A machine tool is a piece of stationary, power-driven machinery used to form or mold metal or other materials into desired shapes. The four main techniques for shaping include shearing, pressing metallic parts into the desired shape, cutting superfluous material off the component in the form of chips, and applying electricity, ultrasonic energy, or corrosive chemicals to the material. The fourth category includes modern machine tools and technologies for cutting ultrahard metals that are inaccessible to more traditional techniques.
Single-point and multiple-point metal-cutting tools are distinguished by their points. A single-point cutting tool can be used to bore holes or enlarge existing ones. Turning and boring are done on lathes and boring mills. Multiple-point cutting tools, which feature two or more cutting edges, include broaches, drills, and milling cutters. There are two different sorts of operations: either the workpiece travels against the stationary stationary tool in a straight line, as on a shaper, or the stationary tool moves against the moving workpiece, as on a planer. Relief or clearance angles must be given to stop the tool surface below the cutting edge from rubbing against the workpiece. Cutting tools commonly have rake angles to provide a wedge-like movement in the creation of chips and to lessen heat and friction.
By feeding metal against a spinning cutting tool known as a milling cutter, a milling machine may cut metal. For a wide array of milling processes, cutters come in a variety of sizes and forms. Flat surfaces, grooves, shoulders, inclined surfaces, dovetails, and T-slots are all produced using milling machines. Different form-tooth cutters are used to round corners, cut gear teeth, and cut concave forms and convex grooves. There are ᴍᴀɴy different types of milling machines, which can be divided into the following categories: bed-type or production machines, machines developed for specialty milling applications, and knee-and-column machines, both horizontally and vertically.
In the video below, we’ll look at Amazing CNC Technology – Cutting Tools and Milling Machines.
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Video resource: GV