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The Mechanics of Threaded Fasteners and Bolted Joints outlines how threaded fasteners and bolted joints fail, how these failures can be remedied, and ultimately how to avoid them altogether through tightening methods, material strength, and avoiding loosening. The book demonstrates how to select the appropriate tightening method and determine the optimal tightening procedure for varying nominal diameters. Using the finite element method, it discusses characteristics of stress concentration and fatigue strength and covers bolt force variation due to elastic interaction. The separation of the plate interface via increased external force as the primary cause of fatigue failure in threaded fasteners is discussed, with effective countermeasures provided. Empirical equations of thermal contact coefficient and apparent thermal contact coefficient in simple form are included as well. - Outlines various tightening methods such as torque control, angle control, direct tension, and thermal expansion - Demonstrates methods for preventing fatigue failure - Discusses the effect of high and low temperature thermal loads on the strength of bolted joints by looking at thermal contact resistance at the interface

Gain a Deeper Understanding of Mechanical Fastening: Assemble More Efficient and Competitive ProductsA good design, quality parts, and properly executed assembly procedures and processes result in well-fastened assemblies. Utilizing a combined knowledge of mechanical assembly engineering and fastening technology, Mechanical Fastening, Joining, and Assembly, Second Edition provides readers with a solid understanding of mechanical fastening, joining, and assembly information. Based on the author's experience in the field, this updated mechanical arts guide and reference chronicles the technical progress since the first edition was published more than a decade ago. Provides Case Studies Showing Real-World Applications for Commonly Used AssembliesThe second edition addresses recent trends in the industry, and looks at new fastening technologies used in aerospace, automotive, and other key areas. It explains the fastening function in depth, and describes the types of fastening approaches that can be used effectively. The revised text expands on the presentation and review of fastened components, detailing the assembly, design, manufacturing, and installation of fastener products and procedures. It covers specific joining applications, including vibration, standard, and special materials; details environmental factors; and provides useful reference charts for future use. What's New in the Second Edition: Provides an up-to-date selection of technologies Contains practical approaches to modern fastener technology Reviews engineering fundamentals with a focus on their application in the fastener industry Includes a section on fastener statics Expands on fastener manufacturing processes, most specifically cold heading and roll threading Adds fastener dynamics to draw attention to forces in motion (wind turbine hub turning in strong winds) and fastener strength of materials Extends review of the economics of fastening and provides some tools for engineering economics Examines the difference in static and dynamic strengths Considers fastener materials in this new century, provides some observations about the fastener laboratory, and discusses electrical theory Addresses sustainability, application product management, thermodynamics, energy systems, and new thought maps for application analysis Takes a look at a favorite application, D&D 100, and more Mechanical Fastening, Joining, and Assembly, Second Edition is accessible to novices and experienced technologists and engineers, and covers the latest in fastener technology and assembly training.

Modern aircraft manufacturing involves drilling and countersinking hundreds of thousands to millions of holes. Doing this work by hand accounts for 65% of the cost of airframe assembly, 85% of the quality issues, and 80% of the lost time due to injuries. Automated drilling and countersinking replaces traditional hand methods and involves using numeric control machinery to drill and countersink a finished hole “one shot” (drilling a finished hole without using pilot holes or tool changes). This is a proven cost reducing technology that improves quality where it has been applied successfully. The focus of this book is on automating the process of drilling and countersinking holes during airframe manufacturing. Since this is the area of greatest return on investment for airframe producers, the book provides a stepped approach for evaluating possible areas for applying automation and a detailed description of the process for choosing, acquiring, and transitioning the right machinery for success. It also provides a vision for a 10- to 15-year future state of airframe manufacture. Readers will use the information to: • Understand the evolution of automated/mechanized drilling and countersinking airframes. • Access decision models and matrices to help evaluate the feasibility of applying automation/mechanization to any airframe. • Gain access to a step-by-step procedure to select the right piece of machinery. • Learn the necessary processes for testing and transitioning machinery to production. • Assess and acquire data to evaluate the effect of the process. • Choose and train the right individuals to manage and run the machinery. • Conduct cost benefit analysis models. • Make recommendations for maintenance and spares. • Address socio-economic factors to reconfigure a facility from hand to automated activities. No other book provides such detailed technical, economic, and social information about automating the single largest contributor to airframe cost.

What do you use every day that is small and large, worthless and beyond price? It's easily found in the gutter, yet you may never be able to replace it. You are always losing it but it faithfully protects you; sexy and uptight, it is knitted in to your affections or it may give you nightmares. It has led to conflict, fostered and repressed political and religious change and epitomizes the great aesthetic movements. It's Eurocentric, and is found all over the world. On the Button is an inventive and unusual exploration of the cultural history of the button, illustrated with a multiplicity of buttons in black and white and colour. It tells tales of a huge variety of the button's forms and functions, its sometimes uncompromising glamour, its stronghold in fashion and literature, its place in the visual arts, its association with crime and death, its tender call to nostalgia and the sentimental. There have been works addressed to the button collector and general cultural histories. On the Button links the two, revealing why we are so attracted to buttons, and how they punch way above their weight.

A comprehensive treatment of current fastening technology using inserts (anchor channels, headed stud), anchors (metal expansion anchor, undercut anchor, bonded anchor, concrete screw and plastic anchor) as well as power actuated fasteners in concrete. It describes in detail the fastening elements as well as their effects and load-bearing capacities in cracked and non-cracked concrete. It further focuses on corrosion behaviour, fire resistance and characteristics with earthquakes and shocks. It finishes off with the design of fastenings according to the European Technical Approval Guideline (ETAG 001), the Final Draft of the CEN Technical Specification'Design of fastenings for use in concrete'and the American Standards ACI 318-05, Appendix D and ACI 349-01, Appendix B.

Joining of Materials and Structures is the first and only complete and highly readable treatment of the options for joining conventional materials and the structures they comprise in conventional and unconventional ways, and for joining emerging materials and structures in novel ways. Joining by mechanical fasteners, integral designed-or formed-in features, adhesives, welding, brazing, soldering, thermal spraying, and hybrid processes are addressed as processes and technologies, as are issues associated with the joining of metals, ceramics (including cement and concrete) glass, plastics, and composites (including wood), as well as, for the first time anywhere, living tissue. While focused on materials issues, issues related to joint design, production processing, quality assurance, process economics, and joint performance in service are not ignored. The book is written for engineers, from an in-training student to a seasoned practitioner by an engineer who chose to teach after years of practice. By reading and referring to this book, the solutions to joining problems will be within one's grasp.Key Features:·Unprecedented coverage of all joining options (from lashings to lasers) in 10 chapters·Uniquely complete coverage of all materials, including living tissues, in 6 chapters·Richly illustrated with 76 photographs and 233 illustrations or plots·Practice Questions and Problems for use as a text of for reviewing to aid for comprehension• Coverage all of major joining technologies, including welding, soldering, brazing, adhesive and cement bonding, pressure fusion, riveting, bolting, snap-fits, and more• Organized by both joining techniques and materials types, including metals, non-metals, ceramics and glasses, composites, biomaterials, and living tissue• An ideal reference for design engineers, students, package and product designers, manufacturers, machinists, materials scientists

This valuable reference presents a considerable body of materials knowledge distilled from the leading industrial institutions'practical experience in developing and improving threaded fasteners, introducing engineers to the selection, procurement and quality control of fasteners. It gives elementary design formulas for fastener sizing, properties and sample calculations. Illustrated with tables and drawings, this volume is an important reference for any mechancial, design, manufacturing, automotive and aerospace engineers, technologists and technicians; fastener manufacturers and sales personnel, under graduate-level coureses in manufacturing and mechanical engineering and industry in-house training courses in fastener design and manufacture.