Mechanical processing encompasses a variety of fundamental techniques and methods used to shape, finish, and refine materials into functional parts and products. Here is an introduction to the basic technical methods of mechanical machining in English:
Turning: This is one of the most common methods, where a workpiece is rotated while a cutting tool removes material to create circular features such as holes, threads, and tapers.
Milling: Milling involves a multi-toothed cutting tool that removes material by feeding into the workpiece, which can be stationary or moving, to create flat surfaces, slots, pockets, and complex profiles.
Drilling: Drilling is the process of creating holes in a workpiece using a rotary cutting tool called a drill. It is commonly used for through holes, blind holes, and for starting other hole-making processes.
Boring: Boring is similar to turning but is used to enlarge existing holes to a precise diameter and finish, often with a single-point cutting tool.
Grinding: This method uses an abrasive wheel to remove material and achieve a high level of surface finish. Grinding is often used for hard materials and for finishing operations where close tolerances are required.
CNC Machining: Computer Numerical Control (CNC) machining uses computers to control machine tools for precision machining. CNC machines can perform multiple operations with high repeatability and accuracy.
Threading: Threading is the process of cutting screw threads into a workpiece, either externally on a bolt or internally in a nut or hole. It can be done using specialized threading tools on lathes or milling machines.
Shaping: Shaping is done with a single-point cutting tool that is moved across the workpiece, which is usually held against a stop or guide, to create flat surfaces or simple geometric shapes.
Planing: Planing uses a straight cutting tool to remove material in a shearing action, typically to create flat surfaces.
Broaching: Broaching is a machining process that uses a series of cutting teeth on a broach tool to remove material in a pushing or pulling motion, creating precise internal or external features.
Laser Cutting: This method uses a high-powered laser to cut materials by melting, burning, or vaporizing them. It is highly accurate and can cut complex shapes with minimal material deformation.
Waterjet Cutting: In this process, a high-pressure stream of water, sometimes mixed with an abrasive material, is used to cut through various materials without the need for heat.
Electrical Discharge Machining (EDM): EDM uses electrical sparks to remove material from a workpiece, which is particularly useful for hard materials that are difficult to machine with conventional tools.
Ultrasonic Machining: This method uses the vibrations of an ultrasonic frequency to remove material from a workpiece, often used for brittle or hard materials.
These are just a few examples of the many mechanical machining methods available. Each method has its own set of advantages and is chosen based on the specific requirements of the part being manufactured, such as material type, desired tolerances, surface finish, and production volume.
