1. SAWS• Basically a saw drags a number of cutting teeth through work to cut a thin slot. When done, two major piece can be separated. • The basic saw blade look like, Circular saws - use round blades rotated at high speeds. Band saw - a band is in one continuous loop-, like a ribbon. Hack saw - a small blade much like a steel ruler. This is moved back and forth (it reciprocates) to provide the cutting action. Cutoff - one smaller piece of stock is cut from a larger one. Contouring - a bandsaw is used to cut a non-straight path in an object, often this step precedes other machining operations, such as drilling. Stack Cutting - multiple pieces are cut at the same time. Shaping - Chunks are cut out of a larger piece. Angular Cuts - such as cutting a side hole in a pipe. Internal Cuts - the entire hole is enclosed in the material. Ripping - Long cuts to separate parts into halves. 1.1 SPEEDS AND FEEDS1.2 PRACTICE PROBLEMS |