Depuis quelques années, les observations d’ovnis de forme triangulaire sont en nette augmentation. Parmi elles, les témoins décrivent de mystérieux « triangles noirs ». Suite à ces très nombreuses observations, des questions urgentes s’imposent à nous : D’où viennent ces engins ? Par qui sont-ils pilotés ? Quelles technologies utilisent-ils ? Pourquoi survolent-ils notre territoire avec insistance ? Quelles sont leurs intentions envers les populations ? Cette sorte de « surveillance » permanente obéit-elle à un plan, et si oui, lequel ? 

Machining for Hobbyists is for do-it-yourselfers and hobbyists who want to set up or expand a small machine shop in their garage, basement, shed or perhaps in a rented space. With their own shop, hobbyists can build models and undertake other building and maintenance projects that involve using different metals. Working in metal requires skills, knowledge, and equipment that are unlike other hobbies.  

This book is the third in the Woodhead Publishing Reviews: Mechanical Engineering Series, and includes high quality articles (full research articles, review articles and case studies) with a special emphasis on research and development in machining and machine-tools. Machining and machine tools is an important subject with application in several industries. 

A Complete Reference Covering the Latest Technology in Metal Cutting Tools, Processes, and Equipment

Metal Cutting Theory and Practice, Third Edition shapes the future of material removal in new and lasting ways. Centered on metallic work materials and traditional chip-forming cutting methods, the book provides a physical understanding of conventional and high-speed machining processes applied to metallic work pieces, and serves as a basis for effective process design and troubleshooting. 

Start a successful career in machining

Metalworking is an exciting field that's currently experiencing a shortage of qualified machinists—and there's no time like the present to capitalize on the recent surge in manufacturing and production opportunities. Covering everything from lathe operation to actual CNC programming, Machining For Dummies provides you with everything it takes to make a career for yourself as a skilled machinist.

The book series on manufacturing processes for engineers is a reference work for scientific and industrial experts. This volume on Turning, Milling and Drilling starts from the basic principles of machining with geometrically defined cutting edges based on a common active principle. 

Tool and Manufacturing Engineers' Handbook: Material and Part Handling in Manufacturing v. 9 Get the expert advise you need to shrink handling costs, reduce downtime and improve efficiency in plant operations! You'll use this comprehensive handbook during post design, process selection and planning, for establishing quality controls, tests, and measurements, to streamline production, and for managerial decision-making on capital investments and new automated systems.

This volume focuses on the practical application of processes for manufacturing plastic products. It includes information on design for manufacturability (DFM), material selection, process selection, dies, molds, and tooling, extrusion, injection molding, blow molding, thermoforming, lamination, rotational molding, casting, foam processing, compression and transfer molding, fiber reinforced processing, assembly and fabrication, quality, plant engineering and maintenance, management.