Screwcutting

‘Screwcutting’ is a guide to the theory and practice of threads and thrread-making, whether that is threading a hole using hand tools or cutting a thread using a lathe.The book covers: . The major threadforms, such as metric, Whitworth and Unified threads, as well as the British Association and Model Engineering series, the smaller metric and Unified threads, pipe threads, and specialist threads such as ACME, trapezoidal and RMS microscope. . Techniques for making threads manually, as well as screwcutting in the lathe . Choosing materials, tools, feeds and speeds . Methods of measuring to ensure creation of threads of the right-size and shape, to an appropriate tolerance to fit mating holes or fasteners As well as covering the basics of screwcutting, this book examines higher-level and advanced techniques, using case studies to demonstrate what can be achieved-fine, accurate and well-finished work. AUTHOR: Marcus Bowman has been machining metal for forty years, and programming since 1970. A lifelong maker of (among many other things) models, clocks and tool, he has made a wide range of threaded and screwcut items, from small nuts and bolts to specialists parts for industrial machines. This is his third book for Crowood; he has also written ‘CNC Milling in the Workshop and Sheet Metal Work’. 268 colour photographs