die Überarbeitung und Aktualisierung dieses Standardwerks erforderlich. -Neue Prozessentwicklungen wurden insbesondere dann berücksichtigt wenn diese ein hohes Umsetzungspotential aufweisen und eine industrielle Einführung absehbar ist. -Die Schnittstellen der Verarbeitungstechnik zu den eingesetzten Materialien und Bauweisen werden besprochen. -Der Überblick aller modernen Verfahren wird ergänzt durch die physikalisch-chemischen Grundlagen und die Darstellung der Entwicklungstendenzen unter den Aspekten der Wirtschaftlichkeit und Nachhaltigkeit. -Auf die simultane Zusammenarbeit zwischen Konstruktion und Fertigung in der Entwicklung für eine werkstoffgerechte und wirtschaftliche Produktion wird besonders eingegangen. -Die etablierten Verarbeitungsprozesse, deren werkstoffliche und prozesstechnischen Grundlagen, die Verfahrensbeschreibung und ein starker Praxisbezug stehen im Fokus. -Konzipiert als Handbuch und Nachschlagewerk für den Ingenieur. -Die Herausgeber und Fachautoren verfügen über langjährige Praxiserfahrung und sind auf dem Stand der aktuellsten Forschung.